1875 caliber identification

[gregorys]

I have a first type blued 1875 revolver s/n 425. It has no caliber markings but since the grips are
a bit different than the standard configuration they may be replacements. Can anyone
help me to determine the correct caliber. The cylinder does fit a 44-40, but since I
do not know the dimensions of the 44 Remington I'm not sure that it wouldn't fit just as well.
The OD at the rear of the cylinder measures .472-.475. The OD at the front measures
.450-.452. The rear of the barrel measures ~.441 while at the muzzle the OD measured from
land to groove is ~.435. The cylinder does not have the shallow counter bore for the
cartride rim that I've seen in some photos. I can send a photo if the above info is not enough.
Thanks in advance for any assistance...
Greg

[Mike Strietbeck]

.44 Remington Cartridge Specs
Mike Strietbeck
Remington Society of America
mammothinc@aol.com

A. Rim Thickness............0.033"
B. Case Length..............1.055"
C. Overall Length...........1.536"
D. Rim Diameter.............0.477"
E. Case Head Diameter.......0.448"
F. Case Mouth Diameter......0.445"
G. Bullet Diameter..........0.445"