I run Targex 125 match as a super load in my Blackout, and Sierra 240 MK's for subs. I've shot a few stinkies with the supers, they drop well, I really rate the Targex pills. My mate was using it and dropped a stinky with a neckshot at 180m, offhand. I shot a fallow with the subs, it dropped, but the pill went straight through. I think @Spanners was working on pills with cuts in them that would peel back, probably be better. Thought about loading a MK backwards so it hits blunt end first but haven't tried it yet. Took a bit of finesse to get the subs to cycle, but she goes good now.
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