Spring varmint season is well underway, and we just showcased six groundhog hunting videos. So here’s a very accurate Half-Mile ‘Hog rifle, that can drill a groundhog at long range. While just about any cartridge from a 22 Magnum on up will do the job on a groundhog at close range, when you want to “reach out and touch” your prey at very long distance, it takes a case capable of tossing a heavier, wind-bucking projectile at ultra-high speeds. This week we feature a 6mm Remington Ackley Improved (6mm AI) belonging to our friend John Seibel, who ran the Varmints for Fun website for many years.
John’s handsome BAT-actioned rifle sends the 87gr V-Max at a blistering 3675 fps. With its 1/4-MOA accuracy and flat-shooting ballistics, this gun is a varmint’s worst nightmare, a rig that regularly nails groundhogs at a half-mile (880 yards) and beyond.
Quarter-MOA Accuracy For Long-Distance Varminting
GunDay Report by John Seibel
John reports: “So far this gun has been an awesome long-distance varmint rig, with enough velocity to smack those critters hard at 800 yards and beyond. I have some more testing to do, but it seems that the 87gr V-Max (molyed) pushed by 52 grains of N160 or 51.5 grains of RL-19 shoots very well indeed. Velocity runs around 3675 fps. I shot consistent 1″ groups at 500 yards with both of these loads. Warning: These are max loads that work in my rifle, so start at least 10% lower and work up.
My fire-forming procedure is just jam and shoot. I start with a powder (such as H414) that works for the parent case, fire a few cases as I work up the load to where I get a well-formed case, then shoot them at varmints. Then I work my load up with the newly-formed cases over a chrono. If a load looks good at 100 yards, I will go straight for 200 yards. I’ve seen that some loads which grouped well at 100 won’t shoot well at 200. If it is consistent at 200, then I’ll shoot it a steel plate at 500 yards. Then the truth will be told.
Man I love that BAT action! I have tried some Berger 88gr Lo-Drag bullets as well. They have the same BC as the V-Maxs but offer excellent accuracy. The action is BAT’s Model B round action configured Right Bolt, Left Port, with a fluted .308-faced bolt. The port is 3.0 inches wide — perfect for the 6mm Rem Improved cartridge’s OAL. I use a NightForce 8-32x56mm NXS scope mounted to BAT’s 20-MOA aluminum Weaver-style base. I use Burris Signature Zee rings because they are self-aligning and easy on scope tubes, plus you have the option of adding more MOA if needed.
Krieger with Harrell Brake
The barrel is a stainless Krieger 1:12″ twist Heavy Varmint contour, finished at 26″. I installed a Harrell’s muzzle brake because I hate recoil and I like to be able to spot my hits when target shooting and hunting–especially hunting.
When hunting I am usually by myself so when I eyeball a varmint I want to see my shot flatten him … and I hardly ever miss (heh-heh). Make sure you have your earplugs in though — that muzzle brake is loud!
Easy-Steering Thumbhole Varminter
The stock is Richard’s Custom Rifles Model 005 Thumbhole Varminter. This is a big stock that rides the sand bags very well. Took me a while to get used to this stock as I had never shot a thumbhole before. It is very comfortable and easy to control when you are shooting a moving target. In fact, my first kill with this rifle was a coyote at a little over 200 yards, she was moving along at a slow clip and I had to give her the ole’ Texas heart shot before she disappeared over a hill! (It’s pretty rare for me to shoot moving varmints though — at long-range, I want my cross-hairs steady on the target.)
Regarding the stock selection, I like Richard Franklin’s stocks [now out of production] because they are well-suited to my kind of shooting. I prefer a stock that is flat most of the way back towards the action because when I’m shooting out of my truck window it has to balance around mid-point. Also his stocks seem to track very well on the bench. I guess the stocks I like the most are his Model 001 and Model 008 F-Class. [Editor’s note: John often shoots from the driver’s seat of his truck because he is partially paralyzed. He also has a hoist in his truck bed for his wheelchair. Even with his mobility challenges, John tags more varmints in a season than most of us ever will.]
Choice of Caliber — A 6mm with More Punch for Long Distance
I picked the 6mm Rem Improved mainly because it has that long neck for holding long bullets and it doesn’t burn the throats out as fast as a .243 AI would. I don’t use Remington brass; it splits when fire-forming and seems to work-harden fast. Another reason I picked the 6mm Improved was what I saw in the field–it seemed to be a perfect long-range groundhog getter. I saw my stocker, Richard Franklin, flat smack groundhogs out to 900+ yards with regularity. The OAL of a 6mm Improved does make it hard to remove a loaded round from a standard Remington 700 action. That’s why I went with the BAT Model B, with its longer 3.0″ port. For a standard action, a .243 AI might function better.
As for the 6 Dasher, from what I have read, I think it is a fine round. I’m a hunter though and a lot of case-forming isn’t worth it to me. Forming the Ackleyized cases is bad enough. The 6-250 is a real screamer and very accurate but it doesn’t have the capacity to drive the heavier bullets as well as the 6mm Improved. I have tried a .243 WSSM, also with a Richard’s stock (#008) and a BAT action. It may not shoot as well as the 6mm Rem Improved, but I like those short fat cases.
John’s Views on the Great Moly Debate
Editor: John started with moly-coated bullets for this 6mm Rem AI rifle, but he has moved away from that. He does have considerable experience with coated bullets, and now, at least with custom, hand-lapped barrels, he normally uses uncoated bullets. He now favors coated bullets only for the small .17 caliber.
Moly or no moly… hmm? I have used moly and Danzac for several years, mainly Danzac. In my experience, both moly and Danzac can work well for somebody who shoots a lot of rounds before cleaning. A barrel has to be broken-in correctly whether you use moly or not. I have done break-in with naked bullets, using the conventional method of shooting and cleaning till the copper stops sticking. I have also gone through the break-in process using molyed bullets from the start. It seems to me the barrels broke-in more readily with moly bullets than with naked bullets. I think if there are any rough or sharp places in the barrel the slick molyed bullet doesn’t grab it as badly and the moly will “iron” the flaw out without leaving copper behind.
The main mistake I think most people make with moly is improper cleaning. By that I mean they don’t get the bore clean from the beginning. Some people will scoff at me for this but I use JB bore paste for most all my cleaning, hardly ever use a brush. Just JB and Montana Extreme or Butch’s Bore Shine. It works for me! Now shooting molyed bullets works fine to say 500 yards, but any further and you really need a lot of tension on the bullet. If not you will get bad flyers.
