Introducing the Hybrid-X Shooting Rest
The new, patent-pending Hybrid-X front rest from 21st Century Shooting is a true hybrid between a joystick and a traditional “wheel” rest. Windage (left/right point of aim) changes are made via a control stick that extends back to the shooter. This control stick travels on a horizontal plane. Elevation is controlled through a knob on the end of the control stick, OR a large, traditional wheel on the post. So you have TWO elevation control options — the Big Wheel or the smaller knob on the end of the control rod.
The entire central assembly of the rest is mounted on a circular plate that is mounted in the base plate. This central assembly and plate is called the Target Acquisition System or “T.A.S”. This allows the user to easily self-align the rifle and rear bag by simply loosening a few levers. Self-alignment will help minimize set-up time and improve repeatability by eliminating binding of the rifle in the shooting bags. In addition, this will allow for rapid windage adjustment if needed to acquire a target. This really is an important advancement — you can simply place the rest on bench or ground, and then use the T.A.S. function to get perfect target alignment. No more trial and error placing the rest multiple times to get the correct orientation to the target.
The Hybrid-X design team tells us: “Smooth operation and ease of control are what this rest represents. The utilization of a ball screw plus bearing block provides glass-smooth elevation adjustment. And the elevation is stable.” Guys, this is important. Unlike some joystick rests which move when you release the joystick, on the Hybrid-X, the cradle holding your rifle does not “droop” when you release the Hybrid-X control stick. Repeatability from shot to shot is provided by the rock-solid platform and the fact that elevation does NOT change when you let go of the control stick.
The entire center section of the rest rotates as one unit for fast, perfect alignment to target.
Key Features of New Hybrid-X Shooting Rest
1. Weight of rifle is not a factor in ease of controls due to the use of ball screws/bearing blocks in the post.
2. Windage range is more than you would ever need — more than other rests on the market.
3. Elevation is not lost from shot to shot even if you release control stick.
4. Total weight of Hybrid-X prototype is 28 pounds.
5. Designed, machined and built in the USA!
How does it work? Very well indeed! The folks at 21st Century report: “Everyone that has shot off this rest so far is blown away with the repeatability, smoothness, and the ease of the controls.” The innovative Hybrid-X rest is Patent Pending, and is 100% made in the USA. Priced at $1950.00, the Hybrid-X is in production now. You won’t see it (yet) on the 21st Century website, but you can email or call (260) 273-9909 to order. Currently, expect a 60-day wait from time of order to delivery. The rest includes a front bag.
Field Test of New 21st Century Rest in Competition
Report from F-Class Competitor Bret Solomon
I would like to first start out by saying “Thank You” to all the persons involved at 21st Century Shooting for getting me this new rest. I used the new rest for the first time on Friday, August 7, 2020 for a team match in The Michigan State Long Range Team Match Championship. My team took first in the F-Open Division and I had a very quick learning curve with the rest. Saturday, I again used the rest for the Michigan Long Range/F-Class Regional individual matches. We shot one match and called the rest of the day due to weather concerns. Sunday we came back for three matches.
As the day progressed, the winds came up and starting switching considerably more and I put the new rest to work. I was able to concentrate on wind switches, feeling very confident that the gun was staying where I put it in the rest and on target. Adjustments were very smooth and I was able to shoot multiple shots with no elevation changes. The controls are in a position where you can get behind the gun and not have to reach out for changes. Yes the rest performed great — I was able to come from behind to take a one-point win in the F-Open Division. I believe the new rest from 21st Century Shooting made a significant difference for me. In the future, I hope the Hybrid-X rest will help advance my shooting game.
Once again, thank you to 21st Century Shooting for a great addition of technology, innovation, craftsmanship, and customer service to the shooting community. — Bret Solomon
British rimfire ammo-maker ELEY has created a new global match series. Shooters compete at there local ranges, and then scores are compared to other shooters around the world. There will be five Precision Club Masters competitions: Benchrest, Prone, 3-Position, Practical, and Pistol. At the end of the season, the top competitors will receive glory, and, yes, valuable prizes from ELEY.
ELEY is excited to launch its brand new ELEY Precision Club, allowing competitors from all over the world to compete against each other from their local shooting clubs. Scores will be tallied online through an exciting Masters series of events. Winners can be recognized as a World Champion. In addition, top shooters compete for valuable cash, ammunition, and clothing prizes.
