Originally Posted by
jepho
Thanks for this response. The cleaning was carried out with Napier and patches on a pull-through. I guess the point about corrosion in the barrel through moisture is a possibility. The house is kept at an even temperature and does not suffer during the cold weather. Moving from well heated to a cold environment could potentially provoke condensation and that may provide enough moisture to corrode the barrel. When I inspected the barrel from both ends against a strong light source, I could see no variation in lands or rifling grooves. Good point about the action block. It is very firmly bolted together.