Boars are not rhinos; like all larger game animals shot placement trumps everything else. You don't need someone's expensive bullet.
Much ado is made about a boar's "shields". i've shot a couple 300 pound boars with a .50 caliber muzzleloader using patched round balls. Balls went through "shields", tore up the lungs, hogs ran for about 100 yards and died with their tongues hanging out.
Two hogs with one shot:
Hog raisers accurately estimate the weight of a hog::
1. Measure heart girth.
2. Square the heart girth.
3. Measure distance from base of tail to between the ears.
4, Multiply 2 and 3.
5. Divide by 400