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.300 WBY MAG Ammo

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.300 Weatherby Magnum is a 30 caliber rifle cartridge created by Roy Weatherby in 1944 and produced by Weatherby. It has become the most popular of all the Weatherby cartridges.

The .300 Weatherby became the most popular cartridge of the Weatherby line and, historically, is responsible for initiating the general trend towards ultra velocity cartridges.

In 1963 Winchester released their .300 Winchester magnum as competition to the Weatherby cartridge. The Winchester offering had two significant advantages, inexpensive factory ammunition along with with with with the planer, more utilitarian rifles as opposed to the Weatherby rifles which at this time, were often considered somewhat garish in appearance by many shooters. The Winchester cartridge and rifles appealed to more reserved hunters, the Weatherby to those that favored extreme velocities.

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Latest products for .300 wby mag

  • GrabAGun WEATHERBY SELECT 300 WTHBY MAG 180GR HORNADY INTERLOCK 20 ROUNDS PER BOX for $55.39
  • GrabAGun Weatherby Select .300 Weatherby Magnum 165 Grain 20-Rounds Hornady Interlock for $56.29
  • Global Ordnance WTHBY H300165IL 300 WBY 165 INTERLOCK 2010 UPC: 747115437504 for $60.74
  • Global Ordnance WTHBY H300180IL 300 WBY 180 INTERLOCK 2010 UPC: 747115437542 for $60.74
  • Firearms Depot Wby Ammo 300wby 165gr Hrndy Inter for $60.98
  • Firearms Depot Weatherby, Select Ammunition, 300 Weatherby, 180 Grain, Interlock, 20 Round Box for $60.98
  • Foundry Outdoors Wby Ammo .300 Weatherby Magnum 180Gr. Hornady Interlock 20-Pk H300180Il for $63.81
  • Foundry Outdoors Wby Ammo .300 Weatherby Magnum 165Gr. Hornady Interlock 20-Pk H300165Il for $63.81
  • Palmetto State Armory Weatherby Select Plus 180 gr Hornady Interlock .300 Weatherby Mag Ammo - H300180IL for $66.03
  • Palmetto State Armory Weatherby Select 165 gr Hornady Interlock .300 Weatherby Mag Ammo - H300165IL for $66.03

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WEATHERBY SELECT 300 WTHBY MAG 180GR HORNADY INTERLOCK 20 ROUNDS PER BOX
WEATHERBY SELECT 300 WTHBY MAG 180GR HORNADY INTERLOCK 20 ROUNDS PER BOX
.300 wby mag
180 Gr
-
$2.77
$55.39
20 Rds
GrabAGun
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Updated: 3m ago
Weatherby Select .300 Weatherby Magnum 165 Grain 20-Rounds Hornady Interlock
Weatherby Select .300 Weatherby Magnum 165 Grain 20-Rounds Hornady Interlock
.300 wby
165 Gr
Brass
$2.81
$56.29
20 Rds
GrabAGun
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Updated: 3m ago
WTHBY H300165IL 300 WBY 165 INTERLOCK 2010 UPC: 747115437504
WTHBY H300165IL 300 WBY 165 INTERLOCK 2010 UPC: 747115437504
.300 Wby Mag
165 Gr
-
$3.04
$60.74
20 Rds
Global Ordnance
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Updated: 12m ago
WTHBY H300180IL 300 WBY 180 INTERLOCK 2010 UPC: 747115437542
WTHBY H300180IL 300 WBY 180 INTERLOCK 2010 UPC: 747115437542
.300 Wby Mag
180 Gr
-
$3.04
$60.74
20 Rds
Global Ordnance
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Updated: 12m ago
Wby Ammo 300wby 165gr Hrndy Inter
Wby Ammo 300wby 165gr Hrndy Inter
300 wby mag
165 Gr
Brass
$3.05
$60.98
20 Rds
Firearms Depot
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Updated: 2m ago
Weatherby, Select Ammunition, 300 Weatherby, 180 Grain, Interlock, 20 Round Box
Weatherby, Select Ammunition, 300 Weatherby, 180 Grain, Interlock, 20 Round Box
