Ross barrel thread query

[britarms]

I need to pop the barrel off a Ross MkIII that I'm playing with, but have no info on the threading: Is it RH or LH? I know the MkII had LH, but I also know the threads were changed for the MkIII from the 4 TPI LH threads to something more normal, I just don't know the direction. I don't want to waste too much time & possibly damage things by overtightening.

 

[tiriaq]

Right hand, reverse of Mk. II.
I'll pulled a few, and they can be tight, so use a barrel vise and action wrench that fit well.
IIs were intended to be removable without these tools, IIIs definitely need them.

 

[britarms]

Thanks for the help there, tiriaq. I've still got to make an appropriate-sized bushing to clamp the barrel. they sure have a big breech on them!