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Bullet set back is no joke


David.Hylton
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2 hours ago, 4n2t0 said:

Bullet setback IS mostly a joke. Does it happen? Yes. Can it affect function? Yes. Will it cause a "kaboom"? No likely.

 

https://dailycaller.com/2013/03/05/battered-bullets-does-bullet-setback-matter/

 

The pictures no longer load properly but I found some of the originals online.

 

image.jpeg.14a7d673b64ede8a2e7568d7f54dce57.jpeg

 

Untitled.png.4f677173a7ebd7eadecdd1e3f53d2ff4.png

I have read or Been Told, 357 Sig notorious for this. And that it was because of the very short neck case mouth

Edited by usmc1974
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You have to be very careful of setback in a 9mm PCC, because the case is not fully supported.  I had a couple of brass blowouts.  Not fun.

 

In a fully supported chamber, setback will increase pressure, velocity and recoil.  I've never had a case separation in any of my 9mm Open guns.

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4 hours ago, 4n2t0 said:

Bullet setback IS mostly a joke. Does it happen? Yes. . Will it cause a "kaboom"? Not likely.

 

I've never had a Kaboom, but I've read here many times that .40 Major

is prone to Kabooms using fast powders and heavy bullets, if setback

occurs.

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22 hours ago, ExStreetWalker said:

It looks like a piece of brass hit by a lawnmower blade.

this is the most likely cause .

if the round had been fired the bullet would no longer be in the case.

Bullet setback IS mostly a joke. Does it happen? Yes. Can it affect function? Yes. Will it cause a "kaboom"? Not likely.

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1 hour ago, Joedirt199 said:

Unless it was one of those flip and catch tricks where the round fell back into the slide sideways and jammed the bullet in the shell while something pointy hit the primer. You guys know that urban legend?

the bullet would still not be in the case...

 

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