Wore out one, several to point of needing major overhauls.....
I bought one of the first Berretta TomCats in .32acp
My favorite load was a factory duplication of 78gr Cast RN over a mere 1.7gr of Bullseye for 770fps. It was amazingly accurate, shooting ~3"groups at 25yds to Point of Aim.
I shot a lot of Fiocchi 60gr HP for practice and carried the gun with that ammo as a back-up for about 5yrs.
After perhaps 3,500rds, the slide cracked longitudinally starting at the top center of the slide and ran back towards the firing pin. I returned it to Berretta of possible replacement of the slide. They stated that it also had a frame crack that I was unaware of. They replaced it with a new one. I traded the new one in as I had won a KelTec in .32 that replaced the Berretta.
I've got one "wore out" S&W Mod 10-4 that was built into a PPC gun by Travis Strahan of Ringgold GA back in the late '70s. When I bought the gun it had been rebarreled since being rebarreled by Travis with a bull match barrel. The subsequent barrel had been set back and the throat recut and barrel/cylinder gap set by someone who didn't know what they were doing. I had it done again. After about 3yrs and approx 75,000rds, I had it rebarreled. In two more years I won another Mod 10 at the 1995 NRA PPC Nationals. I had it built into a PPC revolver by having a match barrel installed and I did the trigger work myself. I have replaced the barrel twice since, have set-back the barrels twice each due to wear on the throats and replaced once due to splitting the forcing cone with a squib. (Sorry, it was a "money" match- and was the next to last shot in Match 1 at the 15yd line. I tried to "shoot" the squib out, split the forcing cone and locked up the gun- but, but I got to go get the spare and finish the match- won a barrel to replace the damaged one !!! but, I don't recommend the practice except under dire situations). BTW, one bullet hit the X, the other was a "10"!
That gun was overhauled in 2004 and now shoots the best it ever has. But, it's starting to "slip" a little now, so, I have a BarSto barrel ready to go on it before the Nationals next October.
Round count to date is over 1,000,000rds. Barrel replaced twice, hand replaced twice, cylinder corrected for end-shake three times. Cylinder, frame, hammer, trigger, all original. Still has original blue, "most of it" that is...... Its a 10-8. Needless to say the double action is like sliding two pieces of oiled glass. About an 8-9lb double action.
Still going STRONG !!!! Shot a 1485-103x two weeks ago in first match of the season. It'll still hold the X-ring at 50yds.
Can't say the same for me.............