Daan, not sure what you mean by skew, unless you mean like off-centre.

green, sounds like that could work.

Sunray, don't think I have the stuff to slug a barrel, and headspacing I figure I can fix later with some tighter boltheads, or just use the old rubber ring fire forming trick. Also no extraction issues or anything.

englishman, Sounds alright to me. I reckon I will need a finer file or stone to do it properly and smoothly though if I continue. Would blacking from a lighter or match work just the same as a candle? I reload, but I haven't had enough rounds through this gun to really tell if it kills brass or not, guess we'll find out. I have heard that the trigger is pretty important, and the tell-tale instant stop of the rotation of the main screw is not evident with this rifle, so I presume there is still some room for the wood to crush before it is just trigger guard against busing/collet. I had a quick gander at some of his information the other day, but I'll need to sit down and have a proper read.

Cheers everyone.