I've been loading the Interlock since the early 80's in several cartridges (130 & 140 in the 270 WIN) (150, 165, 180 in the 308 WIN, 30-06 SPRG, 300 WIN MAG) and several others. All my current stock of Interlocks are from the 1990's and early 2000's and have performed well in the deer, coyote, and hogs they have killed. I have only shot the SST in 308 WIN Hornady Custom factory ammo, killed the deer just as dead as the Interlock did. I have enough old Interlocks to last several lifetimes so I doubt I'd handload any SST's, but if I needed any I'd use them.
