I'm not singling you out Magic, just letting everyone else know.

To kill a squirrel at a range of 20 yards or less, your projectile ( in this case a BB..and I would NOT use plastic BB's to kill anything ) needs to have a muzzle velocity of 500 fps or greater. Sure you can shoot slower and maybe get a kill, but to be safe and to get good penetration, 500 fps is the minimum.

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this thing looks really dangerous, I could foresee people bringing these onto fields and hurting people, except for the velocity problems.

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He who created the ten foot rule is stupid. -Confucius