Modern Sporting Rifle Evolution
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dwinmeade

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Reply with quote  #1 
The comparison of 22GPC vs 224 Valkyrie was valid...like comparing apples to apples.

The following quote brings to mind another possible comparison...the 6mm Mongoose vs 24GPC...both are 4G, 243 caliber and run on an AR platform. Both need modified cases, not factory ones.

BIGGDAWG's quote praises the Mongoose, but isn't the 24GPC just as good or better?
(I think some of MDWS's stand alone wildcats have duplicate brothers in the GPC caliber line...so me being new/young with MDWS, how/which duplicate does one choose?)

Quote:
Originally Posted by BIGGDAWG

Our stock barrels are limited to the blanks we use. If you want 5R in any of the others they can be custom ordered, X caliber blanks is what I use for 5R and they have them in most bore sizes.  I am actually trying one of their 3R 7mm blanks on the 7mm Valkyrie just got it built last night.

So don't forget you can get pretty much what ever you want if you go the custom barrel route. Just email and ask questions.  I will say you can't go wrong with the 6mm Mongoose, it isn't 5R, it is 4 groove and I have not seen a Mongoose that doesn't shoot the way you want it ... period.  5r is nice but it is more about the maker and how it is made than the grooves.

Link to custom barrel page but if not listed just have to email we can hook ya up with pretty much what ever you want for blanks and our calibers  https://www.maddogweapons.com/store/p738/Custom_Barrel_%28AR15%2C_%22AR10%22%2C_Savage%2C_Mossberg_MVP%2C_Tikka_or_Remington_Remage_Bolt_Action%29.html
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BIGGDAWG

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Reply with quote  #2 
You choose the one based on how fast you want the bullets to go, what bullets you want to shoot, what brass do you want to play with.

The Mongoose is best with up to 80 grain bullets, but that is my opinion. Up to 95gr or so will fit in the mag at 2.3" OAL.  For me, optimal is 80gr and under, but i have every caliber we make - so I just grab the one I want to shoot the bullets I want. 

The 24 GPC is newer with less data, but was designed to run the 80-105gr bullets at mag length of 2.295" or under. Being on the larger GPC brass, it has more case capacity and can push the bullets faster.  Accuracy is good, but again not as well developed as the Mongoose.  The 'goose is a little slower and made for the lighter bullets but is very accurate with most everything.  It requires fire forming to have max case capacity. The  24 GPC can use our GPC brass - just run through die and trim, or it can use 6.8 SPC brass size trim and fire form.

To me it isn't a matter of which is better each has its roll. If you want to shoot light and heavy - then it is a no brainer, the GPC is the way to go; it will shoot them all where the heavies are single load in the 'goose.  If you mainly want to shoot 90gr and under, then the 'goose may be your choice if you like the idea of using .223 brass.

We have wildcats in 3 size cases: 5.56x45mm/.223 Rem based, GPC/6.8 SPC based, and the Fat Cats on 6mm Norma Dasher/6mm GT/ 6.5x47 Lapua based (all are factory shortened 7.62x51mm/.308 Win based)

mdws final line up.jpg


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MDWS

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Reply with quote  #3 
The whole point of developing cartridges based on different parent cases is to provide options for as many people and applications as possible.

For example, if you have an AR15 or some standard AR15 parts laying around and you want an awesome 6mm variant that uses the 5.56 case you go Mongoose.

If you have a 6.8SPC or something in that family and want to go 6mm you have the 24 GPC.

If you want to build from scratch, you choose the performance/cost/standardization windows you prefer and go.

The 24 GPC does have more case capacity and will run "faster", but you can also find a Mongoose load that is maybe only 75-100 fps slower than the 24 GPC but suits your needs more.

End of the day, "options" is what it is all about.

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Acronin243

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Reply with quote  #4 
I think that's the best thing about what MDWS is doing with these. These are not redundant cartridges that do the same thing. They are very purpose driven, despite the "general purpose cartridge" moniker. 

