.223/5.56 or 300 BO for varmits?

[SAWMAN]

5.56X45 . . . 1:7 . . . 24" . . . chrome moly bbl. --- SAWMAN

 

[Rebel_Rider1969]

So your shooting 5.56 ammo. with that 1:7 the bullets must explode when they hit. You must have one of those cryo barrels I've been reading about.

 

[SAWMAN]

Still got the box top . . will check on the bbl today. The upper came COMPLETE from PSA about 1 1/2 years ago.
Trying to sight it in was a nightmare . . UNTIL . . I noticed that the gas block was extremely close to touching the forearm. So close that I suspected that they came together during recoil.
I shaved it a bit and now it is a " just under" MOA upper.
I also added a NiB BCG and double eared charging handle. Removed the A2 style brake also. ---- SAWMAN

 

[SAWMAN]

Box top just states "Nitride" . . . Assume treated,but chrome only. ---- SAWMAN