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  #51  
Old 09-13-2020, 02:52 PM
Dave Lively Dave Lively is online now
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Quote:
Originally Posted by ContinentalOp View Post
So, I got curious and decided to do the math. Well, simplifed.

Volume of a cylinder is pi*(r^2)*L.

For a .35 caliber bullet traveling 15", the volume is 1.44in^3.

For a .45 caliber bullet traveling 15", the volume is 2.39in^3.

Someone please correct me if I'm missing something.
Your numbers agree with mine. Maybe not exactly but pretty close. 2.39/1.44 = 1.66 or 66% more volume. A couple of posts up I calculated 63% more. The difference is just rounding errors because I used .452 and .354 for the diameters.

More, but not nearly 3 times the wound volume as the post I was responding to claimed.
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  #52  
Old 09-13-2020, 03:05 PM
seldon14 seldon14 is offline
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Originally Posted by JJEH View Post
Interesting video for sure, but there was one argument that I found a little contradictive though. When they talked about rifle ballistics they said the higher velocity was good and basically speed kills but they disregarded velocity it when it came to handgun ballistics.
The basics, as I understand it, are fast rifle rounds ARE moving fast enough for velocity to matter, but even the fastest handgun rounds are not.
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  #53  
Old 09-17-2020, 08:50 PM
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Originally Posted by Rule3 View Post
Some folks really need to watch this video, watch it again and actually listen to what the guys at Federal say.


Why Ballistics Gel Works and Caliber Arguments are Dumb - YouTube


Why Ballistics Gel Works and Caliber Arguments are Dumb - YouTube

Clint Smith said he has never been attacked by Jello.

Personally I don't put a lot of faith in Ballistic Gel.

I also don't put a lot of faith in the FBI Ballistic Tests. There seems to be no consistency. Trying to make one size fit all in weapon and ammo selection.

I just not a fan of JHP's.

I like hardball in my 45's and full hard cast wadcutters in 44 special and 38 special.
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  #54  
Old 09-17-2020, 09:25 PM
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Originally Posted by zzclancy View Post
selection.

I just not a fan of JHP's.

I like hardball in my 45's and full hard cast wadcutters in 44 special and 38 special.

I too, like wadcutters and hardball in .45ACP. It starts out as a.45 inch whole and will only get bigger...........
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  #55  
Old 09-18-2020, 09:19 AM
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I too, like wadcutters and hardball in .45ACP. It starts out as a.45 inch whole and will only get bigger...........
There is a good bit of truth there. The 9mm may expand to .45, but the 45 ACP will not shrink to 9mm.

I am a fan of expanding bullets, expansion with proper penetration makes them more effective. Even more important, though, is reliability and shot placement. A 9mm that always expands to 3/4 of an inch, but does not function reliably in your pistol is useless. Same goes for a wonder bullet that misses the intended target.
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  #56  
Old 09-18-2020, 11:15 AM
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Originally Posted by ContinentalOp View Post
I can't remember the exact terminology, but terrorists weren't considered "legitimate combatants" based on the Hague Conventions (the US didn't sign it, but for the most part we followed the guidelines on ammo) since they didn't represent a recognized country, if I'm not mistaken.
Close, but not quite accurate. The argument for those units with a counter terror role is/was that terrorists are criminals, not lawful combatants, so not eligible for consideration under the Hague Convention. This information was provided to me by the lawyer assigned to "one of those units that do not exist" mentioned so romantically above.

I'm way out of date with this stuff, so if a decision has been made to general issue HP ammunition along with the new SIG that's news to me, and must be based upon some other, new consideration.
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  #57  
Old 09-18-2020, 11:32 AM
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Holes bleed. bigger holes bleed more. Lots of bigger holes bleed even more.

The only time that I use FMJ is when I am required by circumstances to carry something smaller than usual. For example, .32 ACP out of a KT P32. Those HPs won't expand, and possibly won't penetrate enough. So, while the FMJ won't expand in that caliber, it will penetrate better.
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  #58  
Old 09-18-2020, 04:38 PM
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Groo here
The Fmj was NOT designed to wound!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
It was designed to FEED and FUNCTION!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Many forget this in their search for the "perfect " carry load...
First the round MUST feed and fire....
Then it MUST go where you send it......
Then it Must drive deeply enough to get to the good stuff!![ different summer and winter due to clothing]
After that ,, if it deform , does or does not go through is secondary.
It MUST do the first three or it does nothing.....
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  #59  
Old 09-21-2020, 12:08 AM
geekeye geekeye is offline
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i'm pretty sure the correct answer to this question of FMJ vs JHP is buckshot
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  #60  
Old 09-23-2020, 05:54 PM
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Wow there some good interesting points in this thread. FMJ ammo is used on paper targets and other targets. HP are used for SD. First use some of your SD ammo on your carry weapon, about 200 rds. If you have not hang up you are good to go.

Simple
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