ELEY states: “We love… to connect with shooters across the globe. With an uncertain future, and the current global situation restricting travel, the ELEY Precision Club hopes to provide shooters with a fun, safe alternative for competing. The fun must go on!” The ELEY Precision Club will provide shooters of all ages and abilities from a range of disciplines to compete on a global stage against other shooters internationally.
Here is our friend Joe Friedrich. Joe has set many benchrest records with ELEY .22 LR ammunition.
First Precision Club Event Will Be ELEY Benchrest Masters
The first competition to be hosted on the myELEY.com platform is the ELEY benchrest masters. Competitors will shoot six (6) 25-bull targets at a distance of 50 meters. Scores must be uploaded to the myELEY.com dashboard by 11:59 pm on November 1, 2020 (GMT). That’s just before midnight in the United Kingdom.
Image from National Rimfire Benchrest Association of Ireland (NRBAI).
How to Enter ELEY Precision Club Events
To participate, you first need to register on the ELEY Precision Club homepage. Once you register, ELEY will create a personalised myELEY.com competition dashboard for you and send you login details by email.
To get started: Complete the registration form. Once your competition dashboard is created you will have instant access to any future ELEY online competitions. The myELEY.com personalised dashboard compiles statistics and results and tracks your world ranking. Once your personal dashboard is created, you’ll get instant access to all future ELEY Precision Club online competitions.
To learn more about the 5-discipline ELEY Masters series, or to enter the first benchrest match, go to Eley.co.uk/precisionclub.
Look carefully at the photo above. That stylish black rear bag doesn’t look anything like an Edgewood or Protektor — it’s a Lenzi bag from Italy. The front Bag-holder on the SEB Neo Rest is also a Lenzi product.
Lenzi Rear Sand Bag
Pat Reagin of PMA Tool offers a really superb rear bag that comes from Italy. Pat tells us: “We are now carrying rear bags made by Italian benchrester Alberto Lenzi. Made in Italy, these Lenzi bags are AWESOME! They are available for short range and one that is slighty taller for long range.” The Lenzi rear bags feature a big, 8″ x 6″ footprint with a thick, slightly concave base that sits very flat on the bench top. Lenzi bags are very stable with a reassuring “dead” feel on the bench. Guys who have tried this bag really like it. Pat says: “I can’t explain it, but the bag seems to absorb energy/recoil better than other bags — the gun tracks a little better and I get back on target really well.” CLICK HERE for more information: Lenzi Long Range Rear Bag | Lenzi Standard Rear Bag.
– Black leather with Cordura at stock contact points with blue stitching.
– 1/2″ flat between medium ears.
– Heavy 8″x6″ base with built-in “donut”.
– Weight about 15.5 lbs filled with heavy sand in bottom & white sand in ears.
Lenzi Replacement Top for SEB NEO Front Rest
A common complaint about the SEB NEO rest is the rest top, specifically the three-piece bag. This rest top made by Alberto Lenzi addresses the issue by replacing the entire rest top. The rest top features a more conventional design and includes a traditional style front bag that conforms to IBS and NBRSA rules.
Here’s a way some smart shooters are dealing with Pandemic Social Distancing requirements. At the Manatee Gun Club in Florida, match organizers devised tall, portable plexiglass barriers between the benches. These barriers shield each shooter from his neighboring competitor. And shooters say there is an added benefit — there is less perceived noise and muzzle blast from nearby fellow competitors.
AccurateShooter Forum member CaptainMal reports: “We just finished a steel shoot at Manatee using ALL the benches with dividers attached to each. Prior to today we were not allowed to use all the benches as they are five feet, not six feet apart [as required by social distancing regulations]. Now we can take more shooters per relay and we found some positive unintended consequences.” READ Forum Thread.
Each divider attaches to a bench. The divider can be easily removed for storage by folding up the legs so it is flat to carry/store. These dividers are relatively light-weight making them easy to put in place. In addition, because the dividers are transparent, Range Safety Officers (and spectators) can view the shooters. Notably, the Manatee competitors also reported that the dividers offered a “dramatic reduction in muzzle blast and some noise reduction also”.
CaptainMal explains: “Most all of us have experienced magnum explosions next to us on the bench and/or muzzle brakes directing a concussion at us as we shoot. GONE. We built all these because of the virus restrictions we had to deal with. Well now we can use all the benches, put on a normal program and reap the benefits of full visibility and no muzzle blast distractions.”
Al Benarroch (Forum member “Alibaba”) designed and built these dividers. Al is happy to share his design with anyone else wanting or needing to have something like this for their range. Here is Al last season BEFORE the COVID-19 range restrictions. To see him now you just look through the divider.
The Southpaw Challenge — How to Position Left-handed Shooters
These dividers were designed for right-handed shooters, but the Manatee group has some thoughts about adapting the system for lefties: “We will work on that at the IBS-style shoot next Saturday. The deal is we have 16 benches. Let us say we have 25 shooters next Saturday. There may be four left-handers. We can put 12 -14 shooters on each relay and just leave open a single bench next to them.” Also with Manatee’s five-foot spacing between benches, there is actually six-foot-plus spacing if the left-hand shooter is always situated on a bench to the RIGHT side of a right-handed shooter’s bench. That provides maximum spacing based on their actual sitting positions.
Credit Boyd Allen for finding this story in our Shooter’s Forum.
.009” Group Record Stood for 40 Years
In 1973 Mac McMillan shot an amazing 100-yard, .009″ five-shot group in a benchrest match. The .009″ group was measured with a 60x microscope for verification. Mac McMillan shot the group using a handbuilt prototype McMillan rifle with an early McMillan stock.
Mac’s .009″ group was the “Holy Grail” of rifle accuracy. This .009″ record was considered by many to be unbreakable, a record that would “stand for all time”. Well, it took 40 years, but someone finally broke Mac’s record with an even smaller group. In 2013, Mike Stinnett shot a .0077″ five-shot group using a 30 Stewart, a .30 caliber wildcat based on the 6.5 Grendel. Stinnett’s NBRSA record .0077″ group now stands as the smallest 100-yard group ever shot in registered benchrest competition.*
Read About .0077″ group HERE.
Stinnett’s success doesn’t diminish the significance of Mac McMillan’s .009″ group in the history of benchrest competition. For four decades Mac’s group stood as the ultimate standard of rifle accuracy*. For those of you who have never seen Mac McMillan’s .009″ group, here it is, along with the NBRSA World Record certificate. The target now hangs in the McMillan Family Museum.
*Somebody else might claim a smaller group, but unless moving backers or electronic targets were used, it cannot be verified. Moving target backers are used at registered benchrest matches to ensure that five (5) shots are actually fired in each group. That eliminates any doubt.
Have a good look at the photos below — this may be one of the most noteworthy target strings we’ve ever published. What you can see is the effect of barrel tuner position on point of impact (POI). You can clearly see that the tuner position alters the up/down POI location in a predictable fashion.
This remarkable 15-shot sequence was shot by French benchrester Pascal Fischbach using his 6 PPC fitted with a CG (Carlito Gonzales) action and a Bukys barrel tuner.
Pascal reports: “After [bullet] seating and load validation, I put the Bukys tuner on, screwing it out 10 turns. According to Carlito, the CG’s super stiff action-to-barrel fit gives a faster vibration modulus that is detrimental below 10 turns [position of the tuner].” Pascal’s procedure was to screw out the tuner 1/4 turn progressively from one shot to the next. He shot one bullet at each tuner position, with a total of 15 shots.
Left Half of Target Strip (shots with 1/4 rotation change of tuner in sequence)
Right Half of Target Strip (shots with 1/4 rotation change of tuner in sequence)
Pascal observed: “Note the point of impact displacement [from shot to shot] tracks clearly along a sinusoide (sine wave curve).” This is indeed notable and significant! This shows how the tuner’s ability to change barrel harmonics can alter the position of the muzzle as each bullet exits, resulting in a higher or lower POI. Pascal sent his results to Carlito Gonzales in Argentina for analysis.
Pascal poses this question to readers: “Guess which three positions Carlito recommends to try?”
Editor’s Note: While this target sequence clearly shows how tuner position can alter bullet point of impact, this, by itself, does not tell us which tuner position(s) are best for accuracy. That will require further multi-shot group testing, involving careful experimentation with tuner position (and powder charge weights). But for those folks who doubt that a tuner can make a difference on a short, fat barrel, just take another look at the photos. The up/down changes are undeniable, and noteworthy in the wave pattern they follow.
Shooting Set-up and Test Conditions:
Pascal did this test at an outdoor range under very good conditions: “This was shot at my home range, outdoors, with four Smiley flags. The range is a narrow cut in high woods. Wind was consistent with readable flags. I started testing the tuner from 10 turns out and on to 15. I recently… found a sweet spot very close to the rearmost position of the tuner, so the rigidity provided by this super long tenon (just short of 70mm) was not a reason to overlook the recommended Bukys tuning procedure.”
