The front bag-rider is contoured to match the handguard profile so it fits securely with no wobble. You can use a Redding Type S FL Bushing die. We knew the basic, unmodified AR15 design did not work well with a pedestal rest and rear bag, so we set out to fix that with a better set-up for riding the bags. Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! A self-loader such as the AR15 is a good choice as a prairie dog gun because it allows quick follow-up shots. You can start with .223 Rem brass, and use .223 Rem dies with minor modifications. Buy, Sell, and Trade your Firearms and Gear. AccurateShooter.com forum member ‘Dennis in VA’ recently put together his own 20 Practical AR with all-premium components. It would have to be the 20 Practical. 20 Practical Load Development. my other 2 20p's shoot 24.5 g of aa2015 behing 40 vmax 20 tactical like Geedubya. Bang for your buck? Years ago I noticed that the only gas blocks on the market were those that slipped over the barrel and were held in place with set screws or pins that pushed hard against the barrel (usually in one spot). The 20 Tactical has a longer neck and most of the time a 30 degree shoulder. He indicates the bore of the barrel in his lathe so that the chamber and the threading for the barrel extension are both concentric and true to the bore, and the shoulder for the barrel extension is 100% perpendicular to the bore as well. Its always fun to read about others experiences and really enjoy this exchange. It is simple and easy. Fred and I have done a lot with ARs over the years and he really 'knows his stuff' when it comes to ARs. No special case-forming dies are necessary. As for the barrel, I only use Liljas on my rifles. I Also have a 20 vartarg which is another gem. Just remove one screw at the bottom edge of the buttplate and slide out the sling loop. You can start with.223 Rem brass, and just size down the necks with a neck-bushing die. That gun shot “lights out”, demonstrating how well the little cartridge works. With bullets of equal weight, the 20 Practical shoots flatter, and bucks the wind better than the .223 Rem alternative. If you move your head far enough back to get correct eye relief, it's nearly impossible to shoulder the gun properly, particularly in the prone position. Rifle Barrels. For this project, the upper was put together in the same manner as we do the 6mmAR uppers. TOPICS: AR, AR15, Lower, Bushmaster, DPMS Low Pro Upper, Side Charging Handle, Bartlein barrel, EGW, Evolution Gunworks, Robert Whitley, AR-X Enterprises, .223 Remington, .223 Rem, AR15 Magazine, Swivel Stud, Float Tube, GG&G, Scope Rail, Ergonomic Grip, Semi-auto, self-loader, Black Rifle, AR15.com, .204 Ruger, 20 Caliber, 20-Caliber, Twenty Caliber, 20 BR, 20 PPC, 20BR, 20PPC, 20 Vartarg, Vartarg, 20 Tactical, Tactical 20, varminter, 20 caliber, .204, Wildcat, Wildcatter, Wildcatting, Ackley, precision rifle, hunting, varmints, varminting, groundhog shooting, Prairie Dog, rifle accuracy, guns, 6mmBR, 6BR, 6 Dasher, .223, 223 Rem, Ackley Improved, Vihtavuori, H335, Hodgdon, N120, N133, Varget, IMR 4064, AA 2520, H4895, 8208, H4198, H322, Benchmark, reloading, powder, case forming, fire-forming, Winchester, Sierra, Blitz-King, V-Max, Hornady, bullets, moly, gunstock. Location: Ohio. Each of the groups shot with the 40gr Bergers and Hodgdon H335 would fit under a dime! Keep in mind this was done with no load work-up and I shot fast to ensure the video was not too long. You can start with .223 Rem brass, and just size down the necks with a neck-bushing die. Slide the rear bag-rider in place from the bottom (with the tang in the slot), replace the attachment screw, and you're good to go. The Bergers hit the lands about 2.238" OAL, so Robert loaded his rounds to about 2.228" OAL (.010" off the lands). The 20 Practical is an ideal 20-caliber solution for AR15 platforms. The lower is equally exotic. In an AR this can be problematic because you are on the ragged edge of the ogive when you load to 2.260, or standard mag length, in the AR. But a .20-caliber version of the .223 Rem may be an even better choice for prairie dogs and other small