I have a 32-20 cartridge that has a headstamp of WRA Co. CLMR. Can anyone explain the CLMR. I think that it may stand for Colt Lightening Magazine Rifle, but I'm not sure.

Sendaro

You nailed it.

You may also find 32-20 cartridges headstamped 32 W HV M92 for the Winchester High Velocity Model 92.

So, corporate logos on football and baseball fields isn't exactly a new marketing idea.

Ray