[G27]

I have had a hangup twice now at the range. Each time I load 9 in the clip
and with the slide locked back, I load one manually to make 10.

Two hiccups in less than a 1000 rounds is not good.

When I load them manually, I insert the bullet, hold thr pistol downhill,
and realease the slide lock.

Twice the manual loading has not allowed the slide to lock all the way.

Any ideas on whats causing this? or other suggestions.

Rounds are Winchester FMJ Walmart target stuff.

Thanks.

[Navy joe]

You're doing it wrong. Glocks have a rather beefy extractor that does not like to ride over the case rim. Don't load your gun this way. Load your mags with as many as you can fit and leave them sit for a week or so. tenth round will then be much easier to load. If you want to load 10+1 for carry use a "barney" mag AKA an extra mag with just one in it or your spare mag and top thae mag off after you load the chamber with it. Everything that goes in a chamber should come from the mag...

P.S. Not many autoloaders like this done to them. Chamber load a 1911 like you described and you will kill your extractor tension, other guns susceptible to chipped extractors. Under normal operation the extracor does not ride over the case rim, as the round is released from the mag it slides up the breechface and under the extractor. Try it sometime with snapcaps(NOT LIVE AMMO!) by slowly hand cycling and watching the sequence from stripping from the mag, chambering, extractin, and then ejecting. Helps understand what the pistol does when it goes bang.

[G27]

I guess the answer is, mine is a 9+1. To load my clip and insert and let it load the gun, remove the clip and add one to the clip

[krept]

yes

after the first cartridge is chambered, eject the magazine, top it off, then reinsert firmly.