As Blue Bird pointed out, it’s going to depend completely on your barrel’s twist rate. If it has a 1:48” or faster twist, it could work with one of the lower weight PowerBelt bullets. I have my doubts if the heavier/longer ones will stabilize at all, let alone with a slower twist. I could be wrong, but I wouldn’t be shocked if you got keyholing at any weight much above the 245 gr. offering.
If you have a traditional round ball twist in 1:60” or 1:66”, you can forget about it. The bullet will assuredly tumble and keyhole into the target.