Author Topic: Coon information  (Read 1375 times)

Jay

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Coon information
« on: July 10, 2016, 08:47:50 AM »
 First off im sure you biased airgunnners will take everything you read here for a grain of salt. Youll read it and it wont stay, but i thought I would put out the information just so you guys could have it

  here is the thread where I killed the coon >>>> http://airgunguild.com/airgun-hunting/another-chicken-killer-is-down/

  I was using a benjamin marauder .25 cal and 33.95 grain JSB's shooting around 50 fpe. The shot to the coon was about 48-50 yards. At that distance according to my calculations I had about 37 fpe.

 Here is some measurements on how far the pellet traveled and all. Now lets put this into thought its not easy knocking down a coon. I shot a squirrel the other day @ 100 yards and the pellet had 25fpe on it. The pellet traveled almost 5.5" and still got a passthrough.

The pellet only travel a distance of 2.6" Coon skull is very thick too and they are also very fatty. To compare the thickness of the skin I would have to say imagine laying 3-4 squirrel skins on top of each other then you have about the same texture in my opinion and thickness of a coon. Once you make it thought the skin then you have about 1/8" of fat/muscle tissue you must make it through. If you make it thought that then you have to make it through .29" of dense thick skull before you get to the brain.









 The last picture is the entry and imo the softest part of the skull.

 Here is picture of two shot pellets and the last one is what I recovered from the coon. it stopped at the beginning of the spine.







 


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Alan

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Re: Coon information
« Reply #1 on: July 10, 2016, 09:37:56 AM »
That's about what I would expect. The Heavy is a bit more distorted than I would have thought, but as you say they are hard headed.

I use Kings in my .25 (25.39 grains at 880 FPS, ≈44 FPE). About the same thing happened when I shot a coyote dead between the eyes. The pellet wasn't nearly as flattened as yours was. Now, it makes me wonder why?
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Alan

I have an Omega compressor. If you're a fellow Guild member, and you pass through Roswell, NM, I'll fill your portable tank as a courtesy.

Jay

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Re: Coon information
« Reply #2 on: July 10, 2016, 10:08:21 AM »
 Whaat does it make you wonder? Coons have thicker skulls? the mkII's are a softer lead?
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Alan

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Re: Coon information
« Reply #3 on: July 10, 2016, 11:55:35 AM »
If what others have said is true, the .25 JBS Kings, Heavies, and the PolyMags are all mode of the same lead mixture. I expect PolyMags to spread out due to their design. But other than the fact the Heavies are ≈8 grains heavier than the Kings, there shouldn't be all that much difference in how they look after hitting heavy bone.
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Alan

I have an Omega compressor. If you're a fellow Guild member, and you pass through Roswell, NM, I'll fill your portable tank as a courtesy.

Jay

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Re: Coon information
« Reply #4 on: July 10, 2016, 11:59:01 AM »
If what others have said is true, the .25 JBS Kings, Heavies, and the PolyMags are all mode of the same lead mixture. I expect PolyMags to spread out due to their design. But other than the fact the Heavies are ≈8 grains heavier than the Kings, there shouldn't be all that much difference in how they look after hitting heavy bone.

 From my understanding the polymags have a real soft lead to help them spread out even easier.
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ShakySarge

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Re: Coon information
« Reply #5 on: July 10, 2016, 02:10:43 PM »
Negative. Exact same lead.

This should about sum it up! If you want a re-test, I can remove the poly-tip from the P-mag and I am willing to bet that the P-mag will melt even faster. In the end, same lead IMO.

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rsterne

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Re: Coon information
« Reply #6 on: July 10, 2016, 02:18:13 PM »
AFAIK, all JSB pellets use very nearly pure, soft lead.... I have never seen any pellets that are softer....

Pellet penetration is a combination of velocity, weight (Sectional Density), and any expansion that occurs.... The expansion is generally a combination of retained momentum, and the relative hardness of the pellet and object impacted.... At 50 yards, the Heavy would have significantly more retained momentum than a King, so should exhibit more expansion, when impacting identical structures....

Bob
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Alan

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Re: Coon information
« Reply #7 on: July 10, 2016, 02:38:47 PM »
What Bob said....

The professor I gave samples to, told me they are essentially the same lead. The tin content was ≈2.5% in both the JBS Kings, and the PolyMags.
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Alan

I have an Omega compressor. If you're a fellow Guild member, and you pass through Roswell, NM, I'll fill your portable tank as a courtesy.

Jay

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Re: Coon information
« Reply #8 on: July 10, 2016, 04:33:56 PM »
 Ah great Information Bob matt and Alan. Clears it up for me for sure.


 Jay
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