Originally Posted by
Hsing-ee
The 'dropping under gravity' thing is not really necessary. If you can move the piston with finger pressure, that is fine.
Yup. In fact I much prefer the shot cycle of springer when there is a little more drag on the piston - less bounce, and a softer final piston landing.
The gravity thing is really if you are trying to wring every last smite of energy out of a gun, and even then, it's easy to go too far and sart losing seal.
Finally, when resizing seals, I have always found that once sized, they initialy wear in (i.e. wear down) very quickly before stabilising, so if you do need to size a seal, always size it a bit over, then shoot say 50 shots through it. You'll be surprised how much the resistance reduces in thsis short time..
Always looking for any cheap, interesting, knackered "project" guns. Thanks, JB.