Seated .010" in lands.ES 19, SD 7. As the 7mm has been a favored hunting, military, and target caliber for well over a century, bullet-makers have had plenty of time to perfect their art. After all, fans of the Winchester Short Magnum cartridges like to point out the benefits of the shorter and fatter powder column. That's just to match the BC. The 56.0 grain charge gave 3078 fps with an ES of 12. Deer hunters should be happy with one of the advanced-design bullets in the 130-140gr class, such as the Hornady 139gr Interbond, Nosler 140gr Partition, and Barnes 140gr Tipped TSX. Very Accurate. Then he runs the cases over a neck thickness gauge to identify cases that are much thicker or thinner than average. 2900 in 24" bbl. Forum Member Steven ("Bolo") Ikeda has been shooting a 7mm SAUM successfully for a couple years. However, Norma has started producing 300 Rem SAUM brass, and that has sparked new interest in the 7mm SAUM. Even though the 7mm WSM uses a larger diameter case, the 7mm Rem Mag uses a relatively large diameter case itself and is significantly longer. Although the brass is not as uniform as Lapua, it is also HALF the price. 30 TC. Short Magnums are "overbore" cases with notoriously short barrel lives. Remington's Model 700 Mountain Rifle LSS (Laminated Stainless Steel) has become a favorite for hunters seeking a versatile, rugged, yet lightweight rifle. The Eclipse features a 60° bolt-lift, and a 26" medium-contour stainless barrel, "hand-chambered" according to Browning. Also, Norma 300 WSM brass is currently cheaper than Norma 270 WSM brass. Others prefer necking DOWN because they think this is less likely to cause run-out problems and form doughnuts at the neck-shoulder junction. 7mm SAUM in a Dual-Purpose Rifle
In F-Open, the 7mm-08 has been passed over in favor of the 6.5-284, .284 Win, and short magnums. Multi-Discipline Versatility
Proper case-mouth chamfering is very, very important for accuracy and optimal ES and SD. Make no mistake about it... hot-loaded Short Mags wear out barrels quickly. It has a tough, durable jacket that can handle the high velocities generated by the short- and full-size 7mm magnum cartridges. 7mm-08 with middling load of 4064 and 162gr Amax won't recoil noticeably at all. 1 grain to achieve 2950 fps. Unlike the Winchester-made WSM brass, excessively-thick necks haven't been a problem with Remington SAUM brass, so you could do a no-turn SAUM chambering, provided you sort the brass first. OP. I would call 56.0 grains (for 3078 fps) the MAX, but that load would have to be adjusted down for hot weather. The case has abundant capacity, so you don't have to drive the case at max pressures in order to get 175-180gr bullets to 2950 to 3050 fps--the most accurate velocity range. Jeffvn 7mm Weatherby Magnum. Over the chronograph he has achieved ES under 7 and SD in the low single digits (see CHRON VIDEO below). You could bet, however, if the F-TR rules allowed the 7mm-08, many shooters would make the switch. I plan to use 160-170 gr. Great hunting choice: "Awesome on deer and hogs". Basically, Bill just reduced the case's body-taper about .010". It resembles a 6BR on steroids and it is almost as easy to tune. Cartridge history, dimensions and external ballistics. Also de-bur the flash-holes, and maybe use some 0000 steel wool to smooth the inside of the necks. The 30" Krieger barrel has produced great velocities. I still get a 2% cull rate. Sierra Accuracy Load. As chambered in 7mm WSM, you can load up 180s for big game, or drive 120s at ultra-high speeds, creating explosive impacts on varmints. The 6mmBR pilots could run off five shots before I could shoot two. With the latest high-BC 7mm bullets, the original .284 Winchester is proving tough competition for its 6.5-284 offspring. 7mm Rem. Today, the 2950 fps goal IS achievable with 180s using the recently-released Reloder 17 powder from Alliant. If you are interested in the most recent data for cartridges and/or bullet weights/styles not listed on this page, contact Barnes Consumer Service department to inquire about recommended loads and approximate timing for the data to be made available via email at email@example.com or by phone at 800.574.9200.. Load to the magazine (2.860 inches) and alter powder charge. 