Re: M21 help
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: kraigWY</div><div class="ubbcode-body">I don't know much about the Kreiger barrels. I've been shooting the Douglas Barrels for over 30 years on my Super Match M1A and differant NG Match M14s.
The military use to have some med heavy match barrels they put on the NM M14s and M-21s. They were 4 grove barrels and shoot the 174s (M118) pretty good. Used them when I went to AMU Sniper School and when I taught Sniper Schools for the Guard.
BUT: When we started mexican matching with 168 SMKs and later when they came out with the M852, we found we needed the 6 groove Douglas Barrels. The 6 groove barrels didn't shoot the 174s as good as the 4 grooves did. Back then supply being what it was we never knew if we were getting M118 or M852s, or how much money I could squeese out of the state to by 168s. I had to issue two rifles to my State Rifle team, The 4 groove military match barrel for M118 and the 6 Groove Douglas (Barnett) barrels for 852 or Mexican Match.
This was before the M118LRs came out. For 1000 yard service rifle matches I used state funds to buy 180 SMKs (the older 180s, not the 180s Serria puts out today). So we if we had M118s, we used the 4 groove military barrels for 1000 yard service rifle matches, If we could get the 180s we used the 6 Barnett (Douglas) barrels.
Again I don't know about the Kreiger barrels but if they are 4 groove, I would do some investigating before I made the choice. </div></div>
That's a very interesting story, for me having almost zero experience with M14's. I've shot Mex Match, M852, 118SB, 118LR, and 118NM; but, all from a 6 groove, 11.25 cut H-S Precision stainless 24 inch barrel. My conclusion was that the M118LR (pre pro lot A) was the most accurate factory loaded round I could take to the LR firing line. At 600 I could not distinguish between any of these rounds, except the SB, which prompted the notion for making up some Mex Match from those rounds.