ok weird problem at field
yesterday was at my local field for practice getting ready to crono the gun and the first shot went ok then the rest just rolled out the barrel. using same tank ninja 550 reg iv always been using new battery solenoid at 8 sprung. air on. i turned my reg up till it shot took some time. when it did shoot it was at 385, then i turned it down to 290 and the gun shot fine the rest of the day just the normal bolt stick that is has cause of the new o ring. does anyone know what would cause the gun to shoot fine the first shot then the rest to just roll out.