Quote Originally Posted by piggy589 View Post
How about a Vortek 26mm seal and adapter sized to 1"?,the parcel arrived safely today,many thanks
I'd leave the seal unsized until you've tried it. the cylinders are rolled steel, so not exactly perfect, and you want to keep it a good bit tighter than for a true cylinder, to allow for variations in the bore. Also check the tightness for the entire length of the stroke not just a bit - it is likely to vary, and be larger at the end Finally, as per my thread, defo worth putting a 22mm dowel / pipe with a sheet of emery wrapped / glued around it to smooth out the cylinder / take off any high spots. Also do the cocking slot and rear section of the tube, as any high spots or sharp edges can damage the seal.

Finally, if it does prove to be way too tight after all of the above, size it very conservatively, as a sized seal will wear in much faster initially (within around 100-200 shots) before stabilising, so if you size it perfect, it will be under in less than half a tin of pellets.


A decent seal is the most important change to a meteor for efficiency, as the o-ring requires a decent true bore to seal, and the meteor's is anything but !


PS a vortex seal isn't very flexible due to the solid design - an HW 26mm seal is a far better bet, due to the thin, flexible lip. Once again, not an issue so much on a decent, true cylinder, but on a meteor

HTH - JB