bought what I thought was a 32-40. and is so marked on top of barrel. sluged the bore and it is not 32-40. best I can measure it is .337 and .317.  I have never had any dealing with re rifled barrels.  in need of some help with this.
thanks.  Dennis

Likely a .33-40 or .33-47 that many were done from .32-40's after rifling became weaker. It's an easy cartridge to load and shoot with, especially if used as a breech seated bullet. 
Best to begin by making up a .32-40 case with a few grains of fast pistol or shotgun powder, then filled with Cream of Wheat, and a wax plug over the end. Then fire form it, and check the dimensions to see if they still fall within .32-40 specs, or if the chamber was also increased in size.
Once you've determined the chamber you can simply make up a bunch more of the cases by fire forming and you'll have good cases. I have a Hepburn in .32-40, but rifling recut to .33 caliber, and I shoot a modified Saeco 740 mold bullet breech seated with a charged case behind it. The cases never see a reloading die as they never need anything more than cleaning, and new primers installed.

Check the twist of your barrel also as that will determine how long of a bullet you can use.

just checked twist rate.   15.5  to 16.  it will have to be breech seated a fired case still 32-40 size.
anyone have a  few bullets for sale?

jeffer1942 wrote on Jun 15^th, 2024 at 10:42am:


When ordering from Accurate, I almost always do a 2-cavity with another custom size variation or style of bullet. Its just a few bucks more than a single. I just wish Tom would start making smaller metplats. 

I would have to assume, that if his program was capable, he would make use of it. He must be aware that many people wish that it ( the program) or he would do so, myself included.

Send him a text or email. I'm sure he will provide an answer. Maybe not the one you would like.

As I understand it, Tom is now retired.