Things I have used to kill rockchucks: 5 iron at BLCC Dart gun at BLCC Darton 80lb bow 22 LR 22 Magnum 12 Guage shotgun 17 HMR 17 Remington 17 Mach IV 223 Remington 22-250 Remington 220 Swift 6mm BR 243 Winchester 6mm Remington 257 Roberts 257 Roberts AI 25-06 260 Remington 7mm STW (when they are out there a ways) and last but not least the good old 30.06. Closest shot is with the 5 iron kinda like playing polo from a golf cart. Catch a large chuck resting in the middle of the fairway and run them down! Most chucks killed in a day was 250 plus on one 40 acre farm that was just infested. Longest shot to date is 873 yards with the Sendero in 7mmSTW. Chuck was still tossed in the air a good 6 feet! Mike.