Ran 270 and 270 wsm for my mountain stuff primarily. Good bullets between em I remember wsm added a couple hundred yards. Started win then up to wsm then back to win. Both go plenty far enough. The wsm gets snappy in 7 lb all up rifles, let’s you go short action though. Loved em both and both shot and killed well. I wouldn’t buy another wsm doing it over though. I ran Tikka, Sako a7 and then blaser k95.Considering one of these cartridges for a light(er) weight stalking/mountain rifle. Looking at the numbers it seems, much like the 308 vs 30-06 debate, the only difference is a couple hundred fps. Anyone have experience on the short mag? Is the difference noticeable over the Winchester?
The 270wsm has some slight advantages, but none of them outweigh the additional cost and limited availability of ammo and reloading components.Considering one of these cartridges for a light(er) weight stalking/mountain rifle. Looking at the numbers it seems, much like the 308 vs 30-06 debate, the only difference is a couple hundred fps. Anyone have experience on the short mag? Is the difference noticeable over the Winchester?
Never had any issues with any of my .270's chambering/feeding. I suspect that feed issues are more related to the particular firearm, magazine type or cartridge imperfections. I recently had to return three different boxes of 6.8W Winchester ammo for serious imperfections. They are having problems supplying these days so quality control has gone out the window. If there was a geometry issue with the case design Browning never would have chambered the BAR in all the WSM cartridges.A few points here.
1. Feeding problems. Has anyone had feeding problems with the short and sharply-shouldered (35°) .270 WSM? This has been suggested as an issue in some articles I've read. The longer and more sloping .270 Win. case will always feed and chamber reliably.
2. Magazine capacity. Most .270 Win. rifles carry 4 or 5 cartridges in their magazine. The .270 WSMs I've read about can carry only 3 with the much fatter case. To me this isn't much of an issue at all, but to some it might be.
3. With some of the newer double-based high-performance powders (like Alliant Re26), 3200 fps is easily attainable with a 130-gr. bullet in the .270 Win. having a 24" barrel, and 3000 fps with the 150-gr. bullet, all with safe pressures of around 60,000 psi. This level of performance reduces the usually-reported velocity/trajectory differences a little between the two cartridges.
I sold off the last of my 270 Wins before Covid just a a matter of housecleaning when I was moving south. I later picked up an XPR in 6.8 in a demo rifle when it just a new release and it has been a better rifle that I figured. I broke it in with Win 162 Gr Copper Impact as that was one of the only two offerings available at the time. The rifle seemed to like that bullet. I have since heard similar from XPR owners, less so from Browning owners. I bought the rifle with intention of reloading and my rifle seems to love 170 Berger EOLs and N570. I load with Barnes LRX 155 for Elk and Black bear and 129 grs for deer.I have an old Husky .270 win. It's a decent gun for it's age but really falls flat with cartridges over 130grn. IMO. So I purchased a .270 WSM some time ago now, for the benefit of speed and weight of bullet. It's a tack driver with 150grn Nosler ABLR's. I have become concerned with current governments possibly following California on the no lead hunting bullets so I made a purchase last boxing day and got a high twist 6.8 western. It likes the 165 ABLR's but loves the 162 copper impacts. I am working up a load with Hammer 160grn HHT's for it and am very impressed with the velocity and accuracy I'm getting.
They are all good. You need to base your choice more on distance your willing to shoot to and size of game your taking. And of course, budget. It's a great caliber. Cheers