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-   -   .50 cal Gi for glock (http://www.firearmstalk.com/forums/f15/50-cal-gi-glock-42009/)

FaTmAn 05-02-2011 05:15 AM

.50 cal Gi for glock
 
I just saw an add in one of my gun magazines for a drop-in conversion unit for Glock 20/21 pistols making it a .50 cal GI. I like the concept but didn’t know much about the round and the ballistics so did some research and thought I would share what I have found with you all.



50GI

Guncrafter Industries : Specials

Guncrafter Industries : Specials

October 1, 2008, 08:20 PM
Special thanks to JK for their sponsorship of this test.

==========
Brass Fetcher Ballistic Testing

Test # JK 14
Bare gelatin test (Nominal 10% concentration)

Cartridge : .50GI Guncrafter Industries 300gr TMJ

Block Calibration :

Block 1 : 3.2 0.05 inch penetration @ 588 0.5 ft/sec. 37.0degF
Block 2 : 3.1 0.05 inch penetration @ 570 0.5 ft/sec. 37.7degF
Block 3 : 3.1 0.05 inch penetration @ 597 0.5 ft/sec. 37.4degF

Block Core temperature :

Block 1 : 37.9degF
Block 2 : 38.1degF
Block 3 : 38.0degF

Bullet Performance:

Impact Velocity : 739 0.5 feet/second
Deepest Penetration Depth : 39.8 0.05 Inch
Maximum Crack Diameter : 1.1 0.05 Inch
Max Crack Diameter Location : 6.4 0.05 Inch
Cavitation Depth : 0.0-15.7 0.05 Inch

Notes:
Weapon – Guncrafter Industries Model 1, with 5.0” barrel length
Distance – 10.0 feet, muzzle to gelatin impact face
Test site conditions - 66 deg F, 50% relative humidity
Time out of refrigeration prior to shot impact - 8 minutes
Bullet recovered weight – 302.6 0.05gr
Bullet recovered average diameter - 0.498 0.0005"
Bullet recovered length - 0.640 0.0005"

Bullet appeared to yaw significantly at 24.9” to 25.6” penetration depth.

http://www.brassfetcher.com/JK 14 Entire track side view.JPG
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http://www.brassfetcher.com/JK 14 Side View.JPG
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http://www.brassfetcher.com/JK 14 Top View.JPG
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http://www.brassfetcher.com/JK 14 Side View Block 2.JPG
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http://www.brassfetcher.com/JK 14 Top View Block 2.JPG
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http://www.brassfetcher.com/JK 14 Side View Block 3.JPG
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http://www.brassfetcher.com/JK 14 Top View Block 3.JPG
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http://www.brassfetcher.com/JK 14 Bullet View.JPG

FaTmAn 05-02-2011 05:27 AM




WDB 05-02-2011 06:18 AM

Exactly what every Glock owner should go for

sweeper22 05-02-2011 08:33 AM

Nothing wrong with adding the conversion "just for the heck of it". But it's not a round with too many practical applications. Because it's extremely slow, I doubt it's able to do anything more than a 45acp already does. The velocity is the biggest shortcoming between the .50GI and rounds such as .50AE, .460Rowland, .44mag, and even 10mm...so it doesn't even really serve as an ideal hunting sidearm.

Seems like it's more of an "I've got a fitty" novelty than anything else. But heck, I'd be happy to run a few mags through one if the opportunity ever arose.

FaTmAn 05-02-2011 11:32 AM

The price of the conversion kind of turned me off at 595.00 it cost more then the origanal firearm. and with no major differnce between the rounds. Its prolly not worth the bang for your or mine's buck

mesinge2 05-02-2011 02:33 PM

Quote:

Originally Posted by FaTmAn (Post 496983)
The price of the conversion kind of turned me off at 595.00 it cost more then the origanal firearm. and with no major differnce between the rounds. Its prolly not worth the bang for your or mine's buck

I could live with the cost of the conversion (I have 1911s in excess of that plus the cost of the gun).
However, I would have a problem with the cost and scarcity of the ammo.


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