Did Longbranch T 's always come wwith 5 groobve barrels or others?

[Peter Laidler]

I only know about the two groovers as we used these for barrel testing and the two groovers were as good and accurate as the 5 groovers. If I could go back into the archives, I think that we all concluded that when it came to just the rifling, it was the twist and depth that counted and nothing to do with the number of grooves