These rifles have an enormous 1.5x velocity increase from the regular initSpeed. This is not even possible in real life with these rounds from these barrel lengths, if you increased the speed 50% in real life, your 5.56 would suddenly be as powerful as a .308 because:
KE=1/2mv^2
therefore 1.5x the velocity = 2.25x the kinetic energy.
It is making unrealistic time of flights and bullet drop, as well as highly inconsistent damage drop to other weapons firing same rounds and so the ballistics no longer have any authentic basis. Depending on what weapon the standard initSpeed and typicalSpeed is based on, authentic values for these rifles are approximately:
1.06x for Pioneer (19" barrel compared to 14.5" M4A1)
1.03x for Pioneer (19" barrel compared to 16.3" AK-101)
1.02x for CR527 (18.5" barrel compared to 16.3" AKM)
Compare to real figures for 5.56 and 7.62x39 rounds from different weapons:
a 1.07x increase for 20" M16A2 compared to 14.5" M4 Carbine
a 1.04x increase for 23.2" RPK compared to 16.3" AKM