Thank you indeed Richard and Peter.
The Vickers information is most interesting. I shall have to read the rest of the information you have been so good as to share online.
Good point Peter that the reasons for rejection are different, and that makes a lot of sense. Accuracy obviously not a consideration for the OHF guns, and safety not an issue for a LE until well after it is useless in terms of accuracy. Nice insight there.
Although the absolute numbers stated for the Vickers are probably quite irrelevant to a LE, I should think that I could take a baseline with an unfired barrel, and deduce using the Vickers numbers a wear value on LE barrels, it will be interesting. Just as a pointer, because as Peter said, accuracy is the thing.
I'm really glad I asked.
gravityfan