The muzzle wear has nothing to do with how many rounds have been through that M28, nor does the trigger shoe marks. Look at the turn line. The cylinder star is also a clue. The star should have a matching serial number visible on the back side when it is pushed to the 'eject' position. If so, it's likely original and a lack of wear on it is significant.
Muzzle wear and amount of rounds don't coincide and I made no reference to that. It does indicate it's been a holster for a certain amount of duty time and the blue being rubbed off the muzzle and/or the cylinder would detract from it 's price for me in a pistol of this kind and the price involved. I'm disturbed by the fact the guy told me that was not wear at the muzzle and I don't think he's being exactly truthful about it. As for the star, you can barely see that much less try to make out a number of any sort.
Besides, who cares? I will unabashedly admit to overpaying for guns I wanted. After all, I'm only keeping myself happy. If I didn't have a slightly older one in similar shape, I'd be a buyer at that price. I didn't get the box or papers, and my grips aren't correct either. Beauty (and value) is in the eye of the owner.
Enframe