At one point I had a Chambered Krieger fluted barrel for the 6.5 WSM as well as the reamer and dies although I never put the barrel on anything and sold the whole mess . The 7mm shoots .284-inch diameter bullets through bores .28-inch across, but only two use this Imperial measuring system in their titles: .280 Remington and .284 Winchester, both excellent but under-rated “standard” velocity cartridges. Of the two, 6.5 SAUM or 7mm Rem SAUM, does anyone have any recommendations or suggestions? Just have the barrel throated so you can load those big pills way out there, to make room for more powder. I'd like to go with a 6.5, but have absolutely no experience either of these rounds. GunFather Precision 2,751 views. 6.5 GAP 4S Velocity. rifles. Knowing how I am, I made certain to twist the barrel enough for the 195s. Unless you make an effort to do so, I think that it is pretty hard to burn out a barrel in any hunting rifle. My vote would be for the 7 saum. Not attached is the handy, lightweight Limbsaver sling. I love how well it spits my 195 grain Bergers, but the recoil is brutal when shooting gongs with friends. I considered the 7mm-08, 7mm-08 Improved, .284 Winchester, 7mm SAUM, and various short-action wildcat cartridges that would allow me to keep weight to a minimum and still make the moose-terminating grade. The 7 SAUM is as easy as anything else out there to reload and is not any more difficult than others to find a load which works. Mike Degerness of Proof Research exhorted me to come to my senses and go with the .280 Ackley Improved. The SAUM line of cartridges are on life support and long term success doesn't look good I can tell you this, if you go with one for your SRS, make sure you use long bullets like the 183 or 195, and seat them long. Necked down Norma and Remington 7mm SAUM cases are reduced to the same diameter. and exactly the same claim is made for the 7mm WSM. My vote would be for the 7 saum. I'm really leaning towards the PRC, but I've also heard the SAUM is no slouch. The 7mm will outlast the 6.5mm in terms of barrel life, and the BCs of 7mm bullets on the market seem to be higher than the 6.5 offerings. When installing a heavy, 26-inch 6.5 SAUM Shilen Select Match barrel on one of my switch-barrel target rifles, I went with a .295-inch chamber neck. Looking at a 1,000 yard firing solution with 5,000-foot Density Altitude (DA), I would be at 6.8 mils and Dan just completed a 7 SAUM for me intended for low recoil long range practice with Berger 180s. One of the main benefits of the 7mm is the wide variety of heavy bullets with high BCs and low form factors, both desirable for efficient trajectories. I picked up the Barreled action from Match Grade Machine and hit the range with the 7mm SAUM! Main use will be generally Mtn hunting so about 8lbs with optics, and fairly compact. 7mm Rem Mag vs 300 Win Mag: Which Is Right For You? The 7mm SAUM is an impressive long-range performer. The magazine is the same as on the standard-caliber AR-10, though the polymer follower is reshaped to accommodate the different cartridge stack of the .300 SAUM. Remington countered with the SAUM line. Winchester's 300 WSM and 270 WSM are solid rounds that sell well. Note Leupold scope (inset, personalized in the Leupold Custom Shop), NP3 plating and LAW muzzlebrake. In shorter barrels, performance declines dramatically. ColdboreMiracle explains how he selected the 7mm Rem SAUM chambering for his Desert Tech SRS Bullpup: “I just did a comparison between barrel life, velocity, brass, etc. Mag. Likely going with a lilja No3 contour, 23”ish barrel. GunFather Precision 160 views. It sounds like I heard wrong about the 7mm Rem Mag having twice the barrel life (all other factors being equal). Predicting Barrel Life By Cartridge - Duration: 7:57. Northland stocks the most common lengths and contours on the shelf and can also custom order barrels for you in the following contours. I was going to say the 7mm WSM. I can tell you this, if you go with one for your SRS, make sure you use long bullets like the 183 or 195, and seat them long. Each … The slow burning H1000 powder helps keep the pressures well below the maximum mark, keeping the recoil down and also extending the barrel life. Remington claims that the ballistics of the 7mm SAUM equal those of the popular 7mm Rem. These claims are valid if the short magnum cartridges are fired in 24 inch barrels, the same length as the barrels of most 7mm Rem. Re: 7mm SAUM Rechamber/Barrel Life #66 Post by GSells » Wed Sep 05, 2018 12:12 pm Azzopardi wrote: Wooo, steady up Keith, never said I was an expert and definitely not an Gunsmith; just like getting behind a gun, doesn’t makes you a shooter. Which would you go for? 7mm Remington Magnum (7 Rem Mag) Barrel Length Versus Velocity. 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