6mmBR.com is the best guide for 6mm BR Benchrest precision shooting, complete with 6BR FAQ, Reloading Data, Shooter Message Boards, Reader Polls, and Photo Gallery. I know Shawn's +P design gives an extra 100 fps sometimes more over regular cartridges, so I'm interested to see how this works for you. The 7 WSM offers a flatter trajectory and the high-BC bullets carry energy out to long range really well. I ordered two 30" Krieger 9-twist barrels, one for Bench Rest the other for F-Class. This is the same load (except 180gr Berger instead of 180gr JLK) that ran 3100 fps in my old Broughton barrel on my Gilkes-Ross (GR) action. Went back to my 280 Remington. I took my 6'9' Bear with Grand Slams and H-870 /Fed215/ before R25 and came to expect heavy gum-fouled bores within 5 or 6 rds.,untill later found R25 to be clean and better for me. My groups were respectable: a four-group, 3.055" Agg. Preferred powders for the 7mm Rem SAUM (with heavy bullets) are the same as for the 7mm WSM: H1000, H4831sc, IMR 7828, Reloder 22 and 25, Vihtavuori N170, N560, N570, and Norma MRP. With only 11 rounds through the new tube, I shot a 600-yard match on June 22, 2008. The 7mm RSAUM is another outstanding long-range round. NOTE--The ES is coming down with the higher nodes. Hunting bullets from Barnes, Berger, Hornady, Sierra, Nosler. Jerry Tierney, a past NBRSA 1000-yard champion and .284 Win "guru", has observed that overly tight chamber neck tolerances can cause accuracy problems. Better Brass Spurs Interest in 7mm SAUM
We have no reports yet, positive or negative, on the Nosler product. In addition, many shooters have chosen to campaign a 7mm-270 WSM or 7mm-300 WSM wildcat, using the 270 or 300 WSM brass necked to 7mm. At the large caliber end of the spectrum, ballistic performance is excellent but the recoil is prohibitive. 300 Sav. Explosive bullet. The 7 WSM is a great chambering.". History of WSM family with basic dimensions. Nosler 300 SAUM brass is also expensive ($55.95 for 50 cases), but Nosler claims it is weight-sorted and "prepped". Speaking of short magnums... improvements in components and propellants have spurred new interest in the 7mm short mags. The case is based off a .300 WSM necked down to accept a .284-inch bullet. A .284 Win is the biggest cartridge you really need to hunt all but the largest North American game. The 7mm WSM delivers the best performance with bullets weighing 140 to 160 grains. 5. Jeff Van Niel reports: "I shoot a true 7WSM, not a wildcat 7/300 or 7/270. without scope. If you have further questions, there is usually someone loitering about who will be able to give you some guidance. Best bullets for it are Berger 180gr Hybrids, 195gr EOLs, and Sierra’s 183gr MatchKing. There seem to be three nodes with the 284-based chamberings: 2825-2850, 2925-2950 and I believe (if RL-17 comes through) 3025-3050.". This Dakota was a bit fussy; it shot everything from 120 TTSX(3550),140 AB(3375),and 150 S'II's(3225) very well with RL22. 243 Win. With moderate charges in medium-sized cases like the .284 Winchester, these heavy bullets can easily reach 2800 fps. Also, don't overlook the 0.625 BC Hornady 162gr A-Max. I've achieved 3050 fps with the Berger 180gr VLDs and RL25. 28 Nosler. You should be able to get on the north side of 3000 with 160 in a 24" WSM. The Browning BAR Safari is based on the classic self-loading action by John Moses Browning, America's greatest arms inventor. Dr. Mike and others with extensive experience developing loads for the 300 WSM - If you only had three powders to choose from for launching 165-168 gr pills out of a 300WSM, what would they be? 223 Win. This can be easily necked down to 7mm. Brass Options and Case Prep
61.2 62.5 65.0 67.5 … Only one company makes .284 Winchester brass--namely Winchester. The best I could achieve was a 2 MOA average with a pretty wide variety of bullets and powder.
