Q: During the Nationals, at the last minute you switched guns. Joel 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. This design versatility is one reason I recommend Master Class stocks. Note the 5-wide fore-end which is not legal for F-Class. Best powders are: Varget, H4895, and Reloder 15. This not only saves barrel wear, but it saves you trips to the range for the purpose of fire-forming. the 284 really needs a mid length or long action FURMAN Well-Known Member Tuning Loads for the .284 Win Improved Cartridges Success: 2910 FPS with Ten-Shot ES of 7 and SD of 3 Henry: The sport offers good people and a real challenge. The case issues seem to be with previously softer batches of cases. The extra boiler room is enough to drive the 180s at 2900-2950 fps with H4831sc, with long barrels. In this sport, you can excel even in your 60s, 70s and beyond. Once I get something that works well at 600 yards I go back in work around that by 0.1 grains. I agree with your fireforming load. .284 Winchester (using Sierra bullets) | Load Data Article I predominantly shoot and adjust my aim based on mirage. If you look at a .300 WSM and a 6mm Dasher side by side, they appear almost identical in geometry the .300 WSM looks like an super-sized Dasher. Henry: At the Nationals, I used my 17-lb Light Gun for both Light and Heavy Class. The .284 Win gives better barrel life with only giving up a few inches to the 7mmRSAUM. I use a bore guide when anything goes down the barrel. The cost of reloading the .284 Win is roughly $.07 more per round than that of the 6.5-284. I was sold! We started with all white on the stock and came up with the idea of an American Flag on the buttstock. In features a super-low profile carbon composite stock. After trying other solvents, I have gone back to Wipe-outs Carb-Out and Patch-Out products. Ray keeps Jewell triggers in stock so the only piece left to acquire was the scope. You dont want to chuck out brass that costs a buck a case (or more)! Bolt timing, ejection, and feeding is going to be messed up. I will occasionally mess with the tuner and tighten things up if possible. To start this project, I contacted Ray Bowman of Precision Rifle & Tool, PrecisionRifleSales.com. The extra boiler room is enough to drive the 180s at 2900-2950 fps with 30-32 barrels using H4831sc, Vihtavuori N560, or Alliant Reloder 16. Also, most custom die makers want you to send them two or three cases, each fire-formed three times. We loaded 53.0 grains of Hodgdon H4831sc and shot one round, cleaned, shot three rounds, cleaned, then shot 10 rounds and cleaned. This rifle project began several years ago. I start 0.6 grains lower than my last charge that worked. Brux Barrels is not the only company that produces very accurate cut-rifled barrels. How important is practice, and what do you do during a typical practice session? Henry: I had planned to use my Light and Heavy Dashers, but after placing the Dasher on the ready line, decided to switch to the .284 Shehane. Ian Klemms winning .308 Win featured a Kelbly Panda action, 30 Bartline 1:10-twist barrel, and McMillan X-IT left-hand stock. Charles Ballard always used eye and ear protection. Do not go for the hottest loads, which just reduces brass life. The barrel is a 32 Broughton 5C. The 284 Shehane is amazing, very forgiving and not temperamental. Many championships have been won, and many records set with those two bullets in the .308 Win. This optic is ultra clear, reasonably lightweight (28 oz. (For short-range benchrest, I was shooting a Bob Scoville carbon stock and Terry Leonard laminate). After trying Federal 210m primers, CCI BR-2 primers, light tension, heavy tension, jamming, jumping, we settled on 56.0+ grains of H4831sc with CCI BR-2 primers. Bryans rifle is shown below: I recommend chambers throated for the 185/200 grain projectiles over the 215/230 grain bullets. This barrel has 2200 rounds through it. Pretty much ALL of them told me that if they had it to do all over again, they WOULD NOT go with the Shehane and, instead, stick with the stock 284 Winchester! Then give Darrell Jones at DJs Brass a call at 205-461-4680. Q: What are the advantages of your stocks 5-wide fore-end and 3-wide rear plate? New .300 WSM F-Class rifle, with stock finished by Forum member Cigar Cop. ], Conclusion (and Other Options) In this 15-55X NF model, I like the DDR-2 reticle best, because fine cross hairs (FCH) are hard to see in heavy mirage. Our friend Erik Cortina notes that the .284 Shehane has a velocity edge over the straight .284 Win because it holds more powder: The Shehane has more capacity than the .284 Winchester. Neck-turning is an additional $0.60 (sixty cents) per case (or $0.75 for magnums) plus actual return shipping. Lower center of gravity equals less torque, and that is very important when shooting heavy bullets in fast twist barrels. Above is a nice field rifle built up by a father for his daughter. But in reality, on average, the .223 Rem, regardless of what powder/bullet combo is used, cannot compete with the .308 Win. [This] caliber has awesome accuracy. After that I play a little with seating depth and look for a change. My groups were respectable: a four-group, 3.055 Agg. However, to REALLY make a difference, you would need to get a cartridge capable of launching those 180's at a minimum of 3050+! Ian Klemm shot great to win the F-TR National Championship. Dealer Locator. Berger 190gr HT @ CBTO of 2.390, Lapua 6.5-284 necked up to 7mm, VV N165, Federal GM210M & CCI . 284 Shehane Mountain Rifle - Precision Defence Industries | PDI For starters, a .300 WSM is certainly capable of winning mid-range matches but it is not ideal. And F-Class guys if youre shooting a .284 Win-based case in F-Open you should definitely read Henrys precision reloading advice. Team member Jay Christopherson praised his team-mates and also gave credit to his rivals: Team Grizzly was outstanding for the LR Open Gold. Enjoy this trip back in time to when the .284 Win was the new kid on the block. But, the added recoil of the .284, even with front and rear rests aligned, took me off target. Share the post "Henrys Hammer State-of-the-Art .284 Shehane for 1K BR". This was the first five rounds through it after I cleaned it after the last match. In fact, this impressive sub-quarter MOA group was shot while fire-forming with a very well-worn barrel! The big bore shooters believe a heavier bullet flies better in unpredictable wind conditions. Amazing..!! Hydro-Forming News .284 Shehane, 6 PPC, 6 BRA, 6 Dasher and More Forum Member JimmyMac posted: Picked up my new 6 PPC today. Jay Cutright chambers my barrels. The barrel is a Blake Machine 1:8-twist finished at 32 inches. Here is why: You have to shoot a 30 Cal Magnum with a 240gr bullet to equal the performance of most 7mm chamberings with the 180 Berger VLD. Custom-made dies should size the case just right, but sometimes the dies internal dimensions are slightly off, and this leads to problem number two: dies sizing too much (or even worse) too little. That enhancement makes a BIG difference. Get some good equipment and eliminate having issues that can be caused by budget builds. In fact, this impressive sub-quarter MOA group was shot while fire-forming with a very well-worn barrel! I have used the same brass for years. var _gaq = _gaq || []; Forum member Grimstod posted this nice 6BRX in a scenic setting: Bill Goad at Premier Accuracy crated this fantastic 6BRX. Lets just say it didnt go as planned. Another significant improvement is that the toe of the stock is flat and parallel to the forearm. I use Lapua brass (6.5-284 necked-up), CCI BR-2 primers, Hodgdon H4350 powder, and Berger 184gr bullets. Choices for Mid-Range in Tougher Conditions: I have high hopes of it being an great gun. NOTE: Darrell offers Free Annealing with hydro-forming services, which starts at $60 per 100 cases. I quit cleaning every relay after reading Mr. Tierneys article, but I would still clean on Saturday night after I got home. In this game, we older guys can definitely compete on a par with younger shooters. I figured if I get it up to 2935-2950 fps that will be a point or two saved in a several day match. WHIDSIZSN284SHE Product Manufacturer: Whidden Gunworks Whidden Gunworks Product Description: For precise, consistent OAL handloads, the internals of Whidden's sizing die are designed to keep your rounds . Its low recoil along with its super grouping ability and good ballistics make it my number one choice for Mid-Range. The standard way to fireform for the 284 Shehane is to load ammo with 54gr H4831SC (a standard load for the parent cartridge) and a 180gr Berger Hybrid seated into the lands and go shoot a match or at the range. We thank Joel for this smart suggestion. After my first string this load started hammering. On the following Monday, we went back to the test bench and chrono. However, by blowing the sidewalls out 0.010, the .284 Shehane picks up about 3.3 grains of extra case capacity. This barrel has 2200 rounds through it. He is also doing a ton of fire-forming for the 100/200 benchrest crowd, hydro-forming 220 Russian into 6 PPC. My 6.5-284 barrel went south at 900 rounds. 