Yep, "carry up" is checked on new style S&W revolvers (non-pinned extractors) with
properly sized dummy rounds in the cylinder, since the new style extractor relies on cases to hold it in position so the hand can engage the ratchets.
FWIW, when we were being trained in the armorer class to cut new revolver extractors with the S&W cutting arm & hand tool we were repeatedly reminded to use properly sized dummy rounds in the cylinder so the cutting hand would cut the ratchets to the right length for the cylinder to be loaded and used live ammunition.
Creating excess drag by touching the cylinder (holding it back) was not a recommended method for properly checking carry up.
Double Action carry up is checked by holding the muzzle of the EMPTY revolver with one hand, and using the other hand to hold the grip (frame) with the other hand. The trigger is pulled back slowly (but not
Slooooooowwly ). The cylinder stop should enter each cylinder stop notch before the hammer falls.
In Single Action the stop should snap up into each of the stop notches by the time the hammer snaps into single action.
We were also told that sometimes the cylinder stop's snapping up into the stop notch might occur just barely before the hammer fell in DA or reached full cock in single action.
Slowly staging DA trigger strokes while trying to hold a steady sight picture is a common mistake made by some revolver users. A reasonably quick, brisk but smooth continuous trigger stroke, while holding the sight picture/aligned sights and following-through with the sight picture, can help reduce the tendency for the muzzle & sight picture to continually wander (preventing anticipatory flinching is helpful, too
).
Fragments? What kind of fragments? Copper? Lead? Powder?
I used to really dislike shooting Winchester .357 Magnum loads (which used ball powder) through both my issued service revolver and my personal revolvers. It often felt like I was being 'bead blasted'
, and my revolvers were 'in time', too.
It can also be rather amazing what can bounce back at you in the way of fragments sometimes, too.
Anybody else shooting at the same time? I've had the pleasure catching fragments from other folks as they were shooting, as well.
Excellent reason to wear eye protection.
Naturally, I have absolutely no idea what's happening with your particular revolver, since I'm not there.
You could call back and ask to speak to a revolver repair technician ... (not the same thing as a customer service person, although it's not uncommon to talk to one who used to be in production and is knowledgeable) ... to explain your experience and express your concern. They do warranty their products, and sometimes a warranty repair (parts replacement or other corrective action) is needed.
Just my thoughts.