I've heard of over 3000 with a 22" tube, but I'm not going to suggest it's beyond a 7mm mag. Also there would be an advantage at range due to skinny 7mm bullets. Certainly would matter if looking for a long range rifle (>450-500yds). But it's also close enough that out to a few hundreds yards, the ranges where probably 90%+ of game are taken, I doubt one could measure much of a difference in the field. Barnes reloading data indicates 3089 fps for the 160 (albeit a 24" tube). I've found I can meet their data easily with a 22" though.
Last edited by prm; 04/13/11.
