A Winchester mod 70 new still in its box.in .270 WSM
If you don't know about the 270 WSM read a little review below
Is there any reason, Mr. Peterson asks, to choose a standard .270 over a .270 WSM? To which I reply, there are a number of them. I've used the standard .270 since 1973, and shot and hunted with it about as much as I have with anything. I owned a .270 WSM for 10 years, but I used it a lot.
What you get with the .270 WSM is about 150-200 fps more than you get with the standard cartridge.
The velocity increase comes via a powder capacity that is 5 to 6 grains greater.
In the older cartridge, you can reach 2,950 fps with a 150-grain bullet, which I consider the most useful weight, while in the .270 WSM you can reach 3,050. I found that the lighter bullet weights give a greater increase in velocities. With 130-grain bullets you can get 3,250 fps, which is really moving.
- Barrel life in the WSM is shorter, although this is not much of a factor in a hunting rifle.
- The WSM kicks harder and makes more noise.
- The .270 WSM does make hitting easier at long range,
I like the .270 WSM. It did very well for me, and is, I believe, the best of the short magnums.