5 Semi-auto's, only 1 never ever jammed.
I have, or, have had, 5 semi-auto pistols, but, I only have one that never, ever jammed, Beretta 92FS 9mm that I bought for plinking.
Sigma .40, jammed, but not often, I just can't hit anything with a .40, however, I shoot a S&W revolver model 360, .357 mag. 12 OZ. 3 1/8" barell more accuratly than the Sigma .40 and the Sig 239 .40 "Go Figure".
Sig. 239, .40, Jammed more than any gun I ever owned, purchased new, got rid of it after 1 year. I couldn't hit the target with it, however, I had a instructor shoot it accuratly, so, I guess I just don't do well with a .40
Ruger MK III .22, Great gun, Jams now and then, however, I have shot a couple hundred rounds through it now and then with no misfires.
Sig. P220 .45, The most accurate semi-auto I own, however, it seems to jam one time, every time I shoot at the range. Usually the second round doesn't chamber (could be limp wristing due to th SA ), I will be looking to nail down the cause.
The Beretta 92FS 9 mm, I purchased this gun for plinking at the range only, not SD, however, it turned out the be the only semi-auto that I own, that never ever jammed, EVER,. Fun to shoot, but, not nearly as accurate as the Sig. P220 /45
How do your semi-auto's stack up?