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My husband and I bought each other 9mms for Christmas. He shot his for the first time today, a PT 24/7 PRO DS, and had problems from the get go. Problems include jamming, not firing, and a cartridge getting stuck in the chamber. We used both brass and aluminum. With the aluminum, one casing had a split roughly a quarter inch running length-wise. The brass casings bulged out quite noticeably. Both are 115 grain.
Can anyone suggest what may be wrong with the gun?
 

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Not to be unhelpful, but you might have better luck on 'The High Road' or 'The Firing Line' forums; this forum generally focuses on 1911 pattern pistols, so you may not encounter many folks here experienced with that model.

Sorry to hear of your new gun troubles, and best of luck getting them sorted out.

Larry
 

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Did either gun get at least a field strip, cleaning and lubed before taking them out to shoot ?
As far as the split or bulged cases, take some pictures of them and contact and send them to customer service.
There is a serious problem, ranging from firing out of battery to a seriously oversized out of spec chamber or a restriction in the barrel causing an over pressure situation.
 

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My husband and I bought each other 9mms for Christmas. He shot his for the first time today, a PT 24/7 PRO DS, and had problems from the get go. Problems include jamming, not firing, and a cartridge getting stuck in the chamber. We used both brass and aluminum. With the aluminum, one casing had a split roughly a quarter inch running length-wise. The brass casings bulged out quite noticeably. Both are 115 grain.
Can anyone suggest what may be wrong with the gun?
Sounds like trying to shoot 9mm in a .40 gun. Probably not, but just sayin'. Do the 'Plunk' test; take the barrel out of it and clean it - then take a live round and simply drop it into the chamber - it should fall into place with a 'plunk' sound as it stops. The cartridge headspaces on the case mouth - that is to say, the front edge of the case hits a ridge at the end of the chamber which stops the case from entering the barrel any farther.
Anyway, now the round should fall out if you invert the barrel.
Often new guns have to be broken-in to work right and this includes the magazines. Fully load each mag and let it sit for a few days. Empty the mags and exercise each one by rapidly working the follower all the way down and up with something like a slim piece of wood. Do this about 100 times and watch for any binding - the follower should glide easily into its top position if you let it up slowly.
Make sure the pistol is clean and lubed - see how it loads and extracts live rounds if you can do this in a safe place or take it back to the range and test it.
 
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