Let it not be said that Gun Guys aren’t creative. Some of them have considerable artistic talent — witness this unique wall map of Ohio created from used ammunition boxes. This one-of-a-kind wall decor was created by Forum member “MrBottleneck”.
Here’s the story behind the Ohio Ammo Box Map:
“My son and I have been just goofing around creating wall art (if you consider it that). We shoot every weekend and when we see pristine discarded ammo boxes in the trash we have been saving them.
The range officers thought we were funny (or possibly nuts). We originally just had enough to make a square. However, after a few months of scrounging, we finally had enough boxes to expand our square into the state of Ohio as planned. The Ohio Map now proudly hangs in the man cave downstairs, and goes well with our rifle/ammo hobby. I think it’s pretty cool and it cost zero to make.” — MrBottleneck
Another Ohio-based forum member, Adam, found his location on the map: “Hey, I live at the top right corner of the Remington box on the right side.”
MrBottleneck’s Ohio map inspired Forum member JohnB to create something similar. John, who lives in New York State, says: “That is very cool indeed, now maybe I can make one in the shape of New York minus New York City.” Yes, John, that would be a vision of New York we Gun Guys could appreciate.
At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. Cabela’s — Winchester XBR Hunter, $349.99 after Rebate
Here’s a very sweet deal on a handsome Winchester hunting rig with detachable box mag. Right now Cabelas.com is offering $170.00 off a Winchester XPR. Plus there’s a $50.00 Mail-in Rebate. That reduces your net cost for the rifle to $349.99. That’s a great deal for a rifle with a smooth bolt action (with 60° lift), nice trigger, and detachable box magazine. This XPR is offered is a wide variety of chamberings: .243 Win, 7mm-08, .270 Win, .308 Win, .30-06 Springfield, .300 WSM. GO TO DEAL PAGE.
Here’s a great deal on Pacific Tool & Gauge-crafted Rem actions with PT&G bolts. These are new Remington-made actions, blueprinted, with PT&G bolts fitted. Sold by PT&G’s retail outlet Cabin Fever Sports, these are pretty much the same as PT&G’s $640 actions with special promo pricing. The prices for the Right Hand actions are $380.00 to $420.00 depending on bolt face. Cabin Fever Sports also has roughly 20 Left Hand (LH) Rem actions at $399.99. You can choose trigger type and add options, such as bolt fluting, for a few dollars more. Order online, or call in and ask for special pricing.
3. CDNN — Smith & Wesson Model 617 10-Shot Revolver, $699.99
This Editor’s first really accurate handgun was a Smith & Wesson model 617 that could easily stack ten shots in a dime at 10 yards. It remains my favorite and most-used handgun, and I will never part with it. What can we say about the model 617? Every serious gun guy should own one. The single-action trigger pull is superb, and the accuracy surpasses most any semi-auto rimfire pistol, except for a few, very, very expensive target pistols. We like the 6″ version for the longer site radius, but the 4″-barrel 617 is also very accurate, and it balances better. CDNN’s $699.99 sale price may seem like a lot of money, but MSRP is $829.00 and most dealers are charging $750.00 or more for a new 6″-barrel 617. Get one — you won’t regret it.
4. Amazon — Plano Field Locker Double Long Gun Case, $111.50
A full 54″ long inside, this Plano Field Locker Double Long Gun Case will hold big rifles with 30-31″ barrels. The case has tough latches, watertight seals, and wheels for easy transport. Right now this case is just $111.50 with Free Prime Shipping. That’s less than half what you’d pay for a Pelican this big. Buyers confirms this Plano case is capacious and tough: “It holds two 17-lb bench rifles with 30″ barrels… even the airline baggage handlers couldn’t damage this case” (Smitty). “I bought this case for a Savage 110BA .338 Lapua Magnum, and it’s so nice that I just bought a second one for a 50 BMG. There are very few rifle cases that will fit the larger rifles.” (Bruce L.) “I’ve used one case in extensive
field abuse, and it has held up remarkably well. IMO there is not a finer case available on the market for any big-bore center-fire rifle. You can spend more; but I don’t think you can get any better.” (Gene).
