Proper sizing for a revolver?

Take total control of your projectiles by casting your own!
Post Reply
Oz judge
Posts: 52
Joined: 14 Apr 2017 01:58
Location: Oz
Has thanked: 2 times
Been thanked: 6 times

Proper sizing for a revolver?

Post by Oz judge »

My circuit judge has very oversized chambers 3x 456 & 2x 455 . But the barrel is right on at .451-.452 . I now have moulds of .452 , 454, 456, 457 & 4585" I have 2x Lee 454 sizers one in case I have to hone one out to 455 & I can get a Lee 457 . I don't know what size to size my bullets too. I have hi-tek bullet coating from oz or I'll powder coat. I really wanted to use the Lee 255 rnfp pb at 10.5 bhn & my 251gr cbe hppb @ 1050-1100 fps. How much can bullets of 10.5-13 bhn be sized down by the forcing cone / barrel ? my delema is best compromise of cylinder sealing & bullet swaging . Any advice ?
User avatar
Ranch Dog
Site Admin
Site Admin
Posts: 9398
Joined: 23 Jan 2012 07:44
Location: Inez, TX
Has thanked: 1837 times
Been thanked: 2281 times

Re: Proper sizing for a revolver?

Post by Ranch Dog »

What I've never understood is that Rossi makes a great revolver, but it is almost like a different outfit that never has built a revolver produces the CJ.
Michael
Image
User avatar
mr surveyor
1000 Shots
1000 Shots
Posts: 1608
Joined: 16 Mar 2013 11:20
Location: NE Texas
Has thanked: 486 times
Been thanked: 292 times

Re: Proper sizing for a revolver?

Post by mr surveyor »

I'm going to take a guess ... under the given circumstances I believe I would run them through the .454 sizer. Seems to be the best average between the two, and hopefully there won't be too much pressure loss (or leading) due to the oversized chamber throats. They may be somewhat tight then going into the barrel, but the softer bhn bullet should be able to size down to fit.

just my uneducated guesstimate :)


jd
-----------------------------------------------------------------------------------------
Guns - They aren't really yours until you void the warranty!
User avatar
GasGuzzler
Moderator
Moderator
Posts: 2745
Joined: 02 Nov 2015 19:54
Location: Cooke County, TX
Has thanked: 310 times
Been thanked: 451 times

Re: Proper sizing for a revolver?

Post by GasGuzzler »

I'm guessing you can't get a different cylinder that might be made properly or at least tight on all chambers.
__________________________________________________________________________________________
I've always been crazy but it's kept me from going insane.
User avatar
Ranch Dog
Site Admin
Site Admin
Posts: 9398
Joined: 23 Jan 2012 07:44
Location: Inez, TX
Has thanked: 1837 times
Been thanked: 2281 times

Re: Proper sizing for a revolver?

Post by Ranch Dog »

At one time and with circumstances as posted, a revolver cylinder would have been "sleeved" to the cartridge's spec.
Michael
Image
User avatar
mr surveyor
1000 Shots
1000 Shots
Posts: 1608
Joined: 16 Mar 2013 11:20
Location: NE Texas
Has thanked: 486 times
Been thanked: 292 times

Re: Proper sizing for a revolver?

Post by mr surveyor »

Ranch Dog wrote:At one time and with circumstances as posted, a revolver cylinder would have been "sleeved" to the cartridge's spec.


yes, but doesn't that require the finesse and artfulness of a professional, hand's-on machinist? Are we still making those? :roll:


jd
-----------------------------------------------------------------------------------------
Guns - They aren't really yours until you void the warranty!
User avatar
Ranch Dog
Site Admin
Site Admin
Posts: 9398
Joined: 23 Jan 2012 07:44
Location: Inez, TX
Has thanked: 1837 times
Been thanked: 2281 times

Re: Proper sizing for a revolver?

Post by Ranch Dog »

I was going to make a comment about that, with the same line of thought.
Michael
Image
runfiverun
Founding Member
Founding Member
Posts: 274
Joined: 30 Jan 2012 23:04
Location: soda springs Idajo
Been thanked: 51 times

Re: Proper sizing for a revolver?

Post by runfiverun »

I would size to 456. [and probably 457]
yeah it sounds wrong but squeezing down a bullet straight versus slamming one forward crooked might help you shoot groups instead of mimicking the 410 shells that most guys end up sticking with.
if it were mine and i was going to shoot 45's in it I would pull the cylinder off and send it out to have the throats cut to the same [largest] diameter.
Post Reply