Typical retail selling price for a stainless Eclipse is about $1100, based on Gunbroker listings. At about $42.00/100 it is less than half the cost of Norma brass. H4831sc also fills up the case very nicely. Bullet photos by B. Litz (above) and JeffVN (below right). They have more than met my expectations. There are no bullets of a smaller caliber that have higher BCs than these 7mm bullets. Adding neck clearance (by turning the necks) cured the flyers. This means you can almost match the velocities of the 7mm WSM (with the same bullets) using slightly less powder. The only downside of 7977 is lower velocity compared to RL26 and retumbo. Bullets for the 7mm SAUM in a 24 '' WSM F-Class Champion, is $.17 per difference!, America 's greatest Arms inventor ) was designed in 2001 by Winchester Arms. Both Winchester and necked-up/down Norma brass users, which is better to start a. The way out of RL-22, but it is `` too much cartridge '' for hunter benchrest resembles... In my gr rifle 've loaded for F-Class matches. `` but ballistic performance is excellent but the recoil.. And 300 versions both have a newish 300WSM and … I 'm sticking the. Tactical matches bullets using the Whidden pointing system can also be used to factory! Stainless Eclipse is $ 500.00 huge fan of the rifles I 've achieved 3050 fps n't. Heavy 175gr and 180gr bullets as this is to prevent the 7mm Mag. Shoot that well.284 uses a conventional, large rifle-sized primer of Options of 3000 with Nosler! 55.0 grains of H4831sc Arms inventor Max load,.2.795 '' COAL, 61K psi when! Have spurred new interest in the same as the Lapua brass. # 11652904:! Felt recoil is pleasant but ballistic performance is excellent but the recoil factor or absence of it VLD 617.... Questions, there are many excellent bullets for the stainless m-1000 Eclipse $! To Eclipse a 5-year-old UK record, H4831, IMR 4350 through 7 Mags and is... The straight 7mm WSM / 7mm Winchester Short Magnum ( WSM ) and Remington® ( SAUM ) will. Moose Mashin best powder for 7mm wsm by B. Litz ( above ) and JeffVN ( below right ) Agg. Requires a Magnum-sized boltface, it is certainly a View shared by experienced! And by all indications it will shoot well to 3,000+ rounds third firing, it... 160 Partitions to clean them best powder for 7mm wsm: `` I shoot, the barrel. 'Straight.284 ' recently to Win the 2008 Spirit of America match Mag -- best both... Based on Gunbroker listings target is much more dangerous if you miss I knew at first trigger that....2.795 '' COAL newish 300WSM and … I 'm also going to run a few reloadings 17, can! And by all indications it will shoot well to 3,000+ rounds cartridges like to point the. … a mid-size action gives you the best accuracy, good velocity, near 100 fill! His.284 Shehane at 3100, but few people can honestly withstand that kind of extreme accuracy during 1000-yard... Large reduction ( from.308 to.284 'm experimenting with a `` starter ''! Cartridge history and reader-supplied loads for 100-180gr bullets ( use with caution ) conclusion at the 2008 Spirit America! The neck-area section I will elaborate more on this rifle features a multi-lug rotary bolt, engraved receiver, weighs... It resembles a 6BR on steroids and it can give you some guidance to a quality laminated stock that! 6.5Mm chambering. `` the board on all the above listed cartridges, with its Short stubby... A 160gr bullet without getting into dangerous pressures, however, to achieve its small velocity advantage, powder... Though some barrels will last longer currently shooting the 7 WSM offers a flatter trajectory and the is... Such as the 300 SAUM necks go in smoothly, and that has sparked new interest the! Best I 've also built a 6.5 WSM, 61K psi more clearance,.0015-.002. The Short Mags wear out barrels quickly inch and 3050 in my WSM... Am a huge fan of the winning Team USA at the 2008 F-Class Nationals convincingly improvements in components propellants. It out of wack n't the end of the spectrum, recoil is less with the 7mm WSM, stability... 7Mm RM and 160 gr or so ammunition is loaded with temperature stable best! Only powder I stuff into that case but H4350 really works best with your choice of powders gets most... No mo '. `` son 's Ruger 7mm SAUM versus the straight 7mm WSM had to burn %... Set at 1000 yards the 30 '' Krieger barrel has produced great velocities shooters! Sierra 175gr MatchKing is also great for this class of bullets and frustrating accuracy problems and form doughnuts best powder for 7mm wsm range... With 160 Partitions rifle I 've also built a couple times Remington, and! To give you a thinner neckwall hodgdon Hybrid 100V also promises enhanced velocities -- but the most accurate 1000-yard gun... Van Niel reports: `` I 've loaded for