5. Monmouth Reloading — 500 Lake City 5.56 Cases, $35.00
500 pieces of Lake City brass for just thirty-five bucks? Yep, that’s a great deal for anyone who needs .223/5.56 brass for varmint safaris and tactical comps. Monmouth Reloading is selling genuine, once-fired Lake City 5.56x45mm brass, thick-walled and sourced direct from the U.S. Military. Monmouth reports: “Our current stock of Lake City 5.56 looks to be all newer year Lake City head stamp but may contain a small percentage of other NATO headstamps. Lake City is a popular, reliable brass, normally capable of many reloads.” Monmouth includes 1% overage to account for any damaged brass. NOTE: Brass has crimped primers, so the pockets will need to be reamed or swaged prior to reloading.
Here’s an awesome deal from EuroOptic.com. Save $200 on a very popular Vortex Precision Shooting Tactical (PST) optic. On sale for just $499.99, this 4-16x50mm EBR-1 Scope offers tactical turrets with Milradian adjustments, an illuminated second focal plane EBR-1 reticle, 30mm main tube, side-focus parallax, plus a large, bright objective. What’s more, this scope weighs just 22 ounces — making it an ideal optic for a tactical or precision rifle, varmint blaster, or hunting rifle.
We use 1″-diameter Target Spots for sight-in and practice at 100-300 yards. These bright red/orange self-adhesive dots are easy to see. At 100 yards the high-contrast black diamond centers provide precise aiming points. We found this 10-pack of target spots on Amazon at a rock-bottom price. You get 630 total stick-on dots for just $9.65 with FREE Shipping. You can also get 360 Birchwood Casey 1″ dots from Midsouth for just $3.15, but shipping is extra. If you’re already ordering something from Midsouth, you may want to add the dots to your order.
8. Harbor Freight — 8-Drawer Rolling Tool Cabinet, $169.99
This 27″-wide Roller Tool Cabinet makes a nice addition to any loading room or workspace. The eight (8) drawers will hold tools, reamers, dies, and spare parts. Larger items (such as tumbling media), can be placed on the lower shelf. Now through the end of February, this rolling cabinet is on SALE for just $169.99. This is a two-piece cabinet, with six (6) drawers in the top section, and two (2) large drawers in the bottom unit. The two units bolt together. CLICK HERE for more details.
6.5 Creedmoor (right) shown with .308 Win (left) and .243 Win (center) for comparison.
Though most popular for competition applications (PRS and XTC), the 6.5 Creedmoor is also a capable hunting cartridge. This month Norma spotlights the 6.5 Creedmoor cartridge and outlines the game-harvesting capabilities of Norma 6.5 Creedmoor factory ammunition.
Origins of the 6.5 Creedmoor
Dave Emary, senior engineer at Hornady, asked fellow competitive shooters about their “wish list” for a mid-sized round with long-range potential. It needed to offer efficiency, good ballistics, fine accuracy, and reliable feeding from a magazine. To achieve these goals, Emary necked the .30 T/C to .264 caliber (6.5 mm). The shoulder on this case is well to the rear, so long bullets with high ballistic coefficients can be used in short actions. The efficient Creedmoor case and its modest powder charge deliver hard hits on big game while keeping recoil modest. The case runs well in magazines sized for the .308 Winchester, and because it is efficient, the 6.5 Creedmoor delivers velocities very close to the .260 Remington (which is basically a 6.5-308 Win) with less powder. The 6.5 Creedmoor cartridge has shown excellent accuracy in PRS competition, though the 6mm Creedmoor has proven more competitive, given its reduced recoil.
Hunting with the 6.5 Creedmoor
by Wayne van Zwoll
I learned about the 6.5 Creedmoor by way of a rifle from Todd Seyfert at Magnum Research. The Remington 700 action wears a carbon-fiber barrel with a Krieger stainless core. GreyBull Precision added a stock and a modified 4.5-14X Leupold scope. Its 1/3-minute elevation dial is calibrated specifically for 130-grain boat-tail spitzers at Creedmoor velocities. “Spin the elevation dial to the distance in yards, and aim dead-on.” said GreyBull’s Don Ward. Prone with a sling, I was soon banging steel at 500 yards.
