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Joined: Feb 2002
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Joined: Feb 2002
Posts: 360
This problem is with a custom PacNor .458 barreled smokeless muzzle loader. Bullets
have to be sized to have no resistance at the muzzle in order to push them down to
the tighter breach end of the barrel. Even at that, carbon builds to the point the
barrel has to be cleaned after very few shots in order to again get the bullet to the
powder charge.

Suggestions?

I believe that SOMEHOW the breach end needs to be lapped in a way that does not
enlarge the bore diameter of the muzzle. What method could one go about to do that?


We should change our politicians
like we change dirty diapers....
and for the same reason.
BP-B2

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If'n it were me, I'd be takin' this up with Pac-Nor.


I never thought I'd grow up to be a grumpy old man, but I did, and I'm killin' it.
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Be careful, the last two times I sent barrels back to Pac-Nor for that same reason (centerfires tho) they would not stand behind them. I haven't bought one from them since.


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Originally Posted by Jkob
Be careful, the last two times I sent barrels back to Pac-Nor for that same reason (centerfires tho) they would not stand behind them. I haven't bought one from them since.


I have had this problem before also. No purchase since 2005.

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If no luck with Pac Nor then the lead slug lapping can work if done properly. It will remove more material from the tight spots than the loose. Read up on it or have a pro do it. It was common practice to do this on muzzle loaders to "freshen" the bore. This is why you see some odd ball calibers as the bore will increase slightly with each lap job.


"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli
IC B2


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