Hyperstatic shock ammunition
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Old 07-20-2012, 06:21 PM   #1
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Default Hyperstatic shock ammunition

3700-beyond fps makes for a bullet that can create hyper static shock. Is a .257 weatherby a good caliber for deer, hogs, and black buck antelope.

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Old 07-20-2012, 07:33 PM   #2
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Should work.

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Old 07-20-2012, 08:35 PM   #3
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Quote:
Originally Posted by tderrick View Post
3700-beyond fps makes for a bullet that can create hyper static shock.
That is incorrect.

Wikipedia: Hydrostatic shock; Physics of ballistic pressure waves

Quote:
A number of papers describe the physics of ballistic pressure waves created when a high-speed projectile enters a viscous medium.[33][34][35] These results show that ballistic impacts produce pressure waves that propagate at close to the speed of sound.
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Old 07-20-2012, 08:39 PM   #4
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Great link. I think this would be the main part of interest and I'm happy to say my 10mm is well in the range even at 50 yards.
Even though Wang et al. document remote neural damage for low levels of energy transfer, roughly 100 ft·lbf (140 J), these levels of neural damage are probably too small to contribute to rapid incapacitation. Courtney and Courtney believe that remote neural effects only begin to make significant contributions to rapid incapacitation for ballistic pressure wave levels above 500 psi (3,400 kPa) (corresponds to transferring roughly 300 ft·lbf (410 J) in 12 inches (30 cm) of penetration) and become easily observable above 1,000 psi (6,900 kPa) (corresponds to transferring roughly 600 ft·lbf (810 J) in 12 inches (0.30 m) of penetration). [41] Incapacitating effects in this range of energy transfer are consistent with observations of remote spinal injuries, [26] observations of suppressed EEGs and apnea in pigs [37][45] and with observations of incapacitating effects of ballistic pressure waves without a wound channel.

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Old 07-20-2012, 08:48 PM   #5
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Quote:
Originally Posted by mountainman13 View Post
I think this would be the main part of interest and I'm happy to say my 10mm is well in the range even at 50 yards.
Yeah, I probably didn't quote the best line, but their is a lot of information on hydrostatic shock pertaining to handguns in that link.
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Old 07-20-2012, 08:49 PM   #6
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Yeah great link. Glad you found it.

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Old 07-21-2012, 06:21 PM   #7
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Not scientific but may be of interest...

Yesterday before I read this post I shot a gallon jug with my 45acp; I wasn't impressed. The two different cartridges I shot, 230gr FMJ at 860fps and 185gr HP-XTP at 930fps, produced similar results.


Today I tried it with my 357mag and found the 125gr HP-XTP traveling at 1400fps did extremely well, and the 180gr HP-XTP traveling at 1050fps produced acceptable results.

Here is the 45 with a hollow point.


Here is the 180gr hollow point 357mag.


Here is the 125gr 357mag.

Another pic as the splash grew.

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Old 07-22-2012, 07:21 PM   #8
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Nice pics, kid.

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Old 07-22-2012, 10:42 PM   #9
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Quote:
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Nice pics, kid.
Thank you!
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Old 07-22-2012, 11:01 PM   #10
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Quote:
Originally Posted by The_Kid
Not scientific but may be of interest...

Yesterday before I read this post I shot a gallon jug with my 45acp; I wasn't impressed. The two different cartridges I shot, 230gr FMJ at 860fps and 185gr HP-XTP at 930fps, produced similar results.

Today I tried it with my 357mag and found the 125gr HP-XTP traveling at 1400fps did extremely well, and the 180gr HP-XTP traveling at 1050fps produced acceptable results.

Here is the 45 with a hollow point.

Here is the 180gr hollow point 357mag.

Here is the 125gr 357mag.

Another pic as the splash grew.
I've shot a gallon jug with my 45 acp and it produced a bigger splash than that. Must just be different shot placement on the jug.
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