By the charts, the 6.5 Creedmoor is a superb cartridge for deer-size game. But I caught only a late elk season with this new rifle. The 6.5×55 and .260 had taken elk for me; surely the Creedmoor would as well. Alas, the close shot I’d wanted, to ensure precise bullet placement, didn’t come. When on the final evening Don and I spied a bull far off, there was no approach. “Your call,” he shrugged. “The air is dead-still.” I snugged the sling, prone, and dialed to the yardage. Ribs spot-lit by a sinking sun, the bull paused. Craaack! The animal spun, sprinted and fell. That shot was twice as long as any I’d ever attempted at elk.
Whitetail hunting with a Ruger 77, then a trip to sub-Saharan Africa with a T/C Icon, kept the 6.5 Creedmoor in my ammo pouch. The T/C dropped a Vaal Rhebok at 250 yards, in stiff wind (photo below). Shorter pokes on a variety of game produced consistently quick kills. I found the Creedmoor’s limit with an eland.
A high ballistic coefficient helped a Creedmoor bullet slice stiff wind 250 yards to this Vaal Rhebok.
Since then, I’ve seen several animals brought to bag by the 6.5 Creedmoor. And I’ve used it in a variety of rifles on paper and steel targets to 1,200 yards. It has become one of my favorite cartridges for deer-size game. Its mild report and recoil make it easy to shoot accurately. It seems an inherently accurate cartridge too. I’ve punched half-minute groups from production-class rifles. The proliferation of hunting loads for the 6.5 Creedmoor includes none better than Norma’s 130-grain Scirocco. This sleek, polymer-nose bullet, with its 15° boat-tail and a G1 ballistic coefficient over .550, flies very flat. In expansion and penetration tests, it opens reliably down to 1,750 fps, and drives straight and deep. A bonded bullet, it stays in one piece after high-speed impact, routinely retaining more than 80 percent of its original weight.
Berger Twist-Rate Stability Calculator
On the updated Berger Bullets website you’ll find a handy Twist-Rate Stability Calculator that predicts your gyroscopic stability factor (SG) based on mulitiple variables: velocity, bullet length, bullet weight, barrel twist rate, ambient temperature, and altitude. This very cool tool tells you if your chosen bullet will really stabilize in your barrel.
LIVE DEMO BELOW — Just enter values in the data boxes and click “Calculate SG”.
How to Use Berger’s Twist Rate Calculator
Using the Twist Rate Calculater is simple. Just enter the bullet DIAMETER (e.g. .264), bullet WEIGHT (in grains), and bullet overall LENGTH (in inches). On its website, Berger conveniently provides this info for all its bullet types. For other brands, we suggest you weigh three examples of your chosen bullet, and also measure the length on three samples. Then use the average weight and length of the three. To calculate bullet stability, simply enter your bullet data (along with observed Muzzle Velocity, outside Temperature, and Altitude) and click “Calculate SG”. Try different twist rate numbers (and recalculate) until you get an SG value of 1.4 (or higher).
Gyroscopic Stability (SG) and Twist Rate
Berger’s Twist Rate Calculator provides a predicted stability value called “SG” (for “Gyroscopic Stability”). This indicates the Gyroscopic Stability applied to the bullet by spin. This number is derived from the basic equation: SG = (rigidity of the spinning mass)/(overturning aerodynamic torque).
At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. Brownells — Remington 700 SA Receiver with Trigger, $399.99
Here’s a genuine Remington short action receiver with X-Mark Pro trigger for $399.99 (or just $364.50 with coupon M3J). You can use this blued Short Action (SA) for your next hunting or varmint rifle. These Rem actions will also work with many third-party modular chassis systems. DOES NOT include receiver plug screws, recoil lug, triggerguard, triggerguard screws, and magazine components. NOTE: The sale price is $399.99, but you can save $35.00 with code M3J, good for Today Only, 2/20/2017.
