What's the "70" in 45-70??

[Turtle]

Mornin'...

What's the "70" represent in the 45/70?  Is that the amount of powder or back in the day was the amount of powder??

I read some where what it stands for but can't seem to locate it and would appreciate your help.

Thanks.

-Turtle-

[Cottonwood]

What's the "70" represent in the 45/70?  Is that the amount of powder or back in the day was the amount of powder??

Yep, by volume it would hold 70.0-gr of BP.  So in times of yester-year a loading was 45-70-405 or 45-70-500 etc to reflect caliber, powder load and bullet grain wt.

[Aardvark]

 This is true, but how did the 38-40 get its name?

[Leverdude]

This is true, but how did the 38-40 get its name?

Same way. As did 44/40, 32/40, 38/55, 32/20 ect, ect.  Was a much simpler world for sure.

[Aardvark]

 I agree but the 38-40 is a 40 caliber.

[Coyote Hunter]

Same way. As did 44/40, 32/40, 38/55, 32/20 ect, ect.  Was a much simpler world for sure.

No, it wasn't.  There were a lot of cartridges that were confusing.

[Keith L]

Same way. As did 44/40, 32/40, 38/55, 32/20 ect, ect.  Was a much simpler world for sure.

No, it wasn't.  There were a lot of cartridges that were confusing.

Huh?

[Cottonwood]

Same way. As did 44/40, 32/40, 38/55, 32/20 ect, ect.  Was a much simpler world for sure.

No, it wasn't.  There were a lot of cartridges that were confusing.

Huh?

Here is the 38-40 WCF, it appears that the bullet dia for the 38-40 is .401 dia



Here is a 44-40 Winchester were the bullet is .427 dia


Here is a 32-20


Here is the 38-55

[Aardvark]

I know it to be true because I own one and reload for it..I use 10mm pistol bullets 190gr flat nose...It should have been called the 40-40..