Back up with questions. The Hammerali is long gone and considering putting together a 22lr upper. Lots of 22lr ammo.
How bad is fast twist 556 barrel for doing this? 2" at 50 yards maybe, or should I be adding a 22lr barrel? if using a 556 barrel, shorter or longer makes sense?
The CMCG Bravo kits are just drop in simple? Hmmm.
I tested a CMMG drop-in adaptor at 50 yards, using a 14.7" 1/7 chrome-lined 5.56 barrel. at 50 yards I got 1.5" with Fed Tgt, 2.0" with 60gr Aguila subsonic, 3.0" with CCI Velocitor.
I've been meaning to try it in a 1/9 no-chrome barrel, haven't gotten around to it yet,
Pics and details in this post I put up a while back,
https://www.24hourcampfire.com/ubbt.../13764559/cmmg-22lr-adaptor#Post13764559
