I tryed cb's on a chuck in a live trap . First shot in the head from 2' just dazed it , 2 shots in the chest took 5 min to kill it . Find an other load ! I use Win power point 22 lr from a up stairs window on house yard chucks.
I'm going to use the Aguila SSS rounds from upstairs. My cousin swears by them, and I watched him turn a 'hog off like a light with a round in one ear and out the other. The way my mom's house and garden are laid out, it'll be about a 45° angle from the window to the groundhog at around 20 or 25 yards. Even if it does overpenetrate, it'll hit soft ground.