Personally, I use coated bullets only with .17 cal rounds now. I did use them initially in my 6mm Rem AI but I am starting to move away from that. With proper break-in, the fine custom barrels we have now will not copper if you clean correctly and don’t push those bullets too fast! And remember that powder-fouling build-up is an accuracy-killer too. That is another reason I use a lot of JB paste.
John lives and works on a farm in Virginia. Getting rid of intrusive varmints is part of the job of running the farm. Here is one of John’s bolt-action pistols, which is very handy when shooting from a vehicle.
The Guru of Varmints For Fun
For many years John Seibel ran the popular Varmints For Fun website (now offline). This site offered excellent advice for hunters and reloaders. John covered a wide variety of varmint chamberings, from big 6mm wildcats, to the popular 6BR, 22BR and .22-250 caliber varmint rounds, and even the micro-caliber wildcats such as the 20 Vartarg and 20 PPC. Shown below is one of his favorite rifles, a 20 PPC with a special short version of Richard Franklin’s Model 008 stock.
John tells us: “I guess one reason I started my web site is that I was getting a lot of inquiries about hunting groundhogs, custom rifles and reloading. Plus I thought it was a fine way to get young people interested in the shooting sports. Lord knows hunting and firearms aren’t taught any more. I get a lot of young hunters and shooters asking what’s the best caliber for hunting varmints, and they’ll ask for reloading help too. It’s a shame, but many of them have no one to teach them. I do my best to help.
Showing others that a person can still shoot, even with a disability, is another reason I started my web site. I am a C 6-7 Quadraplegic, which means I have no grip in my hands. Imagine shooting those 1.5 oz Jewels that way! I had a therapist tell me I wouldn’t be able to shoot or reload once I got out of the hospital…shows you how much he knows! First time I got home from the hospital it was deer season and I had Pops park me at the edge of some woods. Well I had a 7-point buck on the ground in thirty minutes! Being raised on a farm didn’t hurt none either–it helped me figger ways to jury-rig stuff. Of course I couldn’t have done much if it wasn’t for my family and my lovely wife Cathy[.]”
John’s Favorite 20 PPC Varmint Rifle
Cartridge History Lesson — the Original .244 Remington
Here’s bit of cartridge history. The 6mm Remington, parent of John’s 6mm AI, actually started its life with a different name, the “.244 Remington”. What we now know as the “6mm Remington” was originally called the .244 Remington. The cartridge was renamed because it was not a commercial success initially, being eclipsed by the .243 Winchester. The .244 Remington and the 6mm Remington are identical — only the name was changed.
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The 30 BR is an amazing little cartridge. However, 30 BR shooters do have to neck-up 6mmBR or 7mmBR brass and then deal with some issues that can arise from the expansion process. One of our Forum members was concerned about the donut that can form at the new (expanded) neck-shoulder junction. Respected bullet-maker Randy Robinett offers tips on how to deal with the “dreaded donut”.
The Forum member was concerned about thinning the brass if he turned his 30 BR necks after expansion: “Everything I have found on 30 BR case-forming says to simply turn off the bulge at the base of the neck caused by the old 6BR shoulder. I expanded my first case and measured the neck at 0.329″ except on the donut, where it measures 0.335″. Looking inside the case… reveals a groove inside the case under the donut. Now, it is a fact that when I turn that neck and remove the donut, the groove is still going to be there on the inside? That means there is now a thin-spot ring at the base of the neck that is .005 thinner than the rest of the neck. Has anyone experienced a neck cracking on this ring?”
Randy Robinett, who runs BIB Bullet Co., is one of the “founding fathers” of the 30 BR who help prove and popularize the 30 BR for benchrest score shooting. Randy offers this advice on 30 BR case-forming:
While the thinner neck-base was one of our original concerns, unless one cuts too deeply INTO the shoulder, it is not a problem. For my original 30BR chamber, thirty (30) cases were used to fire 6,400 rounds through the barrel. The cases were never annealed, yet there were ZERO case failures, neck separations, or splits. The case-necks were turned for a loaded-round neck diameter of .328″, and, from the beginning, sized with a .324″ neck-bushing.
The best method for avoiding the ‘bulge’ is to fire-form prior to neck-turning (several methods are successfully employed). Cutting too deeply into the shoulder can result in case-neck separations. I have witnessed this, but, with several barrels and thousands to shots fired, have not [personally] experienced it. The last registered BR event fired using that original barrel produced a 500-27x score and a second-place finish. [That’s] not bad for 6K plus shots, at something over 200 firings per case.
Check out the 30 BR Cartridge Guide on AccurateShooter.com
You’ll find more information on 30 BR Case-forming in our 30 BR Cartridge Guide. Here’s a short excerpt from that page — some tips provided by benchrest for score and HBR shooter Al Nyhus:
30 BR Case-Forming Procedure by Al Nyhus
The 30 BR cartridge is formed by necking-up 6mmBR or 7mmBR brass. You can do this in multiple stages or in one pass. You can use either an expander mandrel (like Joe Entrekin does), or a tapered button in a regular dies. Personally, I use a Redding tapered expander button, part number 16307. This expands the necks from 6mm to .30 cal in one pass. It works well as long as you lube the mandrel and the inside of the necks. I’ve also used the Sinclair expander body with a succession of larger mandrels, but this is a lot more work and the necks stay straighter with the Redding tapered button. This button can be used in any Redding die that has a large enough inside diameter to accept the BR case without any case-to-die contact.
Don’t be concerned about how straight the necks are before firing them the first time. When you whap them with around 50,000 psi, they will straighten out just fine! I recommend not seating the bullets into the lands for the first firing, provided there is an adequate light crush-fit of the case in the chamber. The Lapua cases will shorten from approx. 1.550″ to around 1.520″ after being necked up to 30-caliber I trim to 1.500″ with the (suggested) 1.520 length chambers. I don’t deburr the flash holes or uniform the primer pockets until after the first firing. I use a Ron Hoehn flash hole deburring tool that indexes on the primer pocket, not through the case mouth. — Al Nyhus
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While a 16.5-pound benchrest gun is wonderfully stable on the bench, it’s not what you want in a field rifle. There is much to be said for a slim, light-weight, and easy-handling firearm when it comes to a walking varmint adventure. Eben Brown, who runs E. Arthur Brown Company, has created just such a rifle — the Model 97D Falling Block. When chambered for the 6PPC cartridge it delivered quarter-MOA accuracy in a splendidly portable package that tips the scales at just over six pounds without scope. The Model 97D is fairly unique in its lightweight and compact format — that makes it a great field-carry varmint rig. [Editor’s Note: This is an older article and we use some more recent photos of other model 97D Rifles to better illustrate the design and layout.]
