PC

For pigs in Australia, I assume you are using a .30 calibre in a .308 or .30-06.

Most bullet weights of 150 gr or over will do OK, staying away from the more fragile ones.

I use 150 gr Nosler Solid Base HPs, SPs or Ballistic Tips. Though I don't like the Ballistic Tips, the straight Solid Base SPs were better.

A lot of Aussie pigs are quite small.

Of course a .375 H&H loaded with Taipan 235 gr Flat points also does some decent damage to them