This site is for and about accurate shooters. So today we feature the short-range group Benchrest game, where it’s all about shooting tiny groups in the ones and even “zeros”. Seeing the tiny groups 6 PPC aces produce, it’s easy to think the precision is all about the equipment. But there is a lot more involved. A talented human still has to watch the flags, run the gun properly, and tune his loads for the conditions. Here are some tips from one of the world’s best benchresters, Charles Huckeba.
Texan Charles Huckeba was the top individual shooter at the 2013 World Benchrest Championships (WBC) held near Sydney Australia in October 2013. In this video, 2013 WBC Two-Gun Overall winner Charles shoots a 1/8th MOA group at 200 yards — “a little bitty dot” as a fellow Team USA shooter observes. That’s impressive. If you can describe Huckeba’s style in a nutshell it would be “smooth, consistent, and rapid but not hurried”.
Charles also employed some unusual hardware. In the video, take a close look at the joystick on the Farley Coaxial front rest. There’s no knob at the end. In its place is a small, wood ammo caddy. Charles removed the standard knob from the handle of his Farley rest and replaced it with a home-made wood block that holds cartridges for the record target. The 10.5-lb Light Varmint rifle is chambered in 6PPC with a BAT Machine Action and a composite wood and carbon-fiber stock.
Watch Charles Huckeba Shoot 1/8 MOA, 200-yard group at World Benchrest Championships
Here is the actual 200-yard, 5-shot group Charles shot in the video. Photo (by Stuart Elliot) taken through the lens of Huckeba’s 50X March scope (reticle has 1/16th MOA Dot).
Analyzing the Fine Points — What Makes Huckeba So Good
Short-range benchrest shooter Boyd Allen saw some interesting things in Huckeba’s WBC performance, as captured on video. Boyd noticed Huckeba’s smooth gun-handling and efficient loading. But Boyd also spied some interesting equipment, including an innovative joystick “handle-caddy”.
1. Low Friction Bags — When Huckeba slid his rifle, there was very little apparent friction. The front bag features the new 3M material (ScotchLite) on the sliding surfaces. The rear Protektor bag has ears of the same low-friction material.
2. Pause Before Chambering — While he was watching the flags and deciding when to start firing, Charles kept his first round in the action, but out of the barrel’s chamber, probably so as not to heat the cartridge and change the round’s point of impact.
3. Ammo Caddy on Joystick Arm – Charles shoots a Right Bolt/Left Port action, so he pulls his rounds with his left hand. Note that Huckeba’s record rounds rest in a small, wood ammo caddy attached to the end of the joystick shaft. Look carefully, you’ll see the wood ammo block in place of the normal black ball at the end of the joystick. That allows Charles to pull shots with the absolute minimum of hand movement. Ingenious! Huckeba is very fast, with a great economy of motion. I believe that because his ammo was literally at hand, Charles was better able to keep his focus on aiming and the flags.
4. Smooth-Cycling BAT Action — Note how smoothly Huckeba’s action operates. When Charles lifts the bolt handle (to extract a round and cock the firing pin), this does not disturb the rifle. Likewise, as he closes the bolt, the gun doesn’t wobble. The smooth action allows Charles to hold point of aim even when shooting relatively quickly. Huckeba’s BAT action is chrome-moly steel. Some shooters believe this metal makes for a smoother action than stainless steel or aluminum.
5. Long-Wheelbase Stock — The wood and carbon fiber stock is light, long, and stiff. Yet, importantly, the stock is also well-damped. The longer-than-average stock length (with extended forearm) seems to help the gun track well without jumping or rocking. The longer forearm allows a longer “wheelbase”, effectively shifting the weight distribution rearward (less weight on the front, more weight on the rear). This places a greater share of the gun’s weight on the rear bag, as compared to a more conventional benchrest stock. Huckeba’s stock, built by Bob Scoville, is at the cutting edge of short-range benchrest design. Its light-weight balsa wood and carbon fiber construction provides a combination of stiffness and vibration damping that allows its relatively long fore-end to be fully utilized to increase the weight on the rear bag (always an issue with 10.5-pound rifles).
To learn more about this benchrest stock design, read the comments by stock-builder Bob Scoville in our PPC with Pedigree story in our Gun of the Week Archives. Bob observed:
“There is a lot more to the structure of the stocks than meets the eye. The carbon fiber skin with which I cover the stocks creates a light, tough exterior surface. However, this contributes very little to the overall performance of the stocks. The real strength and stiffness is the result of an internal beam utilizing balsa core/carbon fiber technology.
