.30-378 Weatherby Mag Ammo for Sale

Price History
.30-378 Weatherby Mag
WBY AMMO 30-378WBY 180GR HORNADY INTERLOCK 20/10
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Free Shipping > $1,000 CC Fee 3%
$3.85/rd $77.08 Bunker Hill Ballistics ★★★★★ (9)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Shipping $14 Free Shipping > $500 CC Fee 3%
$3.97/rd $79.32 Minutemen Defense ★★★★★ (54)
Low cost shipping boost

.30-378 Weatherby Mag Ammo Price Graph

Today's .30-378 Weatherby Mag Ammo average is $4.84/rd, 14% below the 180-day average of $5.63/rd. Over the last 180 days, the average peaked at $5.81/rd on April 29, 2026 and bottomed at $4.84/rd on September 5, 2026.

Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Free Shipping > $900 CC Fee 3%
$3.89/rd $77.80 Armed in Michigan ★★★★★ (714)
Weatherby H303180IL Select 30-378 Wthby Mag 180 gr Hornady Interlock 20 Per Box/ 10 Cs
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 CC Fee 3%
$3.90/rd $77.99 Cornerstone Arms ★★★★★ (373)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Free Shipping > $500
$3.95/rd $78.99 Cummings Family Firearms ★★★★★ (52)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$3.97/rd $79.32 Top Shelf Munitions ★★★★★ (2)
Weatherby H303180IL Select 30-378 Wthby Mag 180 gr Hornady Interlock 20 Bx/ 10 Cs
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$3.99/rd $79.71 Gun Wise
Weatherby Select .30-378 Weatherby Magnum Ammo 180gr Hornady InterLock 20 Rounds
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.00/rd $79.99 GunMag Warehouse ★★★★★ (71)
WBY AMMO 30-378WBY 180GR HORNADY INTERLOCK 20/10
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Free Shipping > $500
$4.00/rd $80.08 Timber Hole Outdoors ★★★★★ (5)
WBY AMMO 30-378WBY 180GR HORNADY INTERLOCK 20/10
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.00/rd $80.08 Tungsten Creek Tactical

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Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.00/rd $80.08 Vital Defense ★★★★★ (14)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Shipping $18
$4.04/rd $80.85 Blackbox Ballistics ★★★★★ (2)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.05/rd $81.00 Armored Boar Gunworks ★★★★★ (53)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Free Shipping > $100
$4.07/rd $81.48 Caliber Exchange ★★★★★ (1)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Free Shipping > $500
$4.09/rd $81.85 Safe Haven Defense
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.10/rd $81.95 Bulletproof Outfitters ★★★★★ (133)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.10/rd $81.99 2 If By Sea Tactical ★★★★★ (135)
Weatherby H303180IL Select 30-378 Wthby Mag 180 gr Hornady Interlock 20 Per Box/ 10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.10/rd $82.00 Loftus Firearms ★★★★★ (13)
Weatherby H303180IL Select 30-378 Wthby Mag 180 gr Hornady Interlock 20 Bx/ 10 Cs
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.15/rd $82.99 Kind Sniper ★★★★★ (61)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.15/rd $83.00 Darmok Firearms ★★★★★ (37)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.15/rd $83.00 CLB Guns ★★★★★ (45)
Weatherby 30-378 Hornady Interlock 180gr - 20rds
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Shipping $13 Free Shipping > $500
$4.16/rd $83.16 Axolotl Arms ★★★★★ (126)
Weatherby Select 30-378 Weatherby Mag 180 gr Hornady Interlock Box of 20