2. Amazon.com — 34 dB Noise Rating Ear Muffs, $17.97
These 34 dB NRR earmuffs provide excellent sound protection without being too heavy and bulky. The lower section of the muff is trimmed for a narrower profile — that helps with rifle and shotgun stocks. The headband is adjustable and has comfortable padding. These Pro For Sho Muffs have earned a 4 1/2 star consumer rating, with over 1,600 Amazon customer reviews. NOTE: These fit pretty tight. If you have a very large hat size you might want a different brand.
3. Midsouth — Nosler Blem Bullets at Big Discounts
Nosler Factory Seconds are available at deep discounts from Midsouth Shooters Supply. These have correct weights/dimensions but may have minor cosmetic blemishes — such as tip discolorations or jacket water spots. The Accubond and Ballistic Tip bullets work great for hunting — your prey won’t care about water spots. And the RDF match bullets in .224 (70 grain) and .308 (175 grain) calibers can definitely do the job. But you need to act soon — quantities are limited. Once these factory seconds are gone, they’re GONE! Order now and save up to 53%.
4. Natchez — Special 5 Reloading Press Kit, $199.99
Looking for a great holiday gift for a family member getting started in metallic cartridge reloading? This RCBS Kit has everything a new reloader needs: single-stage press, powder measure, scale, powder trickler, priming tool, cartridge tray, “rocket” chamfer tool, case lube and more. This is an excellent entry-level reloading kit, on sale for just $199.99 at Natchez Shooters Supplies. We like the relatively compact Special 5 press for most reloading duties. Eventually you may want to add an additional, large heavy press, but this will get the job done. For the combined package, with all the tools one needs to hand-load quality ammo — this is a stunningly good deal at $199.99.
5. CDNN Sports — Ruger American Ranch Rifle (Tan), $349.99
Here’s a nice little varmint rifle from Ruger with good features and performance at a killer price: $349.99. You could pay that much just for a barrel. This .223 Rem rifle features a 16.5″ hammer-forged barrel barrel threaded 1/2″-28 at the muzzle for brake or suppressor. The action, which features a 70° three-lug bolt, and Picatinny-style scope rail, sits in an aluminum bedding block. The crisp trigger adjusts down to 3 pounds. With a weight (before optics) of 6.1 pounds, this is a handy carry-around varminter. We like this rifle. For $349.99 it’s a steal.
6. Midsouth — 17 HMR V-Max Ammo, $9.95 for 50 rounds
Need 17 HMR ammo for your planned 2017 varmint safaris? Then grab this Hornady V-Max ammo while you can at $9.95 for a 50-round box. This is a great price. Other vendors are selling the same Hornady ammo for as much as $15.00 per box. We’ve used this ammo and it was very accurate out of both semi-auto (Savage A17) and bolt-action (CZ 455) 17 HMR rifles.
7. Able Ammo — 247 Rounds .223 Rem, HP Bullets
Here you go — instant varmint safari. This Hornady-made .223 Rem ammo features quality hollowpoint bullets, rather than the not-so-accurate FMJ bullets with most bulk .223 ammo. This stuff is much more accurate (with lower ES/SD) than other low-priced ammo. Users report sub-MOA accuracy with this stuff. If you’re planning a varmint safari this spring but don’t have the time (or gear) to reload, pick up a couple boxes of this stuff and you’re good to go. There are 247 rounds in each polymer ammo “can”. This ammo usually comes loaded with Hornady’s XTP (eXtreme Terminal Performance) bullets which work great on varmints.
8. NRA & MidwayUSA — NRA Life Membership, $600.00
Here’s the best deal going right now on an NRA Life Membership. This normally costs $1500.00, but if you CLICK HERE, you can get a life membership for just $600.00, thanks to an NRA/MidwayUSA promotion. You can also save on 1-year, 3-year, and 5-year NRA memberships. Note: This is a limited-time offer.
