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Explosively-Formed Penetrators

24 Dec 2018
@ 04:19 pm (GMT)

Ryan Nafe


I was doing some of my usual random reading on Wikipedia this morning and I happened to come across an article that was somewhat relevant to what we usually discuss on Nathan’s forum.

The level of kinetic energy obtained through this process is several orders of magnitude higher than anything obtainable through ordinary centerfire rifles, but I thought it might be interesting to discuss:

Just to illustrate, in simple terms, the level of power that’s possible by these methods:

My current .308 Winchester load launches a 130 grain bullet at 3,000 FPS. That’s about 2,600 foot-pounds of energy. Between the bullet design (Barnes TTSX) and the velocity, I could kill any animal with a broadside shot, up to around 500 pounds as an upper limit, inside of 100 yards.

A large EFP device can launch a 2.5 kilo piece of copper at around 6,000 FPS. That equates to right around 3.6 or 3.7 million foot pounds of energy.

An absolutely incredible amount of power.


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