One in the Chamber

This is a discussion on One in the Chamber within the Carry & Defensive Scenarios forums, part of the Defensive Carry Discussions category; Obviously best practice when carrying is keeping one ready in the chamber. My question to everyone is how often do you dechamber that round? And ...

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Thread: One in the Chamber

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    Member Array FLGlocker23's Avatar
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    One in the Chamber

    Obviously best practice when carrying is keeping one ready in the chamber. My question to everyone is how often do you dechamber that round? And when you dechamber round What do you do with round to avoid setback. Do u put it back on top of mag or cycle ammo in mag or what? I've done some studying up on how putting that round back on top of mag and chambering it again and again causes bullet setback. Consequences can be severe and costly.

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    VIP Member Array varob's Avatar
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    If I'm shooting that gun, I'll pop out the mag and usually fire off the chambered round.
    If I'm doing a cleaning, I'll eject the round, then when I reload I just use the next one in the mag and top it off with the one that came out of the chamber.
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    If I need to unload the gun someplace other than the range, the round from the chamber goes to the bottom of the magazine.
    On range day, the I empty the daily carry magazine into a target and when all is said and done, the mag gets loaded with fresh SD ammo.
    Range day comes often enough that my carry ammo never really gets old and any interim unloads never result in any rounds being chambered a third time.
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    Member Array RockingGlock32's Avatar
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    I leave it loaded all the time when I go to bed I remove the holstered weapon and set it on the night stand for hone defense.

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    We've talked about this a few times before. There are some really helpful suggestions if you look at some of the old threads.

    I take the round out of the chamber when I put mine in the safe. If I'm home it's on me or next to the bed while I'm sleeping. If it's in the safe that means I'm not home and somewhere I can't or won't carry. If it's in the safe, the wife or one of the kids may be going for it in an emergency. They don't train/practice as often or as intensely as I do and I don't want them to have an unintended discharge trying to get it out of the safe (it's the pistol box type with the drawer). They all know that if they go for a gun they'll have to rack a round. I know that handicaps you in an incident, but it's the compromise we came to because of my storage method.

    I keep a pair of cheap calipers on the dresser next to the safe, and when I'm loading up I check the top couple of rounds that have been rechambered a few times. Bullet setback from rechambering is somewhat platform dependent, and I've yet to find that it's a problem with my XD9SC using speer gold dot. I still check regularly, though, and use the few rounds that have been rechambered many times each time I go to the range, because someone mentioned before that multiple rechamberings can cause primer damage also.
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    I leave it chambered. It gets shot when I go to the range. I see no logical reason to remove a round from the chamber.
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    Member Array hoghunter84's Avatar
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    I think setback is a myth on modern working firearms. I've used a micrometer on my chamber rounds where I would chamber and eject the same round often and they were the same OAL as the rest.

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    I have seen set back so it is no myth. Anyhoo, I shoot my EDC every week and top it off so no issue for me.
    pittypat21 likes this.
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    Quote Originally Posted by hoghunter84 View Post
    I think setback is a myth on modern working firearms. I've used a micrometer on my chamber rounds where I would chamber and eject the same round often and they were the same OAL as the rest.
    Oh contraire! I ran an "unscientific" experiment a while back, rechambering a reload and two commercial rounds (Speer GD & Win PDX1) 10 times each. The reload setback >.1 inch, as did the Speer Gold Dot. The PDX1 barely budged. The reload I expected some, but the Speer surprised me how much it moved.

    The whole question is moot if one stops unchambering every time the gun is unholstered. There's really no need unless the gun is being cleaned or passed over to someone.
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    VIP Member Array LimaCharlie's Avatar
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    Mine usually stays loaded until I go to the range. I always shoot my carry guns as carried when I get to the range.
    I carry a gun, because a Cop is too heavy.

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    VIP Member Array Adam42's Avatar
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    Generally at the range I shoot less expensive rounds for target/practice. With the exception of the carry round that has been chambered. I am not sure that it makes a heck of a lot of difference one way or another. In Nam in the 60s you fired a lot of .45acp ammo that had been manufactured 15 years earlier or better during WWII. It all worked very well, ammo, if kept correctly will last a very long time, as we all know.

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    I never encounter this issue or many others as I have gone back to a revolver. A revolver has its own issues I am sure. I was a die hard 1911 man for years. Then went through the Glock/Sig phase. I did have the setback issue with semi auto sometimes. I kept a box in the safe and put the ejected round in it. Loaded a new round. Fired the "used"rounds when I practiced. Pain sort of to do but I always had a fresh out of the box first shot for carry.

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    VIP Member Array sixgun's Avatar
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    If I have to unload like at the range. Ill rotate my mag of sd ammo. Ill put the top round at the bottom so it wont encounter a problem like setback.
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    Quote Originally Posted by GraySkies View Post

    I keep a pair of cheap calipers on the dresser next to the safe, and when I'm loading up I check the top couple of rounds that have been rechambered a few times. Bullet setback from rechambering is somewhat platform dependent, and I've yet to find that it's a problem with my XD9SC using speer gold dot. I still check regularly, though, and use the few rounds that have been rechambered many times each time I go to the range, because someone mentioned before that multiple rechamberings can cause primer damage also.
    That's a good approach. Personally I've sometimes set a "fresh" round primer-down on a flat surface next to a rechambered round, and compared height. I know I can see a 0.030" difference pretty easily, so this seems to be sufficient.

    I've read that it can be a bigger problem with .40 than 9 or .45, since the cartridge has little empty space to begin with, so setback can drastically increase chamber pressure (which is high to begin with).
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    Member Array FLGlocker23's Avatar
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    Quote Originally Posted by hoghunter84 View Post
    I think setback is a myth on modern working firearms. I've used a micrometer on my chamber rounds where I would chamber and eject the same round often and they were the same OAL as the rest.
    I've seen it with my own eyes too. A friends mag he unloaded. I told him constant re chambering is not good due to set back. We emptied his mag and lined the rounds up. Sure enough one was visibly alot smaller than the others. We threw it away immediately after I showed him a view YouTube videos

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