SMK?s definately expand I?ve seen too many head of game shot with them and a fe2 recovered bullets and they expand.

I killed elk, deer and deer with the 300 grain 338 SMK and it is devastating on game. They will come undone in deer at 220 yards with extreme internal damage. At 300 on 2 deer I?ve had complete pass through with extreme internal damage. At 1400 yards they leave tennis ball size exits.

Th3 175 grain SMK is devastating on antelope at about any range.