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I just purchased a 338 win mag on gunbroker that arrived with a fair amount of rust in the bore. To make matters worse I found steelwool fibers and rotational scratches in the bore suggesting the previous owner tried to clean the rust out via steelwool on a rod or dowel chucked in a drill. There is not much pitting and the scratching will probably affect accuracy more than the rust would have. I was just wondering if anyone has had any luck getting a rifle to shoot well after they had rust in the bore. I have hand lapped the barrel with JB's but I can still see some scratches and minor pitting. I have not shot it yet so I don't know what to expect when I get to the range. Are there any firelapping kits for the 338? I may just have to rebarrel but any advise from folks who have experienced rust in the bore would be greatly appreciated.