I've been shooting 75gr. Amax in my favorite gopher rig (223AI - 8 twist) but I haven't been all that impressed with the terminal performance on gophers. I just order 1000 69gr., SMK's but after reading Cummins4x4's thread on the SMK's failures in the field (http://www.canadiangunnutz.com/forum/showthread.php?t=484884) I'm starting to reconsider these bullets. Anyone having good success (terminal performance) in the gopher field with 69gr - 80gr bullets.