I read the NRA cryo test, i beleive one gun went to
300 Below the other went to another treament company, both of the barrels on those guns were spent, that report was a waste of time and money end results were inconclusive.
I talked with 300Below some time ago about $$$ they do a lot of the highend barrels for the black gun maker Bushmaster. Maybe i need to go to the benchrest site for info. Thanks for the help Liking this www. site!!!