Chambering the First Round ... again

[opr1945]

1. I have read that if you chamber a round, remove it, and chamber it again....the bullet will be pushed further into the cassing and when fired could have to much pressure and destroy the gun. How many time does it take for the round to become dangerous?

2. how long is it safe to leave a gun loaded, ready to go in a safe, without having to empty clip to give it a rest?

thanks.

[DefensiveCarry.com]

[Sporty79]

As far as I know both are myths.

[Bud White]

yes you can have bullet setback and have it crank up pressures enough to blow a gun.. how many times cant say havent pushed my luck it varys buy gun and caliber


As for how long can you leave a clips loaded i suppose you could leave a M1 Garand clip loaded forever


if you mean a magazine same thing it is the actual cycling of the mag spring load unload that wears the springs


Trya search you will find a lot of other posts on this subject

[fatboy97]

1. You might want to buy a caliper and check for yourself.

2. I unload my magazines when I go shooting and I don't want to shoot my JHP's, otherwise I have a few magazines always loaded in my guns. I think the magazine will wear out first, but I can always replace the spring if it's not feeding correctly. I give all of my magazines a workout a couple times a month.

[aus71383]

I've fired some pretty smashed looking bullets in my gun - it didn't blow up. I think I was lucky though....I don't make a habit of it. If it looks wrong, it probably is. Magazine springs wear out depending how often you use them. Leaving them loaded doesn't hurt anything.

Austin

[StevePVB]

I've fired some pretty smashed looking bullets in my gun - it didn't blow up.
Austin

Why? And, I assume you don't strictly mean "bullet". As in the part that flys out of the casing.

[Cupcake]

I use standard pressure rounds in a gun that is rated for +p. My theory is that even if I backseat a little, I should be OK. I still try to keep it down to 5x.

[obxned]

When I first read albout 'set-back', I purposely chambered and rechambered the same round dozens of times each and measured. Never could find a bit of difference from never-chambered rounds.

Is there a cetain caliber or brand that this is more likely to happen with?

[NYcarry]

I chamber an extra by hand, so no worries there.

[Bud White]

When I first read albout 'set-back', I purposely chambered and rechambered the same round dozens of times each and measured. Never could find a bit of difference from never-chambered rounds.

Is there a cetain caliber or brand that this is more likely to happen with?

40s are good for it


also depends who made the rounds to begin with .. I have chambered Winchesters before and seen setback when i take them out 1st time with 45's then i have had same style of winchesters but different box that have take 5 reloads .. 5 is the max i will reload if i see no set back or measure no set back

[tegemu]

Nitroglock. Your reply implies that you insert a round into the chamber by hand and then insert your magazine. If so, this can damage your extractor on a 1911, I don't know about other guns. The proper way to do it is to insert a magazine, cycle the slide to insert a round into the chamber, remove the magazine and replenish the inserted round, then reinsert your magazine.

[Pitmaster]

I generally take several rounds out of the magazine, mix them up, and then reload the magazine for some randomization. Occasionally I will take all of them out.

[Tangle]

First, setback is a real problem. So much so that at least one manufacturer (don't recall which it is, but seems like it is Sig) will not honor the warranty if they discover a round has been chambered more than once.

I have done tests on Sigs, Berettas, H&Ks, and M&Ps. I got significant setback with all of them, the M&P being the worst by far.

Many of us have to load/unload daily. If we don't reload a SD round more than once, we're faced with buying new ammo frequently. So here's what I've started doing.

I load a round directly into the chamber by hand; there's no risk of setback whatsoever. Then I drop the slide and insert the magazine. Some claim that this practice will break the extractor; some designs are probably more susceptable to this than others, e.g. 1911s with internal extractors.

Beretta however, for both the 92FS and the PX4, describes the manual chamber loading method in the owner's manual as a legitimate way of loading a round, so it sure shouldn't be a problem with the PX4 and 92FS.

For the M&P, I purposefully bought the model with the magazine disconnect. To 'unload' the M&P, I simply remove the magazine and the gun won't fire, so I can leave the round in the chamber. Yes, I realize that's depending on a mechanical safety device. Plus, I can't say that I'd recommend this as a longer term 'unloading' method. One place I do this is when I have to leave my gun in the car. I pull the mag and take it with me. If someone breaks in my car, they'll have a gun with no mag, that won't shoot. So even if they buy ammo, they can't shoot it without buying a magazine.

[CelticWolf]

Its a magazine not a clip. Thank you.

[Anubis]

It may or may not be mythical. To cover all bases, if I chamber a round and remove it unfired, it goes in my "shoot next" box. So most rounds are chambered only once, a few twice.