Originally Posted By: mnshortdraw
Easy now guys, don't insult him. Not everyone knows what to do and what not to do. He just isn't getting very good advice. I think what the person who made the contraption pictured had in mind is to use lapping or polishing compound to smooth out any burrs in the chamber. Not the best idea but it's not going to make it blow up or anything.
If you have ever lapped an engine valve, then you know exactly what this "thing" will do - it will sand blast the chamber, shoulder, and neck!!
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What the owner needs to do is have a gunsmith look it over, maybe getting a borescope involved. Shouldn't be more than a few minutes work to make sure everything is proper and a minimum charge. On occasion, a chamber reamer leaves a burr and it needs to be honed out.
A chamber reamer cannot leave a burr - they can leave chatter, but that's all...
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Preferably by a gunsmith instead of someone who doesn't have the right equipment or technique. I had a burr in my exctractor cut on one of my custom barrels that I polished out with a brass rod and lapping compound and it proved to be one of my most accurate barrels ever. It happens and is not a big deal to someone who knows what they are doing.
He is not suffering from a burr in an extractor cut.
He is suffering from buying handloads from an idiot.
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