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.16/rd $83.20 De Leon RX & Sporting Goods ★★★★★ (216)
IN STOCK Weatherby .30-378 Magnum Ammo 180gr Interlock Ammunition - 20 Rounds
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.18/rd $83.49 Vizards Guns and Ammo ★★★★★ (1,070)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.25/rd $84.99 WTW Arms ★★★★★ (68)
WBY AMMO 30-378WBY 180GR HORNADY INTERLOCK 20/10
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.25/rd $85.00 The Gun Pantry ★★★★★ (192)
WBY AMMO 30-378WBY 180GR HORNADY INTERLOCK 20/10
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.25/rd $85.00 Echo 6 Weapons ★★★★★ (97)
Weatherby 30-378 Weatherby Magnum Ammo 180 Grain Hornady Interlock Box of 20
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.27/rd $85.42 Drifters Gear ★★★★★ (25)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.27/rd $85.42 Allied Arms ★★★★★ (310)
Weatherby Select 30-378 Wthby Mag 180 gr Hornady Interlock
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Shipping $13 Free Shipping > $350
$4.27/rd $85.47 Shadowsmith Ammo ★★★★★ (23)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.30/rd $85.95 The Arsenal Project ★★★★★ (16)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Shipping $20 Free Shipping > $1,000
$4.35/rd $87.00 Dave's Guns ★★★★★ (28)
WBY AMMO 30-378WBY 180GR HORNADY INTERLOCK 20/10
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Shipping $16
$4.40/rd $87.99 Riflenetics ★★★★★ (65)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.40/rd $87.99 Mad Wolf Armory ★★★★★ (3)
Weatherby H303180IL Select 30-378 Wthby Mag 180 gr Hornady Interlock 20 Per Box/ 10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.40/rd $87.99 Black Bayou Armory ★★★★★ (83)
WBY AMMO 30-378WBY 180GR HORNADY INTERLOCK 20/10
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Shipping $10 Free Shipping > $299
$4.45/rd $88.99 Canoe Creek Armory ★★★★★ (17)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.45/rd $89.00 Highland Arms ★★★★★ (49)
Weatherby H303180IL 30-378 Weatherby Magnum Hornady Interlock 180 Grain 20 Rounds
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.46/rd $89.20 Shooting Surplus ★★★★★ (193)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Shipping $15 Free Shipping > $500
$4.58/rd $91.52 Kinetic Armory ★★★★★ (3)
Weatherby Select Rifle Ammunition H303180IL, 30-378 Weatherby Mag, Hornady Interlock, 180 gr, 20 Rd/Bx
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.58/rd $91.52 Able Ammo ★★★★★ (397)
Weatherby WBY 30X378WBY 180GR INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Shipping $15 Free Shipping > $500
$4.60/rd $91.99 BuyAGun ★★★★★ (3)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Shipping $25 $25 Off Orders Over $200 Code LOCKNLOAD25
$4.61/rd $92.15 Scottsodg.com
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.75/rd $95.00 Birmingham Hill Armory ★★★★★ (16)
Weatherby Select 30-378 Weatherby Magnum 180gr Hornady InterLock SP 20rd Brass Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Shipping $12
$4.78/rd $95.52 Classic Firearms ★★★★★ (2,454)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Free Shipping > $700
$4.83/rd $96.68 Freedom Firearms ★★★★★ (2)
Weatherby Select Rifle 747115437580 30-378 Weatherby Magnum 180 Grains InterLock
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.85/rd $96.99 C-ME Firearms
Weatherby .30-378 Magnum Ammo 180gr Interlock Ammunition - 20 Rounds
