Oct 24, 2020 · WMA is the headstamp on Winchester's Service Grade ammo line. The "20" would indicate this batch was made in 2020. _____

Jun 26, 2023 · WMA designates Winchester Military Ammunition, made at their Oxford Mississippi plant. The quartered circle indicates the ammunition is NATO standard. The cartridge was loaded in 2020. If you would simply have "Googled" WMA Headstamp you would have found this out in less than one second search time!

Codes are listed by number codes, then in alphabetical order from A to Z, followed by a list of suspect codes at the end. *Note 1- Headstamps often contain multiple pieces of information. The maker is almost always identified. Military ammunition usually includes date information, and civilian ammunition often has caliber information.

Aug 17, 2018 · WMA is apparently stands for Winchester Military Ammo and is used exclusively by their Oxford, Mississippi, plant. Which is somewhat odd, given that .40 S&W isn't a military cartridge. My guess is that they load it at the plant between military contracts and simply use the headstamp to designate manufacture location.

Oct 10, 2015 · Winchester brass has WCC, WMA or 9mm Luger head stamps. If it also has a cross inside of a circle it designates it as NATO load. Without the cross it is simply a standard commercial load.

Apr 7, 2014 · Yesterday I purchased a box of 100 Winchester 9mm Luger, 115grain, FMJ bullets. On the bottom of each casting I read "WMA", what appears to be a trademark symbol, and the number 14. I'm just curious as to why it doesn't say "9mm". Other brands that I have do state that they are 9mm. I would appreciate an explanation. Thanks.

Oct 25, 2022 · Headstamp is WMA, 20, and a circle with cross. Is this military? are the primers crimped? Seems like good brass but there appears to be a bit of crimp ring on the primer.

Apr 5, 2021 · This head stamp means Winchester Military Ammo 21 is primed/manufactured in the year 2021. It's also got a more aggressively crimped primer pocket, which is usually indicative of military spec ammo. Got a box "Winchester 9mm 115-Grain FMJ" with one WMA 21. What is this? Did I win a lottery?

Nov 27, 2022 · It looks like an M80 ball round (7.62x51 NATO). It has the NATO cross-circle stamp, and WMA, which I believe makes it Winchester Military Ammunition.

All Auctions are conducted in Pacific Time. 3 count of 9mm brass once-fired cartridge cases. I found these in with a bunch of old once-fired 30-06 cases -- I know they are older than 2020 as my husband did not buy any ammunition in many years. The …