Scaling down a barrel

[Elnathan]

Any particular way of doing this? I'm getting ready to order a custom barrel based on an original that has that very pronounced flair at the breech that some German-style barrels have. Unfortunately, it is a .62 caliber with a breech around 1 7/32, and I want something around a fifty caliber. I was thinking of reducing the breech to about  1.125, but don't want to get too thin at the waist.

I've thought about just copying the dimensions of a suitable C weight barrel off of Rice's webpage and adding in the flair at the breech to get to 1.125, not sure how that would work regarding balance, though.

I do think that I'd like a bit of weight at the muzzle.

[smallpatch]

What you've got to find is a custom barrel.
Do you have the dimensions of the original barrel?
If you do, any of the custom barrel makers can scale to those dimensions, and tell you what they will allow for bore size.
Charles Burton has built a couple of odd ones for me.

[rich pierce]

An important dimension is that the barrel thickness at rear sight should be equal to thickness at front sight or thickness at rear sight not more than 1/16" greater than thickness at front sight. Otherwise you may have trouble with getting the ball on paper without seriously modifying the height of one sight or the other. I've found this to be a problem with octagon to round rifle barrels.

[Telgan]

Talk to Jason at Rice. He has some custom profiles that may be quite close to what you are looking for

[D. Taylor Sapergia]

I thought you meant removing browning scale ... for a matte finish, I use a roll of canvas and scrub lengthwise after every application has rusted.  For a polished brown, I use four ought steel wool.

[jerrywh]

Aall you need to do is figure the percentage and figure everything to that percent. 

[jerrywh]

existing original 1 7/32 = 1.218          1.125 desired breech
1.125  divided by 1.218 =  92.3%     
Make the gun 92.3%   If your really scaling down the gun that will include the lock and fittings.  Keep us posted of your progress.

[Elnathan]

existing original 1 7/32 = 1.218          1.125 desired breech
1.125  divided by 1.218 =  92.3%     
Make the gun 92.3%   If your really scaling down the gun that will include the lock and fittings.  Keep us posted of your progress.

That was pretty much the first thing I thought of, but figured that since I was working with volume it had to be more difficult than that. 

The lock is about the same size as the original, the fittings will be scaled to fit, but the draw-length can't be scaled down and still fit me. So, not an exact copy, but similar (I hope!)