Catalog photo of EABCO Model 97D Falling Block rifle.
Excellent Accuracy Made Easy for Sport Shooters
by Eben Brown, E. Arthur Brown Company
You don’t have to be a benchrest competitor to enjoy shooting one of the most accurate centerfire cartridges in the world, the 6mm PPC. With no complicated brass forming or finicky reloading processes, you can be shooting near half-inch groups right from the start and hone your skills to near quarter-inch groups by your second outing–at least that’s how it worked for me, and I’m NOT a good bench rest shooter! Developed by Louis Palmisano and Ferris Pindell, the 6PPC has won more bench rest accuracy competitions than any other cartridge. Easily made from Lapua .220 Russian brass, the 6mm PPC has a small primer and uniquely small flash hole that is credited for much of its inherent accuracy. The “short, fat” shape and nearly straight body contribute to efficient, consistent powder burning and stable chamber performance (it grips the chamber well during ignition).
The Brown Model 97D — A Slim, Accurate 6-Pound Rifle
The 97D was developed from the EABCO “BF” falling block silhouette pistols that have won world championships and set 500-meter distance records. In operation, the 97D falling block slides perpendicularly and closes the breech with absolutely zero camming leverage. This makes it a perfect test-bed to measure the chamber performance needed for hand-loading most other single-shot rifles accurately. At the reloading bench, I worked up a load with the now fully shaped 6mm PPC brass. I full-length sized the brass, trimmed, and primed each case the same as I would with any other cartridge, and began loading. With the resultant load, I easily shot a 5-shot 1/4″ group, a personal best for me. See target photo at right.
Making 6mm PPC Cartridges
Full-length size, prime, charge with powder, and seat a bullet… sounds like what you do with any other cartridge, doesn’t it? In fact, the only difference with 6mm PPC is that it has to be fired once (fire-formed) to expand to its final shape and size. But even fire-forming shots produce exceptional accuracy. I shot several 3/4″ groups while fire-forming at 100 yards, with my best group at nearly half-inch–so the time spent fire-forming was wonderful! In the photo, the parent .220 Russian case is on the left, while the fire-formed 6PPC case is on the right.
The EABCO 6mm PPC Chamber – 6PPC without Neck-turning!
We dimensioned our 6mm PPC chamber reamer to cut a chamber that fits Lapua 220 Russian brass closely without neck-turning. Naturally we recommend you use the Lapua brass for best results.
[Editor’s Note: We asked Eben if he had tried a 6BR chambering in a model 97D. He explained that, because of the extractor design, the falling block action works better with a smaller rim diameter: “The larger .308 rim width creates some issues. This design works best with cartridges no wider than the 30/30 case, or the 7.62×39 case, from which the 22 Russian case was derived. Cases with .308-sized rims develop more bolt thrust and work best with a different type of extractor than we use in the 97D. I love the 6BR, but I recommend the 6PPC for our 97D.”]
6mm PPC Reloading Data for Model 97D
The following loads were worked up in a Model 97D Rifle with 24″ barrel chambered for 6mm PPC with the chamber neck reamed to .275″ to fit Lapua brass without neck-turning. Lapua 220 Russian brass was full-length sized and fire-formed to 6mm PPC using 65gr V-Max bullets, CCI BR4 primers, and 24.5gr of VV N135 powder. Eben cautions: Load at Your Own Risk — Always start 10% low and work up
The following optimum loads were worked up with Vihtavuori N135, 58gr and 65gr V-Max bullets, and CCI BR4 primers. Please Note: There really is no “standard” for 6mm PPC. It can be finicky. But once you find what works best for you, the cartridge performs superbly. The accuracy will astound you.
Model 97D Specifications
OAL (with 24″ Barrel): 38″
Approx. Weight without Scope: 6-6.5 lbs.
Barrel: 17-26″ Chromoly or Stainless
Stock: Walnut w/Hardwood Grip Cap
Trigger: Tuned 16-24 ounces
This video shows the Loading Technique for Model 97D Rifle
Powder Selection — Choosing the Right Propellant
I’ve found that my maximum single-shot loads reach the same level of performance as bolt gun loads when I use one level slower burning powder type and proper chamber preparation. For example, when the VihtaVuori loading guide shows a maximum with VV N133, my best single shot load ends up being with the slower burning VV N135. Here’s the simplest way to proceed: Use a starting load from the loading guide and increase the powder charge until you detect some resistance to block movement with your thumb. Next, charge a case with that same amount of powder, tap it to settle, and look to see if the case is full to the base of the neck. If it’s not full, step up to the next slower-rated powder and repeat the load development process. There’s a powder burn rate chart for all brands of powder in the front of the current VihtaVuori Loading Guide. When you have the maximum load that will fill the case and still allow the 97D single-shot to open and eject freely after firing, you’re ready to shoot some groups!
Loading for Best Chamber Performance
In the model 97D rifle you can check chamber performance easily. After firing a shot, see if you can press the block downward with only your thumb on the top of the block. If it moves freely, you’ve got good chamber performance.
I use three pressure indicators when developing loads on the Model 97D. First I check the block with my thumb. Then I check to see if the cartridge sticks at all when ejecting. And finally, I check the primer for the excessive flattening that would indicate too much pressure. Generally, the hottest load that still allows the gun to open and eject freely ends up being my most accurate shooting load.
Chamber Preparation
Best chamber performance happens when a cartridge grips the chamber and does not drive backward significantly. When you want something to grip (rather than slip), you want to make sure there is no lubricant on the gripping surfaces. Case forming lube and gun oil are the two lubricants you want to remove. Clean your 6mm PPC cases after sizing (I wipe mine with a paper towel and Windex). Clean your chamber with a chamber sized jag and patch wetted with acetone. (Note: protect your chamber with a thin coat of Clenzoil when you’re not out shooting.)
