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AR15.COM
1/23/2026 2:10:46 PM EDT
I grabbed a few boxes of ammo and headed for the range. The attendant used a magnet to ck for steel and was able to pick up the box with the magnet. The cases are brass but the magnet sticks to the bullets. What do I have?  

Joe
1/23/2026 2:16:32 PM EDT
[#1]
The jackets are mild steel with a copper wash. Somewhat common with some European ammo.
1/23/2026 2:36:58 PM EDT
[#2]
Quote History
Originally Posted By SSeric02:
The jackets are mild steel with a copper wash. Somewhat common with some European ammo.
View Quote
This, often referred to a "bi-metalic jacket".  Very common in ex combloc ammo facilities.

The bullet is lead core, jacketed in a mild, soft steel, and then washed with copper.  It's cheaper to make than an all copper jacket.  It's not dangerous to steel target and not armor piercing, but it will fail the "magnet test".
1/23/2026 2:52:53 PM EDT
[#3]
It’s how the range gets you to buy ammo from them.  And a huge crock of fecal matter.  It won’t make a dimple in their steel.
If life was easy nobody would quit.

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