I just got my 6mm Creedmoor barrel installed on my GRS stock rifle. The OEM in 6.5mm Creedmoor just looked too scary inside and it just wouldn't shoot better than 2 moa, so I decided to get something different. Since I have a bunch of 6.5 Lapua brass and a large number of long range 6mm bullets, I decided to make a switch.

I was wondering what your break in procedure is for the Criterion barrels. On one of their FAQs, they say that brushes don't have much value but recommend cleaning after every shot with patches and copper remover till copper fouling is reduced. Do you follow their recommendations or have a different method? How many shots do you clean after each, typically?I will say, that new barrel is a thing of beauty. I got the precision lug, nut and action wrench from NSS and it's all first rate kit. What a difference between this new stuff and factory.