Rugged Hunting Rig with Long-Range Benchrest Accuracy. In all respects, that's a good thing. Remember, when you neck UP brass you are making neck from thicker-profile shoulder metal. I basically do Froggy's technique when shooting from a bipod. If we take our range to the target in hundreds of yards, then subtract three from that number and an additional .2 from that, we get our elevation hold in mils. This time I put the ten SMKs in about 5 inches. This last step will probably not be necessary, but you should definitely see if your brass chambers before you charge the cases and seat bullets. One reason may be that with the reduced case capacity I am not sure a 175gr can be loaded, as it can in the std 7MM Mag. My cases were formed by necking-down Norma-brand 300 WSM brass. So I better try 5 more. Ultra-accurate in 9-tw Broughton 5C barrel. The .30 caliber is capable of launching heavier bullets at higher speeds, but few people can honestly withstand that kind of recoil. It is very uniform, and stands up to high pressures better than other brands. All told, both are wonderful cartridges for hunting some of the larger species of North American big game or African plains game. With Norma brass, we've found you can pretty much shoot it out of the box.

Copyright 2003, 2018 by Chuck Hawks. Second, both cartridges use the same .277″ diameter bullets.

Two years ago Bill Shehane wildcatted an improved version of the .284 Winchester. One work-around is to choose bullets with relatively short bearing surfaces so you can keep the base of the shank well above the neck-shoulder junction. It’s not a gigantic difference, but this often means that the 270 WSM has a definite advantage in terms of external ballistics and sometimes slightly less recoil, but that the .270 Winchester is more often available in shorter, lighter, and easier to handle rifles. As with the first barrel, the second barrel yielded 2775 fps with a "starter load" of 53.0 grains of H4831sc. I wanted a short action to save on weight for hunting, so that immediately drove me to the. The WSM cases all have a .535″ rebated rim that’s compatible with a standard magnum size bolt face. (SAUM). So I set up my portable target stand, drew one of my "high-tech" specialty custom targets (a big "X") with the magic marker, and go back to the little nest area. This rifle features a dual-port BAT Model M action in a MasterClass stock. Chris trued the action, added an SSG over-sized bolt knob, and fitted the action with a Broughton 5C, 9-twist #7 contour barrel finished at 24". Benchrest shooters discovered many years ago they could obtain a small, but definite advantage in accuracy by using short, stubby cartridges. The same goes for game like mountain goat, bighorn sheep, Himalayan Tahr, and chamois. That's a by product of the faster burning powders in the wsm.

If you don't sort the brass by neck-thickness, you should have at least .006" neck clearance over the minimum diameter of a loaded round to ensure that ALL the brass will chamber. The recoil difference between the 6.5-284 and the .284 is about the same as the difference between a 6x250AI and a 6.5-284. ? 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. Load for long-throated chamber, 3.09" COAL. Mag., but again, that's too much recoil in a competition scenario.

For all intents and purposes, there is no difference between them ballistically and both cartridges will really do a number on most species of big game. The combination of knockdown power, excellent ballistics, and reduced recoil (compared to a .308 shooting bullets of comparable BC) has also earned favor with Metallic Silhouette shooters. NOTE--The ES is coming down with the higher nodes. I often go up there for long-range "plinking" at the sandstone rocks. Now that we’ve covered the basic history and design of the Winchester Short Magnum cartridges, let’s see how they compare to the .270 Winchester, 7mm Remington Magnum, 300 Winchester Magnum, and .338 Winchester Magnum. As fans of the Winchester Short Magnum cartridges like to point out, the 325 Winchester Short Magnum likely does gain some accuracy benefit from its shorter powder column. Cartridge history, dimensions and external ballistics. What about when comparing bullets of the same or very similar weight? The main lodge was built back in 1905 and is presently the oldest homestead on the Yellowstone Highway. The rest of the time I shoot from a bipod. Gun Parts - Stocks, Barrels, Actions, etc. They are [both] excellent choices. Really, at the time, the choice of the 7 WSM was easy--no one else was really doing it, and if they were, they weren't talking about it. The .270 Winchester is one of the most popular centerfire rifle cartridges in North America and is very likely among the Top 10 (maybe Top 5) best selling rifle cartridges in the United States each year. The .270 Winchester and 270 WSM (along with the .270 Weatherby and the 6.8 SPC) use the same .277″ diameter bullets. Stock and Forend Parts. 10:30 a.m., up the mountain I go to my 1000-yard spot.

The interchangeable design also provides an enhancement of the already well-renowned Mauser extractor. Some guys running with super-tight clearance on the necks had persistant and frustrating accuracy problems and unexplained flyers. The .284 uses a grain or two more powder than the 6.5-284, and 7mm bullets cost about $6.00 more per 100-count box. I would encourage any long-range enthusiast to take a hard look at the details of the 7mm. The 7mm Winchester Short Magnum very likely does gain some accuracy benefit from its shorter and fatter powder column. Jerry Tierney, a past NBRSA 1000-yard champion and .284 Win "guru", has observed that overly tight chamber neck tolerances can cause accuracy problems. For that reason, the .338 Winchester Magnum is probably the closest comparison to the .325 WSM that’s in common use in North America. Looking at this from a different perspective, that's 4.8 inches per mph of wind.

It is the very heart and soul of a rifle. That's unfortunate, as it can offer the best bang for your buck as an effective and efficient long-range performer due to exceptional bullets with outstanding ballistic coefficients (BC) and muzzle velocities. That's big news for 7mm fans. For others, the debate goes on. Both rifles shoot exactly the same--same accuracy, same velocity, same trajectories. Well, when things go right, things go very right I guess. Bullet photos by B. Litz (above) and JeffVN (below right). The ARC Mausingfield is a work of art, blending the best features of three actions into one. Sierra Accuracy Load. Remington's Model 700 Mountain Rifle LSS (Laminated Stainless Steel) has become a favorite for hunters seeking a versatile, rugged, yet lightweight rifle.

... 7mm Shooting Times West Magnum (1) 7mm Weatherby Magnum (6) 7mm WSM (14) 7x30mm Waters (1) 7x57R (2) 7x64 Brenneke (4) 7x65mmR (1) 8mm (11) 8x57mm (5) 8x57mm JR (1) 8x57mm JRS (2) Hitting the wall--Since the 56.0 grain charge showed no pressure problems the last time out at 3078 fps, I tried 56.5. They’re both solid performing cartridges, but I’d personally choose the 7mm Remington Magnum over the 7mm Winchester Short Magnum. Both of those calibers have significantly higher recoil, and the gains are only .1 mil less for the same 10 mph full value wind. Analysis of the 7mm Caliber for Long Range Shooting

At reasonable shooting ranges, there’s very little practical difference between them ballistically and both cartridges will really do a number on both species of game. If I can get the ES down to single digits with long-range accuracy (that matches H4831sc) at 3020+ fps in all temps, I may go with RL-17.

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