Not sure I understand.... if you fire faster do the shots get consistenly lower in velocity (i.e. drop off) or is it just random shots are hot no matter what speed you are firing.
If it drops off, you may have the problem I did- the on/off pin not completely retracting from the on/off top O-rings when you release the trigger, which restricts the gas recharging the valve. On slow shots you don't notice but the faster you fire the worse it gets. You can get this effect if your trigger rod is too long. Is there a space between the trigger and rod when the trigger is released and the gun gassed up?
I would second the suggestion that you get a parts kit, O rings may completely worn but look fine. At least with a parts kit fitted you are starting for a level playing field and you then know what the problem *isn't*....
If it drops off, you may have the problem I did- the on/off pin not completely retracting from the on/off top O-rings when you release the trigger, which restricts the gas recharging the valve. On slow shots you don't notice but the faster you fire the worse it gets. You can get this effect if your trigger rod is too long. Is there a space between the trigger and rod when the trigger is released and the gun gassed up?
I would second the suggestion that you get a parts kit, O rings may completely worn but look fine. At least with a parts kit fitted you are starting for a level playing field and you then know what the problem *isn't*....
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