I just needed to know the csa of the sheath for a PIR. Old circuit to garage. I wouldn't even attempt to cut back and re-terminate an old MICC cable.Cor blimey Lilman, there are some metric pyro terms that will fit imperial but I can't remember what they are now . Trial and error. If I remember right , the imperial terms have'nt been availiable for years. If you are looking to cut an old pyro, perhaps, and make use of it, it is possible to remove an existing gland and pot and re-use , but its not easy, need to save the seal and not damage the olive but can be done.
Generally imperial pyro gets replaced TBH.
Deke