I measured the stroke and it came out at 83mm.

The transfer port seems to be just above 2.5mm. A 2.5mm drill bit fits in there with a little bit of play. Unfortunately I dont have any other sizes to check and cant get my calipers in.

The transfer port is countersunk. Is that done at the factory, or has someone messed with it? Hopefully that wont cause issues

I think the piston seal might be slightly undersized. When I put a finger over the transfer port the piston slowly drops down. Am I right in thinking it shouldn't move at all when you cover the port? If so does anyone know a good replacement seal thats still made for Webleys?

I really wish I would have got it glided a few years ago. I remember my glided Longbow being amazingly smooth to cock. This is kinda rough to cock, despite using moly grease.


Thanks for the help guys, really appreciate it!