Interesting article on this round in last months American Rifleman. Has anyone tried , or even seen any of this ammo in civilian hands?
So the reason us civilians won't see that ammo is because of the pressures?Improved performance was a design goal, accuracy and terminal performance were improved over M855. Unfortunately this was achieved by increasing velocity, with increased velocity comes increased pressure, M855A1 pressure is running at 62.5K. Before M855A1 62.5K was called a proof round, now it is a combat load. Not only are you unlikely to see any civilian sales it is unlikely that any will be issued CONUS for training use, it is very hard on rifles. Now I would not be surprised if .gov comes out with green training ammo loaded to normal pressures.
E2,62k is the ceiling for 5.56 pressures. Stuff like MK262 is up there, your typical varget match load is probably 52k PSI.
Absolutely. Quite impressive given barrel temperature. CRANE NAVSEA definitely liked what they saw.LOL you tell me I'm off base and then post a chart where the chamber pressures are in the high 50s and low 60s for the 'temp stabilized' powder.
Captain C,My understanding about the potential problems with the cartridge is that the bolts are developing stress fractures at as little as 6k rounds. I wonder if the Sharps "Relia-Bolt" would last longer with this round. I didn't read anything about reduced barrel life that I can remember, but one would assume the "hotter" round would do just that.
Now I would not be surprised if .gov comes out with green training ammo loaded to normal pressures.