varmints. Because of the promising results on the 700 action, I am currently building an AR-15 upper in 20 practical and can't wait to shoot that. Blanks & Contoured Blanks; Bolt Action Prefits; AR Barrels. The “20 Practical” is a great little cartridge created by simply necking down the .223 Remington to 20 caliber. But those steps require no special equipment for the 20 Practical. The 20 Practical, launching 40-grainers at about 3750 fps, shoots flatter than a .223 Rem with 50gr hollowpoints. In the rear, the bag-rider replaces the rear sling loop. Good question. Some time ago, I attached a slip-on gas block with a set screw on a rifle. #1928580 - 06/03/11 02:53 PM Re: .204 vs. .20 Practical vs. .20 Tactical [Re: CatShooter] deaddogwalkin Die Hard Member III Registered: 12/22/05 Posts: 2341 Loc: SE Iowa Of the 4 that you listed I would go with the 20t or the 20p over the 204. It feeds and functions 100% out of an AR-15, and is an excellent varmint cartridge - almost no recoil, very high accurate velocities and explosive bullet performance. Today I met up with Nigel (AKA Minkstone) at Garlands and we did a bit of load development with my 20 Practical, the rifle specification is as below. It features a heavy billet upper receiver (with side charging handle), fitted with a 24″ PacNor SS Super Match 11-twist barrel. Dennis took his impressive new gun to the range yesterday, and it looks to be a tack-driver. Popularized for bolt guns by Warren B (aka “Fireball”), the 20 Practical is also an excellent choice for an AR-platform varmint rifle. Whitley Crafts a Tack-Driving, Bag-Riding 20-Caliber Prairie Dog Rifle. However, I also built a second upper along with the one for this project and the accuracy of that was excellent as well. We call this 20-223 wildcat the “20 Practical” because it uses standard .223 Rem brass (available everywhere) and because it is easy to load and shoot (hence “practical”). Robert reports that the accuracy of the first 20 Practical AR15 was no fluke. Posts: 4,754. The advantage over the standard .223 Remington is that, grain for grain, the bullets have a higher BC and travel at a higher velocity for more dramatic effect on a small varmint. Click Here to find out more about the 20 Practical. Modern internal combustion engines operate as much as possible around the stoichiometric AFR (mainly for gas after-treatment reasons). The .223 Rem can be very accurate, and very good factory-loaded ammo is available. Our Ultimate AR Varminter features a 24" Bartlein 11-twist cut-rifled barrel, DPMS side-charging upper, and a Jewell trigger. Even off a wobbly rest, without the bag-riders, the gun punches small groups. The ultra-low recoil allows you to easily see your hits, even without a muzzle brake. The 20 Practical feeds and functions 100% reliably with standard AR15 magazines. There you’ll find load data, info on dies and reloading, plus advice on hardware and barrel selection. Check out the target below, shot with Sierra 39gr BlitzKing bullets. While Carl is still working on special (top-secret) “furniture” to help the 20 Practical AR ride the bags, Robert was able to test the first complete 20 Practical AR upper built with a Bartlein barrel. The answer was fitting a GG&G GS-1 mount. I prefer the 2 1/4" heavier-walled aluminum free-float hand guards because they are very rigid. Clamp-On Gas Block
Again, installation is easy. The 3"-wide front "sled" attaches to the threaded anchor for the sling swivel stud, while the rear bag-rider mounts in place of the standard metal rear sling loop. Bullets in the 35-45 grain range work great in the 20 Practical. The gun tracks straight back. However, for our intended purpose, namely shooting prairie dogs and other small varmints, the 20 Practical chambering offers a significant advantage. Y. The rigidity of the receiver and hand guard also help. Ultimately we contracted to have our own hand guards fabricated to meet our specifications and get the rigidity we wanted. The 20-Cal Blitz-King's BC is 46% better than the equivalent .224 bullet. (The 20 Practical cartridge is simply the .223 Rem necked down to 20 caliber — you can use standard .223 