My son & I use the Buffalo Bore .348 Winchester 250-grain ammo in our two Model 71's - a 24" rifle and a 20" "carbine." It is excellent stuff - meets advertised velocity (2250 fps), is accurate, & is consistent. Penetration in test medium (and in black bear) is excellent. Buffalo Bore uses an Alaska Bullet Works Bonded Core 250-grain bullet, which I found to expand less but penetrate deeper than a Barnes Original 250-grain. I really recommend this load.

Redcoat