Conclusions of a Single-Shot Sport Shooter
I love the 6mm PPC! It was easy to hand-load for the cartridge and it was easy to get excellent results. The group shot on this page was with the 65gr bullet and a rifling twist of 1:10. I usually recommend a 1:12 twist and the 58gr bullet because customers have reported superb accuracy (better groups than I can shoot). But the 5-shot ¼” group I shot with this set-up is my personal best ever–so naturally I’m thrilled!
While it’s hard to beat the 6PPC’s accuracy in a Model 97D rifle, my company currently offers the rifle in a variety of chamberings including 17 Hornet, 219 Donaldson Wasp, and 6mm BRM. The 97D Standard features a blued 24″ chrome-moly barrel, French Gray receiver, anodized buttstock transition, 2-ring scope mount and swivel studs.– Eben Brown
About the production Model 97D Rifles: “The 97D is a small frame single shot rifle that’s suitable for big game as well as small game and varmint hunting. It originally evolved from our World Champion long range silhouette pistol action and incorporates the same accurate gun making processes. The 97D action itself is inherently accurate and simple. Onto this we fit an EABCO Accuracy Barrel, precision turned and threaded between centers. Each chamber is individually reamed on-center and individually head spaced. We feel the crown is so critical to accuracy that we leave it until after the gun is finished. Our 11 degree target crowns are cut last and left bright — our trademark finishing touch.”
Spring varmint season is just around the corner. So here’s a very accurate Half-Mile ‘Hog rifle, that can drill a groundhog at long range. While just about any cartridge from a 22 magnum on up will do the job on a groundhog at close range, when you want to “reach out and touch” your prey at very long distance, it takes a case capable of tossing a heavier, wind-bucking projectile at ultra-high speeds. This week we feature a 6mm Remington Ackley Improved (6mm AI) belonging to our friend John Seibel, who ran the Varmints for Forum website for many years. John’s handsome BAT-actioned rifle sends the 87gr V-Max at a blistering 3675 fps. With its 1/4-MOA accuracy and flat-shooting ballistics, this gun is a varmint’s worst nightmare, a rig that regularly nails groundhogs at a half-mile (880 yards) and beyond.
Quarter-MOA Accuracy For Long-Distance Varminting
GunDay Report by John Seibel
John reports: “So far this gun has been an awesome long-distance varmint rig, with enough velocity to smack those critters hard at 800 yards and beyond. I have some more testing to do, but it seems that the 87gr V-Max (molyed) pushed by 52 grains of N160 or 51.5 grains of RL-19 shoots very well indeed. Velocity runs around 3675 fps. I shot consistent 1″ groups at 500 yards with both of these loads. Warning: These are max loads that work in my rifle, so start at least 10% lower and work up.
My fire-forming procedure is just jam and shoot. I start with a powder (such as H414) that works for the parent case, fire a few cases as I work up the load to where I get a well-formed case, then shoot them at varmints. Then I work my load up with the newly-formed cases over a chrono. If a load looks good at 100 yards, I will go straight for 200 yards. I’ve seen that some loads which grouped well at 100 won’t shoot well at 200. If it is consistent at 200, then I’ll shoot it a steel plate at 500 yards. Then the truth will be told.
Man I love that BAT action! I have tried some Berger 88gr Lo-Drag bullets as well. They have the same BC as the V-Maxs but offer excellent accuracy. The action is BAT’s Model B round action configured Right Bolt, Left Port, with a fluted .308-faced bolt. The port is 3.0 inches wide — perfect for the 6mm Rem Improved cartridge’s OAL. I use a NightForce 8-32x56mm NXS scope mounted to BAT’s 20-MOA aluminum Weaver-style base. I use Burris Signature Zee rings because they are self-aligning and easy on scope tubes, plus you have the option of adding more MOA if needed.
Krieger with Harrell Brake
The barrel is a stainless Krieger 1:12″ twist Heavy Varmint contour, finished at 26″. I installed a Harrell’s muzzle brake because I hate recoil and I like to be able to spot my hits when target shooting and hunting–especially hunting.
When hunting I am usually by myself so when I eyeball a varmint I want to see my shot flatten him … and I hardly ever miss (heh-heh). Make sure you have your earplugs in though — that muzzle brake is loud!
Easy-Steering Thumbhole Varminter
The stock is Richard’s Custom Rifles Model 005 Thumbhole Varminter. This is a big stock that rides the sand bags very well. Took me a while to get used to this stock as I had never shot a thumbhole before. It is very comfortable and easy to control when you are shooting a moving target. In fact, my first kill with this rifle was a coyote at a little over 200 yards, she was moving along at a slow clip and I had to give her the ole’ Texas heart shot before she disappeared over a hill! (It’s pretty rare for me to shoot moving varmints though — at long-range, I want my cross-hairs steady on the target.)
Regarding the stock selection, I like Richard Franklin’s stocks because they are well-suited to my kind of shooting. I prefer a stock that is flat most of the way back towards the action because when I’m shooting out of my truck window it has to balance around mid-point. Also his stocks seem to track very well on the bench. I guess the stocks I like the most are his Model 001 and Model 008 F-Class. [Editor’s note: John often shoots from the driver’s seat of his truck because he is partially paralyzed. He also has a hoist in his truck bed for his wheelchair. Even with his mobility challenges, John tags more varmints in a season than most of us ever will.]
Choice of Caliber — A 6mm with More Punch for Long Distance
I picked the 6mm Rem Improved mainly because it has that long neck for holding long bullets and it doesn’t burn the throats out as fast as a .243 AI would. I don’t use Remington brass; it splits when fire-forming and seems to work-harden fast. Another reason I picked the 6mm Improved was what I saw in the field–it seemed to be a perfect long-range groundhog getter. I saw my stocker, Richard Franklin, flat smack groundhogs out to 900+ yards with regularity. The OAL of a 6mm Improved does make it hard to remove a loaded round from a standard Remington 700 action. That’s why I went with the BAT Model B, with its longer 3.0″ port. For a standard action, a .243 AI might function better.
As for the 6 Dasher, from what I have read, I think it is a fine round. I’m a hunter though and a lot of case-forming isn’t worth it to me. Forming the Ackleyized cases is bad enough. The 6-250 is a real screamer and very accurate but it doesn’t have the capacity to drive the heavier bullets as well as the 6mm Improved. I have tried a .243 WSSM, also with a Richard’s stock (#008) and a BAT action. It may not shoot as well as the 6mm Rem Improved, but I like those short fat cases.