This type construction can be found in aircraft, race cars, powerboats, and sailboats. It is interesting to note, balsa has the highest strength to weight ratio of all woods and carbon fiber is one of the lowest stretch (modulus of elasticity) relative to weight of all materials. The marriage of these two materials is common in the high-performance world. Additionally, balsa is used commercially for vibration dampening and sound reduction.”
Video find by Boyd Allen. Video by Stuart Elliot of BRT Shooters Supply, Brisbane, Australia.
Watch this Video — It’s one of the best Custom Rifle Build Videos ever produced!
This video, produced for the folks at S&S Precision in Argyle, Texas, shows a full custom 6.5×47 Lapua bench rifle being crafted from start to finish. It is a fantastic video, one of the best benchrest gunsmithing videos you’ll find on YouTube. It shows every aspect of the job — action bedding, chambering, barrel-fitting, muzzle crowning, and stock finishing.
You’ll be amazed at the paint job on this rig — complete with flames and four playing cards: the 6, 5, 4, and 7 of spades. Everyone should take the time to watch this 13-minute video from start to finish, particularly if you are interested in stock painting or precision gunsmithing. And the video has a “happy ending”. This custom 6.5×47 proves to be a real tack-driver, shooting a 0.274″ three-shot group at 400 yards to win “small group” in its first fun match. NOTE: If you have a fast internet connection, we recommend you watch this video in 720p HD.
Every summer weekend, there are probably 400 or more club “fun matches” conducted around the country. One of the good things about these club shoots is that you don’t have to spend a fortune on equipment to have fun. But we’ve seen that many club shooters handicap themselves with a few common equipment oversights or lack of attention to detail while reloading. Here are SIX TIPS that can help you avoid these common mistakes, and build more accurate ammo for your club matches.
1. Align Front Rest and Rear Bags. We see many shooters whose rear bag is angled left or right relative to the bore axis. This can happen when you rush your set-up. But even if you set the gun up carefully, the rear bag can twist due to recoil or the way your arm contacts the bag. After every shot, make sure your rear bag is aligned properly (this is especially important for bag squeezers who may actually pull the bag out of alignment as they squeeze).
Forum member ArtB adds: “To align my front rest and rear bag with the target, I use an old golf club shaft. I run it from my front rest stop through a line that crosses over my speed screw and into the slot between the two ears. I stand behind that set-up and make sure I see a straight line pointing at the target. I also tape a spot on the golf shaft that indicates how far the back end of the rear bag should be placed from the front rest stop. If you don’t have a golf shaft, use a wood dowel.
2. Avoid Contact Interference. We see three common kinds of contact or mechanical interference that can really hurt accuracy. First, if your stock has front and/or rear sling swivels make sure these do NOT contact the front or rear bags at any point of the gun’s travel. When a sling swivel digs into the front bag that can cause a shot to pop high or low. To avoid this, reposition the rifle so the swivels don’t contact the bags or simply remove the swivels before your match. Second, watch out for the rear of the stock grip area. Make sure this is not resting on the bag as you fire and that it can’t come back to contact the bag during recoil. That lip or edge at the bottom of the grip can cause problems when it contacts the rear bag. Third, watch out for the stud or arm on the front rest that limits forward stock travel. With some rests this is high enough that it can actually contact the barrel. We encountered one shooter recently who was complaining about “vertical flyers” during his match. It turns out his barrel was actually hitting the front stop! With most front rests you can either lower the stop or twist the arm to the left or right so it won’t contact the barrel.
3. Weigh Your Charges — Every One. This may sound obvious, but many folks still rely on a powder measure. Yes we know that most short-range BR shooters throw their charges without weighing, but if you’re going to pre-load for a club match there is no reason NOT to weigh your charges. You may be surprised at how inconsistent your powder measure actually is. One of our testers was recently throwing H4198 charges from a Harrell’s measure for his 30BR. Each charge was then weighed twice with a Denver Instrument lab scale. Our tester found that thrown charges varied by up to 0.7 grains! And that’s with a premium measure.
4. Measure Your Loaded Ammo — After Bullet Seating. Even if you’ve checked your brass and bullets prior to assembling your ammo, we recommend that you weigh your loaded rounds and measure them from base of case to bullet ogive using a comparator. If you find a round that is “way off” in weight or more than .005″ off your intended base to ogive length, set it aside and use that round for a fouler. (Note: if the weight is off by more than 6 or 7 grains you may want to disassemble the round and check your powder charge.) With premium, pre-sorted bullets, we’ve found that we can keep 95% of loaded rounds within a range of .002″, measuring from base (of case) to ogive. Now, with some lots of bullets, you just can’t keep things within .002″, but you should still measure each loaded match round to ensure you don’t have some cases that are way too short or way too long.
