Bullets pushed in !!

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R1-Dave

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I just purchased a few boxes of 9mm and later noticed that one box had been slightly squished on the top. 5 out of the 50 round box were damaged. The bullets are pushed in a little ( 18.64mm total length for non-damaged and the worst of the bunch is 15.02mm ). Do you think I should try firing them off or safely discard them ?? I've never had any like this and I'm not sure what the outcome will or could be.
 
go for it

i was taught in the army that they will still fire normally, but of course there are always different rules of throught
 
When a bullet is seated too deeply there will be an increase in pressure developed upon firing. If your gun is in good condition and you only have a few then fire them off to dispose of them. You will notice an increase in recoil as a result.
 
Thanks for the quick replies. I figured it would be ok. The gun that will be firing them is an M&P 9mm, less than a year old.
 
I doubt that you will notice much difference from the rest of the box if you fire them. If its a very hot load it might increase pressures some but factory loads have a large safety margin built in.

I would use them in a gun thats in good condition. My first thought would be how they would feed.
 
Since you don't know what powder they used, it is best to chuck them out. If they used a fast powder with high pressure, then pushing them back that much will make a HUGE difference in pressure.

If they used a slower powder then there will be a pressure increase, but will likely stay below proof load pressure.

I did some calculated pressure trials using QuickLoad software, only changing OAL, and was amazed at how quickly the pressure could increase with some powders.

Will firing do anything to your gun? don't know, but you might not have much left of the "factor of safety" that is built into the gun's design.


EDIT:
Just to see, I ran QuickLoad using a 125gr FMJ with max pressure load of Titegroup that generated 34,000 psi at 1.12" OAL

At 0.98" OAL the calculated pressure was 94,000 psi

Using a 115gr bullet the pressure only increased to 79,000 psi

If they were using a powder that generates less pressure than max to start, and if it is a slower burning powder, then the pressure jump is not as great. I intentionally chose loads that would make the greatest "impact" :evil:

Using slower powders and not max loads the pressures only jumped to 65K psi.

Yes, these are "theoretical" numbers BUT STILL ........... :eek::eek: :runaway:
 
Last edited:
SandRoad said:
Since you don't know what powder they used, it is best to chuck them out. If they used a fast powder with high pressure, then pushing them back that much will make a HUGE difference in pressure.

If they used a slower powder then there will be a pressure increase, but will likely stay below proof load pressure.

I did some calculated pressure trials using QuickLoad software, only changing OAL, and was amazed at how quickly the pressure could increase with some powders.

Will firing do anything to your gun? don't know, but you might not have much left of the "factor of safety" that is built into the gun's design.


EDIT:



Just to see, I ran QuickLoad using a 125gr FMJ with max pressure load of Titegroup that generated 34,000 psi at 1.12" OAL

At 0.98" OAL the calculated pressure was 94,000 psi

Using a 115gr bullet the pressure only increased to 79,000 psi

If they were using a powder that generates less pressure than max to start, and if it is a slower burning powder, then the pressure jump is not as great. I intentionally chose loads that would make the greatest "impact" :evil:

Using slower powders and not max loads the pressures only jumped to 65K psi.

Yes, these are "theoretical" numbers BUT STILL ........... :eek::eek: :runaway:
Click to expand...

Intersting stuff.....
If it helps, they are AE 124gr FMJ and I have no idea what type of powder they use.

Maybe I'll just clamp them and yank the bullet out with vice grips...... yeah, that souns like a good idea !:rockOn:
 
like sandroad said the OAL can have a big differnce in presure levels i would toss the 5 rounds....welll not tosss but dispose of safely....
 
A month ago i wold have said "Shoot them".

But since then I fired a suspect round in my pistol and blew off the grip panels, the extractor and damaged the slide release. Would have been so much easier to just toss it.
 
Why risk it, do you want a cheap little 10 cent round to RUIN your 500/800 dollar handgun. I had the same situation and asked myself..."Do I want this sh*tty little .223 round to blow up my $2,000.00 AR-15?"...I think not :)
 
Thanks for the opinions guys ! I'm not going to fire them.
Like P.B. said, it's not worth the risk. I just wanted to know what could happen, now I do.
 
downwithdion said:
does your shooting club have a dud ammo disposal? if so that would be the ideal place too put them.
just my $0.02
Click to expand...

Seconded. Why risk your $600-700 toy not to mention your safety? I realize experienced shooters/reloaders might be perfectly in their right to say shoot them, but really, this is the internet, and your safety/personal property isn't worth it. It really has nothing to do with whether it's actually OK or not in my mind, it's about mitigating risk and common sense.
 
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