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458 socom

The .458 SOCOM (11.63×40mm) is a moderately large round designed for a specialized upper receiver that can be mounted on any AR-15 pattern lower receiver. The 300-grain (19 g) round offers a supersonic muzzle velocity of 1,900 ft/s (580 m/s) and 2,405 ft⋅lbf (3,261 J), similar to a light .45-70 but with a much smaller case.

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Recent contents
  1. B

    458 Socom. Brass bullets and knowledge.

      1. Want to Buy
      2. Want to Trade For
    • Portland
    • Oregon
    Looking for a couple cases. I don't really think I need to have 100 brass cases of this. Oh and the bulk box of 458 tips.... Don't really know which one I'm looking for yet... but I'd love to see and get a few of this and that. So why not post and ask for lecture and education. The...
  2. Robert96

    Looking for 458 socom / 50 Beowulf uppers

      1. Want to Buy
      2. Want to Trade For
    • Salem
    • Oregon
    Looking for 458 socom / 50 Beowulf uppers, Bear Creek Arsenal is fine. I have cash, ammo surefire weapon lights, Kevlar vests and other stuff to trade.
  3. Unicykle

    BCA 458 socom upper complete SPF

      1. For Sale
    • $200
    • Milwaukie
    • Oregon
    Complete BCA 458 socom upper. New only factory fired. It actually seems pretty darn nice for what it is, nicer than I expected.From what I can tell it has the correct feed ramps on the barrel extension for 458 socom and I hand cycled rounds to function test several times and had no issues. $200...
  4. gvrrett843

    Never fired 458 socom AR complete upper

    I have a never fired bca upper in 458 socom I’m looking to get rid of, got it in a trade deal but have no use for it also have ammo I can throw in for the right price. 175 obo without ammo
  5. B

    Hornady DGS Projectiles for reloading, ...458 caliber....458 Socom, 45-70, Not loaded Ammo!

      1. For Sale
    • Vancouver
    • Washington
    Up for your consideration is: One, full box (un-opened) Hornady DGS .458 caliber projectiles $50.00 (full retail $99.00/box) One, half box (27ct) Hornady DGS .458 caliber $25.00 Both boxes/ full lot $75.00 Will split the lot if you only want one box. Face -to-Face prefered. Please email/ reply...
  6. Espire

    Question with Dillon 1050/RL1100 and 458 Socom

    Afternoon all. Looking for some help here. Friend of mine upgraded from a 650 to an RL1100. One of the calibers he reloads is 458 socom. It seems there is no conversion kit for that caliber. Has anyone by chance put together a conversion listing for this caliber by chance? As always...
  7. SDR

    458 SOCOM Ammunition for sale or trade

      1. For Sale
      2. For Trade
    • Mulino
    • Oregon
    23 rounds of 458 SOCOM... I believe 12 rnds of 350 Grn... 11 rounds of 405... I unfortunately can't remember much about these... Trade for 10mm, 357 magnum,41 magnum... Amounts to be determined as it'll depend on the offering...
  8. Erick

    308 and 458 Socom dies...

      1. For Sale
    • $20
    • Forest Grove
    • Oregon
    I have a new set of rcbs 308 dies in the green box, and a 4 piece set of Lyman dies for the 458 Socom... $20 for the rcbs and $60 for the Lyman... I can meet in the Hillsboro to Forest Grove area.
  9. wingman33

    458 SOCOM ammunition

      1. Want to Buy
      2. Want to Trade For
    • Beaverton
    • Oregon
    Title says it subs or super really whatever type you got. Have cash but rather trade for ammo/parts or accessories. Please pm to keep thread clean. Thank you.
  10. arakboss

    Buy now price for 458 SOCOM Brass.

    What would be a good price for in stock 458 SOCOM brass cases right now? Edit: About 77 cents per case shipped, for Starline brass, is the best deal I could find in stock. That seems high to me but I haven't bought 458 SOCOM brass before.
  11. T

    458 socom reloading Data

    I'm reloading for my 458 socom. I'm loading 350 grain berry's RN and have had some pretty good luck with hodgdon H110 accurate 1400 and just did some with accurate 2200. There doesn't seem to be a lot in the way of data though. If anyone has any experience I'd be grateful for the help.
  12. arakboss

    458 SOCOM or 450 Bushmaster?

    While I am taking a break from my firearm spending freeze, I want to purchase a big bore AR upper. I am leaning towards 450 BM because I have a ton of 45 projectiles already but might consider 458 SOCOM. I will most likely be running this in single shot mode through the magazine and sometimes...
  13. B

    458 Socom Barrel NIB

      1. For Sale
    • $225
    • Woodland
    • Washington
    $225.00 Up for sale is a brand new, never been mounted or shot, Tromix 458 Socom Barrel. This is a 16.25" Chrome Molly barrel. This is the barrel only...no bolt included. It is threaded 5/8x24 16.25″ Barrel profile is .900″ under the hand guards, .875″ at the gas block, and .800″ at the muzzle...
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