450 Bushmaster, 458 Socom, or 50 Beaowulf

[kmk1012]

I have been toying with the idea of building a big bore upper for my AR rifle lower and after several months of reading can't make a decision. I'd be willing to pay or trade goods to compensate for the ammo. Really just looking to only put ten rounds or so down range. If anyone has one maybe we could meet up?

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[DirectDrive]

I like the SOCOM features better than the other two and eventually will build one.
Hope someone can help you out.

Hint:
Don't show any favoritism like I just did.

 

[IronMonster]

I have heard the 450 Bushmaster is more or less dead. I think the 458 has the most support but don't think there is anything wrong with the Beowulf. There is a new big bore AR. If I recall it's a .510 and had massive lumps of projectiles available (in the 600-700 gr size)

 

[IronMonster]

I guess it's a .308 chassis


.510 Beck, A 690 Grain Subsonic Beast For Your .308 Lower - The Firearm Blog

 

[IronMonster]

[SHOT 2016] AR platform .510 Beck - The Firearm Blog

 

[kmk1012]

Too bad all I have is a measly AR15 lower, LOL! That thing is a beast!

 

[The Heretic]

Meet the .45 Raptor: .460 S&W Magnum for semi-auto rifles

 

[Roop]

^^^ Designed for use in large frame (read ar10) style rifles. It could probably work in an ar15 though, if loaded a bit short. COAL is 2.300".

45 RAPTOR

 

[The Heretic]

^^^ Designed for use in large frame (read ar10) style rifles. It could probably work in an ar15 though, if loaded a bit short. COAL is 2.300".

45 RAPTOR

They specifically state that it won't work in an AR15 because of the pressures on the bolt. The guy who has the license on it, will only give a license to those who will make an upper based on an AR10.

I found it interesting because I could shoot the same ammo in my 460V revolver. The only other rifle chambered for .460 S&W Mag is a $3K+ custom made lever action, which while I am sure it is worth every penny, is a bit above what I want to spend.

 

[2Wheels4Ever]

The 458socom has better bullet variety, and uses standard ar15 mags. But do to the straight walled 50beo, it is easier to reload. You really can't go wrong with either, but I think most have strayed towards 458.

 

[DirectDrive]

The 458socom has better bullet variety, and uses standard ar15 mags. But do to the straight walled 50beo, it is easier to reload. You really can't go wrong with either, but I think most have strayed towards 458.

Yep, that's a huge plus that the 458 does not need special mags.

 

[bolus]

Too bad all I have is a measly AR15 lower, LOL! That thing is a beast!

You can get a 50 BMG upper for that 'measly' ar15 lower. FYI

 

[kmk1012]

Sooooo, does anyone actually own one? I'm hoping for an answer from someone who has personally shot one or owns one. If not, I'm always willing to be a guinea pig.

 

[FireArm]

.458 Beo Uppers At Primaryarms.com are on sale for $499. Your welcome!

 

[kmk1012]

.458 Beo Uppers At Primaryarms.com are on sale for $499. Your welcome!

Dang, that is an awesome deal!!! Thanks for the heads up!!!

 

[FireArm]

I build alot of stuff and was seriously considering this, but I have to keep tellying myself no new projects. I need a surgery. Thats definitely a price id buy this upper at.

 

[DirectDrive]

Dang, that is an awesome deal!!! Thanks for the heads up!!!

16" here...
Radical Firearms 16'' 458 SOCOM COMPLETE Upper w/FHR Handguard

 

[FireArm]

Except thats not available. its currently on order.

 

[uscsoldier]

Do you reload, if you do and looked at the components in the prices I think the decision would be made up for you

 

[WillaminaOR]

I have a 458 you can put a couple rounds through. Just pm me.

Bryan