So far I have used 7mm and 7.62x39 and 44 magnum.For hog hunting, you do NOT want a bullet that sheds weight; you want a bullet that will hold together and penetrate deeply.
For hog hunting with a 30-30, I use 170 grain JSP Core-lokts. If I'm using my .44 Magnum carbine, I use 240 grain JSP Winchester White Box.
A solid or copper core would be preferred over a bullet that fragments. Heavy for caliber bullets usually work best for pigs for a higher Sectional Density and penetration.
What caliber are you considering, chica?