Other posts about accuracy issues got me thinking.
My gun shot like doo doo, crown looked like doo doo,, sent back to smith to crown barrel.
It came back and I shot an off hand group ran som eplate racks,,, seemed to be fine.
Put up for a couple years.
Now got a pistol bench rest and working up good loads,, It shoots ok, but not all impressive.
Another poster stated accuracy issues are farther back..
So,,,,, did some measuring.
1 I had a squib,,, load with primer only got swithced when i was setting up dies,,
So VOILA land and groove measurement once I wacked out the bullet.
Broke out calipers, a new box of Hornady XTP's .357 and some new bayou cast .358.
So what do I get ? pretty shocking,,, Throats appear to be .357.. I can push the XTP through with a plastic pen. A bit of resistance,, I thought it would fall,, but I have to push a bit Although when I mike them after pushing through all 7 cylinders dia is still .357
So looking like a .357 throat,,, Ideally I think it should be at .358, moving on to barrel
Was getting .352 ish groove,, but then noticed I cant figure out how to measure land and groove , As on this gun the Land is 180 out from the groove,, turned it a hair off to catch both grove, seems I get a .352-.351 issh area when I rotate bullet

So ? what to do ? can ream cylinder throats to .358,, but thinking even though barrel seems tight, if it is at least tighter than throat, none of this is a problem