John’s Views on the Great Moly Debate
Editor: John started with moly-coated bullets for this 6mm Rem AI rifle, but he has moved away from that. He does have considerable experience with coated bullets, and now, at least with custom, hand-lapped barrels, he normally uses uncoated bullets. He now favors coated bullets only for the small .17 caliber.
Moly or no moly… hmm? I have used moly and Danzac for several years, mainly Danzac. In my experience, both moly and Danzac can work well for somebody who shoots a lot of rounds before cleaning. A barrel has to be broken-in correctly whether you use moly or not. I have done break-in with naked bullets, using the conventional method of shooting and cleaning till the copper stops sticking. I have also gone through the break-in process using molyed bullets from the start. It seems to me the barrels broke-in more readily with moly bullets than with naked bullets. I think if there are any rough or sharp places in the barrel the slick molyed bullet doesn’t grab it as badly and the moly will “iron” the flaw out without leaving copper behind.
The main mistake I think most people make with moly is improper cleaning. By that I mean they don’t get the bore clean from the beginning. Some people will scoff at me for this but I use JB bore paste for most all my cleaning, hardly ever use a brush. Just JB and Montana Extreme or Butch’s Bore Shine. It works for me! Now shooting molyed bullets works fine to say 500 yards, but any further and you really need a lot of tension on the bullet. If not you will get bad flyers.
Personally, I use coated bullets only with .17 cal rounds now. I did use them initially in my 6mm Rem AI but I am starting to move away from that. With proper break-in, the fine custom barrels we have now will not copper if you clean correctly and don’t push those bullets too fast! And remember that powder-fouling build-up is an accuracy-killer too. That is another reason I use a lot of JB paste.
John lives and works on a farm in Virginia. Getting rid of intrusive varmints is part of the job of running the farm. Here is one of John’s bolt-action pistols, which is very handy when shooting from a vehicle.
The Guru of Varmints For Fun
For many years John Seibel ran the popular Varmints For Fun website (now offline). This site offered excellent advice for hunters and reloaders. John covered a wide variety of varmint chamberings, from big 6mm wildcats, to the popular 6BR, 22BR and .22-250 caliber varmint rounds, and even the micro-caliber wildcats such as the 20 Vartarg and 20 PPC. Shown below is one of his favorite rifles, a 20 PPC with a special short version of Richard Franklin’s Model 008 stock.
John tells us: “I guess one reason I started my web site is that I was getting a lot of inquiries about hunting groundhogs, custom rifles and reloading. Plus I thought it was a fine way to get young people interested in the shooting sports. Lord knows hunting and firearms aren’t taught any more. I get a lot of young hunters and shooters asking what’s the best caliber for hunting varmints, and they’ll ask for reloading help too. It’s a shame, but many of them have no one to teach them. I do my best to help.
Showing others that a person can still shoot, even with a disability, is another reason I started my web site. I am a C 6-7 Quadraplegic, which means I have no grip in my hands. Imagine shooting those 1.5 oz Jewels that way! I had a therapist tell me I wouldn’t be able to shoot or reload once I got out of the hospital…shows you how much he knows! First time I got home from the hospital it was deer season and I had Pops park me at the edge of some woods. Well I had a 7-point buck on the ground in thirty minutes! Being raised on a farm didn’t hurt none either–it helped me figger ways to jury-rig stuff. Of course I couldn’t have done much if it wasn’t for my family and my lovely wife Cathy[.]”
John’s Favorite 20 PPC Varmint Rifle
Cartridge History Lesson — the Original .244 Remington
Here’s bit of cartridge history. The 6mm Remington, parent of John’s 6mm AI, actually started its life with a different name, the “.244 Remington”. What we now know as the “6mm Remington” was originally called the .244 Remington. The cartridge was renamed because it was not a commercial success initially, being eclipsed by the .243 Winchester. The .244 Remington and the 6mm Remington are identical — only the name was changed.
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If you wonder how ammo is made, starting with raw metal, check out this video from Hornady. It shows how bullet jackets are formed from copper, followed by insertion of a lead core. The jacket is then closed up over the core with the bullet taking its final shape in a die (a cannelure is applied on some bullet types). Next the video shows how cartridge brass is formed, starting with small cups of brass. The last part of the video shows how cases are primed and filled with powder, and how bullets are seated into the cases, using an automated process on a giant assembly-line. CLICK Link below to watch video:
Hornady’s New 150,000-sq-ft Ammo Production Center
In 2018, Hornady opened a new, state-of-the-art factory. The 150,000-sq-ft Hornady West Facility, featured in the video below, handles ammunition production and product distribution — Hornady produces millions of rounds annually. Hornady cartridge brass and bullets will continue to be produced at Hornady’s 100,000+ square foot factory in Grand Island, Nebraska. The Grand Island factory is open for tours Monday through Thursday. Hornady Manufacturing was founded by Joyce Hornady in 1949, so 2019 marked the company’s 70th anniversary.
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The 30 BR is an amazing little cartridge. However, 30 BR shooters do have to neck-up 6mmBR or 7mmBR brass and then deal with some issues that can arise from the expansion process. One of our Forum members was concerned about the donut that can form at the new (expanded) neck-shoulder junction. Respected bullet-maker Randy Robinett offers tips on how to deal with the “dreaded donut”.
The Forum member was concerned about thinning the brass if he turned his 30 BR necks after expansion: “Everything I have found on 30 BR case-forming says to simply turn off the bulge at the base of the neck caused by the old 6BR shoulder. I expanded my first case and measured the neck at 0.329″ except on the donut, where it measures 0.335″. Looking inside the case… reveals a groove inside the case under the donut. Now, it is a fact that when I turn that neck and remove the donut, the groove is still going to be there on the inside? That means there is now a thin-spot ring at the base of the neck that is .005 thinner than the rest of the neck. Has anyone experienced a neck cracking on this ring?”
Randy Robinett, who runs BIB Bullet Co., is one of the “founding fathers” of the 30 BR who help prove and popularize the 30 BR for benchrest score shooting. Randy offers this advice on 30 BR case-forming:
While the thinner neck-base was one of our original concerns, unless one cuts too deeply INTO the shoulder, it is not a problem. For my original 30BR chamber, thirty (30) cases were used to fire 6,400 rounds through the barrel. The cases were never annealed, yet there were ZERO case failures, neck separations, or splits. The case-necks were turned for a loaded-round neck diameter of .328″, and, from the beginning, sized with a .324″ neck-bushing.