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.85/rd $97.00 Vizards Guns and Ammo ★★★★★ (1,070)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case Ammo for MA, CT, NJ, IL, NY & CA Buyers
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.85/rd $97.00 Vizards Guns and Ammo ★★★★★ (1,070)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.88/rd $97.63 Don's Weaponry ★★★★★ (252)
Hornady Precision Hunter .30-378 Weatherby Magnum 220gr ELD-X – 20 Rounds - 80 Rounds
Hornady 220 Grains 80 Rounds Polymer New
UPC 090255822144 $5 Off - Use Code CALIBERKING
$4.93/rd $394.39 Gun Place ★★★★★ (206)
Hornady 82214 Precision Hunter 30-378 Wthby Mag 220 gr Extremely Low Drag-eXpanding 20 Bx/ 10 Cs
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144
$4.93/rd $98.63 Gman Sporting Arms
Weatherby Select 30-378 Weatherby Magnum Ammo 180 Grain Hornady Interlock Jacketed Soft Point Box of 20
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Free Shipping > $100
$4.95/rd $98.99 Midway USA ★★★★★ (119)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Free Shipping > $150
$4.95/rd $99.01 Lightning Strike Arms ★★★★★ (32)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$4.96/rd $99.15 Firearms Express
WBY AMMO 30-378WBY 195GR HAMMER CUSTOM
Weatherby 195 Grains 20 Rounds Brass New
UPC 747115449422
$4.97/rd $99.30 Gman Sporting Arms
Nosler Trophy Grade .30-378 Weatherby Magnum Ammo 210gr AccuBond LR 20 Rounds
Nosler 210 Grains 20 Rounds Brass New
UPC 054041601337
$5.00/rd $99.99 GunMag Warehouse ★★★★★ (71)
Wby Ammo 30-378WBY 180 Grain Hornady Interlock 20/10
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$5.01/rd $100.09 Shiner Tactical ★★★★★ (6)
Hornady Precision Hunter .30-378 Weatherby Magnum 220gr ELD-X – 20 Rounds
Hornady 220 Grains 20 Rounds Polymer New
UPC 090255822144 $5 Off - Use Code CALIBERKING
$5.01/rd $100.10 Gun Place ★★★★★ (206)
Hornady 82214 Precision Hunter 30-378 Wthby Mag 220 gr Extremely Low Drag eXpanding 20 Per Box/ 10 Case
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 CC Fee 3% Limit 8
$5.05/rd $100.99 Cornerstone Arms ★★★★★ (373)
Hornady Precision Hunter Rifle Ammunition .30-378 Wby Mag 220 gr ELD-X 3025 fps 20/ct
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Free Shipping > $900 CC Fee 3% Limit 8
$5.10/rd $101.99 Armed in Michigan ★★★★★ (714)
Hornady Precision Hunter Rifle Ammunition .30-378 Wby Mag 220 gr ELD-X 3025 fps 20/ct
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Limit 8
$5.13/rd $102.65 MCM Tactical ★★★★★ (60)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Free Shipping > $500
$5.15/rd $102.99 Timberlake Firearms ★★★★★ (11)
Hornady Precision Hunter Rifle Ammunition .30-378 Wby Mag 220 gr ELD-X 3025 fps 20/ct
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Free Shipping > $500 Limit 8
$5.15/rd $102.99 Cummings Family Firearms ★★★★★ (52)
Hornady Precision Hunter Rifle Ammunition .30-378 Wby Mag 220 gr ELD-X 3025 fps 20/ct
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Free Shipping > $500 Limit 8
$5.20/rd $103.99 Timber Hole Outdoors ★★★★★ (5)
Hornady Precision Hunter Rifle Ammunition .30-378 Wby Mag 220 gr ELD-X 3025 fps 20/ct
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Limit 8
$5.20/rd $103.99 Tungsten Creek Tactical
Hornady Precision Hunter Rifle Ammunition .30-378 Wby Mag 220 gr ELD-X 3025 fps 20/ct
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Free Shipping > $1,000 CC Fee 3%
$5.31/rd $106.16 Bunker Hill Ballistics ★★★★★ (9)
