I have a One Less Charlie Mod which will need to go as funds are a little tight this month, it was made by Colin for use on my 300WM with a mixture of range work and stalking.
It is 1/2" UNF
I picked this up at the Shooting show this year so only just over a month old. It is a fully stripable with stainless steel baffles and it is an over barrel type. It works extremely well with both db reduction and felt recoil as im sure certain members on here will testify lol
It has had 30-35 shots through it, I paid £220 for it so a fair price would be £160 + RFD but would prefer F2F.
Pictures will be up by tomorrow.