284 Winchester Load Data - (Archived) You Better Believe It". Share the post "Sunday GunDay: Back-to-Back Championship Winning .284 Win". All hydro-formed cases are annealed at no extra charge after the forming process. The variable power and unobstructed DD-1 reticle of the NF were deciding factors. If I feel there is a constant condition, I will click for the wind. More speed, less pressure? Gun builder Ryan Pierce of Piercision Rifles explains: Heres a 5-shot 0.191 group at 100 yards with my .284 Shehane fire-forming loads. Housed in a polished, stainless BAT trigger guard is a Jewel trigger set at 5 ounces. Do you tune the barrel to the load? After sizing, the case mouths are cleaned with a spinning bronze brush. The only goal I have is to obtain the lowest ES and SD I possibly can. Would love to read more about the Shehane, as apparently Sabatti has three factory rifles (Evo, TLD and STR Sport) to offer in this cartridge: https://www.sabatti.it/wp-content/uploads/2020/03/Catalogo2020En.pdf. As falconpilot says work up to these loads and enjoy falconpilot Silver $$ Contributor Aug 29, 2009 #7 After hydro-forming, Darrell can also neck-turn the case for an additional charge (call for combined quote). This prize rifle features all top-of-the-line components: Borden BRMXD Action, Cerus multi-laminate stock with forearm extension, R.A.D. With availability of useful bullets ranging from 85 grains to 160 grains, the 6.5-284 has a lot to offer varminters, big-game hunters and long-range target shooters. Fellow .284 Shehane shooter Erik Cortina notes that the .284 Shehane has a velocity edge over the straight .284 Win because it holds more powder: The Shehane has more capacity than the .284 Winchester. That enhancement makes a BIG difference. BC rules in the wind. How does this improve rifle performance and how do you set the tune? My rifle is chambered in .284 Shehane. I shot a 200-7X with no elevation change on my last string. The straight .284 Win is an excellent cartridge, quite capable of winning F-class matches. The Verge - kgo.lesthetiquecusago.it For more info, contact Bill Shehane at (704) 824-7511, or visit his website, www.ScopeUsOut.com. [Editors Note: Jerry Tierney is no longer with us. However, the challenge in shooting this rifle was recoil management. Velocities vary between barrels approx 2850 to 2880. I have shot both, and prefer cut-rifled barrels. This insures the gun returns to the same spot after recoil. 284 Shehane | Long Range Hunting Forum Why 284 Win dominate, why not 284 Shehane? | Shooters' Forum I considered the Leupold competition scopes but ultimately decided on the Nightforce BR. This cleaning and annealing process is included in the $0.60 (sixty cents) per case price thats all part of the Hydro-forming service. For F-TR you can shoot either the .223 Rem or .308 Win, but you have many load options. At this point the barrel had 439 rounds through it. Note also the tuner on the barrel. Shooters may experiment with either shooting style to find what suits them best. Last year I shot a 3.348 10-shot group at 1000 with my .284 Win Heavy Gun fitted with a Time Precision Tuner. I found that the 300 WSMs vertical really tightened up after about 50 rounds. as is and can be made as light as 3lbs. The action is from the first rifle I purchased with my own money 21 years ago (700VSS). The rifle now sports a 24 Brux barrel chambered in 6mm Creedmoor, with aftermarket PT&G Bolt and DBM metal. Im getting 2930-2950 fps with spreads in the 3-5 fps range. Since I have only reloaded for hunting or magazine fed rifles I was not familiar with proper seating to allow land engagement of the bullets for 1000-yard accuracy. The 6.5-284 wins its share of matches, and is a true tack-driver when tuned right. 