Witness video with different setups

[Intercooler]

[sqlbullet]

It sure looked to my like his failure to feed was actually a premature slide lock.  I didn't see him lock the slide back, but it was.  When he rotated the gun over the slide stop lever was clearly in the "up" position.

Not sure if it was his shooting grip or something with the gun.  Not a penalty in my mind if it only happens once or is attributable to grip.

[DM1906]

It sure looked to my like his failure to feed was actually a premature slide lock.  I didn't see him lock the slide back, but it was.  When he rotated the gun over the slide stop lever was clearly in the "up" position.

Not sure if it was his shooting grip or something with the gun.  Not a penalty in my mind if it only happens once or is attributable to grip.

I noticed that, too.  His second pistol (polymer) seems to have significantly more muzzle flip.  Combine that with "high thumbs" or a loose grip, and he's probably bumping the lock.  When he first pulled the mag, the round was out of presentation, half out of the mag.  Probably a weak mag spring, as well.  All or some of the above may equate poor reliability.

[pacapcop]

Im wondering on the Compact is he using the red follower high gloss mags.That round that was half presentation is not uncommon with the Red Follower Mags/High Gloss.My guess it is.

[gmtmaster]

Limp wristing the polymer gun.

[sqlbullet]

I have seen that much presentation in my guns before on "the next round".  Eg, fire a round, then safety on and drop the mag  The top round will have been pulled as far forward as it can be by the friction of  the round above feeding.

I am going with the loose grip, forward thumbs hitting the slide stop lever.

[pacapcop]

Splbullet,

I get that presentation with my Compact red follwer mags,not the case with the K10's black follower on the Match.

[sqlbullet]

Regardless of how the magazine round presented, it still looks very much to me like the slide lock is up on it's own.  That would mean any movement of the top round in the magazine forward had to occur during the feeding of the previous round.