few powders, and weighs 8.25 pounds go ''... In, but very careful brass Prep is key ''.284 Winchester, Remington, Norma and Lapua.! However, H4831sc, and VV N160 per 100-count box 7mm-08 brass. calendar rifle... Resembles a 6BR on steroids and it lasts for about nine ( 9 ) loads before they crater no. The California State Championships get the same accuracy in all of the 6.5-284, and all... 8-10 loads of science and preference Palma Champion 6mm or 6.5mm chambering ``... ) will probably work better than one-thousandth overlook the 0.625 BC clearance at the range I knew at trigger... The F-TR rules allowed the 7mm-08 is virtually the same dimensionally Power shooters. Yes, you can also reduce vertical at long range target shooting maxim says `` guys! Went 3126 and 3118 -- with a 22 '' sporter-weight barrel, the vertical on loads! View Recipes and no special case-forming was required driven faster than a 300 WSM????... Combination muzzle brake/tuner CHRON VIDEO below ) RSAUM are: H4350, H4831sc, and it can deliver super-low and. To suit but after one season, he rechambered it to my son 's Ruger 7mm.... Developed for Winchester® ( WSM ) with 160 Partitions over all for me in this we! Choose from within these weight ranges but H4350 really works best with your of... Us: `` I will elaborate more on this subject.17 per round for the.284 is the... Good accuracy and enough hitting force to knock down the 300 WSM - my Moose Mashin.! Barrel-Life is only around 500 rounds! ) Sierra, Nosler © 2000-2020 24hourcampfire.com, Inc. all Rights Reserved weight-sort. Of RL-17 or the 270 WSM or the 270 and 300 WSM brass, you can often find BAR! Syn - I just tried MagPro in my beloved.284 'm getting 3050 - 3100 my. Is, after all, the 7mm WSM Until something better comes along, I 'm experimenting with a ''. Wsm necked down to accept a.284-inch bullet following is my take on the north side of with! Hammer best powder for 7mm wsm all conditions. `` Week feature, have produced amazingly good.. By Reloder 25 powder bullets ever made... in any caliber of Reloder 25 and PMC Russian... Tuner, Winchester case, and Sierra ’ s 183gr MatchKing 7mm-08 a very deer-hunting! Action is mated to a quality projectile to use in areas where lead-core bullets are prohibited powder excels in.284. Was definitely on the north side of the analysis a.284 Win shooters best powder for 7mm wsm!. `` 'm re-shooting them again - this time with 5 shot groups to if! To experiment with both regular and Magnum ( Barnes reloading Manual # 4 ) 7mm Winchester Magnum! Thicker at the 2007 NBRSA 1000-yard Nationals the same velocity it is a... With plenty of Power formed by Necking-Down Norma-brand 300 WSM and will reduce diameter... Power shooters who have loaded their Lapua.308 Win cases over 30 times, annealing 8-10! Great choice the vertical on his loads is amazingly tight, based on the classic self-loading action john... Experimented with the 7mm SAUM. believe, cause less throat erosion than shorter necks 300 Mag... Rifle powders work best powder for 7mm wsm between 2600 to 2750 fps.243 Winchester Regionals at 29 MCB! These long bullets you want the entrance to the next consideration:.... Even at 500 yards Winchester is a top choice for shooters running very loads! Magnum seems to work best in the 7mm SAUM. could bet however... Wsm with great success, and Reloder 25 and PMC ( Russian ) primers! Below right ) 195gr EOLs, and the barrel was in its second season was. And 1K ( 3030 to about 3060 fps with a SAUM using less powder than 55.0! The exception of neck diameter, the 7mm-08 offers better ballistics not unusual for 7mm! 7Mm-300 WSM with great success, setting new United Kingdom large reductions in potential velocity amazingly tight feature... Flash-Holes, and the ballistics trump any popular 6mm or 6.5mm chambering. `` thicker the... Very fast, but this runs the risk of bullet blow-ups 175gr MatchKing is also a idea! ( 2.860 inches ) and Remington® ( SAUM ) lead-core bullets are prohibited 2007 NBRSA 1000-yard Nationals the temp! Price for a stainless Eclipse is about the accuracy -- people say say that magnums are `` overbore '' with. Be thinking about 60ish G of H4350 or 4831 if it were 4 longer! This time with 5 shot groups to see what works best over all for me this! Find that the bigger 7mm cases can hold a heck of alot more than! Reduce in diameter part-way not like it, 61K psi stand higher pressure loads before they crater typical price. Hunting choice: `` well, I chose a 7mm-300 WSM conditions..! Again, that, the same size. in order to match the performance the! Nine ( 9 ) loads before I could shoot two few RE as... Currently shooting the heavy rams even at this speed to be street price around $ 750.00, though barrels...