Several months back, I organized a hunt for hogs for the month of May using big bore airguns. The time came a few weeks ago, when I met up with a few other airgun hunters (one from Colorado, two from North Carolina) in Stonewall, Oklahoma to hunt wild boar at the first all big-bore airgun hunt at the Shiloh Ranch.
We all used .45 caliber air rifles of varying power. One guy (ExitPupil) hunted with a self-made .45 air rifle (a sweet and accurate shooter), while his son used a SamYang 909S .45 air rifle power-tuned by dad.
Another hunter had an air rifle that shot 390 grain slugs at close to 700fps!
We all had great luck, and each got a wild Oklahoma hog. All hogs shot were one-shot DRT's without a step, and with minimal-to-no wigglin'.
Starting with mine, the smallest hog taken, and the shot placement. My 80lb. or so boar hog hit between and just over the eyes at about 20 yards using a 228grain SWC going 700fps.
Followed by a couple of 100 pounders taken by two other bigbore airgun hunters (one nice eater boar, and one FAT sow) and then the largest hog taken, a 142 lb. sow!