How do I fix a leak down the barrel???

[Puddleglum]

I guess it's bolt stick. Just a new o-ring in the powertube and a spacer kit? Maybe the .225 spacer, I'm running a .220. Thanks, I need a response today.

[mykroft]

Change your power tube O-ring, and try a shorter spacer, like a .215, if that doesn't work, mix and match spacers till it does.

[PyRo]

Bolt stick=spacers

[TheBigRaguPB4L]

first you have to figure out what it is. it might not necciserily be bolt stick. when you gas it up and it leaks, hit the back of the gun, if it stops, then it's bolt stick. another thing is to stick a straight shot down and push the bolt back. same result. if it doesn't stop, then it could either be your trigger rod to long, bad sear, worn bolt, on/off pin to long, etc.

[Elementnaz]

Fix leak barrel

new o-ring (easy)

[PyRo]

O-ring is one possibility of many

[Puddleglum]

Thank you everyone for your help. The problem was actually a combination of things. Wrong powertube O-ring, no Teflon O-ring in the On/Off, trigger rod had been played with. So I pretty much re-did the whole gun, and it now shoots like a charm. Thanks again.