Double powder charge?

First, virtually all semi-auto handguns leave a portion of the case head unsupported. Normally, under proper working pressures, this is not an issue.

Second, while it is possible for some semi-auto handguns to fire slightly out of battery, it's generally not likely to occur. Case head failures are very commonly mistaken for out of battery ignitions.

Thirdly, what type of reloaded ammo I this? Factory reloads such as Wolf???? Or some fly-by-night idiot who has no business reloading for themselves let alone for sale. The fact that you had a case where the primer fell out on its own is an indication that the brass is done and could be the cause of the head failure although I suspect an over-charge (or even both).

I would not fire even one more round of that ammo.

Spawn-inc, I hope you would be tearing those rounds down for components and not being foolish by shooting them :/

These were reloads sold by Moregun Supplies back in 2010. I am not sure if they are even still in business and they are no longer active on gunnutz. At the time, they were reputable to buy from.
 
One more picture showing improper resizing/crimping. I pushed lightly on the bullet and it fell inside the case. :(

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Yap did a double charge on 9mm shadow, went Big boom. Destroyed one mag and one extractor, gun back to normal now phew, that was a loud bang. Seriously that's why I tell all shooters, it is important Very Important to hold a pistol correctly - NEVER put your hand to cradle the stocks / magazine at the bottom just for these reasons alone.
 
I am thinking that this could be the result of a squib load fired prior to the round in question. The primer on the offending round has been struck by the firing pin as seen by the indent in it,with a floating firing pin the round has to be chambered to fire.
I came close to this when a squib round pushed the bullet into the barrel but ejected normally and another round made it halfway into the chamber, if the bullet had gone a bit further down the barrel the next round would have fired behind the stuck bullet and I am pretty sure the results would be the same as the OP's.
Or it could be a double charge.
 
I was weighing the whole cartridge. The weight of reloads ranged from 297 to 301gr. The 4 rounds that I suspect are overcharged had a weight greater than 306 gr. Of course this still could be due to variation in the brass and lead cast. I am ignoring this and assuming a typical 4.5 to 6 gr powder for 230gr lead cast bullets. The purpose was a quick way to sort out the outliers. I will have to pull the bullet and weigh the powder to verify the charges.

I hear if you move west there are free reloads!

i meant to post this last night, but i couldn't find the picture

exactly, brass cases can have a 5gr variation easily. but looking at the case it sure looks like it fired out of battery. i've had a 9mm blow up the same way, but it was my fault as i changed powders and decided it should weigh the same, i was new to reloading at the time. it was in a glock 17, which was just fine. the mag came out and my hands were covered in black. my first thought was when is the blood going to start gushing out, after 15 seconds i started worrying about my glock!

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Spawn-inc, I hope you would be tearing those rounds down for components and not being foolish by shooting them :/

had he been close, yes it would be used as components.
 
i would toss them all, unless you break them down. Moregunssupply is a tard, and i wouldnt trust him to run a hotdog stand, let alone with my life firing his shady reloads. Lesson learned, never shoot anyones reloads.
 
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