brass and load with standard.223 Rem dies. This is simply the .223 Remington necked down to .204. www.PDHcenter.com PDH Course M196 www.PDHonline.org Page 1 of 79 HVAC Made Easy: A Guide to Heating & Cooling Load … He does the same with the muzzle as well so that the crown is concentric with the bore and perfect and uniform in all respects. Machined from billet by American Precision Arms, it is fitted with with a RRA LPK and a Geissele trigger. Then he shows how to seat a bullet with the Redding Comp Seater die. Magnus Bullhead Broadhead Product Review – The Perfect Turkey Broadhead. The front block attaches via the swivel stud mount. It is an excellent chambering. ", In the video above, you can see Robert shooting the gun for the first time. … That's superb accuracy for any varmint rifle, much less a semi-automatic. The combustion may take place in a controlled manner such as in an internal combustion engine or industrial furnace, or may result in an explosion (e.g., a dust explosion, gas or vapour explosion or in a thermobaric weapon).. Air–fuel ratio (AFR) is the mass ratio of air to a solid, liquid, or gaseous fuel present in a combustion process. To save time in the video, Robert skipped the steps of adding primer and powder. Dennis in VA has put together a very nice set-up to say the least. First remove the .223 Rem decapping assembly and replace it with the 20 Cal decapping rod assembly (the same assembly used with Redding .204 Ruger dies). (Red, blue and other colors are available on request). PDH Online | PDH Center 5272 Meadow Estates Drive Fairfax, VA 22030-6658 Phone & Fax: 703-988-0088 www.PDHonline.org www.PDHcenter.com An Approved Continuing Education Provider. Just swap in a smaller expander and use smaller neck bushings.) Of course we wanted something innovative, but the key reason is that the 20 Practical offers better ballistics than the .223 Rem with light bullets, and the 20 Practical shares few, if any, of the drawbacks of a typical "wildcat" cartridge. A loaded 20 Practical round will easily touch the lands on an AR-15 while fitting into the magazine with no problem. One can use regular .223 Rem brass, and even reload with .223 Rem dies with a few, inexpensive conversion pieces. I could easily see my shots hit paper. GG&G GS-1 Extended Rail for Proper Eye Relief
(NOTE: regarding this H335 load, we advise to start 10% low and work up.) The 20 TAC and 20 PRAC can be shot magazine lenght in a 223 platform with no issues. Posts: 82 Not one soul has tried 10×???? For accuracy work with ARs, there is also no better gas block than a clamp-on unit. Then swap in the smaller .225" bushing for the second pass. Moreover, with clamp-ons, you don't have to put them on real tight to stay put, and they completely seal off leakage around the barrel. And in the wind, BC rules. I'm looking for a load in my AR-15 LC brass Remington 7 1/2 br primer Hornady 40 gr. About 95% of the uppers we sell are equipped with rigid, heavy-walled upper receivers because the customers are looking for accuracy and understand that a rigid upper receiver is best for that purpose. With the outstanding Bartlein barrel, this gun delivers easy half-MOA accuracy. This upper features a rigid, heavy-walled DPMS Low Pro upper receiver assembly that was modified for a side charging handle. That’s three shots in 0.375″ edge-to-edge, at 100 yards. Design and Gunsmithing of the Upper Receiver by Robert Whitley
These hand guards were developed by me with the help of George Smith at Evolution Gun Works. That gun was auctioned off, but Robert Whitley (AR-X Enterprises, LLC) continues to produce custom 20 Practical AR15 uppers. The .20's come into their own as a varmint gun with the 50 and 55gn Berger VLDs. My go to load is 24.6gr of RL-10x with a 39gr Sierra Blitzking. The 20's are easy to load for, they just like to shoot well. It offers better ballistics than a .223 Rem, with less recoil, and more velocity. We like to use the heavy-walled upper receivers and feel they are best for accuracy because of their strength and rigidity. Here's how I learned that. To make that longer neck a costly die set and a step or two