308 brothers, need help. I just bought a DPMS 308 with a 18" barrel with 1x10 twist (?) and I am looking for some load info for that rifle. I see load info for 16 " and 20 to 24 " rifles, but nothing for 18" so far, I am new here. Had a socom got rid of it, traded for DPMS. I reload and what I am seeing here is that a lot of ya'll are using 168 gr bullet for reloading. Does anyone know how the 147-155 gr shoot from an 18" DPMS? I am thinking that 168 gr to much for 18 " barrel and that a lighter bullet is better, if not please enlighten me, love to learn more about reloading. Looking to pick the brains from those that have been reloading for awhile. Look forward to the info, thanks to all that reply.