[Jeff Higgins]

My four pumpers definitely prefer the heavier pellets. The super light ones won't damage them like they will the springers, though. Whole different ballgame. The light pellets are simply inaccurate in my pumpers, and they don't hit the rats nearly as hard.

On the topic of gun care, cleaning, and oiling, it's worth mentioning that the gun oils and cleaning products we use on powder burners should never be used in pump up air rifles, at least not the quality old time pumpers. Those rifles are made out of brass and copper, and gun cleaning solvents are made to dissolve and remove copper fouling. They will damage these rifles in short order. The best oil I have found is what Tim McMurray of MAC 1 Airguns calls his "secret sauce", which is actually no more than pneumatic cylinder oil. Applied liberally to the hinges and the front part of the piston (never on the compression side of it), it will keep these guns working essentially forever.