The best method for avoiding the ‘bulge’ is to fire-form prior to neck-turning (several methods are successfully employed). Cutting too deeply into the shoulder can result in case-neck separations. I have witnessed this, but, with several barrels and thousands to shots fired, have not [personally] experienced it. The last registered BR event fired using that original barrel produced a 500-27x score and a second-place finish. [That’s] not bad for 6K plus shots, at something over 200 firings per case.
Check out the 30 BR Cartridge Guide on AccurateShooter.com
You’ll find more information on 30 BR Case-forming in our 30 BR Cartridge Guide. Here’s a short excerpt from that page — some tips provided by benchrest for score and HBR shooter Al Nyhus:
30 BR Case-Forming Procedure by Al Nyhus
The 30 BR cartridge is formed by necking-up 6mmBR or 7mmBR brass. You can do this in multiple stages or in one pass. You can use either an expander mandrel (like Joe Entrekin does), or a tapered button in a regular dies. Personally, I use a Redding tapered expander button, part number 16307. This expands the necks from 6mm to .30 cal in one pass. It works well as long as you lube the mandrel and the inside of the necks. I’ve also used the Sinclair expander body with a succession of larger mandrels, but this is a lot more work and the necks stay straighter with the Redding tapered button. This button can be used in any Redding die that has a large enough inside diameter to accept the BR case without any case-to-die contact.
Don’t be concerned about how straight the necks are before firing them the first time. When you whap them with around 50,000 psi, they will straighten out just fine! I recommend not seating the bullets into the lands for the first firing, provided there is an adequate light crush-fit of the case in the chamber. The Lapua cases will shorten from approx. 1.550″ to around 1.520″ after being necked up to 30-caliber I trim to 1.500″ with the (suggested) 1.520 length chambers. I don’t deburr the flash holes or uniform the primer pockets until after the first firing. I use a Ron Hoehn flash hole deburring tool that indexes on the primer pocket, not through the case mouth. — Al Nyhus
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Are you a confirmed wildcatter? Do you like to experiment with custom cartridge types? Or do you just like the extra performance you can get from a specialty cartridge such as a 20 Vartarg or 22-250 AI? Well, if you love wildcat cartridges, you’ll probably enjoy this book. Now available for the first time since 2003, The Handloader’s Manual of Cartridge Conversions explains the processes and tools needed to convert standardized brass into hundreds of different rifle and pistol cartridge types. A vast variety of case designs are covered — from vintage cartridge types to modern, cutting-edge wildcats.
This classic reference guide has been revised with an easy-to-search format, complete with a full index of hundreds of cartridges. This book belongs on the shelf of any hand-loader who enjoys making and shooting wildcat cartridges. However do note that much of the text is unchanged from earlier editions. For some cartridge types, the author recommends “parent” brass brands that are no longer available. In other situations, there may be more convenient conversions now offered. Nonetheless this is an important resource. As one verified purchaser explains: “Great reference for making the cartridges that are hard to get or no longer in production. Offers an alternative to the the time, expense and effort of having to re-chamber a classic. Saves ‘Grandpa’s shooters’ from becoming safe queens.”
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Here’s a tip for guys who shoot the 6 PPC, 6 Dasher, or other wildcat cartridges that require fire-forming. Use your fouler shots to fire-form new cases. That way your fouler shots do “double-duty” and you get your brass fire-formed without putting extra rounds through your expensive barrel.
This procedure is recommended by Joel Kendrick, the 2004 IBS 600-yard Shooter of the Year. After he cleans his barrel, Joel knows it takes two or three shots to foul in the bore before accuracy returns. When shooting his PPC, Joel uses those fouler shots to fire-form his new brass. Joel explains: “I like to have relatively new brass always ready. By fire-forming a couple cases after each barrel-cleaning during a match, by the end of the weekend I’ve got a dozen or more freshly fire-formed cases to put into the rotation. If you do this with your fouler shots you get your fire-forming accomplished without using up any extra barrel life.”
We thank Joel for this smart suggestion. For those who do not have a dedicated barrel for fire-forming, this should help keep your round-count down. Joe currently works as the Supplier Quality Process Engineer for MMI-TruTec, a company that offers barrel surface coatings that can further extend your barrel life.
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With the price of premium brass topping $1.00 per case for popular match cartridges, it makes sense to consider annealing your brass to extend its useful life. You don’t want to chuck out brass that costs a buck a case (or more)! Forum member Darrell Jones offers a full range of brass prep, brass forming, and brass restoration (annealing, ultra-sonic cleaning) at very affordable prices. Starting at just $20 per 100 cases ($25/100 for magnum cases), Darrell’s company, DJ’s Brass, will anneal your used brass using state-of-the-art Bench-Source annealing machines. Annealing plus ultrasonic cleaning starts at $35 per 100 cases ($45 for magnum cases). For a bit more money Darrell can also uniform the primer pockets and chamfer the case necks.
Custom Neck-Turning Services
Another great service DJ’s Brass provides is precision neck-turning. Darrell can neck-turn any size case to your specified neck-wall thickness. The price starts at $60.00 per hundred for standard cases or $75.00/100 for magnum size with a $25.00 minimum order. And if you’ve got a bucket of brass to neck-turn, that’s fine with Darrell — he recently neck-turned 1500 pieces of brass for one customer!
DJ’s Brass can process everything from .17 Fireball all the way up to the big magnum cases. And the job gets done quickly. Darrell normally offers a 10-day turn-around. For most jobs, Darrell tells us, he gets the processed brass to the Post Office within three business days. For more info, visit DJsBrass.com or call Darrell Jones at 205-461-4680. IMPORTANT: Contact Darrell for shipping instructions BEFORE sending any brass for processing. ALL BRASS MUST BE DE-PRIMED before you send it.
• Anneal Case Necks Only ($20.00/100 normal or $25.00/100 magnum)
• Ultrasonic Cleaning, Check Necks, and Annealing ($35.00/100 normal or $45.00/100 magnum)
• Full Service: Uniform primer pockets, Chamfer case mouths, Ultrasonic cleaning and Polishing, Anneal case necks (Starting at $50.00/100 call for quote)
• Neck Turning or trim-to-length Custom Order Service (Starting at $60.00/100 for standard cases and $75.00/100 for magnums)
• Hydro-Form Specialty cases (such as Dasher) $0.60 (sixty cents) each minimum of 100 pieces plus actual return shipping cost
• Expand Case Necks and Anneal brass (Call for Price)
• Create False Shoulder for Fire-Forming (Call for Price)
• Ultrasonic Cleaning of Muzzle Brake, $5.00 plus actual shipping
Hydro-Forming Cartridge Brass
Hydro-forming by Darrell costs $0.60 per case with a minimum order of 100 pieces. After hydro-forming, Darrell can also neck-turn the case for an additional charge (call for combined quote). In addition to the 6mmBR-based cases shown below, Darrell can now hydro-form 6PPC cases from .220 Russian brass.
