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ultra mag

.300 Remington Short Action Ultra Magnum (also known as 300 RSAUM, 300 RSUM or 300 Rem SAUM) is a .30 caliber short magnum cartridge that is a shortened version of the Remington 300 Ultra Mag, both of which derive from the .404 Jeffery case. The Remington Short Ultra Mag was put on the market shortly after Winchester released its 300 WSM round in 2001, resulting in the Winchester product getting the marketing advantage that has eclipsed the Remington offering.

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Recent contents
  1. sonnydaniels

    New, unfired Remington Model 700 chambered in .338 Remington Ultra Mag with lots of extras

      1. For Sale
    • $1600
    • Winlock
    • Washington
    New, unfired .338 RUM AWR (American Wildnerness Rifle) - parkerized ans cerakoted with 5R rifling. Comes with factory box and paperwork Upgrades: Stocky's Carbon Fiber Stock Area 419 1 piece picatinny 20MOA mount Arc cut Zeiss Precision Ultralight 30mm Low rings with anti-can't bubble level...
  2. sonnydaniels

    Redding 60874 Type S Elite Bushing Die Set 338 Rem Ultra Mag New in Box

      1. For Sale
    • $150
    • Winlock
    • Washington
    New In Box--get it cheaper here than anywhere else. One of the dies looks like it may have slight discoloration in the picture--it is hard to tell depending on the light. I would put it in an ultrasonic if I planned on using it, but I wouldn't be able to list it as new if I did. I assure you...
  3. AlaskinAssasin

    300 ultra mag 1x fired brass

      1. For Sale
      2. For Trade
    • $100
    • Stayton
    • Oregon
    42 pieces 1x fired 300 ultra mag brass. Asking $100. Will trade for 300bo, 5.56 or 9mm ammo
  4. MaDSkillZ503

    300 ultra mag ammo

      1. For Sale
    • Blackfoot
    • Idaho
    No longer have the gun. So looking to sale left over ammo. 97 rounds total. Looking for 60 per full box and will throw in the extra 17 rounds with 4 full box purchase.
  5. rhollister71

    **PENDING PICKUP**300 Rem Ultra Mag Brass

      1. For Sale
    • $50
    • Hillsboro
    • Oregon
    34 brass 300 RUM 18 Nickel Plated 50.00 Tumbeled
  6. sonnydaniels

    Unfired Remington Model 700 AWR 338 Remington Ultra Mag Cerakoted 5R rifling - Swarovski 5-25x56 X5i scope and lots of upgrades

      1. For Sale
    • Winlock
    • Washington
    I am taking the plunge and going to get married soon. I'm trying to clear out some items to help pay for an engagement ring and a wedding, etc. please take a look at all my other listings. This listing is for a brand new, unfired Remington Model 700 AWR in 338 RUM. I bought this a few years...
  7. rhollister71

    **PENDING PICKUP**RCBS DIES**** 7MM REM MAG 243, 300 WIN MAG 300 REM ULTRA MAG,

      1. For Sale
    • $25
    • Hillsboro
    • Oregon
    Reloading lot, selling for a friend ALL PRICES ARE OBO!! 7MM REM MAG DIE $20.00 OBO 300 WIN MAG DIE $20.00OBO 243 WIN $20.00 OBO 300REM ULTRA MAG BRAND NEW $20.00 OBO 300 WIN X2 $20.00 EACH OBO
  8. CreepingDeath

    338 RUM Ultra Mag Brass

      1. For Sale
    • $50
    • Corvallis
    • Oregon
    50pcs. total. Two pieces were new but threw them in the tumbler with the rest. All Remington headstamp except for 3 nickel FC cases. $50 pick up in Corvallis/Albany $60 shipped priority mail. OBO
  9. F

    7mm ultra mag brass

      1. For Sale
    • $250
    • Battle ground
    • Washington
    450 plus rounds to be used for reloading components once loaded
  10. nehalemguy

    7MM Remington Ultra Mag

      1. For Sale
    • $30
    • Banks
    • Oregon
    Single full box of factory Remington brand 7MM Remington Ultra Mag loaded with 160 GR Nosler Partitions. $30 picked up at my office in Banks, OR.
  11. SDR

    375 Remington Ultra Mag ammunition

      1. For Sale
    • $60
    • Canby
    • Oregon
    220 rounds... 8 boxes of 20 rounds of 270 Grn Hornaday soft point... 3 boxes of 300 Grn Swit A frame SP... Listed price is Per box... $60.00
  12. SDR

    Remington 700 375 RUM Remington ultra mag Prelock With ammo

      1. For Sale
    • $1100
    • Canby
    • Oregon
    Remington 700 in 375 Remington Ultra Mag in Xlnt condition sitting in a HS precision stock... Included in the sale: Talley rings... 4 boxes of factory ammunition... What I believe to be the original OEM stock... 50 pieces of new Remington brass... Additional 375 RUM ammunition available for...
  13. SDR

    Remington 700 375 Remington ultra mag / RUM - Cash offers considered

      1. For Sale
    • $1100
    • Canby
    • Oregon
    This rifle is unfired and sitting in a Bell & Carlson stock... I have the factory synthetic stock as well... Available for sell is a couple hundred and then some rounds of factory ammunition... $1200 for the rifle as pictured... ((( 4 boxes of factory ammunition is added to this sale at the...
  14. BiggerHammer

    Want to trade 7mm Ultra Mag brass for .300 Ultra

      1. For Trade
    • $0
    • East Wenatchee
    • Washington
    I would like to trade some once fired, nickel coated 7mm Remington Ultra Magnum brass with a "Barnes" head stamp for some .300 Ultra Magnum brass. This brass is from Barnes factory 145gr LRX ammunition.
  15. Guys Guns

    Mossberg 835 ultra mag

      1. For Sale
    • $400
    • Ridgefield
    • Washington
    I have have a black shot gun with all the trimmings needs another barrel to shoot slugs no rust or pitting full choke double sight posts shoots 2 and three quarter 3 inch and 3 and one half nice shotgun just too much. thanks for looking obo
  16. misterarman

    Sale Pending Funds/// Nosler .300 Rem Ultra Mag Brass

      1. For Sale
    • $20
    • Vancouver USA
    • Washington
    72 count Plus 4 primed. $20 Will ship at cost minus the 4 primed passes. misterarman AKA John
  17. misterarman

    Hornady 7mm Rem Ultra Mag 2 Die Set

      1. For Sale
    • $15
    • Vancouver USA
    • Washington
    $15 Will ship at cost. misterarman AKA John 360.771.0013
  18. F

    NEW box of Remington 300 Ultra Mag 180gr Swift Scirocco PR300UM3

      1. For Sale
    • $70
    • Canby
    • Oregon
    Have a new full box of 20rds 300 RUM. $60.00 cash. Local pickup in Canby.
  19. D

    (100) Unfired Norma 300 Remington Ultra Mag Brass

      1. For Sale
    • $150
    • Farr West
    • Other
    I have 100 cases of unfired Norma 300 Remington Ultra Mag brass. Asking $150 shipped. Shoot me a PM if you are interested.
  20. X

    Remington 300 ultra mag brass new

      1. For Sale
    • $1
    • Spokane
    • Washington
    Remington brand 50 pc. Sealed factory bag. 80.00 Pics soon
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