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SDC · January 13, 2013, 05:48 PM

Interesting; maybe there isn't enough back-pressure in most wipeless designs to fully cycle? The stock PBS for the AKM uses fore and aft rubber wipes, and is intended to be used with the issue "US" reduced-velocity round; 193 grain FMJ at around 970 fps, with no other changes that I'm aware of, since the rifle is expected to be able to switch back and forth among all issue ammo.

January 13, 2013, 05:48 PM	#5
SDC Senior Member Join Date: January 23, 2001 Location: People's Republic of Kanada Posts: 1,652	Interesting; maybe there isn't enough back-pressure in most wipeless designs to fully cycle? The stock PBS for the AKM uses fore and aft rubber wipes, and is intended to be used with the issue "US" reduced-velocity round; 193 grain FMJ at around 970 fps, with no other changes that I'm aware of, since the rifle is expected to be able to switch back and forth among all issue ammo. __________________ Gun control in Canada: making the streets safer for rapists, muggers, and other violent criminals since 1936.