i have done a fair bit of experimental loading for the .308 win in 22 inch sporter barrels , i have found a lot of low velocity loads that shoot 1 1/2inch groups, or slightly smaller , but not much for velocity below near maximum loads , it seems that you must work up to the max loads in the manuals to be safe and achieve anywhere near useable velocity , powders used are imr-4895 , imr 4064, rl-15 varget, win748,blC-2, any ideas? i think i may give up and buy a 30-06 ,, wade