..I've drilled out the Co2 port on the valve and the gun itself. I'm awaiting a valve so I can strip it, (possibly) widen the internals, de-burr it and put it back together.

However, I'm bored having to wait. I've got a .177 Crosman barrel I'm going to try and fit. It'll mean drilling out where the barrel is fitted up to the seal, and the fore end of the barrel housing.

Wish me luck! (If it all goes Pete Tong, it goes in a big way!)