Ditchdigger,
Did not mean to rain on your parade, just feel there are better alternatives. I shot my first boar with a .375H&H, and I hit its front knee joint as I aimed for the heart. The 300 grain bullet was deflected as it passed through the knee to the front of the heart, where it took out the arteries, yet the thing still ran 40 yards and took several minutes to bleed out and die. Shot the second one with a .260 Remington using 160 grain Hornady RNs. Clipped the leg bone, took both lungs and exited far side shoulder. It ran 200 yards and was dead when we arrived. They do take killing. Your Handi rifle cartridge is a much better round than the 450 Bushmaster. If you want a semi-auto, why not a Browning BAR or Remington 7400 Carbine? The 220 grain 06 penetrates brush and animal with the best of them, its sectional density being one of the best. The BAR is offered in a favorite of mine, the .338 Win MAg, which has readily available 250 grain bullet loads, these also having good sectional density.