Which is more robust? RH, SRH or SBH.

This is all old news but apparently foreign to some. I would suggest some reading, perhaps find the back-issues of Handloader magazine with 50kpsi loads for the Redhawk. Both the .44 and .45 versions.

Happy Trails. :rolleyes:
 
Show me .035" thick steel that will hold 18,000 psi.
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When you look at what .035 actually does to cylinder wall thickness, you'll figure out how foolish your argument is.
going from a .075 cylinder wall thickness on a Blackhawk to a .115 cylinder wall thickness on a Redhawk is worth 18,000 psi;)
 
When you look at what .035 actually does to cylinder wall thickness, you'll figure out how foolish your argument is.
Click to expand...
going from a .075 cylinder wall thickness on a Blackhawk to a .115 cylinder wall thickness on a Redhawk is worth 18,000 psi
Click to expand...


Mav, I took a look at the cylinders from a different perspective. The concern is the thinnest part, right?

Lookie what I found:

1660926_10202221348428873_1515941050_n.jpg


1723172_10202221492432473_1962919720_n.jpg


Kinda kills the cylinder diameter debate. I didn't disassemble the Redhawk cylinder but the caliper jaws extend well past the ejector. It doesn't really matter because that ejector is thinner than the cylinder walls.
Both cylinders have thicker outer walls. In fact, I've been slacking and haven't cleaned the Redhawk since it's last outing but I can't say that the dirty bits are taking up an appreciable amount of space.

I flipped the Redhawk image for similarity but the angle doesn't change the reading. It's the same thickness as the early 90s "big" Vaquero.

In case you were wondering the Vaquero's cylinder notches are .050" deep while the Redhawk sports a set .078" deep.
If you're concerned with the thickness at the cylinder notch this just ate up .028" of that .035" difference.
Now you're down to .007" of an inch. That's roughly two sheets of 20 lb copy paper.


Interesting, eh?
 
That would be very interesting were it not for the fact that the RH/SRH has been proven safe for loads in the 50kpsi range and the BH/SBH is not.
 
Flattie, isn't there a playground full of children that need their candy stolen?

I'm not saying which is stronger. This is strictly a comparison of cylinders.

We are all still waiting for you to have the metallurgical testing done to determine the amount of carbon in the materials used. I'll need that and the chromium content down to the angstrom so I can enter the data into my finite element analysis software.
Once that is done I should be able to get you pressure numbers within a hundred or so psi.
 
Interesting, eh?
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Yes concidering your cylinder measures .035 smaller than any 45 Colt Redhawk measurements I can find on the web. They all say the Redhawk 45 Colt is .095 between the cylinders.
Your images do a good job of showing the bolt notch in relation to the chamber and show the total irrelevance of your last statement as the bolt notch for the redhawk is offset and isn't in the thin part of the outer wall.
 
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Flattie, what you don't understand is that I'm yanking your chain.

Get a life already. I never said one design was superior. All I did was toss some info out there.

I honestly don't care.
 
feets said:
Show me .035" thick steel that will hold 18,000 psi.
Click to expand...

Ok. See a piece of any kind of steel around? The sorriest, cheapest mild steel you can find will have a yield strength of about 36,000 PSI.

Using the basic equation for stress in a hollow sphere (s=pr/2t), that means that if you form your .035" thick mild steel into a hollow sphere, it could be about 1/4" in diameter and easily hold 18,000 PSI.

Pretty basic stuff, the equations are here if you're interested:

http://www.efunda.com/formulae/solid_mechanics/mat_mechanics/pressure_vessel.cfm
 
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I generally use Engineers Edge for reference. My Machinerys Handbook has been priceless.
A 1/4" sphere with an .035" wall holding 18,000 psi has 64,000+ psi hoop stress.
Stepping up to 1/2" would raise the stress to 128,000+ psi at the same 18,000 psi internal pressure.


Just for giggles I ran the numbers for hoop stress on a 45 Colt cylinder with the .060" wall. A 40,000 psi shot runs the stress up to 719,728 psi.
Stuffing a 50,000 load in there pushes things up to 899,660.

Just for kicks, a proof load 454 packing 92,000 psi moves the needle to 1,655,374 psi.

That's getting ugly.

Yeah, I like to play with numbers.
 
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