I am having Jim White convert a SxS shotgun to .45 caliber DR. As all here are aware I will require a regulating load. This is where I am hoping y'all can lend a hand and would like to solicit your sagely advice.

Currently under consideration are bullet weights between 400 gr. and 500 gr. Which bullet weight do you consider the best choice? If you have a particular brand or shape that would be appreciated as well. I realize this can be highly subjective especially when one considers the potential game species involved. The next question is, what do you consider the minimum acceptable muzzle velocity for the bullet weight selected?

For the near future this will be a hog gun or shot just for the pleasure of shooting. Which bullet/velocity combination "floats your boat" for the .458 caliber.

Thanks,
Eric