My new .44-75 Ballard

[Nuclearcricket]

Kurt, it seems that at this point the oversize grove diameter on your barrel doesn't seem to be a deterrent. Ever since you posted the dimensions, I have been thinking, and unfortunately I can't remember the exact conversation, but several years ago I met and talked with John Getz of Getz barrels. He had told me that someone had approached him to make a .40 cal barrel and this person wanted the rifling cut, I think, .005 deep instead of the usual .004". This person felt that it would help with fowling and such. From what John told it actually shot very well.
From the accounts you have posted so far, your new rifle seems to be shooting very well also. As you do your load development and long string shooting with it, it will be interesting to see if your exra deep groove prove to be a help or not.
Sam