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Post by ChiefTJS on Jun 20, 2012 11:32:04 GMT -5
Howdy,
I was emailing with a gunsmith and he said he always puts a 45 degree crown on revolvers. I haven't replied yet and I have no reason to doubt him,
Just curious if this is a standard for crowns or not? I've never studied up on crowns, so I don't have a knowledge base to draw from. Thanks for any help.
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dmize
.401 Bobcat
Posts: 2,825
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Post by dmize on Jun 20, 2012 12:34:12 GMT -5
Im not a gunsmith but from my "studies" The main importance of the crown is that it the exit point of the barrel,the edge of the hole,has to be uniform. Now I believe the actual crown protects this edge, so it could be rolled like a Marlin 22,recessed like a BFR or cut at any angle desired as long as the interior edge is below the exterior edge.
I believe it comes down to the "Smith. If he is using a crown reamer he does what the tool cuts,if he has the barrel off and has a lathe,the limit is his imagination.
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shorty500
.327 Meteor
too many dirty harry movies created me!
Posts: 912
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Post by shorty500 on Jun 20, 2012 17:41:43 GMT -5
i prefer a 90 degree crown counterbored into muzzle about .500 to .600 depending on bore size by .1 deep then break corners inside and out with roughly a .030x45 degree chamfer
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Post by ChiefTJS on Jun 20, 2012 19:52:47 GMT -5
I'm with you dmize, I was always of the opinion that the crown didn't matter as long as it was uniform. The gun in question (GP-100) has never given me any reason to believe the crown was off. I'm gonna give the fellow a call tomorrow and discuss it. I'll report back what I learn.
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Post by dlhredfoxx on Jun 25, 2012 12:01:35 GMT -5
Reeder does what looks to be a 45 degree crown...
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Post by ChiefTJS on Jun 26, 2012 10:47:41 GMT -5
Been tryin to get ahold of this fellow so we could chat.
I was hoping to learn something from him. I'll keep trying.
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