357 Headstamp Info?

[bullseye308]

Found a bunch of 1X fired brass with the following headstamp:
12:00 BHA
10:00-6:00 357 MAG
7:00-2:00 PROOF
I am guessing proof loads? Some of the primers are flattened, some just have a nice big dimple in them. Anyone seen this headstamp before or have any info on it?

I'll see if I can get a pic uploaded.....

 

[ReloaderFred]

Walkalong sent me some of that brass. The BHA is Black Hills Ammunition, of Rapid City, SD. We're assuming they were proof loads for testing firearms, and the fired brass made into the supply system.

Hope this helps.

Fred

 

[bullseye308]

That's what I thought it would be. I just thought they would keep it in house due possible liability reasons or something. Just to be safe, I'll save it for 38+P loads and see how long it lasts. Thanks Fred.