the squirels have ripped 2 canopy covers now the cover is outdated have to buy a new model , looking at a umarex c02 pellet pistol to dispatch the nappy basterds, they get 10 ft away from you and chatter and give you the flipped tail, will a co2 pellet pistol do the job , I see SFRC has a BB machine gun would that be a beter choice any advice welcomed,