I have also read the negative posts about Powerbelts. But I do intend to try a Powerbelt this year in my Great Plains Hunter with 80 grains of 2f powder. It will be a 295 grain copper coated Powerbelt. I will aim center mass and see if I can blast out the major organs. I expect to get major damage with a close distance shot like that. And it should be interesting to me to see how long it takes to bring the animal down.
The other rifle I am going to use a lot is the .451 White with a 488 grain conical and 65 grains of Triple Seven 2f. I think even though this load might not sound like much, it will be bad news for a White tail deer.