300 wby mag
180 Gr
Brass
$3.05
$60.98
20 Rds
Firearms Depot
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Updated: 2m ago
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Updated: 13m ago
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Weatherby Select Plus 180 gr Hornady Interlock .300 Weatherby Mag Ammo - H300180IL
Weatherby Select Plus 180 gr Hornady Interlock .300 Weatherby Mag Ammo - H300180IL
300 wby mag
180 Gr
Brass
$3.30
$66.03
20 Rds
Palmetto State Armory
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Updated: 6m ago
Weatherby Select 165 gr Hornady Interlock .300 Weatherby Mag Ammo - H300165IL
Weatherby Select 165 gr Hornady Interlock .300 Weatherby Mag Ammo - H300165IL
300 wby mag
165 Gr
Brass
$3.30
$66.03
20 Rds
Palmetto State Armory
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Updated: 6m ago
WEATHERBY SELECT
WEATHERBY SELECT
300 wby mag
180 Gr
Brass
$3.35
$66.99
20 Rds
Guns Com
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Updated: 1m ago
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Updated: 13m ago
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HSM/Hunting Shack BER300WBY210VLD 300Weatherby 210 VLD 20
HSM/Hunting Shack BER300WBY210VLD 300Weatherby 210 VLD 20
300 wby mag
210 Gr
-
$3.40
$67.99
20 Rds
GrabAGun
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Updated: 3m ago
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Updated: 12m ago
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Weatherby Select Plus 200 Grain .300 Weatherby Magnum Ammunition 20 Round
Weatherby Select Plus 200 Grain .300 Weatherby Magnum Ammunition 20 Round
.300 wby mag
200 Gr
Brass
$3.46
$69.29
20 Rds
GrabAGun
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Updated: 3m ago
Weatherby Select Ammo 300 Weatherby Magnum 165 Grain Hornady Interlock 20 Rounds
Weatherby Select Ammo 300 Weatherby Magnum 165 Grain Hornady Interlock 20 Rounds
300 wby mag
165 Gr
Brass
$3.50
$69.99
20 Rds
SMKW
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Updated: 8m ago
300 WBY MAG 180GR HORNADY INTERLOCK
300 WBY MAG 180GR HORNADY INTERLOCK
.300 Wby
180 Gr
Brass
$3.52
$70.49
20 Rds
Natchez Shooters
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Updated: 12m ago
Weatherby Ammo 300Weatherby 165GR Balistic Tip 20rds
Weatherby Ammo 300Weatherby 165GR Balistic Tip 20rds
300 wby mag
165 Gr
-
$3.60
$71.99
20 Rds
GrabAGun
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Updated: 3m ago
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Updated: 13m ago
HSM 300WBY210VLD 300WBY 210 VLD 2020 UPC: 837306003493
HSM 300WBY210VLD 300WBY 210 VLD 2020 UPC: 837306003493
.300 Wby Mag
210 Gr
-
$3.67
$73.44
20 Rds
Global Ordnance
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Updated: 12m ago
Hsm Trophy Gold, Hsm Ber300wby210vld    300wby 210 Vld        20/20
Hsm Trophy Gold, Hsm Ber300wby210vld 300wby 210 Vld 20/20
300 wby mag
210 Gr
Brass
$3.69
$73.74
20 Rds
Firearms Depot
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Updated: 2m ago
WTHBY H300200ELDX 300 WBY 200 ELDX 2010 UPC: 747115437559
WTHBY H300200ELDX 300 WBY 200 ELDX 2010 UPC: 747115437559
.300 Wby Mag
200 Gr
-
$3.74
$74.87
20 Rds
Global Ordnance
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Updated: 12m ago
Weatherby Select 300 Weatherby Magnum 180 grain Interlock Rifle Ammunition, 20
Weatherby Select 300 Weatherby Magnum 180 grain Interlock Rifle Ammunition, 20
300 wby mag
180 Gr
Brass
$3.75
