Would y'all have fired this ammo ?

[cmshoot]

Being US military issue Remington .45acp, I kinda doubt it. Didn't say so on the box.

US military .45ACP ammo was corrosive up until July, 1954. Your ammo could easily be corrosively primed.

 

[Mark IV]

US military .45ACP ammo was corrosive up until July, 1954. Your ammo could easily be corrosively primed.

Good point, thanks for the solid info. I checked the headstamps (RA61) and did some digging around, and apparantly this stuff was made in 1961 (so I should still have some rifling in the bore ).

 

[cmshoot]

Good point, thanks for the solid info. I checked the headstamps (RA61) and did some digging around, and apparantly this stuff was made in 1961 (so I should still have some rifling in the bore ).

Yep, you're good to go! Remington Arms, 1961, by that headstamp.