Shootin4fun
Well-Known Member
From Hornady's loading manual 8th addition.
270wsm 100gr max vel 3100FPS.
7mm wsm150gr Max vel 3000fps.
Yes it does give a slight edge to the 7WSM bullet to bullet, but then, the .270 will never push the same max weight bullets as the 7mm's period.
Correction to the above, probably a typo...Hogden reloading manual has max vel of both the 270wsm and 7wsm pusing a 150 out at max 2900+ - 3000+.
(The Sierra 110gr from a standard 270 Win (22" barrel) goes about 3140 fps in a load I use.
7mm is appealing to me because of availability of heavier bullets with high BC out to 1000 if I want to try that and for effectiveness on elk sized game. Agreed, 7mm has heavier max weight bullets.
Having said that, either caliber will likely work for me.