With Darrell’s hydro-forming service you don’t have to buy any special dies or other equipment. Darrell says: “Simply send me the brass you need or have it dropped-shipped to me along with a fired case that has not been sized. If you need formed brass for a new build (gun not yet fired), let me know and I will size the brass to fit within .001″ of a PT&G GO gauge.”
DJ’s Brass Offers Specialized Custom Services
Darrell tells us: “At DJ’s Brass, we can handle all your brass refurbishing needs. From ultrasonic cleaning to custom annealing for specific wildcat cartridges. We can expand your necks from .22 caliber to .30 caliber and anneal shoulders for consistent bump-back. We can turn your case-necks and trim the brass to your specs. For some cartridge types, I can pre-form cases to assist in fire-forming a wildcat cartridge. We also remove the carbon build-up in muzzle brakes. Don’t lose your accuracy by having carbon build up and close off the clearance required for the most accurate bullet release through a muzzle brake.” Note: Extra charges apply for neck-turning and neck expansion operations, or specialized cartridge-forming operations. Please call Darrell at 205-461-4680 for special services pricing.
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The 30BR is an amazing little cartridge. However, 30BR shooters do have to neck-up 6mmBR brass and then deal with some issues that can arise from the expansion process. One of our Forum members was concerned about the donut that can form at the new (expanded) neck-shoulder junction. Respected bullet-maker Randy Robinett offers tips on how to deal with the “dreaded donut”.
The Forum member was concerned about thinning the brass if he turned his 30BR necks after expansion: “Everything I have found on 30BR case-forming says to simply turn off the bulge at the base of the neck caused by the old 6BR shoulder. I expanded my first case and measured the neck at 0.329″ except on the donut, where it measures 0.335″. Looking inside the case… reveals a groove inside the case under the donut. Now, it is a fact that when I turn that neck and remove the donut, the groove is still going to be there on the inside? That means there is now a thin-spot ring at the base of the neck that is .005 thinner than the rest of the neck. Has anyone experienced a neck cracking on this ring?”
Randy Robinett, who runs BIB Bullet Co., is one of the “founding fathers” of the 30BR who help prove and popularize the 30 BR for benchrest score shooting. Randy offers this advice on 30BR case-forming:
While the thinner neck-base was one of our original concerns, unless one cuts too deeply INTO the shoulder, it is not a problem. For my original 30BR chamber, thirty (30) cases were used to fire 6,400 rounds through the barrel. The cases were never annealed, yet there were ZERO case failures, neck separations, or splits. The case-necks were turned for a loaded-round neck diameter of .328″, and, from the beginning, sized with a .324″ neck-bushing.
The best method for avoiding the ‘bulge’ is to fire-form prior to neck-turning (several methods are successfully employed). Cutting too deeply into the shoulder can result in case-neck separations. I have witnessed this, but, with several barrels and thousands to shots fired, have not [personally] experienced it. The last registered BR event fired using that original barrel produced a 500-27x score and a second-place finish. [That’s] not bad for 6K plus shots, at something over 200 firings per case.
Check out the 30BR Cartridge Guide on AccurateShooter.com
You’ll find more information on 30BR Case-forming in our 30 BR Cartridge Guide. Here’s a short excerpt from that page — some tips provided by benchrest for score and HBR shooter Al Nyhus:
30BR Case-Forming Procedure by Al Nyhus
The 30BR cartridge is formed by necking-up 6BR or 7BR brass. You can do this in multiple stages or in one pass. Most of the top shooters prefer the single-pass method. You can use either an expander mandrel (like Joe Entrekin does), or a tapered button in a regular dies. Personally, I use a Redding tapered expander button, part number 16307. This expands the necks from 6mm to .30 cal in one pass. It works well as long as you lube the mandrel and the inside of the necks. I’ve also used the Sinclair expander body with a succession of larger mandrels, but this is a lot more work and the necks stay straighter with the Redding tapered button. This button can be used in any Redding die that has a large enough inside diameter to accept the BR case without any case-to-die contact.
Don’t be concerned about how straight the necks are before firing them the first time. When you whap them with around 50,000 psi, they will straighten out just fine! I recommend not seating the bullets into the lands for the first firing, provided there is an adequate light crush-fit of the case in the chamber. The Lapua cases will shorten from approx. 1.550″ to around 1.520″ after being necked up to 30-caliber I trim to 1.500″ with the (suggested) 1.520 length chambers. I don’t deburr the flash holes or uniform the primer pockets until after the first firing. I use a Ron Hoehn flash hole deburring tool that indexes on the primer pocket, not through the case mouth. — Al Nyhus
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With the price of premium brass topping $90/100 for many popular cartridges, it makes sense to consider annealing your brass to extend its useful life. Forum member Darrell Jones offers a full range of brass prep, brass forming, and brass restoration (annealing, ultra-sonic cleaning) at very affordable prices. Starting at just $15 per 100 cases ($20/100 for magnum cases), Darrell’s company, DJ’s Brass, will anneal your used brass using state-of-the-art Bench-Source annealing machines. Annealing plus ultrasonic cleaning starts at $25.00 per 100 cases ($30 for magnum cases larger than 0.473″ rim). If you just want your cases ultrasonically cleaned (no anneal), that costs $15 per 100 ($20/100 for magnum).
Custom Neck-Turning Services
Another great service DJ’s Brass provides is precision neck-turning. Darrell can neck-turn any size case to your specified neck-wall thickness. The price is $0.30 per case (normal size) or $0.40 (magnum size) with a $20.00 minimum order. And if you’ve got a bucket of brass to neck-turn, that’s fine with Darrell — he recently neck-turned 1500 pieces of brass for one customer!
