Found at my own fields

[aurichnet]

Hello,
I found some cadriges at my own fields, I think these are Cal. 50. These are market SM 43, what does that mean?

I yust saw this heavy M G for sale: http://www.militaria321.com

I think my cadriges were used for this M G type?

=================================

Hello again, you are right, my mistake: It is SL 43, what does that mean?

<a href="http://www.bilder-hochladen.net/files/osu-10-jpg.html"><img src="http://www.bilder-hochladen.net/files/thumbs/osu-10.jpg" border=0></a>

[Gene]

That MG is indeed a .50 caliber that came out of an airplane, likely a fighter. I don't know what SM stands for but it is the manufacturing plant that made the ammo, and of course 43 is the year.

[scotty1418]

do you mean SMG (sub-machine gun)?

[jacobtowne]

There is no SM that I can find for U.S. cartridge makers during WWII. Are you sure it's not LM?
JT

[aurichnet]

Hello, no idea what SL 43 means?

[rogerbh]

St Louis Ordnance plant

http://www.cartridgecollectors.org/ww2usmfrs/index.htm