I just converted one of my rifles from 5.56 to 6.8 with a Palmetto barrel and DPMS bolt. Barrel changes are easy for me because I have the proper tools, so the total conversion took less than 30 minutes.
Pmags are great. I have 2 kids deployed right now in Kandahar using Pmags daily. But, there are a lot of good mags out there.
1 in 7 is what the .mil uses. Good up to 62gr, possibly (depending on your barrel) 68gr. All my 5.56 rifles are 1 in 9.
Enfield .303 Accumulator/Collector
Proud Father of Two US Army Soldiers
Last edited by DougW; 10-02-2012 at 20:23..