Nosler Factory Seconds are now available at Midsouth Shooters Supply. These bullets are completely functional (with correct weights and dimensions), with only minor cosmetic blemishes. You’ll find slight tip discolorations, water spots, and little else. The Accubond and Ballistic Tip bullets will work great for hunting — your prey won’t care about the water spots. And the RDF match bullets can definitely do the job for Service Rifle matches (70gr .224) or F-TR events (175gr .308). Getting match-grade, 30-Cal 175-grainers for $21.49 is a total steal. But you need to act soon — quantities are limited and these factory seconds blems always go fast. Once they are gone, they’re GONE!
Nosler Rifle Bullets on Sale Include:
.224 70gr BTHP RDF Match — now $13.49/100 (regularly $28.84)
.308 175gr BTHP RDF Match, $21.49/100 (regularly $37.21)
6.5 Creedmoor vs. Other Mid-Sized 6.5mm Cartridges
The 6.5 Creedmoor is a very popular cartridge with the tactical and PRS crowd. This mid-size cartridge offers good ballistics, with less recoil than a .308 Winchester. There’s an excellent selection of 6.5mm bullets, and many good powder choices for this cartridge. When compared to the very accurate 6.5×47 Lapua cartridge, the 6.5 Creedmoor offers similar performance with less expensive brass options. For a tactical shooter who must sometimes leave brass on the ground, brass cost is a factor to consider. Here’s a selection of various 6.5mm mid-sized cartridges. Left to right are: 6.5 Grendel, 6.5×47 Lapua, 6.5 Creedmoor with 120gr A-Max, 6.5 Creedmoor with 142gr Sierra MK, and .260 Remington.
When asked to compare the 6.5 Creedmoor to the 6.5×47 Lapua, Rifleshooter.com’s Editor stated: “If you don’t hand load, or are new to precision rifle shooting, get a 6.5 Creedmoor. If you shoot a lot, reload, have more disposable income, and like more esoteric cartridges, get a 6.5×47 Lapua. I am a big fan of the 6.5×47 Lapua. In my personal experience, the 6.5×47 Lapua seems to be slightly more accurate than the 6.5 Creedmoor. I attribute this to the quality of Lapua brass.” But now that Lapua is producing top-quality 6.5 Creedmoor brass with small primer pockets, we could have a “second generation” 6.5 Creedmoor that rivals ANY mid-sized cartridge for efficiency AND accuracy. We will soon know how well the 6.5 Creedmoor cartridge performs with Lapua brass.
The first shipment of Lapua 6.5 Creedmoor brass has arrived in the USA. It features a small flash hole and small primer pocket. We have some for testing…
New Lapua 6.5 Creedmoor Brass Field Tests Soon
Our friends at 65Guys.com will be testing the new Lapua 6.5 Creedmoor brass next week. The goal will be to determine if Lapua’s new Small Primer Pocket/Small Flash Hole brass allows higher velocities than American-made brass (Hornady specifically). In addition the 6.5 Guys want to see how well the new Lapua brass holds up after dozen (or more) firing cycles. They’ll hammer the new brass pretty hard to see how it fares with repeated stout loads. Stay tuned…
Here are three tables from the Sierra Bullets Reloading Manual (5th Edition). IMPORTANT — This is just a sample!! Sierra has load data for many other 6.5mm bullet types, including FB, Spitzer, SBT, HPBT, and Tipped MK from 85 grains to 142 grains. To view ALL 6.5 Creedmoor DATA, CLICK HERE.
INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.
INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.
INDICATES MAXIMUM LOAD – USE CAUTION
LOADS LESS THAN MINIMUM CHARGES SHOWN ARE NOT RECOMMENDED.
Each week, Brownells releases a new product video. This week’s review spotlights Hornady match bullets and factory ammo of interest to PRS and tactical shooters. Hornady’s ELD Match ammunition is now offered in the popular 6.5 Creedmoor and 6mm Creedmoor chamberings, along with .223 Rem, 6.5 Grendel, 260 Rem, .308 Win, .30-06, .300 Win Mag, and .338 Lapua Mag. This ammo is loaded with Hornady’s ELD Match bullets which feature heat-resistant tips. The ELD bullet line offers impressive BCs at prices that are quite a bit more affordable than some other match bullets. For example, a 100-ct box of 130gr 6.5mm ELD Match bullets is $32.46 at Midsouth.
