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Philip Van Cleave
Philip Van Cleave, Firearms Instructor
Category: Firearms
Satisfied Customers: 3965
Experience:  Firearms instructor, 40 years experience with firearms.
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I bought a S&W M&P15 and later purchased some IMI M855

Customer Question

I bought a S&W M&P15 and later purchased some IMI M855 penetrator ammo .556/45 and I was thinking maybe I messed up! I'm not sure I can use them in a Remington barrel?
Submitted: 1 year ago.
Category: Firearms
Expert:  Philip Van Cleave replied 1 year ago.

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M855 Penetrator (Green tip) is fine to shoot out of an S&W M&P 15, which is chambered for either 5.56mm or .223 Rem. calibers. It has an embedded lead core for more penetration, but other than that, it is a normal 5.56mm round.

I hope this helps.


Customer: replied 1 year ago.
I hope you understood that the rounds I purchased are Israeli military rounds under more pressure than basic m855 rounds. I appreciate your response, and hope you understood the ammo was IMI penetrator rounds! Thank you. Rob
Expert:  Philip Van Cleave replied 1 year ago.

Yes - that round's pressure is within specs for 5.56x45mm ammunition.

Expert:  Philip Van Cleave replied 1 year ago.


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