The Firing Line Forums - View Single Post - Are Bi-Metal Jacketed Bullets armor piercing....

Skans · October 28, 2013, 08:06 AM

The question is whether a bi-metal bullet, say 7.62x39 will substantially defeat body armor better than a solid lead bullet of the same cartridge. What about pistol cartridges using bi-metal? Has anyone actually tested this? Has anyone actually tested how bi-metal bullets deform (or not deform) upon hitting various substances?

I know the difference between a steel-core bullet and a bi-metal (mild steel jacketed) bullet. However, I have read reports of very little deformation of bi-metal bullets upon impact, and I was wondering if this translates into better penetration of protective armor.

October 28, 2013, 08:06 AM	#9
Skans Senior Member Join Date: November 20, 2008 Posts: 11,132	The question is whether a bi-metal bullet, say 7.62x39 will substantially defeat body armor better than a solid lead bullet of the same cartridge. What about pistol cartridges using bi-metal? Has anyone actually tested this? Has anyone actually tested how bi-metal bullets deform (or not deform) upon hitting various substances? I know the difference between a steel-core bullet and a bi-metal (mild steel jacketed) bullet. However, I have read reports of very little deformation of bi-metal bullets upon impact, and I was wondering if this translates into better penetration of protective armor. Last edited by Skans; October 28, 2013 at 08:14 AM.