Barrel life?

[Make_mine_a_magnum]

How many rounds can I fire of 7mm Magnum before my stainless steel barrel wears out, to the point of declining accuracy? The loads would be 160 gr. class at 3000 fps+, with 65-73 grs. powder. Would switching to a heavier bullet, like a 175 gr., when erosion makes shooting 160 gr. unfeasible, be best at some point?

 

[jcpython357]

MMAM, You should be able to get 1000rounds or so if your lucky, before accuracy drops off, after 2000 rounds you'll drop about 200fps, a heavier bullet isn't going to make that much difference, if shooting Longrange try the 162 A-MAX or 168MK, probably the main thing is to not overheat the barrel. **** the torpedoes...full speed ahead!

Jay.