WHAT DOES HSL AMMO MEAN?

Fantastic ammo. My cz 457 loves these things. Most effective 50yd groups away from 15 match ammo examined, chrono’d at 1070 ave, very low sd. Oily lube, appears to take a few more down the pipe to period the barrel, as opposed to waxy lube like Eley.We frequently proceed to acquire SK’s ammunition to ensure reliability, precision and balance fr