GUNN said:
Will a tikka tac in .308 be able to hit accurately at 800? It's a 20" barrel, so I'm a little skeptical, as I'm sure the shorter barrel causes it to lose velocity. ?
Yep, 20" will do just fine at 800, more drift, more drop, but not a problem. Believe me, use the 154gr Scenar though, with this bullet 20" will reach to 1000 IMO (checking this out later this month). The 154gr Scenar is my 'gift from the gods' for .308. The light weights allows high velocity, but the BC of .500 keeps it alive far down range. In a short barrel, .308 is actually not a bad choice, it's the only setup I
choose .308 in. Reason is simple; physics, with an emphasis on hydraulics. The relatively large base diameter of the .308" projos allows for decent velocity to be attained in short pipes. 7mm-08, .260 both should have longer tubes to be at their prime.
This is why a 150gr .308 is always faster than a 150gr 7mm. I'm a 7mm fan, my favorite bore, but my short barreled rig is wearing a .308 Win snout for these reasons. Honestly, with the 154gr Scenar, 7mm-08 can't keep up to the .308 in a 20" barrel at long range, IMO.