Palma class requires a 155gr bullet I believe. I think out to 1000 a good 155gr bullet would be great in the 308. I've been debating trying the 155TMK's when I finally get around to messing with it again. I'll know by the end of the week hopefully if I get into the 2016 Vegas Precision Rifle Challenge. If I don't I think I'll play with the 308 again for some practice then switch back to my 6mm after a couple months.