The Cobra 80 lbs. self-cocking crossbow is rated at shooting crossbow darts at 150 fps. The included darts weigh approximately 12.5 gr, so the pistol crossbow generates approximately 12.5 ft. lbs. of kinetic energy. From 30 yards, this was more than enough to drive the dart approximately 1 1/2 inches into a thick, healthy tree.

At 12.5 ft. lbs. of kinetic energy, the Cobra 80 lbs. self-cocking pistol crossbow is lethal enough to take on some small game, as long as you have developed enough accuracy with it to hit the vital organs. Most sources agree that you need 5 ft. lbs. of kinetic energy to take down a rabbit or squirrel, so the Cobra 80 lbs. is more than powerful enough for these small game animals