The range I use has 20 minute firing sessions, after 20mins, people are allowed to go check or place targets, and that usually takes about 6mins.... that is the only real cool down periods.
I wanted to see how the barrel could handle a little abuse, and How it would react ( accuracy wise to said firing schedule )
I did thoroughly clean the barrel prior to firing any ammo.
But, during the day I just fired ammo. Even at the end of the day the Criterion barrel would shot sub MOA 7rd groups with FGMM, so I am quite pleased.
I know Criterion recommends a better break in procedure, but I didn't do it.
Even without the break in... I am VERY happy with the consistent performance of the Criterion. I now have a quite accurate .308 AR for little money and effort.
I was comfortable with its already lapped bore... and was actually more concerned with its tighter chamber.
Prior to anymore firing I will thoroughly clean the barrel... and fire slower more methodical groups with the various ammo's that showed better accuracy promise.
I want to be able to enjoy the barrel without fear of abusing it. So in a nutshell... I fired it about as hard as it will ever see , and proved to myself it can handle it... and still produce repeatable accuracy from a MSR.
I also don't feel like I did any "damage" to the barrel with my firing schedule.... Heck that lousy grouping ZQI probably did more damage just from the wasted barrel life from even firing it ! Lol
