Off Topic, But Need Help:

[Duce]

Folks: Watched a program where they tried to purposely blow up a firearm,
they had minimal results. This brought to mind a post either here or on the old board that provided a link to another that showed a TC Contender that had blown in a rater dramatic fashion. Does anyone remember this, and can direct me to it? Thanks, Just Curious:   Duce:

[hawgmaster]

The show ? was it mythbusters ? If so I saw that the other day. Pretty cool stuff. I want their job  :twisted:

[Leftoverdj]

Duce, I remember the Contender, but don't know where to find it. That one split along the line of scope mount holes. There was speculation an overly deep hole stated the process.

Local gunstore has or had a K frame S&W that was completely wrecked. My best guess is that a double or triple charge of Bullseye did that. Saw an FN-49 that had slamfired before the bolt fully locked. Gas vented out the back and bulged the action pretty good. Seen a bunch of shotguns blown up due to barrel obstructions. Seen a couple of 1917 Enfields that came apart, probably because of faulty heat treatment.

No doubt in my mind that you can blow guns up, but it's pretty rare, all things considered.

[mitchell]

you may want to try the T/C forum might have better luck.

i don't remember it.

[fuzzy]

Here`s a link to a savage that blowed up
http://www.hpmuzzleloading.com/WorkPage.html  Rich

[Duce]

Thanks Guys: Yes it was Myth Busters, shoot they didn't half try. Later   Duce:

[Duce]

Folks: I posted this on the TC board also, here it is:
 http://members.tripod.com/cdk357/444blowup.html

Be Afraid, Very Very Afraid: :eek:  :eek:  :eek:  :eek:
What's so good about this forum the people that frequent it!!!
Be Careful: :-) Duce:

[safetysheriff]

Duce'

if you look at image 05' it looks like somebody used a chamber reamer that did not include the freebore portion of it!    there is such a sharp step adjacent to the rifling -- if my take on this is correct from the pics' -- that in the portion of the barrel towards the top right of the picture i see there is no freebore at all.   it actually looks like somebody took a .44 mag' neck-style reamer and cut a deep chamber with no leade/throat.   that in itself raises pressures, of course.  i'm too tired to get out the drawings from SAAMI and ANSI tonight to give you the usual angles included in such a chamber, but that's what it looks like to me.  

you may notice that the sharp taper from the cartridge mouth leading to the throat appears to have been cut into the barrel.....but that is not enough.    the chamber itself may have also been a 'short' one besides what i've already said.  

.444 Marlin brass is usually Very Strong stuff.   that's seemingly part of the reason why J. D. Jones has used it for hotrodding/wildcatting of some very effective 'giant killers'.    

interesting circumstances.

glad he healed up.

ss'

[Fred M]

safetysheriff.

There are some custom gun smith that will order a reamer without freebore and lead. This allows them to ream a custom lead and free bore with a special throating reamer for a specific bullet.

I have a 30BR that has no free bore and has only a lead for short 118gr to 125gr bullets.

On  a lot of hunting rifles the free bore and leads are over done causing blow by in a place were you don't want it. The throat should have no more than a 1/2 Thou radial clearance.

Yes if the smith forgot to ream the free bore and lead that could be a problem. Hight pressure for sure. But I don't think it would blow up a gun,
you need another f---up to go with it. Hand loading can be perilous.

[safetysheriff]

safetysheriff.

There are some custom gun smith that will order a reamer without freebore and lead. This allows them to ream a custom lead and free bore with a special throating reamer for a specific bullet.

On  a lot of hunting rifles the free bore and leads are over done causing blow by in a place were you don't want it. The throat should have no more than a 1/2 Thou radial clearance.

Yes if the smith forgot to ream the free bore and lead that could be a problem. Hight pressure for sure. But I don't think it would blow up a gun,
you need another f---up to go with it. Hand loading can be perilous.

Fred'

while i'm familiar with chamber and neck reamers, and throaters, i guess i'm thinking that there may have been enough of a screw up with how deep that one step is following the more shallow one ahead of it.....that no other screw-ups were necessary.   this may have been a one-stop-shopping type of screw up!

i suspect that " a little bit of knowledge was a dangerous thing".   i'm actually wondering if somebody took a chamber reamer and cut part of it off and then ran it into the T/C .........     i could be wrong, but stranger things have happened.

take care,

ss'