Muzzle of shotgun question

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JBeardNC

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I'm refinishing a CVA double barrel 12 gauge and I had to clean up the muzzles with a file.There were still a lot of machining marks on them. It left the crowns with very sharp edges. Does a thin shotgun barrel need a crown at the muzzle or should I just radius the edges over? Unrelated, but I was surprised to find that the case hardening on the tang is real and not chemically applied. Thanks for any tips.
 

Stumpkiller

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In my opinion it won't hurt anything to round the edges - al least a bit. You don't want to slice wads or cartridge paper when loading.
 

JBeardNC

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Thank you, that's what I was thinking as well, but was unsure.
 

ohio ramrod

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All you will need is just a piece of emery cloth and you thumb to break the sharp edge. Just put the emery cloth over the muzzle and rub it around with a circular motion with your thumb.
 

ord sgt

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If you have a screwhead that is larger than your bore, chuck the screw into a drill , then put a small piece of emery paper on your muzzle. Slowly turn the drill until all inner edges of the muzzle are smoothed.
 

JBeardNC

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Thanks guys, I had forgotten about using a brass bolt to crown one.
 

nhmoose

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For a 12 gauge that will be one big bolt made of brass to find not to mention expensive.

I have a brass tool made in my shop from a 1" round of brass, angled the front no idea the degree and turned a 3/8" shaft at the other end. Grinding compounded the front and turned it with a drill into the muzzle. It still needed some sandpaper on a thumb to make it nice and smooth entry for wads.

I will shoot a pic of it when I find it.
 
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