Hello, I have a 6mm creedmoore, I have been shooting competitively with this rifle for the past year. I'm not shooting very hot loads however I checked my Barrel with a borescope and found that I have fire cracking. Wondering what to do at this point. The barrel has been one of the lucky barrels that although its a factory barrel it's been shooting very small groups in the past until just recently. Can this Barrel be fixed or saved? The other question is what do you do to prevent it in the future? I started off shooting it with Factory Hornady 108 grn match for about 300 rounds and hand loads for the last 150. Both rounds aren't loaded hot. Factory rounds 2950 fps and my hand loads about the same with 40.9 grn H4340. I purchased a new barrel for it but use this in the factory class and would like to continue shooting this in that class. The other Barrel is a Krieger which would be considered aftermarket so it wouldn't be allowed. Any advice on the topic of Fire cracking would be of help.