N00b reloading question concerning Glocks.

[Mosin Man]

I recently reloaded my first batch of rounds, only did 10 9mm rounds, wanted to make sure my rounds would fire prior to mass reloading the rest of my stuff.

My local gunstore also had a sale on reloaded rounds a few weeks ago and I ended up purchasing about 300 9mm reloads.

So my wife and I went to shoot last weekend, we ended up using my wifes Glock19 to test first some of my reloaded rounds, I read that you shouldn't fire reloads with a stock glock barrel so I purchased a KKM Precision barrel.

My reloads fired well, but when we tried using one of the reloads I purchased from the gun store, whenever we tried to load one in, the slide would not fully slide home, thus causing a jam, and the only way we could send the slide home was to whack the butt end of the pistol against something hard.

Its weird, my reloads work, but the stuff I bought at the gun store doesnt, when we got home I checked with my calipers and the size and diameter seems up to spec... any ideas?

So good news is my reloads work... bad news is I have about 297 rounds of 9mm reloads I cannot use.

[CALI SHOT DOC]

I would check the COL to see if its to long. It could be the crimping, maybe not crimped enough? Dumb question but are you sure they are 9mm lol. I've been shooting miwall reloads through my stock glock barrel and now my reloads and have never had an issue.

Take your barrel out and drop them in and see what happens. If it drops ok then i'd think perhaps something with the ejector

[BSlacker]

Remove the barrels try dropping a round of each yours and theirs in the stock barrel and the aftermarket barrel. I quess that the leade on the KKM is a little shorter and the gun store ogive is a little different leading to the bullet hitting the leade before it fully chambers.

[rsrocket1]

Did you check the overall length of the store reloads? If it is the same, also look at the profile of the bullet compared with your reload while they are sitting on a table. I would guess that the store bought reload bullet ogive is sitting higher than your reload. That might make it engage the rifling sooner thus causing the jam. In any case, that is not a safe situation because it sends the chamber pressure through the roof (and maybe eventually your chamber too).

You could
1. Seat the bullet deeper with your press. Unless the cases were crimped, it does not harm the bullet. Beware that if the bullets were loaded "hot" with a max charge, you may be shooting the pressure way up. 0.01" can send the pressure up by 500-1000 psi.
2. Pull 297 bullets and reload them with a charge you know is safe and reseat the bullets.
3. See if you can return the bullets for a credit or refund (unlikely due to liability for the store). You can demonstrate the failure to the store owner to help your cause.
4. Sell the bullets.

[HighLander51]

You cannot check crimp with a calipers, only overall length. To check crimp you either need a case gage or drop them into the barrel chamber, as already stated. Most aftermarket barrels have shorter chambers than factory barrels so they can be finish reamed to suite your own loads. DO NOT force the slide home if it stay out of battery. Instead hold the slide with your left hand and forcefully push on the grip until the side opens. Do not continue with those rounds.

All gun makers say no reloads. I have shot nothing but my own reloads thru all my Glocks, and have been since 1992. Everyone I know that shoots competition runs their own ammo.

[rg1]

Factory Glock barrels are perfectly safe for handloads using jacketed or plated bullets, just don't shoot lead bullets thru the Glock barrels. The rifling isn't safe for pure lead bullets and lead build up may occur. I'd guess the chambers are shorter in the aftermarket barrel and the bullet is seated too long in your store bought reloaded ammo. Possibly the bullet is contacting the rifling causing the slide to not lock. DON'T BANG ON THE SLIDE to try to make the slide close or you may be an accident waiting to happen. Even if it did go into battery you could be creating a round that would be overpressure.

[downfall]

I had a similar problem with my G17 and reloads, which was how i was introduced to the Glock Bulge. The Glock chamber is a bit oversized for reliability, but this causes the brass to bulge towards the bottom. Resizing dies usually do not go down far enough on the brass to get the bulge out, so if you bought some reloads in which the brass cases were first fired in a Glock and then reused without taking the bulge out you will have this problem.

I got a case gauge and run all my brass through them after resizing to be sure I don;t have this trouble any llonger. REdding and Lee make dies specifically for removing the Glock bulge from brass.