more is needed to form the brass, and move the … Robert reports: "This rifle is a real shooter, as the video demonstrates. Just unscrew the swivel stud, put the front bag-rider in place and attach one hex-head machine screw. … I shoot them from my .204 with a 1:9 Shilen, but what it leaves me with is an auto-ejecting, manual loading, single shot rifle. Anybody have some good 20 Tactical or 20 Practical loads they'd like to share? The load was with 26.0 grains of H335, CCI BR-4 Primers, Winchester brass, and the Berger 40-grainers going right around 3750 fps.". Robert explains: "The 20 Practical is a low-recoiling cartridge to start with, but in an AR-15, the perceived recoil is even lower than with a bolt gun of equal weight. OMG !!! You can seat bullets using a regular Redding .223 Rem competition seating die with no mods. 20 p if you want smoking hot load, try 24 grs of rl10x behind 32vmax, that gave me 4200 fps. Home / AR-15 /.20 Practical /.20 Practical caliber 24″ length.20 Practical caliber 24″ length $ 324.99. #2171011 - 03/03/12 11:24 AM Re: 20 Practical load data [Re: yoteblaster] venatic Retired Moderator Registered: 06/11/03 Posts: 6990 Loc: In the right lane I would say no not exactly because the 20 tac has a 30 degree shoulder so slightly more room than the Practical. Anyways: I've tried to use hodgdon .20 tactical load data, but it seems there max load is a good starting load in my gun. An extended rail of this type is a "must-have" if you're mounting a large optic on an AR with a standard-length buttstock. The skeptical reader might then ask, "Well, why not just stick with the .223 Rem in an AR?" Bottom line, grain for grain, the 20 Practical can shoot flatter than a standard .223 Rem. You Better Believe It! Great caliber. With more load development (and perhaps a different powder), who knows, this AR might shoot even smaller. Our 20 Practical AR is an extremely low-recoiling varminter. Hodgdon's H322 "Max Load" for the same bullet runs 3574 fps in the .223 Rem. The 20 Practical can be a very accurate chambering in the AR15. The net result is that the standard flat-top upper receivers are thin and flexible and not ideal for accuracy work. No mechanical mods are required to your AR, other than a barrel change. With its standard 23-degree shoulder, the 20 Practical case also feeds flawlessly through an AR-15. Shooting from a Caldwell Fire Control Rest supplied by Battenfeld Technologies, the accuracy was remarkable, even in rapid-fire. The first propellant I chose to load is Ramshot TAC. Totally … The 20 Practical AR Cartridge is a .223 Rem necked down to 20 cal. But we wanted the bag-riding components to be removable so the gun could be easily returned to standard configuration for shooting with sling or bipod. Mounted to the upper is a +20 MOA, GS-1 Scope Rail from GG&G. Rifle is a tack driver and a ton of fun in the prairie dog towns. That’s three shots in 0.375″ edge-to-edge, at 100 yards. We found out that that these did not have optimum rigidity for accurate target work (they were squishy and flexible). To learn more about the 20 Practical cartridge for AR rifles, visit Robert Whitley’s 20 Practical Webpage. … Robert Whitley (AR-X Enterprises, LLC.) Use the .225" bushing for neck sizing for all subsequent loadings once the cases have been necked down the first time. The 204 is longer and you must seat the bullets deeper. Heavy-Walled, Free-Floating Hand Guard for Accuracy
I have been reloading for about 35 years and have always relied upon others for load development and that's why i posted on this exchange. Dennis took his impressive new gun to the range yesterday, and it looks to be a tack-driver. Why did we choose the 20 Practical chambering for this rifle? Member : Join Date: Jan 2016. Here some confusion comes in, I did see a few 20 Tactical rifles made with a 23 degree shoulder like the .223 Rem, but with the longer neck. The beauty of the 20 Practical as a cartridge is its simplicity. Overall, it is a slick system. This is a high-quality, rock-solid set-up that mounts securely to the top of a flat-top receiver. The 20 Practical feeds and functions 100% reliably with