Weatherby H303180IL Select 30-378WthbyMag 180gr Hornady Interlock 20 Per Box/10 Case
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$5.35/rd $107.00 EK Tactical ★★★★★ (10)
Hornady Precision Hunter Rifle Ammunition .30-378 Wby Mag 220 gr ELD-X 3025 fps 20/ct
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Limit 8
$5.40/rd $107.95 Ecommerce Arms
Hornady Precision Hunter .30-378 Weatherby Magnum Ammo 220gr ELD-X 20 Rounds
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144
$5.40/rd $107.99 GunMag Warehouse ★★★★★ (71)
Hornady 82214 Precision Hunter 30-378 Wthby Mag 220 gr Extremely Low Drag eXpanding 20 Per Box/ 10 Case
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Limit 8
$5.40/rd $108.00 Loftus Firearms ★★★★★ (13)
Weatherby Select Plus .30-378 Weatherby Magnum 220gr ELD-X – 20 Rounds - 80 Rounds
Weatherby 220 Grains 80 Rounds Polymer New
UPC 747115437603 $5 Off - Use Code CALIBERKING
$5.43/rd $434.15 Gun Place ★★★★★ (206)
Weatherby H303220ELDX Select Plus 30-378WthbyMag 220gr Hornady ELD X 20 Per Box/10 Case
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603 Free Shipping > $900 CC Fee 3% Limit 7
$5.45/rd $108.91 Armed in Michigan ★★★★★ (714)
Weatherby H303220ELDX Select Plus 30-378 Wthby Mag 220 gr Hornady ELD X 20 Per Box/ 10 Cs
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603 CC Fee 3%
$5.45/rd $108.99 Cornerstone Arms ★★★★★ (373)
Weatherby H303220ELDX Select Plus 30-378WthbyMag 220gr Hornady ELD X 20 Per Box/10 Case
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603 Free Shipping > $1,000 CC Fee 3%
$5.45/rd $109.00 Bunker Hill Ballistics ★★★★★ (9)
Hornady Precision Hunter Rifle Ammunition .30-378 Wby Mag 220 gr ELD-X 3025 fps 20/ct
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Limit 8
$5.45/rd $109.00 Darmok Firearms ★★★★★ (37)
Weatherby B303180TTSX Select Plus 30-378 Wthby Mag 180 gr Barnes Tipped TSX Lead Free 20 Bx/ 10 Cs
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115425112
$5.46/rd $109.23 Gman Sporting Arms
Hornady 82214 Precision Hunter 30-378 Wthby Mag 220 gr Extremely Low Drag-eXpanding 20 Bx/ 10 Cs
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144
$5.47/rd $109.47 Gun Wise
Nosler 60133 Trophy Grade Long-Range 30-378WthbyMag 210gr Nosler Spitzer AccuBond Long Range 20 Per Box/10 Case
Nosler 210 Grains 20 Rounds Brass New
UPC 054041601337 Free Shipping > $1,000 CC Fee 3%
$5.49/rd $109.82 Bunker Hill Ballistics ★★★★★ (9)
Heritage Rough Rider 22 LR RR22B4PG HERITAGE MANUFACTURING - MAGNUM BONUS REWARD - MAIL IN REBATE
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580 Limit 3
$5.50/rd $109.93 Vizards Guns and Ammo ★★★★★ (1,070)
Hornady Precision Hunter .30-378 Weatherby Magnum 220 gr - 20/Box
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Free Shipping > $250 Limit 8 $15 Off Orders Over $75 Code CALIBERKING
$5.50/rd $109.99 Brickhouse Firearms
Nosler Long Range Rifle Ammunition 60133, 30-378 Weatherby Magnum, AccuBond, 210 GR, 3040 fps, 20 Rd/Bx
Nosler 210 Grains 20 Rounds Composite New
UPC 054041601337
$5.50/rd $109.99 Able Ammo ★★★★★ (397)
Weatherby Select Plus .30-378 Weatherby Magnum 220gr ELD-X – 20 Rounds
Weatherby 220 Grains 20 Rounds Polymer New
UPC 747115437603 $5 Off - Use Code CALIBERKING
$5.51/rd $110.19 Gun Place ★★★★★ (206)
Weatherby H303220ELDX Select Plus 30-378WthbyMag 220gr Hornady ELD X 20 Per Box/10 Case
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603 Shipping $20 Limit 7
