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KABOOM
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dhc4ever
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PostPosted: Fri May 09, 2014 12:09 am    Post subject: Re: KABOOM Reply with quote

slim'

youtu.be/z8rYotiiFP8?t

Smile

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Elvis
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PostPosted: Fri May 09, 2014 12:11 am    Post subject: Re: KABOOM Reply with quote

Laughing Laughing Haha Haha Haha Haha Haha

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Vince
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PostPosted: Fri May 09, 2014 12:52 am    Post subject: Re: KABOOM Reply with quote

Classic...love it. Laughing Laughing

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slimjim
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PostPosted: Fri May 09, 2014 3:57 am    Post subject: Re: KABOOM Reply with quote

LOL, dch4, that was great! Though I have to tell you that I've thought more how to freeze it out which shouldn't result in a KABOOM.

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Aloysius
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PostPosted: Fri May 09, 2014 4:29 am    Post subject: Re: KABOOM Reply with quote

liquid nitrogen?

How would a primer react on such an extreme cold?
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dhc4ever
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PostPosted: Fri May 09, 2014 4:41 am    Post subject: Re: KABOOM Reply with quote

Aloysius wrote:
liquid nitrogen?

How would a primer react on such an extreme cold?

"Generally" extreme cold will drastically slow down or stop chemical reactions, so it shouldnt go off.

Smacking the rod after freezing in liquid nitrogen might just get it out either by shattering it or cold shrinking it enough to release it from the chamber wall.

Harden up slim, we now ALL want a kaboom, videoed of course Very Happy

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Dawgdad
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PostPosted: Fri May 09, 2014 8:00 am    Post subject: Re: KABOOM Reply with quote

Brass ball off of a steel monkey.... Check the history behind that saying...

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Dawgdad
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PostPosted: Fri May 09, 2014 8:18 am    Post subject: Re: KABOOM Reply with quote

Actually - doing the math - If you use liquid nitrogen and drop the temp by 400 F - the brass contraction rate is 0.004 and the 4140 Steel would be 0.003" - If the chamber is 316 SS the contraction rate is 0.0035"

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Dawgdad
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PostPosted: Fri May 09, 2014 8:19 am    Post subject: Re: KABOOM Reply with quote

At that temperature the brass would likely shatter - but your barrel would be cryotreated Smile

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slimjim
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PostPosted: Fri May 09, 2014 8:24 am    Post subject: Re: KABOOM Reply with quote

Dawgdad, using the liquid nitrogen sounds more dangerous that trying to set the primer off. I was thinking of doing the idea of water changing to ice and pushing the round out. Can you do the calculations for that? Its a 16-in barrel (minus 2.260 for the round)? How much will the water column expand?

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slimjim
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PostPosted: Fri May 09, 2014 8:30 am    Post subject: Re: KABOOM Reply with quote

Dawgdad wrote:
Brass ball off of a steel monkey.... Check the history behind that saying...

having a Navy background I am familiar with the origins. However, you need to get it right. its "freeze the balls off a brass monkey". When ships were made out of wood and men of steel, cannon balls were often stored on racks made of brass, called "monkeys". When it got too cold, the brass contracted more than the cannon balls which fell off and went rolling down the sloped deck. Sloped to make it easy to push the cannons back into firing position after they were loaded.

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Bushmaster
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PostPosted: Fri May 09, 2014 8:44 am    Post subject: Re: KABOOM Reply with quote

Whew...Sure glad we got that straightened out. ByTheWay...Cannon balls were cast iron.

Beings I DID retire off a wooden ship. Ocean Mine Sweep that is. The USS Pledge (MSO-492). I know all about Iron Men and Wooden Ships.

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slimjim
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PostPosted: Fri May 09, 2014 8:58 am    Post subject: Re: KABOOM Reply with quote

Bushmaster wrote:
Beings I DID retire off a wooden ship. Ocean Mine Sweep that is. The USS Pledge (MSO-492). I know all about Iron Men and Wooden Ships.

Bushy, I figured you were that type of "tough" guy. Easy to deduce, your avatar shows you are the elder statesman of the group. Both by the maturity of the gentleman in the picture and the fact color images weren't even around back when it was taken.

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Bushmaster
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PostPosted: Fri May 09, 2014 9:27 am    Post subject: Re: KABOOM Reply with quote

Grrrrrr...That photo took third place at a photo contest I'll have you know. And we DID have color (by Kodak) in my day.

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slimjim
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PostPosted: Fri May 09, 2014 9:40 am    Post subject: Re: KABOOM Reply with quote

Bushmaster wrote:
we DID have color (by Kodak) in my day.

The kind of picture that you had to shake?



Stovey, where are you mate? We miss you!

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