Annealing: Why Your Mil-Surp Ammo Brass Looks Weird By Chris @ luckygunner.com
Have you ever bought rifle ammo and noticed discoloration around the case neck? Other shooters frequently ask us about that burned or almost “charred” look that some ammunition has. The concern is understandable, since you likely don’t see that burned look on every batch of ammo you purchase.
But there is no cause for concern. That discoloration comes from heat applied directly to the case neck and shoulder and it’s a normal part of the ammunition manufacturing process. This process is called annealing, and whether or not you can visibly see evidence of it on your new ammo, all bottleneck style brass rifle cases are annealed before being shipped to the customer.
Check out the video for more and to get an inside look inside the annealing process. The folks at Hornady were kind enough to let us behind the scenes to capture some video of their manufacturing process so we could help shooters learn a little bit more about what goes into producing their world-class ammunition.
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