$5.53/rd $110.51 Down Range Firearms ★★★★★ (8)
Hornady Precision Hunter .30-378 Wby Mag ELD-X 20/Box
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Shipping $13 Free Shipping > $350 Limit 8
$5.55/rd $110.99 Shadowsmith Ammo ★★★★★ (23)
WEATHERBY 30-378WBY 180GR HDY INTERLOCK
Weatherby 180 Grains 20 Rounds Brass New
UPC 747115437580
$5.55/rd $110.99 Coastal Firearms
Weatherby Select Plus 30-378 Wthby Mag 220gr ELD-X 20rd
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603 Limit 7
$5.56/rd $111.25 Georgia Guns & Ammo ★★★★★ (2)
Nosler 60133 Trophy Grade Long-Range 30-378WthbyMag 210gr Nosler Spitzer AccuBond Long Range 20 Per Box/10 Case
Nosler 210 Grains 20 Rounds Brass New
UPC 054041601337 Free Shipping > $900 CC Fee 3%
$5.60/rd $111.90 Armed in Michigan ★★★★★ (714)
WBY AMMO 30-378WBY 220GR HORNADY ELDX 20/10
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603 Free Shipping > $500
$5.60/rd $111.99 Cummings Family Firearms ★★★★★ (52)
Weatherby Select Plus .30-378 Weatherby Magnum Ammo 220gr Hornady ELD-X 20 Rounds
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603
$5.60/rd $111.99 GunMag Warehouse ★★★★★ (71)
Hornady 82214 Precision Hunter 30-378WthbyMag 220gr Extremely Low Drag eXpanding 20 Per Box/10 Case
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Limit 8
$5.60/rd $111.99 Allied Arms ★★★★★ (310)
Weatherby H303220ELDX Select Plus 30-378WthbyMag 220gr Hornady ELD X 20 Per Box/10 Case
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603 Shipping $14 Free Shipping > $500 CC Fee 3%
$5.61/rd $112.18 Minutemen Defense ★★★★★ (54)
WEATHERBY 30-378WBY 220GR HORNADY ELD-X
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603
$5.61/rd $112.18 Top Shelf Munitions ★★★★★ (2)
Weatherby H303220ELDX Select Plus 30-378WthbyMag 220gr Hornady ELD X 20 Per Box/10 Case
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603 Shipping $20 Limit 7
$5.62/rd $112.37 Ash Arms ★★★★★ (1)
WBY AMMO 30-378WBY 195GR HAMMER CUSTOM
Weatherby 195 Grains 20 Rounds Brass New
UPC 747115449422
$5.62/rd $112.40 Gun Wise
Weatherby H303220ELDX Select Plus 30-378 Wthby Mag 220 gr Hornady ELD-X 20 Bx/ 10 Cs
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603
$5.62/rd $112.40 Gun Wise
Hornady Precision Hunter Rifle Ammunition .30-378 Wby Mag 220 gr ELD-X 3025 fps 20/ct
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144
$5.64/rd $112.70 Bulletproof Outfitters ★★★★★ (133)
Hornady Precision Hunter Rifle Ammunition .30-378 Wby Mag 220 gr ELD-X 3025 fps 20/ct
Hornady 220 Grains 20 Rounds Brass New
UPC 090255822144 Limit 8
$5.65/rd $112.99 WTW Arms ★★★★★ (68)
Nosler 60133 Trophy Grade Long Range 30-378 Wthby Mag 210 gr AccuBond Long Range 20 Bx/ 10 Cs
Nosler 210 Grains 20 Rounds Brass New
UPC 054041601337
$5.66/rd $113.25 Gun Wise
Weatherby H303220ELDX Select Plus 30-378WthbyMag 220gr Hornady ELD X 20 Per Box/10 Case
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603
$5.66/rd $113.26 Vital Defense ★★★★★ (14)
Weatherby H303220ELDX Select Plus 30-378WthbyMag 220gr Hornady ELD X 20 Per Box/10 Case
Weatherby 220 Grains 20 Rounds Brass New
UPC 747115437603 Limit 7
$5.67/rd $113.37 Pickett's Mill Armory ★★★★★ (26)

.30-378 Weatherby Mag Ammo Price Graph

Today's .30-378 Weatherby Mag Ammo average is $4.84/rd, 14% below the 180-day average of $5.63/rd. Over the last 180 days, the average peaked at $5.81/rd on April 29, 2026 and bottomed at $4.84/rd on September 5, 2026.

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