Anybody have dimensions of the .38 Remington cartridge?

[texassako]

I know it almost made it into production with a M8 marked for it and a few cartridges floating around the collector circles. Anybody have the actual dimensions or specs of it?

[Hardrada55]

Short article about the .38 Remington with technical drawing of cartridge in issue no. 473 of the IAA journal.

[DWalt]

I was going to say the same thing. If you are not a paid-up IAA member, you probably won't be able to access that information, but the key dimensions are shown below (there are 2 different known examples of the cartridge, one of which is unheadstamped, one UMC). Bullet weights are given as 100 grains (maybe should be 200?) and 230 grains. There is a UMC dimensioned drawing shown, which is dated March 10, 1910. No ballistic information is provided. It seems very odd that, at that late date, someone believed that such a cartridge was viable, as any performance difference between it and the .35 Remington would have been insignificant.
HS: UMC None
Rim: . 455 .457
Head: . 454 .466
Shoulder: .439 .444
Neck: .400 .404
Bullet: .370 .370
Case Length: 1.916 1.954 (Note: Neck length of the un-headstamped case was longer)
OAL: 2.512 2.555
Weight: 405 grs 432 grs (cartridge weight)