I saw this posted on another website that I belong to. I don’t remember if it was posted here, but that other kaboom thread got me thinking.
http://www.masslive.com/news/index.ssf/2011/04/2_east_longmeadow_police_offic.html
The weapon in question was a S&W M&P15. One of the members of the site posted an update that the weapon was examined and apparantly the ammo was to blame.
I don’t know if that’s true, but here is the info in case anyone wants to check it further.
Federal XM193 Lot #V492555
Oh man. I like to have this type of info, but I hate reading about these incidents. Again, glad no one was seriously hurt, which seems to be a common trend, at least. It sure does seem, that in several of the last handful of KB’s I’ve read about in the past few years, XM193 seems to be a likely cause. Probably because it may be the most widely used ammo, in high volume of fire training, but still…
I have yet to learn of an AR15 KB that was not caused by the ammunition.
Most KBs are out of battery discharges. AR 15 can’t so, aside from the chamber exploding/locking lugs breaking off.
Exactly. Whereas when a Glock 40 blows up I assume the round was fine but it must have been setback from being chambered twice.:suicide2:
I was thinking of M1 Carbine/Garands o.O
Everyone needs to read the first comment posted about the article. It seems S&W weapons are “junk” and that it was an “M n R” rifle. 
Ouch. Thanks for the info, just checked my lot #'s. While I see lots of complaints regarding XM193, it’s usually for the popping primers and not kabooms thankfully…
Thanks for posting that, may have to reconsider my purchase…
WOW…its fun when people know what they are talking about lol (sarcasm):sarcastic:
If you are seriously taking KB’s caused most likely by bad ammo, into consideration for a gun purchase, then I guess you shouldn’t buy a Colt then (sarcasm):
http://www.thefirearmblog.com/blog/2009/11/20/colt-ar-15-kaboom/
Come on people, KB’s have happened with probably MOST of the major brands of guns, over time. And what is the cause, 99% of the time?..the ammo.
Disclaimer: I don’t own any S&W products. In fact, as far as long guns go, I only own Colt and BCM uppers, and one DD.
Looks like that was also XM193.
Makes you wonder about the reason they don’t call it M193.
Here’s a link to the original post about the Colt Kaboom, by the rifle’s owner. If you read to the bottom, it turns out it was PRVI Partizan M193, not XM193.
:rolleyes:
havent people been having problems with XM193s getting blown primers (overpressure)? I’ve seen it a few times elsewhere.
The Peanut Gallery :rolleyes:
It will be interesting for follow this kaboom investigation in that there is a good chance that competent individuals will be involved.
What do you mean by “Blown Primers”? If you mean the primers pushed out of their pocket, that’s from too little pressure.
If you mean there’s a hole where the firing pin struck it, that’s a pierced primer and the firing pin is the culprit.
If you mean the primer falls out of the pocket and can be pushed back in with a finger, that’s an expanded primer pocket and that’s from pressure
Been looking for pics of the gun in the OP for awhile now. Anyone seen any?
I’ve noticed the exact same thing. And while the XM193 is common, so is the Winchester equivalent (Q3131 and Q3131A), not to mention various ammo including claimed NATO pressure loads from PMC and other high volume, relatively low cost brands. Why am I not reading about kabooms from Q3131, PMC and Prvi Partizan?
From this thread… https://www.m4carbine.net/showthread.php?t=79590
Post #26…
https://www.m4carbine.net/showpost.php?p=979407&postcount=26