Oh Bother 

How did Pietta sneak into this conversation??  We were discussing Uberti wern't we??  Just as a point, over the last 15 or so years, I haven't found enough error in the Barrel to Arbor fit in Pietta to be concerned about.

Regarding the 90 degree barrel twist, only enough offset is required to gauge the amount of overlap (should be zero).  The problem lies with the poor matchup between the bore in the Barrel Lug and the Arbor.  Mostly, out of the box, the barrel has had to be "driven" onto the arbor and the "driven" off to disassemble.  Just looking for a "witness mark" in the bottom of the hole will only confirm the whole assembly doesn't fit properly.

Now, to be honest. I can't speak for Uberti guns made over the last 4 or so years as I have taken down my shingle.  However, if Uberti couldn't be bothered to fix the problem over the last two or three DECADES I would not expect it to be corrected now.

Yeah, i think for that particular use, the scallops would be too much. There's already a lot going on there. It looks like the original is actually a wiggle. So I ordered one of those too.

Barry had said a few years ago that he was working on a Greek wave stamp but alas, I still don't see it.

I like to use the Brownells plug gauges to get the correct depth.  I don't have one for the .36 bore, though.  The one for .45's should work for percussion .44's since the bore size is the same.

That veiner looks good. For this purpose, a scalloped one might be too busy looking. BUT, it is a good excuse to get another BK stamp.