The Accurate Reloading Forums
Garand in 458 Win Mag

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https://forums.accuratereloading.com/eve/forums/a/tpc/f/4711043/m/3481060672

17 October 2023, 04:12
TonyRumore
Garand in 458 Win Mag
quote:
Originally posted by TonyRumore:
There's more to this than just the diameter of the case/rim. A straight wall case will produce less back pressure than one that is necked down. I'm not speculating, or calculating. I have actually tested it to failure.

A 458 Win Mag case, necked to 30 caliber, will in fact produce more back pressure on the bolt than a 30'06, but with the case straightened out to 46 caliber, that pressure will be reduced. I have no idea if it's reduced back down to 30'06 levels or not.

Tony

17 October 2023, 04:16
TonyRumore
Double Post
19 October 2023, 03:45
skl1
Apparently McCann Industries, who made my adjustable gas plus, made these 458 Garands for a while in the early 2000's:

https://www.thefirearmblog.com...-458-win-mag-garand/
11 November 2023, 08:49
lavaca
I've shot thousands of rounds through a Garand, in competition and in practice. It's a wonderful action, as Patton said, the greatest battle implement ever devised. But it was never devised to handle a .458 500 grain round. I'd never shoot that.
16 November 2023, 08:28
Wildcatter
Well…I’ll get to it and report back.


Shoot the largest caliber you can shoot well, and practice, practice, practice.
18 November 2023, 11:18
Lincs Stalker
Perhaps a 20,000 round endurance test will prove these theories.
24 November 2023, 07:54
Wildcatter
quote:
Originally posted by Lincs Stalker:
Perhaps a 20,000 round endurance test will prove these theories.


Of 458?!?! rotflmo


Shoot the largest caliber you can shoot well, and practice, practice, practice.