458 SOCOM Anyone loading or shooting?

[sqlbullet]

It is a pretty good deal as their price is essentially the price you would pay for parts if you went DIY.  I already have all the needed tools to build AR15/10 rifles, so I will probably roll my own so I know the crush washer is on right and everything is torqued to spec.

There are some reports of poor QC/CS on this company, but also some guys got great guns.

[Rich10]

I don't want to hijack here, I'll just say from my experience the Radical Firearms guns are pretty good.  I've had two, both pistol 5.56 ARs.  For some reason one ran perfect and one was slightly rough and ran perfect with a different buffer.

[sqlbullet]

Glad you had a good experience.  I haven't tried them myself.  They certainly seem to spec good parts.

[Jags]

Been searching the web for 458 SOCOM reloading data and stumbled on this thread.  A question for "The_Shadow".  Where did you get those reloading data pages that you show in your photos?  Are they out of the Hornady reloading book?  Is it available online?

Also if anyone else knows some good sources for 458 SOCOM reloading data it would be much appreciated!

Thanks!

[The_Shadow]

Hello Jags, and welcome to the forum!  The pages you are referring to I made as a data sheet for ammo I actually loaded for my nephew.  I collected some of the info about the bullets from Hornady's website to produce the document pictured.  Some of the load data that I had studied was gathered from other 458 SOCOM shooters (there are several groups on Facebook and youtube).   

Some of the pull-down info was gathered from ammo he purchased so we could learn from.  You can find that info here;
http://10mm-firearms.com/factory-ammo-pull-downs/458-socom-commercial-pull-downs/

I was studying everything about the 458SOCOM and compiled all the data, pictures, PDF files, copied data into word documents as well,  this was in the effort to produce him some good loads using LilGun powder.  I communicated with several people to get a better understanding of what worked and what they were doing.

There is also some websites to study info;
http://www.teppojutsu.com/458.htm
http://458socomforums.com/index.php
http://www.calguns.net/calgunforum/showthread.php?t=604257

I hope this info helps you, Best regards!

[Jags]

Thanks for all the great info!!  It's going to help a lot!

I've been doing the same thing going through all kinds of forums and picking up bits of info here and there and putting it all into a text file.  I think I've got all the numbers I need to get started in working up some loads.

Thanks again!!

[lancer 49]

I have found that a case gauge is almost a must to ensure your rounds will go into battery. Once I ordered and rec'd mine my range trips were a lot less frustrating.

[lancer 49]

Lancer mags are the way to go as they have no separation rib down the front which limits length on single stack 458. Metal GI mags also work but may need slight modification for some rounds.

[Schrambo]

My 16" 458 SOCOM loves the SBR 300gr TTSX pull-down load listed in the factory section here...  I'm currently working up 500gr subsonic loads for my 10.5"...  Lotsa fun with the 500gr subs, but they drop like a brick after 50 yds...

[The_Shadow]

Here is some info I have for the Hornady 500 gr
HORNADY 500 gr RN 458 SOCOM InterLock®
STAR LINE BRASS length 1.5740"  Base Dia. 0.5390"
Hodgdon Lil'Gun 21.0 grains (not subsonic)
CCI 350 Large Pistol Primers
Bullet length 1.3365"  with 0.6260" outside 0.7105" inside case
COAL 2.2000"  ( 2.240" will pass the case gauge)
Velocity 1130 fps 8" and 1280 fps 16"

SUBSONIC Stuff...
STAR LINE BRASS length 1.5740"  Base Dia. 0.5390"
CCI 350 Large Pistol Primers
COAL 2.2000"
Hodgdon Lil'Gun 20.5  grains made 1099 fps
Velocity 1050 fps (SUBSONIC)  8" barrel was 1010 fps
These guys were testing Hodgdon Lil'Gun 20.0 grains (PrepperKip) & 19.0, 19.5 20.0 grains (TJ KIN)

[Mike D]

Tagged to follow.

I currently load the 300 grain TTSX, 325 FTX, 300 gain frangibles (can't remember manufacturer) and 500 grain outlaw state expanding subsonics.

Unfortunately I've yet to have an opportunity to test any of them on an animal.

No volunteers when I have it with me.


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[The_Shadow]

I am interested in doing pull-downs of other commercial loadings like from Black ButterFly Ammunition and also from Bishop Ammunition Manufacturing  to learn what powder they are loading with and how much...or even if you can pull them yourself and document what you find or anyone who can send a round or two for documentations contact me.

[Riddim Guy]

The 450 BM uses the same bullets as the SOCOM.

Based on my understanding the 450 Bushmaster uses .452 projectiles and the 458 SOCOM uses .458 projectiles.  You can run .458 bullets through a die and size them down to .452, but they aren't the same family of bullets.

1/23/17 Yes, sqlbullet you are correct. Since posting I have taken two black bears that dropped on the spot or within 30 yards of being shot using the Hornady 250 FTX bullet.
I will be reloading with Hornady XTP for plinking but will stay with the 250 FTX for deer and black bear hunting.
Plus my 'friend' Tim Legendre had a lot to do with the 450 BM as it was originally called the 45 Professional.