Factory Ammo - For my R5 Milspec .308 - hard to beat Federal Gold Medal 168 gr. For my Sendero .300 Win Mag - Federal Gold Medal 190 gr.
DPMS .223 AP4 - Federal 50 grain HP - cycles well - good varmint round.
DPMS .308 AP4 - Remingon 150 PSP - cycles well - good varmint round as well. Federal 150 gr PSP WILL NOT cycle. Winchester works ok too.
Tried some reloading of the .308 for the AR - didn't crimp - no issues there with bullet movement in the magazines - tried IMR 4895 from 40.5 to 45.0 - groups were OK, not spectacular, but velocity doesn't get close to the Remington Core-Lokt 150 grain factory rounds (2600 fps out of the 16 inch barrel) using the same bullet until at the high end of the powder charge - even then it is more like 2550 fps with the reloads. I set the overall length of the finished cartridge the same as the Remington Core-lokts.
So I just reloaded 3 sets of five using Reloder 15 - 42.5, 43.5, and 44.5 gr but haven't tried them yet. Also haven't tried Varget powder. Anyone reloaded for the AR in .308???
On the strictly accuracy side - I am set up to reload the 168 and 175 Sierra bullets for the .308 for the R5 Milspec, and 190 gr Sierra's for the .300 WM, but haven't started. The .300 does a nice job with Federal at 1,000 yds, but price per box is a bit spendy. Will try the .308 as well at that distance as so far I have only shot 600 yards with that caliber - but it is a little easier on the shoulder. So much to do, so little time it seems.....
Any comments on powder for the .300 WM reloading - I have a couple pounds of Reloder 22 to try?