Nofun: The bolt will smooth up. I just worked mine several hundred times while watching television, put it up,l did the same thing a few nights later, put it up, and did it some more. While some can be a bit on the rough side, I found that my CZs have been no more rough cycling than Rugers or even Remingtons. Maybe I was lucky. As far as the trigger, I have mine adjusted to break clean with no creep and no overtravel at 3-pounds. Read your manual. It tells you how to do it. You have one screw for trigger pull adjustment, another screw to adjust creep, and another to adjust after-travel. I have not touched the one to adjust the set trigger because it was good where it was at, about 12 ounces. I haven't put a gage on how much force it takes to push the trigger forward to put the rifle in the set position. It is certainly more than it takes to fire the rifle, that's for certain. As far as the cleaning, I got a bunch of crap out of my berrel as well, but mine was like brown. I checked to make sure it wasn't rusted. It wasn't, but damn, there was a bunch of that stuff in the barrel. As far as your 1.6 inch group, I wouldn't put too much stock in those test targets. The one I got with my CZ 550 American in 7x57mm showed a test of 1.20 inches or so. After glassbedding and making sure the barrel was freefloated and with proper handloads, it will shoot three bullets into a group less than a half inch at 100 yards. One thing for certain, make sure your action screws are tight, that when you mount your scope that the rings are tight and snug, and that the ring screws are tight. Get some good loads and have fun with your new rifle. As a matter of rule I glassbed all my rifles. The barrels on the CZ 550s are supposed to be freefloated. Make sure your rifle barrel is freefloated. I like to have mine where two or three dollar bills will slide without hesitation from the end of the barrel channel right up to the glassbedding, or, in your case, up the front of the receiver ring. good luck. Tom Purdom
