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December 21st, 2013, 09:45 PM #1Super Member
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Do Your Pistol Mags Drop Free in the Cold?
I had the chance to shoot a CZ P-07 recently (around 40 degrees out). What surprised me was that the mags ceased to drop free...oddly enough, my brother's M&P40 mags would not drop free either. Do any of your mags not drop free in the cold?
PS: I just tested this to confirm it by sitting the CZ in the freezer for 15 minutes, and afterwards, the mags would not drop free at all.Hunting is NOT a 2nd Amendment Activity
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December 21st, 2013, 09:50 PM #2
Re: Do Your Pistol Mags Drop Free in the Cold?
Metal expands when cold. Thusly proving your experiment.
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December 21st, 2013, 09:51 PM #3Super Member
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Re: Do Your Pistol Mags Drop Free in the Cold?
Nah, the plastic frame contracted. The mag was not placed in the freezer.
Hunting is NOT a 2nd Amendment Activity
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December 21st, 2013, 10:36 PM #4Banned
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Re: Do Your Pistol Mags Drop Free in the Cold?
Metal actually contracts when cold. Perhaps the pistol shrinks more than the mag, or a lack of lubrication causes the failure to drop free.
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December 21st, 2013, 10:52 PM #5Super Member
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December 21st, 2013, 11:45 PM #6
Re: Do Your Pistol Mags Drop Free in the Cold?
If it is a poly gun, there are two materials at play. The Polymer frame and the metal Magazine. Each will react at different rates to temp changes, and with tolerances that are already close, this could cause the hang up.
I just put my M&P out in the sun room, and I will go back and try it out in a few minutes.
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December 21st, 2013, 11:51 PM #7Senior Member
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Re: Do Your Pistol Mags Drop Free in the Cold?
It would depend on the polymer, the more water absorption of a polymer the more it could contract or expand. The companies never tell you want blend of polymer it is, they keep it a secret. You would think the manufacturers would cycle test the frames in a temperature chamber before releasing but who knows.
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December 22nd, 2013, 12:09 AM #8Super Member
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December 22nd, 2013, 12:30 AM #9Grand Member
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December 22nd, 2013, 12:45 AM #10Super Member
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Re: Do Your Pistol Mags Drop Free in the Cold?
I agree, except that that reputation is founded upon their steel framed pistols. So far, their polymer (as a material) has not shown itself to be quite up to par as of 2013. Their designs are awesome! I love the P-07, but it would be leaps and bounds better if they somehow figured out how to just tighten it up overall.
Check out these pictures...this is an established issue with the polymer CZ's, but have been deemed merely cosmetic by the company. This may be the case, but I think they will not quite make it in the real big leagues until they straighten this type of thing out (literally)...you just don't see it with major names like Glock and S&W.
http://s881.photobucket.com/user/sti...?sort=3&page=1Last edited by StingyGunner; December 22nd, 2013 at 12:53 AM.
Hunting is NOT a 2nd Amendment Activity
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