.357 mag gel test: Underwood 158 gr Gold Dot (revolver & carbine)

[chopinbloc]

Video link for phones






Underwood 158 gr Gold Dot fired from 4" S&W Model 13 and 16" Rossi M92 carbine into calibrated 10% gelatin.

BB: 585.3 fps, 3.3"


Revolver results:

Impact velocity: 1,213 fps
Penetration: 20.9"
Retained weight: 158.1 gr
Max expansion: 0.612"
Min expansion: 0.494"


Carbine results:

Impact velocity: 1,967 fps
Penetration: 12.4"
Retained weight: 95.2 gr
Max expansion: 0.683"
Min expansion: 0.531"


I forgot to place denim but I have never seen a Gold Dot fail to expand except for very low velocity .38 spl. Denim might have increased penetration figures slightly.

 

[strambo]

Nice results with the carbine. It is like a .30 Carbine with more expansion that fragments.

 

[joneb]

I'd like to see how the Hornady 158gr XTP's (HP and FP) would do from the carbine.

 

[chopinbloc]

Funny you should ask.

Link for phones

 

[joneb]

Thanks,
I think the XTP/FP would be a better choice for the carbine.

 

[Richard Head]

Wow the carbine velocity is absolutely smoking. 1350 ft\lbs of energy puts it right there with a 223 from a carbine. The revolver velocity is a little disappointing, with a difference of over 750 fps I don't think I've ever seen such a large discrepancy in velocity for a pistol cartridge fired in a revolver and a carbine.

 

[Rule3]

One shot does not a test make.

Is this for SD or hunting? The Gold Dot (resolver) would fail the FBI test due to over penetration. It would be good to see it through denim.

Fun to watch though!

 

[Ex]

Thanks for posting those chopinbloc. I have recently been curious about what
added velocity would be gained on this round through a carbine.

Would like to see the same test in 10mm

 

[chopinbloc]

Rule3, that's absolutely right. A proper test includes at least five shots per event and should, at a minimum, include a bare gel and a heavy clothing event. My testing is for entertainment only.

That said, I've never seen a Good Dot fail the for layers of denim at that velocity. It will usually add a little extra penetration, though. This amount of penetration is excessive for personal protection in the city, but excellent for woods defense.