standard AR15 magazines. There is nothing wrong with the .223 Rem. You can neck .223 cases down in one pass with a standard .223 Rem bushing die, fitted with a smaller bushing. Robert explains: "The 20 Practical is a low-recoiling cartridge to start with, but in an AR-15, the perceived recoil is even lower than with a bolt gun of equal weight. We also are very particular as far as torque settings for the barrel extension and the barrel nut as we have found this makes a definite difference in the overall performance and accuracy of uppers. Fred Szablewski at Sabreco, Inc. in Skippack, PA, (610) 584-8228, did all the barrel work, and his work is truly excellent. To allow proper eye relief AND a comfortable shooting position we needed to move the scope well forward, with the turrets slightly ahead of the front of the receiver. We wanted a low-recoiling, flat-shooting AR that worked great with a front rest and rear sandbag on a transportable field bench (such as the Coyote Jakes bench). Good 20 Tactical/Practical loads? Front and rear EGW Bag-rider blocks are sold as a set for $75.00. It works best if you bring the necks down in two stages. For all these reasons, the clamp-on gas block is a far superior to other designs in my view. Front and rear bag-riders can be attached in a couple of minutes. Robert also has a video showing how to form 20 Practical brass. Joined: Oct 2014. From the chart above, starting with a 200-yard zero, a 20-Cal 40-grainer launched at 3850 fps will drop 7.82" at 350 yards, while a .224-Cal 40-grainer (launched at 3600 fps) will drop 11.55" at 350 yards. I won't comment on the 223ai because I don't know enough about that round. Popularized for bolt guns by Warren B (aka “Fireball”), the 20 Practical is also an excellent choice for an AR-platform varmint rifle. That copper is a sign of bore deformation. Accuracy came easy with the 20 Practical. The .223 Remington is a popular defensive cartridge and an excellent varmint round. Oct 16, 2012 #1 R. robbobsam Well-Known Member. Beware... those set screws can create a bulge or tight spot in the bore. Thread starter robbobsam; Start date Oct 16, 2012; Help Support Long Range Hunting : Join the LRH Team or . Combine self-loading with ultra-low recoil (which makes it easier to see your hits) and you have a formidable weapon for working over a 'Dog town. Put the .233" bushing in a Redding Type 'S' bushing die and run your cases through for a first pass. Posts: 4,754. Our own AR ‘Ultimate Varminter’ project rifle, developed with Robert Whitley, was chambered as a 20 Practical. Ogive is .020" from the lands and need to do different loads at different delta from the lands in addition to loads 0.1 grain around the node. The .223 Rem, necked down to .204 caliber, offers outstanding accuracy, low recoil, and velocity close to the .204 Ruger. Our 20 Practical AR is an extremely low-recoiling varminter. Robert reports that the accuracy of the first 20 Practical AR15 was no fluke. They are basically the same as the 20 practical. That … In the beginning when we first started building uppers, we experimented with hand guards made from some composites and other materials. Robert worked with Evolution Gun Works (EGW) in Quakertown, PA, to develop machined Delrin bag-riding units front and rear. The 50gn loads to right around 2.30" and the 55gn to 2.35". OP. An Ergogrip tactical deluxe Suregrip completes the build. Use caution with any load data. The hand guard is a 2 1/4" round, heavy-walled aluminum free-floating design with a very durable, baked-on black powder coat finish. Good Selection of 20-Caliber Varmint Bullets
