Big Cat 1200 Tune ?????????????????

[gatonini]

I got so *_*_*_*_*_*ed off with this gun that I ripped it down for who knows how many times. I took the old spring and the old seal which looks like the neighbors
pitbull used for a chew toy. Put it back together guess what now it shoots through 3/4 pine what the hell gives.

[RedFeather]

Did you just put it back together or what? If you tarred the spring, you may be experiencing a bit of dieseling for the first few rounds until it breaks in. That would account for the sudden increase in power.