Thread: Tikka T3X barrel break-in

I did notice an important reduction in copper fouling after the first 40 rounds in my new Hardy barrel. I just followed my gunsmith process: 10 passes with Boretech eliminator on a brush (I used a nylon non indicating brush) followed by dry patches until clean, this every 5 rounds for the first 50 rounds. It was quite obvious the copper fouling decreased through the whole process to become insignificant around 40 rounds. My gunsmith told me no matter how good the chambering is, it always leave some tiny tiny burr that collect copper on first rounds. Those first rounds at the same time remove those burrs.

That said I haven’t done it on my old Tikka 6.5cm with a factory barrel, it shoot one rag hole, minor copper fouling