Hunting ammunition from Remington and Winchester is only 123-gr soft points.
But, you can order fine Wolf 154-gr soft points from midway for $5/box...about a third of the cost of the Remington and Winchester stuff! Took a 320-lp plus pig a couple of weeks ago with one heart/lung shot...the pig moved five feet, fell over, kicked a couple of times, and expired.
I agree with several other posts...the 7.62 x 39 is about equivalent to the .30-30, so your practical max range is about 300-yds. That said, the SKS may well be the best boar hunting gun around...inexpensive, durable, short and easy to handle in brush, and a semi-automatic. But, stay away from the big cap aftermarket detachable magazines...you don't need that capacity, and those long mags seriously get in the way.