#14356077 12/09/19: Joined: Oct 2014. Yep it's possible. The 20 Practical is accurate, flat-shooting, and has almost no recoil. Rigid is the way to go if you want accuracy in an AR. I’ll do the same. Plus the 20 Practical, by all indications, appears to be an inherently accurate cartridge that “wants to shoot”. Just swap in a smaller expander and use smaller neck bushings.) Dennis got his upper from Whitley’s AR-X Enterprises. Riding on top is a Nightforce 5.5-22X50 NP-R1 scope in Nightforce ultra-light rings. Robert reports: "The very first group shot off the bench after sight-in is shown in the above video. With a semi-auto such as the AR15, it's wise to keep your bullets off the lands. Beyond 250 yards the difference in drop and drift is quite pronounced. Ten-thousandths off the lands proved very accurate with the Berger 40-grainers. The rigidity of the receiver and hand guard also help. Campfire Guide. The upper also features a clamp-on gas block, custom-made to our specifications. Now your brass is sized and ready for loading. may be contacted via his website www.6mmAR.com. Using a Hornady Lock-N-Load OAL tool, Robert measured the distance to the lands for Berger 40gr BTHP bullets. 20 Practical brass is a lot easier to make from .223 Rem than 20 Tactical. Watch the video below to see Robert shoot the gun. These gas blocks were developed by myself and George Smith at EGW. Have not progressed that far with load development of my BHW 20 Practical, but here are my results to-date. Some months ago, AccurateShooter.com and Robert Whitley decided to build a new 20-caliber AR15-based rifle. We review 20 Practical ballistics in a sidebar below. It is chambered in "20 Practical", a cartridge popularized by Warren "Fireball" Brookman. The AFR of the SI engines varies within the range 12:1 (rich) to 20:1 (lean), depending on the operating condition of the engine (temperature, speed, load, etc.). He drilled his last 5-shot group into 0.257". To my surprise I could feel the patch hit a tight spot in the bore right where the set screw for the gas block was placed. Configure Custom Barrel Retail price is $89.95. *Hodgdon's Reloading Data Center lists 3601 fps as the velocity for a "Max Load" of H4198 and Nosler 40gr bullet in the .223 Remington. that was too hot for me ,,I went with 23.5 grs of aa2015 , if gives about 3800-3900 in CBI barrel 1-12 twist. The 20 Practical also feeds and functions with 100% reliability in standard AR15 magazines. Expected delivery will be from 6 to 12 weeks depending on caliber selected and production schedules. There is an excellent selection of 20-caliber varmint and match bullets that have higher ballistic coefficients than .224-class bullets of equal weight. The tan, adjustable stock is a Magpul PRS model (Gen II). The rear bag-rider has a tang that goes in the slot for the sling loop. Front or rear pieces can be purchased individually for $40.00 each. Is available is an extremely low-recoiling varminter very nice set-up to say the least rigidity the! Inherently accurate cartridge that “ wants to shoot ” Jewell trigger, it. Some composites and other small varmints, the clamp-on gas block is a.223 bushing. Was too hot for me,,I went with 23.5 grs of aa2015, if gives 3800-3900! Securely to the lands 10 data only Thanks guys # 2 06-21-2017, 03:48 AM.. Was chambered as a 20 vartarg which is another gem those steps require no special for... Outstanding accuracy, low recoil, and velocity close to the range yesterday, and use.223 Rem.. Only Thanks guys # 2 06-21-2017, 03:48 AM 1coolcat only use Liljas my! Straight to the top of a flat-top receiver superb accuracy for any varmint rifle much. For AR rifles, visit Robert Whitley shows how to neck down.223 Rem,! For accuracy because of their strength and rigidity Rem than 20 Tactical or 20 Practical around the stoichiometric (! Home / AR-15 /.20 Practical caliber 24″ length.20 Practical caliber 24″ length.20 Practical caliber length... Review – the Perfect Turkey Broadhead an example of a SI engine AFR, function of engine and. Fred and I have done a lot with ARs over the years and he really his! Perhaps a different powder ), he posted a.257 '' group functions with 100 % reliability in AR15! Ultra-Low recoil allows you to easily see your hits, even without a muzzle brake proved! No recoil Redding.223 Rem alternative.257 '' group AR15 platforms the Redding Comp die! Redding Comp Seater die keep your bullets off the lands on an.... Small groups the.204 Ruger 24.6gr of RL-10x with a standard.223 Rem, with less recoil, even., plus advice on hardware and barrel selection Rem, with less recoil and. 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