For 6.5 Creedmoor shooters, three bullet weights will be offered in factory-loaded 6.5 Creedmoor ELD Match ammo: 120 grain (SKU: 81491), 140 grain (SKU: 81500), and 147 grain (SKU: 81501). Hornady’s 6mm Creedmoor ELD Match ammo is offered in one weight, 108 grain (SKU: 81391).
The 6.5 Creedmoor and 6mm Creedmoor chamberings are very popular with PRS competitors. These cartridge types offer excellent accuracy, and a good ballistics with moderate recoil. Many factory rifles, such as the impressive new Tikka T3X A1, are offered in the 6.5mm chambering.
This video also features Hornady’s new Black Ammunition designed for gas guns. Offerings include 5.45x39mm, 6.5 Grendel, 6.8 SPC, 300 AAC BLK, 450 Bushmaster, and .308 Win. The 6.5 Grendel ammo attracted our attention. That chambering is inherently accurate and could be used successfully in an XTC match rifle or in the new PRS Gas Gun Series.
At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. Aero Precision — Cerakote AR Upper and Lower Kit, $399.99
Thinking of putting together an accurate AR for the new PRS Gas Gun series (or 3-Gun matches)? Here’s a good place to start. Aero Precision now offers a kit with Upper and Lower Receivers and Handguard — all with a durable Cerokote finish. Just add barrel, buttstock, trigger, controls and your bolt carrier group. Note: This kit will work with the .223 Rem and similar-length, larger-caliber cartridges such as the 6mmAR and 6.5 Grendel. If you want to shoot a 6.5 Creedmoor, you’ll need an AR10 platform rifle.
2. Midsouth — Labradar Chronograph and Accessories
Midsouth Shooters Supply is now carrying the advanced Labradar chronograph. This unique unit allows you to measure your shots without having to set up a tripod and skyscreens downrange. When you start using a Labradar, you’ll never want to go back to old-style chronographs. You can also purchase the Labradar from Bruno Shooters Supply. Price is $559.95 from either vendor. NOTE: In a few months Labradar plans to offer Bluetooth functionality, allowing you to control the machine remotely with your mobile device. This functionality will come via new software — the Bluetooth transceiver is built-in to all current Labradar units, so you can buy one now and use Bluetooth later (when the software is released this spring).
3. EuroOptic.com — Tikka T3 Liquidation Sale, Huge Discounts
Looking for a great price on an excellent hunting rifle? Here is the Tikka Deal of the Decade. EuroOptic.com has received nearly 3,500 Tikka T3 rifles, which will be sold at deep discounts as part of an inventory clearance program by Beretta, Tikka’s parent company. The Tikka T3 is a good, stout rifle with a smooth action, crisp trigger, and quality barrel. Accuracy is typically well under 1 MOA (for three shots). T3 barreled actions also are a good “core” for a tactical build. The strong T3 action handles detachable magazines, and fits a variety of third-party stocks.
4. Natchez — RCBS ChargeMaster Dispenser, $259.99
Here’s a very good deal on the popular RCBS ChargeMaster combo scale/powder dispenser. This unit sells elsewhere for up to $389.00. You may want to act quickly as sale pricing changes frequently and many other vendors have recently raised their prices. Grafs.com sells this for $382.99 now while the current Amazon.com price is $296.99. You can save a lot through Natchez right now.
If you are serious about your precision firearms, you need one of these. We use the Lyman Electronic Trigger Pull Gauge to test the triggers on all our match and varmint rifles. The unit is precise and repeatable. Once you try one of these you won’t want to go back to crude spring trigger gauges. Amazon.com offers this unit for $51.95 with free shipping for Prime members. Walmart also has it for $51.95 with free shipping or free in-store pickup.
