They will not perform as well as projectiles designed for hunting.
What advantage do you think they would provide for you? Considering that the available hunting rounds from both manufacturers are almost as accurate (especially SGK), what would you expect to gain with the little improvement in precision at the expense of terminal performance?
I will add that the military does use OTMs in some ammunition and that is because they are not designed to expand and do perform like FMJ upon impact. They use them only for accuracy and retained energy (the OTM projectiles are much heavier than standard).
I have read, but do not have experience, that the a-max, while a match bullet, does perform well on game. .30 cal - Hornady A-Max
What caliber are you shooting? If you don't mind spending a bit more, Berger makes some very good high bc match grade hunting bullets. I will be trying out their 168 gn match grade classic hunter in .308 (.496 bc) soon. From an accuracy standpoint, I actually have comparable or even better results from the a-max vs the smk. YMMV.
Ive killed a few animals with the AMAX, and in real life if you put the bullet where it needs to be it does the job. If you dont put the bullet where it needs to be it doesnt do the job. This is with a 6.5mm on pronghorn, and coyotes.