bolt x39
Hey Sweet,
Congrats on your CZ. I think a bolt x39mm chambered rifle is a dandy item and have the USA equivalent, a Ruger M77II.
My bolt rifle has not tasted any Com Bloc steel cased bi-metal ammo. For me, something about steel on steel /cases v. action, just doesn't riing true for a top end rifle, and so I reserve the cheap ammo for the AK and to a limited extent the Mini-30. Brass cased, domestic x39mm ammo is pretty common these days, more so than 15-20 yrs ago, and my bolt rifle gets the good stuff, and the Mini mostly too for that matter these days. I did shoot a good bit of Norinco and Wolf ammo throgh the Mini when I first got it, not so much anymore.
I have found that the com bloc stuff is pretty cruddy.
Regards bore/jacket fouling, you are aware that a patch with common cleaner, will NOT cut copper fouling? For that you need a bristle brush, and one of the copper fouling solvents so intended. The shooter who makes a box of shells last a season or two will not likely face a fouling problem soon, but a volume shooter will have to deal with jacket fouling . I've become a big fan of the foaming cleaners (intended for copper) and they have limited the amount I need to brush and JB (another mild abrasive cleaner) a bore.
I cannot say if a bi-metal slug fouls more or less than a standard copper jacket. If I see a lot of copper streaking at the muzzle, or accuracy starts to wane, I bare metal clean the rifle. I don't go this route every time, and some rifles need a few rounds to slick up. But heavy copper fouling will effect accuracy.
A lot depends on the rifle. Some bores are slicker than others. A Rem 700 ADL I have is a real shooter,...... for about 20 rds. Then the bore fouls and accuraccy deteriorates. I keep it cause its got some memories attached, and it is a shooter if kept bare metal clean.
A final word of warning. Be cautious of mixing odd lots of import ammo. Once upon a time I shot the Mini for 50-60 rds with what I thought was all non corrosive ammo. Steel cases, slug, it all looked the same. Unknown to me, a half dozen or so rounds of that lot was corrosive. I ran a patch through the bore, wiiped off the external surface and put the Mini away. A few days days later, I could not get the action open, the op rod had corroded onto the gas port! Some W-D and a few wacks with a leather mallet broke it loose, and it cleaned up OK. The bore was saved as I had given it a token cleaning before storeage. But it could have been bad.
You've got a dandy rifle there, take care of it and enjoy.
