Federal Gold Medal Match 168 gr. ... New and Old? - M14 Forum

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Federal Gold Medal Match 168 gr. ... New and Old?

This is a discussion on Federal Gold Medal Match 168 gr. ... New and Old? within the Ammunition forums, part of the M14 M1A Forum category; I need verification before I proceed with loading. I took a couple boxes of 168 gr. FGMM out to my home range this evening and ...


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Old May 10th, 2017, 08:26 PM   #1
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Federal Gold Medal Match 168 gr. ... New and Old?

I need verification before I proceed with loading.

I took a couple boxes of 168 gr. FGMM out to my home range this evening and tested them in my new Socom CQB to try and establish which powder it liked best.

I shot 10 rounds of the 'Old' / 1993 Production rounds and shot a 1 1/2" group with 1 flyer at 75 yds.

I shot 10 rounds of the 'New' / 2014 Production rounds and shot a 3" group at 75 yds.

So ... it would appear that my rifle like the "Old" rounds better.

In 1993 was the powder IMR 3031? If so ... has the formulation changed at all since they loaded it in 1993?


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Old May 10th, 2017, 08:32 PM   #2
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Not enough of a sample to render an opinion. You might get opposite results by shooting the newer load first. Did you clean the barrel and shoot a fouler between the two groups? In other words did you start with the barrel in the same condition for both tests? How about barrel heat for the two groups? You see where this is going..

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Old May 10th, 2017, 08:46 PM   #3
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Quote:
Originally Posted by KYMountainMan View Post
I need verification before I proceed with loading.

I took a couple boxes of 168 gr. FGMM out to my home range this evening and tested them in my new Socom CQB to try and establish which powder it liked best.

I shot 10 rounds of the 'Old' / 1993 Production rounds and shot a 1 1/2" group with 1 flyer at 75 yds.

I shot 10 rounds of the 'New' / 2014 Production rounds and shot a 3" group at 75 yds.

So ... it would appear that my rifle like the "Old" rounds better.

In 1993 was the powder IMR 3031? If so ... has the formulation changed at all since they loaded it in 1993?


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Was the box red with white lettering? or off white with sideways black lettering? Then again you could try 39.5grs of IMR-3031 in a milspec case and know it was or wasn't the original loading....

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Old May 10th, 2017, 09:18 PM   #4
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I might be mistaken but I thought that Federal GMM 168 grain ammo was a copy of M852 match ammo. IMR 4895 was used in M852 match ammo. That's not to say that Federal GMM was loaded with the same propellant originally or now.

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Old May 10th, 2017, 09:32 PM   #5
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Originally Posted by Phil McGrath View Post
Was the box red with white lettering? or off white with sideways black lettering? Then again you could try 39.5grs of IMR-3031 in a milspec case and know it was or wasn't the original loading....
Here are some pics of the box. I have 1 case and 8 boxes left of this stuff....
Attached Images
File Type: jpg IMG_0573.JPG (216.4 KB, 8 views)
File Type: jpg IMG_0574.JPG (119.1 KB, 8 views)

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Old May 11th, 2017, 04:29 AM   #6
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Pull and weigh the charge in the early stuff. I believe the current offering is 43 grains of 4064. A chronograph will help as well.

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Old May 11th, 2017, 06:18 AM   #7
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Quote:
Originally Posted by rickgman View Post
I might be mistaken but I thought that Federal GMM 168 grain ammo was a copy of M852 match ammo. IMR 4895 was used in M852 match ammo. That's not to say that Federal GMM was loaded with the same propellant originally or now.
Truth be known, what became FGMM was actually a gift from the Marines. They being Federal came before, but threw agreement Federal only supplied the Marines for two years worth of shooting ammo before they could release for public sales. So it would appear that FGMM came later, when that isn't the case what later became FGMM predates M852 by more than a few months.


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Here are some pics of the box. I have 1 case and 8 boxes left of this stuff....
Nope, that's not it.

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Old May 11th, 2017, 06:21 AM   #8
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Nope, that's not it.

That's not what? It's obviously FGMM .... what did you mean by that? How many different 'formulas' of FGMM are there?

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Old May 11th, 2017, 06:49 AM   #9
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Originally Posted by KYMountainMan View Post
That's not what? It's obviously FGMM .... what did you mean by that? How many different 'formulas' of FGMM are there?
I thought you were wanting too know if the FGMM from 1993 you fired was the original Marine loading with IMR-3031? And yes, Federal has changed the powder "formula" or data over the years a few times.

Yes, its FGMM but not the original Marine loading the original loading came in White boxes with black ink across the front they have a rather generic plain look, later production they changed too a all Red box with lettering done in white.

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Old May 11th, 2017, 07:37 AM   #10
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That red box stuff was the best I have seen in my rifles. Wish I still had some.

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Old May 11th, 2017, 09:01 AM   #11
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Originally Posted by Phil McGrath View Post
I thought you were wanting too know if the FGMM from 1993 you fired was the original Marine loading with IMR-3031? And yes, Federal has changed the powder "formula" or data over the years a few times.

Yes, its FGMM but not the original Marine loading the original loading came in White boxes with black ink across the front they have a rather generic plain look, later production they changed too a all Red box with lettering done in white.


Does anyone know the different Formulations they've used throughout the years?

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Old May 11th, 2017, 10:38 AM   #12
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Question

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Originally Posted by KYMountainMan View Post
Does anyone know the different Formulations they've used throughout the years?
Sorry, I do not know what data Federal has used over the years, just the original. More than likely IMR-4895 too IMR-4064 at one time or another and probably everything in between.

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