5. Check Your Fasteners. Before a match you need to double-check your scope rings or iron sight mounts to ensure everything is tight. Likewise, you should check the tension on the screws/bolts that hold the action in place. Even on a low-recoiling rimfire rifle, action screws or scope rings can come loose during normal firing.
6. Make a Checklist and Pack the Night Before. Ever drive 50 miles to a match then discover you have the wrong ammo or that you forgot your bolt? Well, mistakes like that happen to the best of us. You can avoid these oversights (and reduce stress at matches) by making a checklist of all the stuff you need. Organize your firearms, range kit, ammo box, and shooting accessories the night before the match. And, like a good Boy Scout, “be prepared”. Bring a jacket and hat if it might be cold. If you have windflags, bring them (even if you’re not sure the rules allow them). Bring spare batteries, and it’s wise to bring a spare rifle and ammo for it. If you have just one gun, a simple mechanical breakdown (such as a broken firing pin) can ruin your whole weekend.
With the Berger Southwest Nationals (SWN) taking place this week in Phoenix, we are reprising this discussing of rear bag designs and fill levels. By “tuning” your rear bag you can reduce hop on shot-firing and help your rifle track better. All that can translate to better scores, particularly with large-caliber rifles.
Tuning Your Rear Sand Bags
Over the years, noted gunsmith and a Benchrest Hall-of-Fame inductee Thomas ‘Speedy’ Gonzalez has learned a few things about “tuning” rear sandbags for best performance. On his Facebook page, Speedy recently discussed how sand bag fill levels (hard vs. soft) can affect accuracy. Speedy says you don’t want to have both your front and rear sandbags filled up ultra-hard. One or the other bag needs to have some “give” to provide a shock-absorbing function (and prevent stock jump). And you want to tune your fill arrangements to match your shooting style. Free recoil shooters may need a different fill levels than bag squeezers (who a softer bag but harder ears).
SAND BAGS & HOW TO FILL THEMby Speedy Gonzalez
I was asked several times by competitors at the S.O.A. Matches and F-Class Nationals as to how I fill my sand bags for benchrest competition. Here is a copy of a reply I gave several years ago:
Back in the old days, Pat McMillan told me: “You can not have two bags filled so hard that you gun bounces on them in the process of firing round at your target, especially if you have a rig with a very flexible stock. The bags must be set up in a manner for them to absorb the initial shock of the firing pin moving forward and igniting the primer.
Then [they must] maintain their shape and absorb the second shock wave as well the rearward thrust and torque of the rifle. What happens to the rifle when this is not done? Well let me tell you. The rifles have a very bad tendency to jump and roll in the bags. This causes many of those wild, lost shots that one can’t explain.”
Here’s some Good General Advice for Bag Set-up:
1. You should not have TWO hard bags [i.e. both front AND rear] in your set-up.
2. Heavy sand magnifies these phenomena.
3. If you are a bag squeezer, pack ears hard and leave bag pliable enough to squeeze for the movement required. You may pack front bag as hard as rules permit.
4. Free recoil shooters pack both bags firm, but not so hard as to allow stock jump. Especially if you have a stock with a very flexible forearm.
5. We use play-ground sand, also know as silica sand. I sift mine to get any large impurities out then mix it with 25% to 50% with Harts parakeet gravel to the desired hardness that I am looking for. The bird gravel keeps the sand from packing itself into that solid as a brick state.
Speaking of bricks — another thing that happens when shooters employ that heavy zircon sand is the ears form a low spot under them from recoil and then tend to rock back and forth with the rifle causing many low shots to crop up. Edgewood makes an Edgewood/Speedy rear bag specially reinforced under the ears to eliminate this scenario.
General Thoughts about Bag Construction and Ear Materials
I do not like the solid double-stitched leather bottoms. While this seems like a good idea, I see more shooters have problems because of them. They tend to slide around the bench and or slide with the rifle on recoil. The standard Protektor with Cordura rabbit ears and an Otto ring bag with a Cordura front would be what I would suggest to the new shooter or one of the Edgewood / Speedy rear bags, these mimic the “Donut” and feature a ring of leather around the bottom circumference that keep the bottom from rocking on the bench or ground[.]
One last note –If you use the Cordura bags, keep them sprayed with a good silicon spray or “Rain-Ex”. This keeps them from getting sticky. — Speedy