Car gun reliability
- Thread starter cnemeth
- Start date
Onward Allusion
New member
Unless you're going off-roading and even then, your mags are going to be fine. I've had loaded mags in my trunk for years and they always shot fine when I rotated out the ammo.
I don’t have a car gun so to speak but I seriously doubt it. I would imagine the ammo in a mag gets more jostled in day to day carry and administrative handling then in driving, unless you are desert running. 
What I would worry about with a polymer frame Gun would be the constant heat and cooling cycles on the ammo and polymer if a polymer framed Gun although I suspect both would be fine for a good long time.
What I would worry about with a polymer frame Gun would be the constant heat and cooling cycles on the ammo and polymer if a polymer framed Gun although I suspect both would be fine for a good long time.
HistoryJunky
New member
I have a revolver as my "car gun" but no real reason for it. They would not be subjected to the issues you speak of though.
I just keep my .357 in my vehicle because I go shooting after work at a local range fairly often.
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I just keep my .357 in my vehicle because I go shooting after work at a local range fairly often.
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If I am not mistaken, most police officers carry firearms and magazines on their belts while driving or riding in cars (or motorcyles) most days, so they are subjected to the jostling around of the car as well as all of the movements of a person getting in and out of the car.
I think you are worried about a non-issue.
I think you are worried about a non-issue.
insman1132
New member
Can't imagine any scenario where the gun or ammo would be negatively affected.
Drive with confidence.
Drive with confidence.
Bartholomew Roberts
Moderator
Vibration from riding around in a vehicle can loosen screws that are not loctited. I’ve seen everything from sight mounts to pistol grips and AR buffer tubes back out as a result. I don’t think most pistols have much that could work loose aside from a grip panel; but with the increased use of red dots, sight mounts might still be an issue.
I can't imagine it would be an issue with normal attentiveness. Any defensive weapon needs to be shot and maintained on a regular basis, especially one that is carried in my opinion. That includes revolvers. Yes, I know there are some who've been carrying the same ammo since the seventies, but whether it is on my belt or in my truck, I shoot it and replace it every couple of months at least. That and a regular wipe down and inspection are my minimum standards.
As part of a test on ammo, I left some loaded magazines in my car 24/7/365 for at least two years. The ammo was premium self-defense ammunition and although I didn't chronograph it, it seemed to be unaffected and all of it fired with no detectable issues. The magazines worked just fine.
I didn't just throw the mags into the trunk at let them rattle around. They were in a typical zip-up soft gun case and placed in the car so that the case was not moving around or having things bump into it.
That was with one type of ammunition and one type of magazine, so I can't say that any ammunition or magazines would be unaffected, but I think that any high-quality ammunition and decent quality magazines are likely to do just fine in the kind of conditions I describe above.
I didn't just throw the mags into the trunk at let them rattle around. They were in a typical zip-up soft gun case and placed in the car so that the case was not moving around or having things bump into it.
That was with one type of ammunition and one type of magazine, so I can't say that any ammunition or magazines would be unaffected, but I think that any high-quality ammunition and decent quality magazines are likely to do just fine in the kind of conditions I describe above.