My Crosman 760 pumpmaster drops pellets into the cavity just below the breech and there is no discernable air flow, though it sounds as if everything is OK.

SOURCE: I just got my son

Are you pumping the gun??? Once you have bb's in the gun you have to **** it and then pump the foregrip 10 times then pull the trigger.......

SOURCE: I have a crossman 1377 (177) cal pellet pistol.

yes it safe to shoot bb,s in the 1377 pump pistol,i have 3 of them they actually shoot true'er and with more vilocity

SOURCE: Can't find the specs in ftbs. my Gamo .177 Bone Collector is rated a 1300ftps. How far can expect to shoot accurately with this break barrel pellet gun?

Depends on who is shooting. But just test your skills on a 75 yard range. Shooting competition, with the special competition guns are shot at 10 meters (about 30 yards) Without a scoop, they easy shoot 80 % of all pellets through one .177 hole on 30 yards.

SOURCE: I own a M4- .177 calibre air pump rifle was wondering if any one can help me? in jam it it added the five pellets In the clip and it only shot two out of the five its brand new only 2 shots. :(

Hi Brad:
I'd be taking it back (AS IS) to the place where I purchased it.