6.5 Grendel Armor Piercing ammunition data/info...

[stanc]

That unsatisfactory gel test of the FMJ bullet has already been used in a British report on future small-arms ammunition to discredit the effectiveness of the 6.5mm calibre, so it is indeed important to get it right.

Ah...I didn't realize that the Norma FMJ gel test had been used to discredit 6.5mm. That tidbit certainly puts a different light on things. (Although it's still the best FMJ option currently available for testing. A pity that the 113gr 6.5x55 AP bullet can't be had in quantity; that could be interesting to test.)

RUAG are offering an interesting new lead-free 5.56mm loading which is like the M855A1 except that the steel penetrator is still enclosed in the jacket (or like the M855 only with a copper rather than lead plug), thereby meeting European sensibilities.

Other than being eco-friendly, I see nothing new in the design; it's essentially just the same ol' M855. I wonder if barrier performance is any different than M855?

That looks like a promising starting point for scaling up, but I suspect may be problematic for a small firm to develop.

Maybe so, but it has to get done by somebody if an intermediate cartridge is to have a chance of success.