Quote:
Is a Crossman co2 pellet gun powerful enough to kill a big CC or GC within 25-30 ft range?


Probably not, having been shot once by a Crossman pellet gun I am pretty sure the answer is NO, the penetration was a little over an inch without going through any water first. They are powerful enough to kill a bullfrog sitting on the bank, just don't let your friend try and shoot the frog in the air while you toss it his way, you might get shot. ;\)