Will 124 grain gold dots expand? - MP-Pistol Forum

Will 124 grain gold dots expand?

This is a discussion on Will 124 grain gold dots expand? within the MP Compact Pistols forums, part of the Smith & Wesson MP Forum category; Will 124 grain gold dots expand reliably in the M&P 9c 3.5 inch barrel? These are not +P's they are just standard pressure....


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Old December 3rd, 2016, 04:10 PM   #1
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Will 124 grain gold dots expand?

Will 124 grain gold dots expand reliably in the M&P 9c 3.5 inch barrel? These are not +P's they are just standard pressure.
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Old December 3rd, 2016, 08:46 PM   #2
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It depends on the velocity they are loaded to. If you want to know a standard pressure load that will expand reliably, there is plenty of information available.

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Old December 4th, 2016, 06:21 AM   #3
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VS', This probably isn't what you want to hear, but when I started carrying a 3" 1911 I decided to test various loads on my own. Now I don't have ballistic gelatin and didn't want to be bothered keeping it at the proper temp' and such. What I used were 1 gallon milk jugs full of water. I figured that if a bullet expanded in water it ould expand in denser tissue. I also tested the same loads out of a 5 " barrel. Many loads that expanded out of a 5" didn't expand out of the 3". Where I'm going with this is by way of suggesting your own testing out of your gun.

My setup was easy... 3 1 gallon jugs lined up and separated by about an inch, with a backer behind all 3. I used a very thick catalog as a backer. Yes, the catalog will get used because when a bullet doesn't expand it acts like a FMJ and just plows right through the jugs. I couldn't tell for certain the exact penetration I was getting, but I could tell within a general range. But I could definitely see the expansion.

If the gold dots are made in a short barrel version, as the .45s were, that's the one to test in Gold Dots. They are made for lower velocity expansion. I also found some ordinary plain Jane bulk ammo to perform very nicely, so that's worth testing also. My results were in .45ACP so I won't discuss specific loads as they'd have no carry over to 9mm.

I haven't done that full sort of testing of many different loads in 9mm.
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Old December 4th, 2016, 08:11 AM   #4
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I've seen a bunch of the ammo quest videos. I just curious since this pistol has a 3.5 inch barrel and those only have 3's. And the gold dots do expand reliably out of a glock 19 which again is only a half inch difference to my pistol. Think I may ultimately end up getting the 4.25" barrel and put it into it. Also I really don't have a way to test and see if my ammo will expand I have to go to a indoor range to shoot. I know HST's are great performers out of the 3 inch guns and I may end up just switching to those.
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Old December 4th, 2016, 09:43 AM   #5
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Old December 5th, 2016, 07:25 AM   #6
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Quote:
Originally Posted by vsmith View Post
I've seen a bunch of the ammo quest videos. I just curious since this pistol has a 3.5 inch barrel and those only have 3's. And the gold dots do expand reliably out of a glock 19 which again is only a half inch difference to my pistol. Think I may ultimately end up getting the 4.25" barrel and put it into it. Also I really don't have a way to test and see if my ammo will expand I have to go to a indoor range to shoot. I know HST's are great performers out of the 3 inch guns and I may end up just switching to those.
A 4 1/4" barrel won't lock up properly at the muzzle in a 3 1/2" slide.
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Old January 17th, 2017, 11:35 AM   #7
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I have done a ton of Ballistic gel tests. Unfortunately all with a Glock 43. I will say this the Federal HST 124 standard pressure is what I carry in ALL my 9mm's. I have quite a few carry 9mm's. Gold dots 124+P performed very poorly. I will copy and paste some of my findings here. Read to the bottom for 9mm

Using a Shield .45
Here is results from 4 layers of denim test using a 6x6x20" clear ballisticgel block. Temp 28degrees, humidity 47% and pressure 30.3inHg. Previous test done with bare gel is further below

With both HST and Ranger 230+p and 230 standard pressure was very inconsistent. Around half the rounds would clog with denim and pass through 20" with no expansion. When they did expand penetration was only 11 1/2" This was the exact same results as Federal HST 230+P and standard pressure. 3 out of 4 rounds would fail to expand and passed through
Hornady XTP 200 gr +P also failed to expand 3 out of 4 times and then one time it went to 19" and .51 expansion.
Magtech 230gr JHP failed to fire! The striker would not even dent the primer!
Underwood 120gr Xtreme defense did very well and penetrated to 17" 4 out of 4 times. Of course no expansion with the solid copper bullet
Corbon 165+P DPX expanded beautifully and penetrated 9-10" each time.
The clear winner today was Corbon 185+P DPX.
4 out of 4 expanded beautifully and penetrated to 14 1/2-15" each time. It also performed exactly the same in bare gel.
The bare tests are below

I did a impromptu clearballistics FBI BARE gel test about a week ago.
I used Shield 45
6"x6"x16" clearballistics FBIgel with wood backstop
It was 17 degrees F, 61% humidity, Pressure 30.3%
I used my .45 Shield
Federal HST 230gr= penetrated 11 1/2" expanded .82
Federal HST 230 gr +P= penetrated 11 3/4" expanded .80
Critical duty 220 +P = passed through block. recovered in wood .51"
Underwood Extreme defense 120gr=passed through block recovered in wood
Winchester Ranger 230gr (RA45T)=penetrated 11 1/2" expanded .75-.85"
Widest petal was .85
Winchester Ranger 230gr+P (RA45TP)=penetrated 14 3/4" expanded .75-.85
I then shot 4 more rounds of Ranger 230gr+P and they went from 14 1/2" to 14 7/8"
So with my little test I will be carrying the Ranger 230+P.
Just thought you might be interested in the results.
The Federal HST expand beautifully but don't even penetrate to 12" with the shorter Shield barrel.
Here is update.
I did Speer Gold dot 230gr Standard pressure=13"penetration with .625 expansion
Corbon DPX 185gr+P=14 1/2" penetration with .75 expansion
I still like the Ranger 230+P so far with 14 1/2-14 3/4" penetration and .85 expansion at widest point.
One Corbon turned completely around 180degrees
Both expanded nicely
ON SIDE NOTE:
I also tested 9mm out of a Glock 43 with 4 layers of Denim
HST 124gr standard pressure was the clear and decisive winner by a land slide
5 out of 5 penetrated to 18 1/2" and all expanded beautifully
Hst 147 and 147+P also clogged with denim and some expanded and some passed through 20" block
Speer gold dots 124+P did not perform well. Only 1 expanded and penetrated to 14". the 4 others did not expand and passed through 20"
I did two .357 sig out of a G33
Corbon 125gr DPX pentrated 14 1/2" and expanded nicely
Underwood 125gr gold dot ROCKED the block. It hit so hard the block lifted up.
Penetrated 16" and expanded beautifully to .60"
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