Remember "barrier blind" ammo doesn't mean that it will just penetrate barriers. Most bullets will do that to one extent or another.
"Barrier blind" means that the bullet will stay together and not separate into it's component parts and hopefully retain it's effectiveness if it does penetrate a barrier.
Usually the core is bonded to the jacket material or it is a solid copper bullet.
In my opinion it is better to have it and not need it, than need it and not have it.
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Good luck.
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