Springfield Armory's experimental cartridge conversion cylinder

[Bryan Austin]

I have been reading again and trying to bring together all this information. From what I find in Feb. 1868 Remington began modifying some .44s to shoot the .46 cal rimfire cartridge. Cylinder only holding 5 cartridges. By summer 1869 they were modifying the .44s to also shoot the .44 Martin centerfire and the .45 Remington centerfire cartridges. I also see where the Springfield Armory also modified the .44s buy using a .44 centerfire cartridge but fails to ID the cartridge manufacturer. This Springfield Armory conversion is the same method that R&D uses today chambered in 45 Colt.

My questions inquire about the measurements of the .44 Martin and the .45 Remington as well as does anyone know what .44 they are referring to when talking about the Springfield Armory cartridge?

My point is that I would like to use a custom case marked to a somewhat realistic marking. Was the .45 Remington the same as the 45 colt? Anyone have a pic of the headstamp?
What are the measurements of the .44 Martin and just for kicks, the .46 cal bullet mentioned.

Heck, while I am at it.....does anyone use Rapine's .44 Colt Conversion .451210 bullet mold or Rapine's .44 Colt Conversion hollow base.430210 bullet mold?


See what I am getting at?

[GunClick Rick]

I always hated math... Soory i couldn't be more help

[Sir Charles deMouton-Black]

I think I can respond to part of you questions.  The Springfield Armory cartridge is what we now know as .44 Colt, with the heeled bullet for .451 barrels.

"MARTIN" refers to the primer system initially used.  later manufacture, and most civilian production, used Boxer priming.

Both Colt and Remington attempted to leave the impression that their revolvers used THEIR proprietary cartridge.  In fact both .44 Colt & .44 Remington were interchangeable and so similar to the Springfield cartridge that differences were mainly in the minds of the publicity departments.  WHOOPS!  I've just read the thread linked below.  It appears that they may NOT be identical. Read the other thread.

Cartridges of the World, 3d Ed. doesn't refer to either .44 or .45 "Remington", as such.  There is a known Remington conversion revolver in .45 Colt, but there is little info known about how it came about.

Again COTW,3d does refer to several .46 RIMFIRE rounds.  The author lists 5 of them with similar diameters but varying lengths.  As I believe that the Remington rimfire cylinder was bored straight through, one might use what was available as long as the round fit the cylinder length.
bullet dia.   .454 - .456  (obviously heeled)
Straight case of .456 - 458
rim dia.   .530

As I haven't loaded any heeled bullets yet, I can't help.  I do have an NEI heeled mould, but the cylinder hasn't happened - yet!

[Fox Creek Kid]

http://www.cascity.com/forumhall/index.php/topic,18399.0.html

[Wolfgang]

Yur getting into some compleeerr-cated stuff thar pard . . .     And I presume having more and more and more FUN . . 

[Bryan Austin]

Yur getting into some compleeerr-cated stuff thar pard . . .     And I presume having more and more and more FUN . . 

Yeap...did I mention my brain hurts again?