bore size on 01 all a barrel?

[Johnny_Reb]

Hey I was wondering if you new the bore size on the 01 all a barrel. thanks!

[mykroft]

.689 on the Medium bore (Black Back).


IIRC it's .691 on a large bore (Pewter back) and .687 on the small bore (Can't remember back colour)but I'm not sure on these.