Anyone load for 44 Merwin-Hulbert?

[mazo kid]

A friend and I have M-H revolvers in their proprietary 44 M-H cartridge. Seems there is a lot of leeway in dimensions. Some say it is a lengthened 44 S&W American, but numbers still do not match. So what are you using to form/load this elusive cartridge? TIA.

[Grapeshot]

IIRC, I think I read in "US Cartridges and their Handguns", that the .44 MH is similar to the .44 Colt or .44 Remington. Not having any experience with the .44MH I can only tell you what I read about it.

If you can fit a .44 Special case into the chamber for more than half it's length you might be able to use the .44 Russian or the newer made .44 Colt cases in it.

[bydand]

Depends on which vintage M&H you have. While they all will accept a 44-40 case, there is a difference in bullet diameters between 44 Winchester and 44-40.
I have a pair. One will accept 44-40 but the other earlier one (44 winchester) needs the bullets swaged down a few thousanths. bought a bullet swaging die from Lee
I assume you initialy tried a loaded round in the cylinder and found it would only go in half way.

[mazo kid]

Depends on which vintage M&H you have. While they all will accept a 44-40 case, there is a difference in bullet diameters between 44 Winchester and 44-40.
I have a pair. One will accept 44-40 but the other earlier one (44 winchester) needs the bullets swaged down a few thousanths. bought a bullet swaging die from Lee
I assume you initialy tried a loaded round in the cylinder and found it would only go in half way.
I misspoke; mine IS a 44-40 caliber and chambers them just fine. My friend's is the proprietary 44 Merwin-Hulbert. Is this what you are referring to when you say 44 Winchester? He is going to make a chamber cast of the cylinder so we will have something positive to compare to. Unfortunately, he is 1200 miles away!

[Grapeshot]

I misspoke; mine IS a 44-40 caliber and chambers them just fine. My friend's is the proprietary 44 Merwin-Hulbert. Is this what you are referring to when you say 44 Winchester? He is going to make a chamber cast of the cylinder so we will have something positive to compare to. Unfortunately, he is 1200 miles away!

Merwin-Hulbert would mark their revolvers that were chambered for the .44-40, a.k.a. .44 Winchester Central Fire (WCF) as .44 Winchester. Do not know why, never found out that bit of information, and the only reason I know this, is I read it in Mike Ventorino's book "Shooting Six Guns of the Old West". Enjoy your treasures.