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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. TJ304

    Brass: 458 SOCOM and 300 Blackout (BLK)

      1. For Sale
      2. For Trade
    • $4
    • Lake Grove/Lake Oswego
    • Oregon
    Small amount of these, but rare enough that I thought someone might need them. 1. 14 pieces of 458 SOCOM $4 2. 25 pieces of 300 Blackout $4 Meet at Bass Pro (formally known as Cabala's) for pick up
  2. Dipstick

    Freedom Munitions 458 SOCOM squib

    Shooting at ARPC yesterday I took out a new build with a complete K&M 458 SOCOM upper. I had 2 boxes of Freedom Munitions 300gr RNFP. I fired 4 rounds, the 5th round made a pop and no cycle. I pulled the gun down and had a bullet stuck in the bore with lots of unburnt powder behind it. The...
  3. N

    6.5 grendel 458 socom

      1. Want to Buy
      2. Want to Trade For
    • Portland
    • Oregon
    looking for both new factory rounds
  4. Spec.-K

    Hornady 500gr .458 Projectiles FMJ and SP

      1. For Sale
      2. For Trade
    • $100
    • Kelso
    • Washington
    I've got a bunch of heavy pills that I'd like to sell, or trade for lighter weight ones in the 350gr range. There are 75 of each type, a total of 150 bullets. Asking $100, or trade for 350gr or so, or trade for- *Sub-X Bullets- .452, .357, 303, 338 *Reloading Dies/supplies/Powder, other big...
  5. arakboss

    Done  KM Tactical 458 SOCOM AR15 Upper Complete $224 Shipped with code 20OFF

    https://kmtactical.net/product/45socom-ar-15-complete-upper-one-off/?pao_key=7541852aed286ec6b648ff2601621542&pao_edit=1
  6. MattandKim

    458 socom brass

      1. Want to Buy
    • AUMSVILLE
    • Oregon
    I'm looking for 458 socom brass and projectiles if anyone has them and willing to part with them please let me know. Pm me please I'm in aumsville oregon
  7. arakboss

    Done  Budget 450BM or 458 SOCOM Barrel + BCG $120 plus shipping.

    https://kmtactical.net/product/16-450-bushmaster-or-458-socom-ar-15-barrel-bcg-combo/
  8. phidelt208

    .458 Bullets 45-70 458 Socom

      1. For Sale
      2. For Trade
    • $12
    • Eugene
    • Oregon
    See photo for bullets .458 300gr. Hornady 50 count. .458 300gr Sierra. 50 count. $35 for All 100 for $35 .458 410gr Sub-X. 200 count SOLD Will trade for 9mm bullets or Heavy 223 bullets. Or Hornady 45-70 brass IMR 4198
  9. arakboss

    BCA 458 SOCOM AR15 Rifle. $382

    https://www.bearcreekarsenal.com/458-socom-16-parkerized-heavy-barrel-1-14-twist-15-mlok-rc-936-rifle.html Currently ships free but the Free shipping ends this evening.
  10. CreepingDeath

    458 SOCOM Primed Brass (NEW)

      1. For Sale
    • $50
    • Corvallis
    • Oregon
    73pcs. total all Starline 72pcs. New primed 1pc fired $50. Pick up Corvallis/Albany area
  11. B

    Tromix barrel and XL upper. 458 socom

      1. For Sale
      2. For Trade
    • $400
    • Portland
    • Oregon
    Gotta do a clean out and I just keep not getting around to this. Anderson xl bigbore upper. Not finished. Tromix 16" new barrel. New. Mainly looking for a quick sale or I'll just put this back in hiding. $400 I'll consider trades.
  12. SDR

    458 Socom ammo

      1. For Trade
    • Mulino
    • Oregon
    This is left over from a rifle I played with years ago... Trade for: Win 32 special 44 Magnum 357 Magnum 10MM Only interested in brass cased jacketed ammunition...
  13. A

    458 socom brass - 50 rnds

      1. For Sale
    • $40
    • Cornelius
    • Oregon
    Gday Folks I will be clearing out my ammunition entirely due to moving overseas next year so keep an eye out for further postings. Purchases will be cash only and pickup location will be the Fred Meyers at the town of Cornelius. Sorry no shipping and no trades. 50 rnds of brand new 458 socom...
  14. T22

    458 socom brass

      1. Want to Trade For
    • Sherwood
    • Oregon
    In search of 458 socom brass, range pickups are fine. Willing to trade brass for brass or possibly some LRP or LPPs. Don’t need a ton, small amounts are fine.
  15. M

    458 SOCOM Ammo--Underwood 350 Grain FMJ

      1. For Sale
    • $30
    • Hillsboro
    • Oregon
    Recently found some factory new 458 SOCOM ammo I had lying around. Underwood brand, 350 grain FMJ (flat-nose profile). I have three boxes for sale, asking 30$ per box (there are 20-rounds in each box). Prefer to meet face-to-face, cash only. PM me if you have any questions.
  16. M

    458 SOCOM Upper--Bear Creek Arsenal Side-Charging 16" Barrel

      1. For Sale
    • $150
    • Hillsboro
    • Oregon
    Looking to sell my BCA 458 SOCOM Upper. I believe this is considered a Gen 1 version, so aside from a different charging handle design, muzzle device, and handguard, the specs should be the exact same as this...
  17. M

    458 SOCOM Upper--Bear Creek Arsenal Side-Charging 16" Barrel

      1. For Sale
    • $150
    • Hillsboro
    • Oregon
    Looking to sell my BCA 458 SOCOM Upper. I believe this is considered a Gen 1 version, so aside from a different charging handle design, muzzle device, and handguard, the specs should be the exact same as this...
  18. SgtAwesomeness

    Looking for 458 SOCOM or 450 bushmaster

      1. Want to Buy
      2. Want to Trade For
    • Milwaukie
    • Oregon
    I’m trying to avoid BCA but otherwise am open to other brands. I’m looking for a barrel/upper reciever but we can talk about full weapons I’ve got a 5.56 AR, break action shotgun, Kevlar lined plate carrier or a combination for sale. DM me and we can work something out
  19. B

    458 socom brass needed. 5,10?

      1. Want to Buy
      2. Want to Trade For
    • Portland
    • Oregon
    Needing some.brass to start the reloading of this. However I'm not going to need a huge bag..ever... Anyone in the Portland area or able to ship a couple of these? I don't need a ton of them. Heck 10 of these fit into my standard capacity magazine! Thank you!
  20. B

    Bigbore reloading help 458 socom rabbit hole.

    Ok. Got the BCA upper..yeah yeah. Got a tromix barrel and upper project. Working on the last of the parts to accumulate. However some checking awesome guy here pretty much gifts me the super coolest set of 458=socom dies for me to reload. Now I don't reload. I pew pew. Lots of pewing...
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