The title of the thread is gap in a .22 revolver....I didn't realize the link that was brought into the thread describing B/C gap and end shake was about .22s as well
Anyhow - yes - .22 rim fire is a heeled bullet. & I agree there also, that very well could be why they are so filthy.
Although - - some of the Red Dot .357 mag loads I worked up once could give them a real run for the title of "Dirty bird" .
I absolutely agree with that....but....I also concluded long ago that B/C gap was/is much ado over nothing.Personally, I think close tollerances are from hand fitting and time consumption. Production line revolvers can't be held to that tollerance without being cost prohibitive which gives you .006" - .009". That's why FAs cost what they cost.
Chamber to chamber velocity variations can be a whole lot more than a "wide open" B/C gap(not really wide open per say, but something someone would consider as "excessive".)
However - w/FA, I believe a buyer has the right to be on the picky side.