0. This article will focus on proven choices, currently used by the top F-Class shooters in the world. These steps are repeated until the bore is spotless. We had three shooters and each rifle was fired simultaneously with no-wind zeros on three separate targets set at 1000 yards. Ian used a Vortex 15-60X52mm Golden Eagle scope (as did runner-up Ted Plunkett). The 284 is already a pretty straight case and comes with a 35 shoulder so I'm not sure it would be worth the extra time and money to blow it out to a 40. I use about four patches of Carb-Out, let it sit a few minutes, then use one stroke of a nylon brush followed by Patch-Out until the barrel is clean. You are using an out of date browser. I find that funny because if could somehow properly size the cases for three fire-forming cycles, I would not need a sizing die. Barrel: Duane made another good choice here. 14ozs. After researching the winning competitors, rifles, and rounds I ordered a Panda action with Krieger barrel in 6mm Dasher from Kelbys. You may see 40 units (on the K&M dial) dropping to 20, then slowly increasing pressure. The extra boiler room is enough to drive the 180s at 2900-2950 fps with H4831sc, with long barrels. Down one mark cut the group in half! This includes Tikka T3X and many Tikka and Sako rifles. The rifle is fitted with a red dot sight, ammo caddies, Ranger Point M-LOK handguard, and a modernized modular buttstock. I had a one custom die that would not size the bottom of the case enough. Record Fire After record fire begins I shoot very fast, holding off for the wind. We hope these pride and joy rifles may provide inspiration for our readers, whetting their appetite for their next competition, varminting, or hunting rifle project. This made the extraction of fired cases very difficult. Heres my advice: If it makes sense, try it. It still supported on a 3 forearm and is full length. We would compare notes frequently. Multi-Discipline Versatility This means I typically shoot 120 to 150 rounds on average between barrel cleanings. Jason noticed that Bryan had been adding aluminum rails to the front of Cerus stocks to lower the center of gravity and improve tracking. The 6.5 caliber allowed for the use of long, aerodynamic bullets. Share the post "Hydro-Forming, Annealing, Neck-Turning by DJs Brass". By blowing the sidewalls out 0.010, the .284 Shehane picks up about 3.3 grains of extra case capacity. 284 Winchester Load Data - (Archived) - Nosler Do you have a gun youd like to see featured there? Yes old dogs can learn new tricks. He decided to go with a Brux 1:8.5-twist, 4-groove cut-rifled barrel. The proud owner, Forum member Aeon, tells us: This is a Gary Eliseo RTM chassis with pickle forks. Hydro-Form Specialty cases (such as Dasher) $0.60 (sixty cents) each minimum of 100 pieces plus actual return shipping cost He can also turn the necks to your specs (for an additional charge). It was one week before the match and I had a rifle and no rounds. PLEASE CHECK YOUR BOLT DIAMETER BEFORE ORDERING. I start 0.6 grains lower than my last charge that worked. In 2013, Henry Pasquet won the IBS 1000-Yard Nationals shooting a .284 Shehane. We know that Krieger, Bartlein, Satern, and Hawk Hill Custom all make fine cut-rifled barrels as well. Many eye-catching rifles start with a great paint job. My bullets were so consistent that I did not sort by bearing surface. and F-class cross the coarse shooting. Sent the pad to Gary Eliseo and he sent it back with the butt plate machined to fit. Tuners definitely can work. Support Our SPONSORS Competitive Edge 5 x 2.5 'Big Bottom' What are the best components for an F-Open class rifle, and why? Thats a question that I get asked all the time and will try to answer in this article. DJs Brass can process everything from .17 Fireball all the way up to the big magnum cases. The Lapua brass is worth the difference. At the request of some of the forum moderators, Id like to start a discussion on the 284 Shehane (improved 284 Winchester). I didnt have a good paintwork place so I had to improvise. Compared to the original Master Class F-Open stock, the barrel sits about an inch lower. I do not weigh brass, bullets, or primers. I used to shoot F-TR before this and made the transition to Open last season. The load consisted of BR2 primers with H4831SC powder. This article covers only the (currently) most popular cartridge/bullet combos for F-Class (F-Open and F-TR). It was all about bolt lift. In a very short span, Ballard and this rifle racked up an impressive string of performances. I also liked the fact that the MB (medium long front) action offered an extended front end. Us old guys need all the help we can get. All of the above information is based on my personal experience and it is meant to help new shooters choose the right cartridges for F-Class matches. ***.284 WIN LOADS*** 284 shehane .317 neck 54 gr 4831sc Lapua brass 6.5x284 necked up 180 Berger hybrids 5 thousands off lands Fire forming brass does this at 100 yards 5 shot group. It has a custom Ceracoat paint job to match my sling gun. Key components are: Pierce Engineering long action tube receiver, Bartlein 1:8.5-twist barrel, Jewell trigger set at 