I have a 6mm Mongoose and a buddy of mine has the 24GPC. 

The 24 GPC is capable of more velocity and because of that has better range and can shoot heavier bullets more effectively, BUT that doesn't mean the Mongoose is left in the dust either. 

To me it's like this:

If you want a longer range 6mm that can be shot to 1000yds and take medium game (deer, antelope, etc.) but also is more of a laser beam with smaller bullets for predators, the 24 GPC is your thing, especially if you have a 6.8SPC or SPC parts lying around. 

The 6mm Mongoose to me is a .223AI but have the bullet selection of 6mm. I'm still shooting 80gr GMX's out of my 18" barrel at 2800fps! That's scooting pretty good. Good enought to drop a 300+lb boar with. I'm loading it down to 55gr SBK's and they are scooting along at 3461fps with 28.5gr of H322. So it's no slouch. Plus the abundance of .223 brass is huge. 

They both have to fire form as was mentioned before, so in that category it's a wash. 

Honestly both cartridges serve their own purpose but there is some overlap. I think it comes down to what you are familiar with or which end of the spectrum itch you're wanting to scratch. 
 
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GSI

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Reply with quote  #5 
So I've been intrigued with the AR-15 variants for some time. What I'm interested in a hunting cartridge with the same performance that you can get from a "standard cartridge. For instance the 24 GPC looks like it can approximate a 243. The 7mm valkarie looks to approximate the 7-08. My turn off is extensive brass prep. Also there's not enough test info that I've found to convince me to make a choice at this time. Looking for a flat hunting round for deer and hogs with some good energy on impact. Probably no further than 400+ yards. I tried the 6.5 Grendel and was not impressed. I want something that has a muzzle velocity closer to 3000 fps.
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BIGGDAWG

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Reply with quote  #6 
Quote:
Originally Posted by GSI
So I've been intrigued with the AR-15 variants for some time. What I'm interested in a hunting cartridge with the same performance that you can get from a "standard cartridge. For instance the 24 GPC looks like it can approximate a 243. The 7mm valkarie looks to approximate the 7-08. My turn off is extensive brass prep. Also there's not enough test info that I've found to convince me to make a choice at this time. Looking for a flat hunting round for deer and hogs with some good energy on impact. Probably no further than 400+ yards. I tried the 6.5 Grendel and was not impressed. I want something that has a muzzle velocity closer to 3000 fps.


There is 6mm gt brass now so making any of the fat cats is simply running through die and trimming easy as that.  and you are correct that the 7mm valkyrie is almost at 7-08 power in an ar15. the 24 gpc is about 90% of a 243 the 6mm lynx is 98% and same goes for the other fat cats they are 95-98 % of the full size rounds. 


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GSI

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Reply with quote  #7 
Will the Lynx require the same "cut out" in the front of the magazine that the 7mmValkyrie does?
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BIGGDAWG

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Reply with quote  #8 
Quote:
Originally Posted by GSI
Will the Lynx require the same "cut out" in the front of the magazine that the 7mmValkyrie does?

the 7mm dont require it. but some bullets are more accurate if you run them at 2.34 oal.  only the 139 sst really needs it.   the lynx it comes in handy if running 108 and 115 but it isn't required either. just performance is better with a few bullets. lighter bullets it is a non issue.  now i need to clarify, the original lynx needs the windowed mag but i pretty much am not selling that one anymore i switched to the lynx 2 so it uses the dasher case and 40 deg shoulder and the case is shorter so bullet fit is much better and the windowed mags are not really needed

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battle rattle

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Reply with quote  #9 
Quote:
Originally Posted by Acronin243
The 6mm Mongoose to me is a .223AI but have the bullet selection of 6mm.

i see it as an Improved 6x45, not sure ATM who gets the credit, JWTHARPE ?
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BIGGDAWG

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Reply with quote  #10 
Quote:
Originally Posted by battle rattle
i see it as an Improved 6x45, not sure ATM who gets the credit, JWTHARPE ?

yes Wade designed the mongoose and did a great job

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