$74.99
20 Rds
Optics Planet
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Updated: 0m ago
Weatherby H300165IL Select 300 Wthby Mag 165 Gr Hornady Interlock 20 Bx/ 10 Cs, 20, SBT
Weatherby H300165IL Select 300 Wthby Mag 165 Gr Hornady Interlock 20 Bx/ 10 Cs, 20, SBT
.300 wby
165 Gr
Brass
$3.75
$74.99
20 Rds
Optics Planet
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Updated: 0m ago
Wby Ammo 300wby 200gr Eld-x 20/200
Wby Ammo 300wby 200gr Eld-x 20/200
300 wby mag
200 Gr
Brass
$3.76
$75.16
20 Rds
Firearms Depot
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Updated: 2m ago
HSM TROPHY GOLD
HSM TROPHY GOLD
.300 wby
210 Gr
Brass
$3.80
$75.99
20 Rds
Guns Com
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Updated: 1m ago
Wby Ammo 300wby 165gr Blstc 20/200
Wby Ammo 300wby 165gr Blstc 20/200
300 wby mag
165 Gr
Brass
$3.93
$78.50
20 Rds
Firearms Depot
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Updated: 2m ago
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Updated: 13m ago
Weatherby Select Plus AccuBond 300WBY 200 Grains 20 Rounds
Weatherby Select Plus AccuBond 300WBY 200 Grains 20 Rounds
300 wby
200 Gr
Brass
$4.03
$80.69
20 Rds
GrabAGun
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Updated: 3m ago
Weatherby Select Plus .300 Weatherby AccuBond 180 Grain
Weatherby Select Plus .300 Weatherby AccuBond 180 Grain
300 wby mag
180 Gr
Brass
$4.07
$81.39
20 Rds
GrabAGun
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Weatherby Select Plus 200 gr Hornady ELD-X .300 Weatherby Mag Ammo - H300200ELDX
Weatherby Select Plus 200 gr Hornady ELD-X .300 Weatherby Mag Ammo - H300200ELDX
.300 wby mag
200 Gr
Brass
$4.10
$81.99
20 Rds
Palmetto State Armory
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Updated: 6m ago
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Updated: 12m ago
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Updated: 13h 27m ago
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Updated: 11h 27m ago
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Wby Ammo 300wby 180gr Nos Ab 20/200
Wby Ammo 300wby 180gr Nos Ab 20/200
300 wby mag
180 Gr
Brass
$4.29
$85.87
20 Rds
Firearms Depot
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Updated: 2m ago
Remington Core-Lokt Brass .300 WBY 180-Grain 20-Rounds CLPSP
Remington Core-Lokt Brass .300 WBY 180-Grain 20-Rounds CLPSP
300 wby
180 Gr
Brass
$4.30
$86.09
20 Rds
GrabAGun
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Updated: 3m ago
Weatherby Select Plus Hornady ELD-X Rifle Ammunition .300 Wby Mag 200gr ELD-X 3000 fps 20/ct
Weatherby Select Plus Hornady ELD-X Rifle Ammunition .300 Wby Mag 200gr ELD-X 3000 fps 20/ct
.300 Wby
200 Gr
-
$4.41
$88.29
20 Rds
Natchez Shooters
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Updated: 12m ago
Weatherby Select Plus Brass .300 WBY Mag 180-Grain 20-Rounds BTTSXLF
Weatherby Select Plus Brass .300 WBY Mag 180-Grain 20-Rounds BTTSXLF
300 wby
180 Gr
Brass
$4.42
$88.39
20 Rds
GrabAGun
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Updated: 3m ago
Weatherby Rifle Ammunition Select Plus Brass .300 WBY Mag 180 Gr 20-Rounds Swift Scirocco Bonded
Weatherby Rifle Ammunition Select Plus Brass .300 WBY Mag 180 Gr 20-Rounds Swift Scirocco Bonded
.300 Wby
180 Gr
Brass
$4.42
$88.39
20 Rds
GrabAGun
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Updated: 3m ago
Wby Ammo 300wby 200gr Ab 20/200
Wby Ammo 300wby 200gr Ab 20/200
300 wby mag
200 Gr
Brass
$4.48
$89.59
20 Rds
Firearms Depot
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Updated: 2m ago
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Updated: 13m ago
REM 29279 R300WB1 300WBY 180 PSPCL 2010 UPC: 047700070308
REM 29279 R300WB1 300WBY 180 PSPCL 2010 UPC: 047700070308
.300 Wby Mag
180 Gr
-
$4.66
$93.23
20 Rds
Global Ordnance
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Updated: 12m ago
Remington Ammunition 29279 Core-Lokt 300 Wthby Mag 180 gr Pointed Soft Point (PSP) 20 Bx
Remington Ammunition 29279 Core-Lokt 300 Wthby Mag 180 gr Pointed Soft Point (PSP) 20 Bx
.300 wby
180 Gr
Brass
$4.68
$93.61
20 Rds
Firearms Depot
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Updated: 2m ago
REMINGTON CORE-LOKT
REMINGTON CORE-LOKT
300 wby mag
180 Gr
Brass
$4.80
$95.99
20 Rds
Guns Com
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Wby Ammo 300wby 180gr Ttsx 20/200
Wby Ammo 300wby 180gr Ttsx 20/200
300 wby mag
180 Gr
Brass
$4.81
$96.28
20 Rds
Firearms Depot
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Updated: 2m ago
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Updated: 13m ago
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Updated: 12m ago
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Weatherby Select Plus Swift Scirocco Rifle Ammunition .300 Wby Mag 180gr BTHP 3175 fps 20/ct
Weatherby Select Plus Swift Scirocco Rifle Ammunition .300 Wby Mag 180gr BTHP 3175 fps 20/ct
.300 Wby
180 Gr
Brass
$5.15
$102.99
20 Rds
Natchez Shooters
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Updated: 12m ago
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Weatherby Select Plus Rifle Ammunition .300 WBy Mag 180gr TTSX 3240 fps 20/ct
Weatherby Select Plus Rifle Ammunition .300 WBy Mag 180gr TTSX 3240 fps 20/ct
.300 Wby
180 Gr
Brass
$5.30
$105.99
20 Rds
Natchez Shooters
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Nosler .300 Weatherby Magnum AccuBond 180 grain Brass Cased Rifle Ammunition, 20, SBT
Nosler .300 Weatherby Magnum AccuBond 180 grain Brass Cased Rifle Ammunition, 20, SBT
300 wby mag
180 Gr
Brass
$5.30
$105.99
20 Rds
Optics Planet
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Updated: 0m ago
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Updated: 12m ago
Weatherby B300180TTSX Select Plus 300 Wthby Mag 180 Gr Barnes Tipped TSX Lead F, 20, JHP
Weatherby B300180TTSX Select Plus 300 Wthby Mag 180 Gr Barnes Tipped TSX Lead F, 20, JHP
300 wby mag
180 Gr
Brass
$5.75
$114.99
20 Rds
Optics Planet
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Updated: 0m ago
Remington Core-Lokt Rifle Ammunition .300 Wby  SSB 3120 fps - 20/box
Remington Core-Lokt Rifle Ammunition .300 Wby SSB 3120 fps - 20/box
300 wby mag
180 Gr
Brass
$5.85
$116.99
20 Rds
Natchez Shooters
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Updated: 12m ago
Weatherby Select Plus Brass .300 WBY Mag 180-Grain 20-Rounds ABCT
Weatherby Select Plus Brass .300 WBY Mag 180-Grain 20-Rounds ABCT
300 wby mag
180 Gr
Brass
$6.40
$127.99
20 Rds
GrabAGun
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Updated: 3m ago
Core-Lokt 300 Weatherby Magnum
Core-Lokt 300 Weatherby Magnum
300 wby mag
180 Gr
-
$6.90
$137.99
20 Rds
Remington
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Updated: 19m ago
WTHBY N303180ACB 30378 180 ACCB 2010 UPC: 747115416271
WTHBY N303180ACB 30378 180 ACCB 2010 UPC: 747115416271
.300 Wby Mag
180 Gr
-
$6.92
$138.44
20 Rds
Global Ordnance
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Updated: 12m ago