There isn't a hog on the planet that won't drop fast to a .223rem with 60grn Nosler Partitions. I've killed bunches on bunches of hogs with a .223rem or .22-250, even with varmint bullets, but I've found the 60grn Partition to be the ideal ticket for that application.
Whether that Mini-14 is accurate enough for the purpose, that's up to you to determine.
I've also used the x39 round in mini's, sks's and ar's for piggies, not a lot of good hunting loads or bullets available, but there are enough around to keep you fed. It's not hard enough hitting to make a huge difference for long range penetration of the shield on super pigs, and for ear shooters, it's not going to have any advantage over the 223rem.
Flip a coin, the sks or the mini will be fine.