Not the only one.
I'm surprised no one else noticed that... The M&P45c has a 102mm barrel, therefore that gun is prohib in Canada. It is most likely a re-post from another forum. But still, it's good to hear that the shooter was uninjured.
M&P45c Kaboom
- Thread starter Wendell
- Start date
Not the only one.
I'm surprised no one else noticed that... The M&P45c has a 102mm barrel, therefore that gun is prohib in Canada. It is most likely a re-post from another forum. But still, it's good to hear that the shooter was uninjured.Pretty impressive. That has got to be a double charge of what, plutonium?
I am picturing a guy with a spoon of N-310 and a swaging rod stuffing the case full, packing it down, topping it off, packing it down, then cranking a bullet in and hanging on the press handle as he tries to get it down to 1.275 OAL...
I mean seriously, that's a major KB.
I am picturing a guy with a spoon of N-310 and a swaging rod stuffing the case full, packing it down, topping it off, packing it down, then cranking a bullet in and hanging on the press handle as he tries to get it down to 1.275 OAL...
I mean seriously, that's a major KB.
Not really, man...this is pretty much the equivalent of putting a stick of dynamite in your gun.
If you put enough powder in there, you'll blow it up. The gun could be flawless and brand new. It'll still die a horrible death.
If you put enough powder in there, you'll blow it up. The gun could be flawless and brand new. It'll still die a horrible death.
As already mentioned, some powders with greater volume are less susceptible to inadvertent double (or triple) charging.
That is to say, a double (or triple) charge would be more obvious to the alert reloader.
Like driving, and shooting, reloading deserves your undivided attention.
That is to say, a double (or triple) charge would be more obvious to the alert reloader.
Like driving, and shooting, reloading deserves your undivided attention.
Here's the original thread
Farewell my new M&P45c... Thanks dad. You schmuck.
<http://mp-pistol.com/boards/index.php?/topic/32088-farewell-my-new-mp45c-thanks-dad-you-schmuck/>
Farewell my new M&P45c... Thanks dad. You schmuck.
<http://mp-pistol.com/boards/index.php?/topic/32088-farewell-my-new-mp45c-thanks-dad-you-schmuck/>
I kid 
The weird thing about this KB is that the failure appears to be up closer to the muzzle.
The "normal" KB is one where an overpressure round (generally a double charge of powder in a reload, or the wrong powder, or both) causes the case to fail at the base. Instead of driving the bullet down the barrel, the pressure blows out sideways (or up, or down, or some combination) out a hole it rips in the casing at the breach, mangling anything in its way until the pressure dissipates.
When you see pictures of Kaboom'd guns, it is usually damage to the frame right around the chamber area, and to the chamber itself. Some pics here:
http://www.thegunzone.com/glock/glock-kb-faq.html
But when you look at that M&Pc, the slide is banana peeled out at the muzzle, and the barrel is split down the middle, but the chamber appears to be intact. That suggests to me that this was something other than a "normal" Kaboom. Some people have already suggested the possibility of a bullet being lodged in the barrel (normally you get that by loading a round that has a primer but no powder) and then firing another round at it.
Two things here though... a round with no powder only goes about an inch or less into the barrel; and two, if you fire a round with no powder it is blatantly obvious that something just went wrong (it sounds like more of a pop than a bang, there is no recoil, and the slide certainly won't cycle). You would have to be pretty dumb to just "tap, rack, bang" the gun.
A bit of a mystery. Massive, massive damage to hardened steel parts of the gun, and all up at the front?
Be very careful reloading. As you can tell from my post, I have had a few close calls reloading over the years, but fortunately I have not damaged any guns yet.
The "normal" KB is one where an overpressure round (generally a double charge of powder in a reload, or the wrong powder, or both) causes the case to fail at the base. Instead of driving the bullet down the barrel, the pressure blows out sideways (or up, or down, or some combination) out a hole it rips in the casing at the breach, mangling anything in its way until the pressure dissipates.
When you see pictures of Kaboom'd guns, it is usually damage to the frame right around the chamber area, and to the chamber itself. Some pics here:
http://www.thegunzone.com/glock/glock-kb-faq.html
But when you look at that M&Pc, the slide is banana peeled out at the muzzle, and the barrel is split down the middle, but the chamber appears to be intact. That suggests to me that this was something other than a "normal" Kaboom. Some people have already suggested the possibility of a bullet being lodged in the barrel (normally you get that by loading a round that has a primer but no powder) and then firing another round at it.
Two things here though... a round with no powder only goes about an inch or less into the barrel; and two, if you fire a round with no powder it is blatantly obvious that something just went wrong (it sounds like more of a pop than a bang, there is no recoil, and the slide certainly won't cycle). You would have to be pretty dumb to just "tap, rack, bang" the gun.
A bit of a mystery. Massive, massive damage to hardened steel parts of the gun, and all up at the front?
Be very careful reloading. As you can tell from my post, I have had a few close calls reloading over the years, but fortunately I have not damaged any guns yet.
Or that I can't CCW
Nines don't seem to have this problem (at least not as much), and this is why:
http://www.efunda.com/formulae/solid_mechanics/mat_mechanics/pressure_vessel.cfm
http://en.wikipedia.org/wiki/Cylinder_stresses
A 'pressure vessel' (here, brass) with a smaller inside diameter is inherently stronger.
http://www.efunda.com/formulae/solid_mechanics/mat_mechanics/pressure_vessel.cfm
http://en.wikipedia.org/wiki/Cylinder_stresses
A 'pressure vessel' (here, brass) with a smaller inside diameter is inherently stronger.