2 oz., and Vortex Golden Eagle scope in Vortex rings. I asked him to modify my stock and fit it with the new forearm rails, shown in the photo below. Congratulations to the new F-Class Champions. I wanted to do something different PAINT it. Typical load for a Shehane is around 57.0 grains of Hodgdon H4831 SC.". All this data was duplicated on several occasions. Ian loaded Berger 200.20X Hybrid bullets in Lapua brass with Vihtavuori N140 powder and CCI BR4s. With the .284 Shehane, you have a .308 bolt face, medium action, and Lapua brass. The Dasher had actually been giving tighter groups under perfect conditions, but seeing the impact is important. The chamber was cut with a reamer made for Lapua 6.5-284 brass necked up to 7mm. This load ran at 2825 fps. I encountered vertical, vertical, and more vertical. That way your fouler shots do double-duty and you get your brass fire-formed without putting extra rounds through your expensive barrel. Henry: I try to keep my charge weights consistent to one kernel of powder. History [ edit] The parent case .284 Winchester was created around 1963, but did not see extensive commercial use. With a standard .284 Winchester, or better yet, a .284 Improved, you can drive the high-BC Berger 180gr and 184gr bullets to competitive velocities. So I only have to apologize about some red flakes in our bathroom., We like this handsome quilted Maple-stocked Mauser belonging to Forum member Steel Mover. Why do you like the .284 Shehane? Our buddy Erik Cortina interviewed Norm in this video, starting at 00:15: Interview with F-Open Champ Norm Harrold at 00:15: In Team competition, Team X-Men won the 1000-Yard F-TR Team Title, with a 1568-61X score. Why did you go from a 6mm Dasher to a 7mm Shehane? Reloading Data .284 Winchester (using Sierra bullets) Metallic ga.src = ('https:' == document.location.protocol ? It takes a great rifle to approach that goal, but it is also up to the shooter to learn and experiment as much as possible in order to achieve success. Q: You go 60-80 rounds between cleaning and the results speak for themselves. This procedure is recommended by Joel Kendrick, the 2004 IBS 600-yard Shooter of the Year. .284 Winchester - Published Manufacturer Loading Data. Shellholders If you want more than a standard 284 Win in a short-fat, move up to a 7mm WSM. I shot my best-ever 1K Heavy Gun group (3.348) at days end after 60 to 80 rounds. The .284 Shehane has won in Benchrest as well as F-Class competition. I talked two stock makers into making them. A 284 Shehane at 2900f.p.s. He said he had just the stock that I could use, and sent that to Bryan Blake at Blake Machine. MV is 2680 FPS. The parent case for this wildcat is the 284 Winchester. DJs Brass Offers Specialized Custom Services The full stock depth continues farther forward that on some other low profile designs. 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. The rifle began its life as a Will McClosky Cerus stock. I sort my bullets to 0.005 overall length, rejecting about five percent. After a brief conversation with Alex, I placed an order, and had the stock inletted and bedded at my shop in a month. We ran about .002 neck tension with the 180s seated just touching the lands. This barrel has 2200 rounds through it. That enhancement makes a BIG difference. Here he is with parents Karen and Ken Klemm. Forum member Jim Hardy has shot the .284 with great success. var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; A lot of barrels will top out at about 2850 fps. A lot of novice (or hard-headed) shooters make the mistake to push their cartridges to the max, and disregard more accurate loads at lower velocity. I considered getting a RAD Pad but that would have required expensive machine work. About his two guns he posted: All I need is a can of bear spray. In C.I.P. Reloading Depot . Its proven track record helped as well. I never practice. Here are testimonials from recent customers. I will run it through its paces shortly and see how well it does. Report by Emil Kovan Henry also runs a combo tuner/muzzle-brake. I then push one wet patch of Eliminator through the bore and leave it. That is almost exactly where I run my 26 7 Saum with 180s and RL 23. I run a 184gr Berger at about 2850 FPS and get great brass life in my other rifles. 