I have several semi-autos / admittedly mostly higher end guns...but virtually no issues thru them....and some have over 25,000 rds thru them...
Wilson Combat 1911..5" gun/9mm...84,000 rds and counting ( its 7 yrs old )...at around 40,000 rds I did break an extractor...but that did not shock me / it has run 100% since ( my primary range gun )
Wilson Combat 1911..5" gun/.45 acp...25,000 rds and not a single issue. This is my primary carry gun.
Sig 226's ...in 9mm ( 12,000 rds no issues ) about 10 yrs old
Sig 226 ...in .40 S&W...( about 5,000 rds and no issues)
Sig X-Five ..in .40 S&W...about 10,000 rds and no issues...
Sig 239's ...in 9mm and .40 S&W...only 2,500 rds each ..but no issues.
( I cannot say the same about my Kimber 1911's - even out of their custom shop, or an Ed Brown Kobra carry 1911, or a Les Baer 1911 Monolith...all of those guns had a number of issues...)...but the Ed Brown only had a few..the Kimbers and the Les Baer were nightmares../ and all 4 of those guns are gone now, happily replaced by the Wilsons).
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I keep them clean and well lubed...
I replace the recoil springs at about 3,000 rds..
I replace the main spring / hammer strut spring at about 20,000 rds...
I strip and clean the mags about once a month ...or every 6th range trip...
I strip the gun to a bare frame about every 6 months or 6,000 rds.../whichever comes first..
and I think all that does make a difference...
Wilson Combat 1911..5" gun/9mm...84,000 rds and counting ( its 7 yrs old )...at around 40,000 rds I did break an extractor...but that did not shock me / it has run 100% since ( my primary range gun )
Wilson Combat 1911..5" gun/.45 acp...25,000 rds and not a single issue. This is my primary carry gun.
Sig 226's ...in 9mm ( 12,000 rds no issues ) about 10 yrs old
Sig 226 ...in .40 S&W...( about 5,000 rds and no issues)
Sig X-Five ..in .40 S&W...about 10,000 rds and no issues...
Sig 239's ...in 9mm and .40 S&W...only 2,500 rds each ..but no issues.
( I cannot say the same about my Kimber 1911's - even out of their custom shop, or an Ed Brown Kobra carry 1911, or a Les Baer 1911 Monolith...all of those guns had a number of issues...)...but the Ed Brown only had a few..the Kimbers and the Les Baer were nightmares../ and all 4 of those guns are gone now, happily replaced by the Wilsons).
-----------------
I keep them clean and well lubed...
I replace the recoil springs at about 3,000 rds..
I replace the main spring / hammer strut spring at about 20,000 rds...
I strip and clean the mags about once a month ...or every 6th range trip...
I strip the gun to a bare frame about every 6 months or 6,000 rds.../whichever comes first..
and I think all that does make a difference...