I haven't personally hunted hogs, but I have read lots of comments on various chat boards concerning this issue. All the experienced people agree with the heavy bullet moving as fast as possible. No hollowpoints should be used at all. Heavy cast bullets of the Keith design work well. There are lots of commercial casters out there that make a 255 gr. Keith style bullet that works well from a 45 ACP. You can find loads that will push these bullets at over 800 fps that ought to punch thru a hog. Hogs are very tough animals that deserve more respect(they can be dangerous)than many give them.
Guard Freedom from those that "want to do it for the Children."