500 Auto Max …. Anyone ???

[beechbum444]

A company took the 500 s and w and stuffed it into a big block AR platform , making it not a rimmed cartridge and renamed it to 500 Auto Max …. Has anyone put the round into a bolt gun yet ??? It’s crossed my mind a time or two ….

[Gray Fox]

That would be one heck of a whomp in an AR, probably on both ends. I just looked it up, it's being made by Big Horn Armory who offer loaded ammo from 350 to 600 grains. It has a suggested retail of just under $2,000. Their ad describes it as "pleasant shooting".GF

[John Taylor]

Just did a 50 AE on a bolt gun. Same rim size as the 45 ACP.

[Texas by God]

Just did a 50 AE on a bolt gun. Same rim size as the 45 ACP.

That would be fun, I’m sure.
What bolt action did you use?


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[DDriller]

The .458 SOCOM is based off the .50AE. Recoil is not bad at all shooting 500 grain bullets so I don't think the 500 Auto Max would be much worse.

[John Taylor]

That would be fun, I’m sure.
What bolt action did you use?


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It was for a customer, new Savage. Recoil was a little more than I expected.

[lar45]

Just did a 50 AE on a bolt gun. Same rim size as the 45 ACP.

I thought the 50AE had the same rim as a 44 mag? It was introduced in the Desert Eagle to use the same bolt face as their 44 mag guns, just a different barrel.

[Gray Fox]

If I'm not mistaken the .50 AE was based on a rebated rimless rifle cartridge, a .283 something if I recall. GF

[lar45]

The 450 Bushmaster is based on the 284 Winchester, Which has the 06 case head. I think the 475 Wildey may have been based off of the 284 also.

I found a couple of pieces of 50AE, the rim measured .508"
44 mag measured .506"
45acp measured .474"

[MarkP]

I thought about a 500 Auto Max in a SS Rem M Seven. A few yrs ago someone was selling bolt actions on Gun broker in 500 Auto Max, they had huge diameter bbl's with a brake, they looked nearly same diameter as the receiver, IIRC they were Rem 700's. Seemed silly to me to have a short bbl'd rifle that probably weighed at least 11 lbs

I have a 12.7 x 42 mm in a 16" and 10" AR-5 -- basically same size but a lower operating pressure. I have been shooting the LEE 440 gr FN in it. Recoil is like a 2-3/4" 12 ga slug fired from 18" - 21" Rem 870. I think the 500 Auto Max would have pretty hefty recoil. 60,000 psi vs Mid 30,000 psi. I have a 416 wildcat base on a 300 WSM in a Rem M Seven 400 gr @ 2,150 - 2,200 fps when velocity gets over 1,800 / 1,900 fps recoil starts getting uncomfortable from a bench. It is only 6.25 lbs with scope.