I have a hammer for a long-range muzzleloader that I want to checker using a checkering file. The spur has a complex set of curves that make it difficult to imagine how to jig up something that would serve as a fence or guide for the file and freehanding it just doesn't seem to be too promising, esp. as a first attempt.

Does anyone have any experience with this? Let me rephrase this, probably 2-3 dozen of you have done this a hundred times. I'd really appreciate knowing how you do it. I could make up something but reinventing a wheel that might be only half as good as something tried and true seems like a folly. Any suggestions would be really welcome.

Thanks.

Last edited by BrentD; 03/20/15 11:00 PM.
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BrentD, (Professor - just for Stan)
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