Well i have had it for 5 years. Not sure of the bullet count, but it see's quite a bit of shooting, 6-800 a year, maybe? Mostly a coyote/ varmit/ with some target practice shooting. I did have a post here earlier with the problems.
But long story short. I shot it and it did alot of keyholing, and my buddy could see a smoke trail to the target at 100yds. The loads have been 30, 35 gr berger's with the 35's at max. 32 gr noslers at 28.8gr of h4895. All the upper end of the load data. All shot real good. Then i seemed to miss my varmits more than normal.
Was running out of the 32's so went to sight in the 35's and they key holed. Some guys thought dirty/ copper. So clean real good, same key holes. Cleaned again with good copper solvent and a brass brush. Then shot some 30's. None keyholed, but wasn't accurate. Shot them a little and went back to cleaning, then today shot some 35's again.
First 3 out of a cold clean barrel were 2-3in groups. Then the next four were touching. Then the next 7 were all over, again 3-4in group with a couple that seemed to be partly keyholed. Got mad and quit.
I did check the stock and seemed to be floated. Going to have it checked out to be sure, but one guy i talked to said it sounded like the throat was getting bad.
What would make the smoke trail to the target??? My buddy tried a couple in his and he didn't have any smoke.