Show Your Custom Rifles With Granite Mountain Arms Actions

[JD Noblin]

I bet the members of this forum have some fantastic custom rifles build on the Granite Mountain Arms action. Post up your GMA rifle and tell us a little about it.

Below is what I call my "heavy plains game" rifle in 338 Norma Magnum. It's built on a GMA African Magnum action with a 24" McGowan barrel milled into a sporter octagon barrel. The wood is Turkish Walnut and the action finish is rust blue with screw heads, extractor claw and trigger in nitre-blue. The bolt shroud, pistol grip cap, and rings are color-cased. The action has accent engraving and some minor gold lines. This rifle shoots a 250gr Northfork soft at 3015fps. I've taken a variety of plains game with it with 99% of the animals dropping to the shot, including eland.

 

[krish]

Nice looking rifle.
Krish

 

[VertigoBE]

Very nicely executed. Congratulations!

 

[Hunting Hitman]

My matching set of GMA actions. 505 Gibbs & 375 H&H.

HH

 

[JD Noblin]

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My matching set of GMA actions. 505 Gibbs & 375 H&H.

HH

Those look great! Love the color-cased actions! Can you tell us more about the 505 and your hunts with it?

I don't own a 505 but am thinking about building one. My favorite safari writer is John A. Hunter and one of two cartridges he loved the most was a 505 Gibbs (the other being a 500 Nitro Express).

 

[uplander01]

Top is Dennis Olson 416 Rigby, serial #0096, action from the Prescott AZ location. Bottom unknown maker, very early rifle sold through Empire Rifles, East African Model, 500 Jeffery,pictured in Terri Weilands Book of Big Game Rifles.

 

[Nevada Mike]

404 Jeffery - Magnum length, LH, small ring GM action, Pacnor barrel, weighs 9/14 made by Reto Buehler. Taken buff and eland.

 

[Ku-winda]

My GMA double square bridge Mauser in 404 Jeffery. Don’t actually know which smith built it, but am told the stock was done by Joe Smithson. Feeds like a charm and is sub minute with Swift factory 400 gr A-frames.

 

[BeeMaa]

My GMA double square bridge Mauser in 404 Jeffery. Don’t actually know which smith built it, but am told the stock was done by Joe Smithson. Feeds like a charm and is sub minute with Swift factory 400 gr A-frames.


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I really like the grain of your stock. Nice mixture of streaking with incredibly straight grain. The whole rifle is very business-like. It was made to be a rifle that's used instead of simply admired. It would not surprise me to see something like this on the shoulder of a PH tracking buffalo. Well done.

 

[Ku-winda]

Many thanks @BeeMaa - I feel the same way, but you still made my day! When I took it into Matt at Hill Country Rifles to have the scope mounted, he said the craftsmanship was on par with our very top-gunmakers and also made your exact same comment about the stock having the proper grain for maximum strength. I appreciate your thoughts.

 

[zephyr]

505 Gibbs, GMA African Magnum, Krieger Barrel, Bastogne Walnut
24" Barrel 14.5" LOP with a 1/4" cast, 11lbs empty 11.5 Loaded 3 down one up, Sights filed in for 30yards Built by Mark Peterson Vt....
August 2022 Roger Whittall Safari Humani Zimbabwe
Tuskless Ele
Cape Buffalo
Bush Pig

 

[Brandon.Gleason]

Beautiful rifles, all. Had a chance to stop by Matt Robert's shop in VT earlier this year (MNR Customs). He's doing quite a bit on GMA actions. I keep weighing one of his Hatari rifles in .416 Rigby or .404 Jeff vs another safari....