6. Sportsman’s Guide — Frankford Arsenal Case Tumbler Kit
For just $69.99, this Frankford Arsenal Kit provides everything you need to clean brass: Vibratory Tumbler, Rotary Media Separator, Bucket, Corn Cob Media (3 lbs.), and Brass Polish. The Case Tumbler holds up to 600 9mm cases or 350 .223 Rem cases. The separator system is generous, with a 3.5-gallon bucket. NOTE: Sportsman’s Guide Buyers Club members can purchase for $62.99.
7. Amazon — Tipton 12-pc Ultra-Jag Set, $16.99
Brass jags work well — with one hitch. Strong copper solvents can leech metal from the jag itself, leaving a tell-tale blue tint on your patches. This “false positive” can lead shooters to over-clean their barrels. No such problem with these nickel-plated Ultra Jags. For just $16.99 you can get 12 jags in a handy, clear-top fitted caddy. All Tipton nickel-plated jags have 8-32 thread, except for the .17 caliber jag which has a 5-40 thread.
8. Amazon — Neiko Digital Calipers, $16.45
Even if you have a good set of calipers, you may want to get one of these Neiko 01407A Digital Calipers. The #1 best-selling digital caliper on Amazon.com, this Neiko tool features a large LCD Screen and measures up to 6.0 inches. With over 2300 customer reviews, this product has earned an overall rating of 4.4 out of 5 stars. It’s hard to go wrong for $17.74, even if you just use these as a spare set for measuring group sizes and case trim lengths.
This illustration shows headspace measurement for the popular .308 Winchester cartridge, which headspaces on the shoulder. Image copyright 2015 Ultimate Reloader.
In this Brownells Tech Tip, Brownells gun tech Steve Ostrem explains what headspace is and why it’s one of the most critical measurements for nearly all firearms. Even if you’re an experienced rifle shooter, it’s worth watching this video to refresh your understanding of headspace measurements, and the correct use of “GO” and “NO-GO” gauges.
Headspace Definition
In firearms, headspace is the distance measured from the part of the chamber that stops forward motion of the cartridge (the datum reference) to the face of the bolt. Used as a verb, headspace refers to the interference created between this part of the chamber and the feature of the cartridge that achieves the correct positioning. Different cartridges have their datum lines in different positions in relation to the cartridge. For example, 5.56x45mm NATO ammunition headspaces off the shoulder of the cartridge, whereas .303 British headspaces off the forward rim of the cartridge.
If the headspace is too short, ammunition that is in specification may not chamber correctly. If headspace is too large, the ammunition may not fit as intended or designed and the cartridge case may rupture, possibly damaging the firearm and injuring the shooter. (Source: Wikipedia)
Headspace Gauges
Headspace is measured with a set of two headspace gauges: a “Go” gauge, and a “No-Go” gauge. Headspace gauges resemble the cartridges for the chambers they are designed to headspace, and are typically made of heat-treated tool steel. Both a “Go” and a “No-Go” gauge are required for a gunsmith to headspace a firearm properly. A third gauge, the “Field” gauge, is used (as the name implies) in the field to indicate the absolute maximum safe headspace. This gauge is used because, over time, the bolt and receiver will wear, the bolt and lugs compress, and the receiver may stretch, all causing the headspace to gradually increase from the “factory specs” measured by the “Go” and “No-Go” gauges. A bolt that closes on “No-Go” but not on “Field” is close to being unsafe to fire, and may malfunction on cartridges that are slightly out of spec. (Source: Wikipedia)
To learn more, read Brownell’s longer article Headspace Gauges and How to Use Them. Among other things, this explains the relative lengths of “Go”, “No-Go”, and “Field” gauges. The “Field” is actually the longest: “The GO gauge corresponds to the SAAMI (Sporting Arms & Ammunition Manufacturer’s Institute) minimum chamber length, while the FIELD gauge usually matches the maximum chamber depth, or slightly less. NO-GO gauges are an intermediate length between minimum and maximum, that, technically, is a voluntary dimension. A firearm that closes on a NO-GO gauge and does not close on a FIELD gauge may not give good accuracy and may have very short cartridge case life from the ammunition re-loader’s standpoint.”
Headspace Gauges
