Tippman trouble, this gun needs help

[Brady]

i just bought a used tippman and when i compared it to my friends tippman, i had to crank my velosity way up in order to shoot as far as his. Whats with that? So i opened up the gun, oiled everything replaced old stuff with new, and put it back together. I hooked the air up to it, fed it some paintballs, cranked the velosity up, and now the gun just spits the paintballs out about a foot. Im gettin pretty frustrated with this thing, so if anyone knows anything about this please reply. Thanks

[phatboy]

do you hear a leak??

[Snyper731]

Ummm, well is it a 98 or another Tippmann? There must be something wrong with the bolt assembly. Open it back up and see if all the parts are there (with a 98 they spray everywhere when u open it up). You may not have put the spring back in the rear bolt after taking it apart or there may be a problem with the linkage arm. Otherwise, take it to the airsmith. Happy hunting.