Originally Posted by
lemoyne
Pglasgow
There is only one problem that I know of with the narrow rifling. They will get wear around the crown a bit faster than standard width. Of course that won't make any difference to some one that uses a bore protector bushing.
Lee,
I take it you mean wear of the rifling. I think I would agree with that. The wear is really the same of course but with less metal being the rifling ... a greater proportion of the rifling is worn.
I would think the biggest problem would be blow by around the projectile as it leaves the crown. So it would be minimized I think with sabots and reduced by using an overpowder wad on conicals.
Like Breechplug, I am interested in knowing what a bore protector bushing is.