Well I was bored with my 16 inch 6.8mm SPC Stag Carbine a year back and have not shot it at all since then. I worked up all sorts of load data and that was about it. It is OK for deer and caribou, but only at a limited range.
I put it up for sale for awhile but no takers...
SO..... I figured I could make up some more loading experiments and maybe make it have a little more zap if I went with a longer barrel... maybe an 18 or 20 inch....
But then I found out that Black Hole Weaponry makes a 24 inch barrel with polygonal rifling.... and in a 1 in 11 twist rate.
I called them up and a few days later my barrel was in the mail. It is a stainless, 24 inch standard profile, target crown.
Now I need to get a long hand-guard, a new gas block (since mine is the front sight mil-type), and a new longer gas tube.
Any thoughts from you AR junkies...???