In, I'm new as well, trying to find the best source for a complete upper. I have a RRA 5.56, and want to expand it to be able to reliably take deer and hogs with the 6.8. It's clearly a MUCH better round than the 6.5 groupies will admit.
Best length barrel, best bullet weights, and scopes?
With 12.5” 27.2gr a2200, 2369 mv 120 sst
18” a2200 27.2 a2200, 2503 mv 120 sst
using new brass, i think 30 sd if i remember
sized 27.4-5gr a2200 2444 on 12.5”, and 2564 on 18” with 120 sst.
Per strelock-pro, sst should open up to 300 and 350 yards with 27.2 gr on 120sst.
I am a new reloader, and stocked up on sst after taking game this season. Just sharing my experience. good luck.
LPVO on 12.5, and 18”
pulsar trail on 12.5 with side dot