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. I have a 29 barrel also though since its a setback. He covers sighter strategies and techniques for record fire, and he also explains, in detail, how he dopes the wind and judges hold-offs based on mirage. Ians father, Ken Klemm, finished third among High Masters, and also nailed the highest score among ALL shooters in the 1000-Yard F-TR team match. The .284 Shehane Accurate and Forgiving Wildcat _gaq.push(['_trackPageview']); Vihtavuori has added new loads to the available reloading data, and this time we're also offering data for the .284 Winchester! . I found this very important in holding good elevation (minimal vertical dispersion). That enhancement makes a BIG difference. And if youve got a bucket of brass to neck-turn, thats fine with Darrell he recently neck-turned 1500 pieces of brass for one customer! Thats a $.25 per round difference, equivalent to a 60% savings for the .284. This does make a difference at 1000 yards. Cartridge : 6-284 6mm/284 Shehane Bullet : .243, 87, Hornady BTHP 2442 Useable Case Capaci: 60.930 grain H2O = 3.956 cm Cartridge O.A.L. My action of choice was a beefy 1.55-diameter, round BAT MB, Left Bolt, Right Port. 6mm-284 winchester Reloading Dies for sale at Midsouth Prices. Find the No bad reports about the new lots and the new box I have fireformed seem just as tight. I read the article on 6mmBR.com about Jerry Tierneys .284 Winchester and the cogs began to turn. My target seating force on the K&M dial is 20-23 units for Dashers and 35-40 units for the .284 Shehane. This gun hammers with 105gr Berger Hybrids., Courtesy Forum member Dan H., here are two red-stocked Dashers plus an Anschutz 54.30 (Benchrest Stock) to make it a trio. _gaq.push(['_setAccount', 'UA-6323545-2']); The purple .284 balances very well and tracks great. On top is a Nightforce 42x44mm Competition scope in BAT rings. To me, the 284/shehane is proven. The price starts at $60.00 per hundred for standard cases or $75.00/100 for magnum size. It had 2000 as a straight .284 Win and then I set it back to .284 Shehane to form brass with. Darrell also just got a custom hydro die for the .284 Shehane, a wildcat based on the .284 Winchester. Typical load for a Shehane is around 57.0 grains of Hodgdon H4831 SC. By blowing the sidewalls out 0.010, the .284 Shehane picks up about 3.3 grains of extra case capacity. ALL Bulletin content is copyrighted, 2023 AccurateShooter.com. I will travel to the F-Class Nationals in Raton as well. He loaded Sierra 100gr Pro-Hunter bullets, and took this nice Roe Buck at 240 yards through a gap in the foliage. If you were loading in a short action, maybe the 162 grain bullets would be the ones to go for. These are all very well-made and suitable for F-Class. NOTE: If youre skeptical of those single-digit chron readings, click on the Video Playback screen below to view Ballard test-firing a load that delivers an ES of 5 and SD of 2 for five shots. HoustonWe Have a Problem Four other people have shot their first 1000-yard matches with my rifles, including my wife, and all of them won relays! The 7 SAUM has a punch to it and I found myself having trouble finishing three relays without form problems in the last relay. If your barrel or bullets are average, dont expect to perform above average in competition. with holes in the buttstock and forend. That all paid off when Henry won the 2013 IBS 1000-yard Nationals this summer, finishing as the Two-Gun Overall National Champion. JC Steel Gunny Sergeant . Powders include IMR, Hodgdon, Winchester I've not shot any of these but there's plenty of info out there. Share the post "Hail the Champions: 2018 F-Class Nationals at Raton, NM", By Emil Kovan In matches with unlimited sighters, I generally hold dead center with a no-wind zero and use the point of impact as feedback. I had committed a big reloading No-No. That takes time, costs money (in bullets and powder), and consumes precious barrel life. You use less powder than the 7 mags, and have great accuracy and ballistics even while fire-forming. The .284 Shehane is a slightly modified wildcat that retains the same 35 shoulder as the parent case. Here are the initial powder tests for the Shehane. Starting at just $20 per 100 cases ($25/100 for magnum cases), Darrells company, DJs Brass, will anneal your used brass using the impressive Bench-Source annealing machines. Along with these popular cartridge types, DJs Brass can hydro-form 6 PPC, 30 PPC, 6 BRA, 30 BR, .260 AI, .284 Shehane and other wildcats. He posted: Got this 6.547 Lapua back from my smith about six months ago. The US F-Open team has been experimenting with the 7mm RSAUM. Now dont get me wrong, at 22 pounds with a decelerator recoil pad, the .284 is comfortable to shoot.