Firing the Martini Henry and a question

[simesgee]

Happy Easter Everyone!
Now I know the club rules - here's a couple of YouTube vids of us firing the Martini-Henry MKIV:

https://www.youtube.com/watch?v=d9-E...ature=youtu.be

https://www.youtube.com/watch?v=S_qs...ature=youtu.be

Now here's a question. Having fired several hundred shots through a couple of black powder pistols I have noticed a saw mark on top of the arbour right where the cylinder stops (they are Colt clones). I am assuming this is a gas cut? How serious is this? Is it normal and is there any way to prevent it or slow it down? I haven't used grease on the arbour but I would have thought the hot gas would quickly burn or blow off anything you put on. Unless it turns to carbon and protects it that way?
Any ideas?
Cheers folks
Simes

[tacfoley]

Happy Easter Everyone!
Now I know the club rules - here's a couple of YouTube vids of us firing the Martini-Henry MKIV:

https://www.youtube.com/watch?v=d9-E...ature=youtu.be

https://www.youtube.com/watch?v=S_qs...ature=youtu.be

Now here's a question. Having fired several hundred shots through a couple of black powder pistols I have noticed a saw mark on top of the arbour right where the cylinder stops (they are Colt clones). I am assuming this is a gas cut? How serious is this? Is it normal and is there any way to prevent it or slow it down? I haven't used grease on the arbour but I would have thought the hot gas would quickly burn or blow off anything you put on. Unless it turns to carbon and protects it that way?
Any ideas?
Cheers folks
Simes

Now you know why they put grease on the arbour.

tac

[simesgee]

Now you know why they put grease on the arbour.

tac

Well you may have a point :-) I'll give it a go....