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Old October 5, 2012, 12:24 PM   #9
Senior Member
Join Date: June 16, 2008
Location: Wyoming
Posts: 9,930
The US military has used bi-metal jackets in 30 caliber bullets off and on over the years. I would not worry.
The US Military has more money for replacin barrels then I do.

I ain't putting that crap in any of my guns.

Barrels and chambers are relatively soft. Brass/copper/lead is softer yet.

Steel is harder,

Which one is gonna cause the most wear?????

To each his own, but I think too much of my guns to shoot steel bullets or steel cases.
Kraig Stuart
USAMU Sniper School Oct '78
Distinguished Rifle Badge 1071
kraigwy is offline  
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