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10mm Ammuntion => Factory 10mm ammo => Topic started by: 5pins on May 05 2018 05:39:37 AM MDT

Title: Double Tap’s deepest penetrator. (the results)
Post by: 5pins on May 05 2018 05:39:37 AM MDT
(https://i.imgur.com/gqyxGKpl.jpg?1)

Place your bets. Which one do you think went the deepest in Clear Ballistics Gel?

10mm 200gr FMJ-FP @ 1149fps
10mm 200gr hardcast @ 1241fps
10mm 230gr hardcast @ 1096fps
.45 ACP 255gr hardcast @ 915fps
Title: Re: Double Tap’s deepest penetrator.
Post by: tommac919 on May 05 2018 06:59:56 AM MDT
45 acp
Title: Re: Double Tap’s deepest penetrator.
Post by: Pablo on May 05 2018 07:14:07 AM MDT
10mm 200gr hardcast @ 1241fps
Title: Re: Double Tap’s deepest penetrator.
Post by: Graybeard on May 05 2018 07:26:49 AM MDT
Leaning towards the .45, but I'll guess the 10mm FMJ because of the smaller meplat.
Title: Re: Double Tap’s deepest penetrator.
Post by: 5pins on May 05 2018 07:30:37 AM MDT
I just noticed I could add a poll.  ;D

Title: Re: Double Tap’s deepest penetrator.
Post by: The_Shadow on May 05 2018 08:05:20 AM MDT
Based on energy at velocity I voted the 10mm 200gr hardcast @ 1241fps and it would likely go 52" -54" but what do I know? ???
Title: Re: Double Tap’s deepest penetrator.
Post by: Smokee on May 05 2018 08:38:07 AM MDT
10mm 200gr hardcast @1241 gets my vote.
Title: Re: Double Tap’s deepest penetrator.
Post by: Rojo27 on May 05 2018 09:16:12 AM MDT
My SWAG guess would be...

1.  10mm 230gr hardcast
        2 & 3 are a toss up in my mind but my guess would be
2.  45acp 255gr hardcast
3.  10mm 200gr hardcast

4.  10mm 200gr TMJ seems to have the smallest meplat and might edge out #2 and or #3 (in gel)...  However, I would want the wider meplat & toughness of hardcast in a woods or hunting choice. 
Title: Re: Double Tap’s deepest penetrator.
Post by: Blades on May 05 2018 10:10:55 AM MDT
230gr hardcast(highest PF or 252).  ;D
Title: Re: Double Tap’s deepest penetrator.
Post by: 5pins on May 06 2018 04:17:18 PM MDT
The results.

Here is the reader's digest version.

The 10mm 200gr FMJ-FP went the furthest, penetrating all 64 inches of clear gel.
The 10mm 230gr hardcast was next at 59 inches.
The third was the 10mm 200gr hardcast at 49.5 inches.
And finally the .45 ACP 255gr hardcast at 30.5 inches.

Click below for a more in-depth review.

http://www.general-cartridge.com/blog/double-tap-10mm-and-45-acp-woods-loads (http://www.general-cartridge.com/blog/double-tap-10mm-and-45-acp-woods-loads)
Title: Re: Double Tap’s deepest penetrator. (the results)
Post by: Intercooler on May 06 2018 04:32:23 PM MDT
Nice work!
Title: Re: Double Tap’s deepest penetrator. (the results)
Post by: Rojo27 on May 06 2018 04:55:46 PM MDT
Thanks for sharing....

I'd wager the smallest frontal area meplat of the FMJ was the difference. 
I'd still want the WFNGC for hunting or self defense in the woods. 

The 45acp results are the biggest surprise IMHO.  Your hand loaded 45acp FMJ did way, way deeper. 
Title: Re: Double Tap’s deepest penetrator. (the results)
Post by: Graybeard on May 06 2018 04:59:46 PM MDT
This is a great example of clear ballistics jell being an excellent, repeatable, test media, and it doesn't always apply to real world applications. I was pretty sure the smaller meplat would be the deciding factor because the jell is sooooo consistent. As Rojo27 mentioned, I'd take the hardcasts in a hunting situation, too. Much more likely to slam through bones without major deflection, or just pushing arteries out of the way.
Title: Re: Double Tap’s deepest penetrator. (the results)
Post by: Pablo on May 06 2018 05:39:36 PM MDT
Quote from: Rojo27 on May 06 2018 04:55:46 PM MDT
Thanks for sharing....

I'd wager the smallest frontal area meplat of the FMJ was the difference. 
I'd still want the WFNGC for hunting or self defense in the woods. 


Even at less velocity, yes must make a larger difference.
Title: Re: Double Tap’s deepest penetrator. (the results)
Post by: 5pins on May 08 2018 02:34:40 PM MDT
I have been trying to come up with a way to test the ability of these bullets to penetrate hard objects and be able to compare them to each other. What I came up with is some 20 gauge steel drawer dividers set at an angle of 30 degrees.

To see if my idea had any merit I shot two rounds through the sheet metal with two 16 inch block of clear gel behind it. I shot one round of the 10mm 200gr FMJ-FP and one 10mm 200gr hardcast. The 200gr hardcast went through both block of clear gel and the 200gr FMJ-FP only went about 22 inches.

It looks to me like this may be a good substitute for a hard bone and skull test.

(https://i.imgur.com/6HHaIOsl.jpg?1)

(https://i.imgur.com/aihM2O0l.jpg?1)   
Title: Re: Double Tap’s deepest penetrator. (the results)
Post by: Rojo27 on May 08 2018 03:26:51 PM MDT
I like the way your thinking... 

It does appear the fmj deformed a bit and consequently ripped a funky
shaped tab of sheet metal that welded itself to the from of the bullet.
The hardest hardcast appears to cut through cleaner, although still came
away with a sheet metal cap welded on. 

I wouldn't expect bone to be that malleable but the main question in my
view is the likelihood of the fmj deforming when it hits something hard. 
Title: Re: Double Tap’s deepest penetrator. (the results)
Post by: 5pins on May 08 2018 03:33:35 PM MDT
I think what appears to be sheet metal on the bullet is just the galvanization rubbing off.
Title: Re: Double Tap’s deepest penetrator. (the results)
Post by: Kenk on May 08 2018 04:12:06 PM MDT
Great job 5Pins : )
Title: Re: Double Tap’s deepest penetrator. (the results)
Post by: Rojo27 on May 08 2018 09:01:45 PM MDT
Thanks for your efforts and sharing your results!  Every data point helps build knowledge.  Much appreciated!
Title: Re: Double Tap’s deepest penetrator. (the results)
Post by: Pablo on May 08 2018 09:04:52 PM MDT
Quote from: Rojo27 on May 08 2018 09:01:45 PM MDT
Thanks for your efforts and sharing your results!  Every data point helps build knowledge.  Much appreciated!

+1!!!