Remington BP Revolver Forcing Cone

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cove posted this 2 weeks ago

I am going to be sending my Uberti 36 cal Remington revolver off to have a red dot sight base installed.  This is a project gun that I have been working with, see TFS#263, so I figured that while it was at the gunsmiths, I might as well have the forcing cone recut.  A cerrosafe casting shows the existing cone is 18 degrees and 0.19 inches deep.  I only shoot wadcutters in this revolver so was going to go with 11 degrees.  My question is: would 6 degrees be a better choice?

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Ed Harris posted this 2 weeks ago

For wadcutters only, yes!

73 de KE4SKY In Home Mix We Trust From the Home of Ed's Red in "Almost Heaven" West Virginia

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cove posted this 2 weeks ago

Ed: Thanks for the comeback. I got the idea from your comments in the "Revolver Accuracy"  article in TFS#211.  I guess my only reservation would stem from your comment: "---with perfect timing---". The Uberti's are well made but perfect timing may be a bit much to ask.  That being said, would it be safer to go with 11 degrees?  

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Ed Harris posted this 2 weeks ago

The 11 degree cone is an improvement from the 18-degree for sure.  If it turns out not to be to your liking you could always go to 6 degrees later without enlarging the base diameter of the cone entrance.

73 de KE4SKY In Home Mix We Trust From the Home of Ed's Red in "Almost Heaven" West Virginia

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Ken Campbell Iowa posted this 2 weeks ago

strictly speaking, the angle of the cone doesn't change the diameter of the opening of the cone.

confessing that i am not much of a pistol guy, i do surmise that the cone entrance should be a hair bigger than the misalignment of the worst cylinder.

*****************

my only adventure with this was with my m15 Dan Wesson that shot great but spit lead ... easy to work on the removeable barrel, so i taper reamed the cone a couple thousandths larger  ... still spit so it was either weld and grind the timing, or sell it ... the guy that bot it loved it ...  

not to knock the M15 DW; my wife has a 22rf 8 inch jewel ... and it doesn't spit lead ! ...

ken

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cove posted this 2 weeks ago

I must admit that when I drew a 6 degree included angle, it was intimidating, as the length of the forcing cone became quite long.  I think I will take a conservative approach and go with 11 degrees since as Ed said, I can always go to 6 degrees at a later date.  Thanks guys for the comments, there are no other cast bullet shooters or experimenters around here, so I appreciate input on the questions this hobby continually produces.  Bill 

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tony1960 posted this 2 weeks ago

Don't panic with the length of the forcing cone, if you take a good look at a Manhurin target revolver you can almost get a 38 HBWC or the 32 variant the entire depth of the cone before it hits rifling. Shot like no other gun I've ever owned, wish I could afford another.

 

Tony

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cove posted this 2 weeks ago

Tony:  You guys have convinced me.  Your comments reinforce Ed's on the 6 degree cone when using WC's.  I guess if I want to see the potential of the revolver I should go for the optimal set-up.  Again, thanks guys for helping me with this decision. Now I need to look up Manhurin target revolver. Sounds interesting - Bill

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