DJ’s Brass can process everything from .17 Fireball all the way up to the big magnum cases. And the job gets done quickly. Darrell has a 10-day turn-around guarantee. For most jobs, Darrell tells us, he gets the processed brass to the Post Office within three business days. DJ’s Brass charges only actual shipping fees, using USPS flat-rate boxes. For more info, visit DJsBrass.com or call Darrell Jones at 205-461-4680. IMPORTANT: Contact Darrell for shipping instructions BEFORE sending any brass for processing. ALL BRASS MUST BE DE-PRIMED before you send it.
• Ultrasonic Cleaning + Annealing ($25.00/100 normal or $30/100 magnum)
• Ultrasonic Cleaning and Polishing ($15.00/100 normal or $20/100 magnum)
• Anneal Case Necks (after checking for splits) ($15.00/100 normal or $20/100 magnum)
• COAL Trim and Chamfer Case Mouths ($0.20 per case, $20.00 minimum order)
• Uniform, Square, and Chamfer Primer Pockets ($0.15 per case, $20.00 minimum order)
• Expand Case Necks and Anneal brass (Call for Price)
• Create False Shoulder for Fire-Forming (Call for Price)
DJ’s Brass Offers Specialized Custom Services
Darrell tells us: “At DJ’s Brass, we can handle all your brass refurbishing needs. From ultrasonic cleaning to custom annealing for specific wildcat cartridges. We can expand your necks from .22 caliber to .30 caliber and anneal shoulders for consistent bump-back. We can turn your case-necks and trim the brass to your specs. For some cartridge types, I can pre-form cases to assist in fire-forming a wildcat cartridge. We also remove the carbon build-up in muzzle brakes. Don’t lose your accuracy by having carbon build up and close off the clearance required for the most accurate bullet release through a muzzle brake.” Note: Extra charges apply for neck-turning and neck expansion operations, or specialized cartridge-forming operations. Please call 205-461-4680 for special services pricing.
Darrell has cleaned and annealed cases for shooters from across the country. Here are testimonials (this Editor reviewed all the original emails so I can confirm these are real):
“Your services were good with a quick turn-around time. Quality of the case annealing looked great[.]” — Tom, in Alaska
“The [300 Win Ackley] batch you did for me came back looking great.” — Chuck, in Arizona
“Since I started using Lapua brass, I’ve gotten gotten enough reloads out of them to notice that the necks were no longer sealing as well as I’d like. A friend suggested annealing them. I remembered seeing DJ’s ad on AccurateShooter.com and thought I’d give him a try. Not only did my [.308 brass] come back sorted exactly as I had sent them out, all had been so thoroughly cleaned that I realized I had been leaving lube on them after forming. DJ had taken the time to enclose a note cautioning me to brush the inside case necks and do a full-length resize for the first loading. And all 200 cases were back in my hands in DAYS, not weeks! Great service, great price, great follow up.” — Jim, in Alabama
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A full-time lawyer, Robert Whitley is also an avid prone, Highpower, and cross-course shooter. Over the past two years, Robert has pioneered a cartridge for these disciplines (as well as long-range varminting) based on the 6.5mm Grendel necked down to 6mm. Robert calls the cartridge the “6mmAR”.
The 6mmAR cartridge has performed very well in AR-based comp guns, both with shorter bullets loaded to mag length, and 105-107gr bullets single-loaded. Robert has complete info about the 6mmAR on his website, 6mmAR.com, including recommended loads and field test results. Robert has also developed a higher capacity version, with the shoulder blown forward and a shorter neck. He calls this the 6mmAR Turbo. This round can drive 105-108gr bullets in the 2850-2900 range, and it has proven very accurate. It is one of the best options for AR-platform space-gun shooters.
Though making 6mmAR brass from 6.5 Grendel brass is quite straight-forward and simple, Robert receives many questions about forming the brass, so he recently prepared a video. The two-minute video shows how quick and easy the brass-forming process can be:
Robert also builds and sells products for across-the-course shooters, including complete AR uppers, chambered in a variety of calibers, including 6mmAR. Jerry Tierney, 2005 NBRSA 1000-yard champion, has a 6mmAR upper built by Robert and Jerry says the upper “Absolutely shoots great. I love it.” In the past few months, Jerry has broken many NRA senior records with his new 6mmAR-chambered rifle.
My fire-forming procedure is just jam and shoot. I start with a powder (such as H414) that works for the parent case, fire a few cases as I work up the load to where I get a well-formed case, then shoot them at varmints. Then I work my load up with the newly-formed cases over a chrono. If a load looks good at 100 yards, I will go straight for 200 yards. I’ve seen that some loads which grouped well at 100 won’t shoot well at 200. If it is consistent at 200, then I’ll shoot it a steel plate at 500 yards. Then the truth will be told.
Choice of Caliber — A 6mm with More Punch for Long Distance
The Guru of Varmints For Fun
The 30 BR is an amazing little cartridge. However, 30 BR shooters do have to neck-up 6mmBR or 7mmBR brass and then deal with some issues that can arise from the expansion process. One of our Forum members was concerned about the donut that can form at the new (expanded) neck-shoulder junction. Respected bullet-maker Randy Robinett offers tips on how to deal with the “dreaded donut”.
The Brown Model 97D — A Slim, Accurate 6-Pound Rifle
Making 6mm PPC Cartridges
The EABCO 6mm PPC Chamber
The following optimum loads were worked up with Vihtavuori N135, 58gr and 65gr V-Max bullets, and CCI BR4 primers. Please Note: There really is no “standard” for 6mm PPC. It can be finicky. But once you find what works best for you, the cartridge performs superbly. The accuracy will astound you.
Loading for Best Chamber Performance
If you wonder how ammo is made, starting with raw metal, check out this video from 
The 30 BR is an amazing little cartridge. However, 30 BR shooters do have to neck-up 6mmBR or 7mmBR brass and then deal with some issues that can arise from the expansion process. One of our Forum members was concerned about the donut that can form at the new (expanded) neck-shoulder junction. Respected bullet-maker Randy Robinett offers tips on how to deal with the “dreaded donut”.
Here’s a tip for guys who shoot the 6 PPC, 6 Dasher, or other wildcat cartridges that require fire-forming. Use your fouler shots to fire-form new cases. That way your fouler shots do “double-duty” and you get your brass fire-formed without putting extra rounds through your expensive barrel.
With the price of premium brass topping $1.00 per case for popular match cartridges, it makes sense to consider annealing your brass to extend its useful life. You don’t want to chuck out brass that costs a buck a case (or more)! Forum member 
