I put a 18" AR10 together in 308 just in time for deer season this year. Tested 125 grain Sierra Tipped Matchkings and 178 Hornady ELDX. Both shot awesome with XBR8208, got drops and group test out to 500 yards with the 125s and out to 900 yards with the 178s. Then went on to test them on whitetail deer this year.
Both bullets were impressive on MS whitetails.
125s didnt disappoint one bit. 75 yards to 465 yards. None exited and no tracking required on any of them
178s did about like expected which was good. 125-450 was the shots taken with them. Only had to track one but it was my fault.
