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 ??? Its crossed my mind a time or two .
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 ??? Its crossed my mind a time or two .
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
Last edited by Gray Fox; 01-15-2023 at 11:49 PM.
Just did a 50 AE on a bolt gun. Same rim size as the 45 ACP.
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.
If I'm not mistaken the .50 AE was based on a rebated rimless rifle cartridge, a .283 something if I recall. GF
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"
Last edited by lar45; 01-27-2023 at 09:01 PM.
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.
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |