30-378 Weatherby Magnum

(8 customer reviews)

$139.00$154.00

The 30-378 is known as the fastest production .30 Caliber available on the market. It is a truly potent magnum cartridge, with its greatest strength found at ranges exceeding 1,000 yards

CARTRIDGE SPECS

Bullet Diameter: .308 (7.8mm)
Common Reference: 30 Caliber
Max Case Length: 2.825”
Developed: 1959
Production Start: 1996

BALLISTIC INFO

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SKU: 30378 Category: Tag:

Description

Ammunition Shipment Restrictions

Must be 18 or older to purchase rifle ammunition. Shipping not available to P.O. Boxes, International Addresses, AK, CA, HI, MA, CT, IL, NJ, NY nor DC residents. Residents of DE, KS, OH, and WA may have additional restrictions. All ammunition is shipped domestic ground and an adult signature is required. We do not accept returns on ammunition.

Known as the fastest production.30 Caliber available on the market

The 30-378 was designed & tested in late 1959 – early 1960 by Weatherby at the request of the United States Army for the Redstone Arsenal in Huntsville, Alabama. Loads were to be developed to exceed 4000 FPS & as close to 5000FPS*.

When it was commercially introduced in 1996, it was billed as the world’s fastest 30 caliber cartridge and will push a 30 caliber bullet 3,500 feet per second.

LEARN MORE

Episode 52 - The 30-378 WBY MAG
On Our Mark Podcast

Episode 52 - The 30-378 WBY MAG

The Weatherby Team sits down to talk about one of our most impressive cartridges. The one, the only, 30-378 WBY Mag. Listen as we discuss the origins of the 30-378, when this cartridge was released, uses for this amazing caliber and hear some personal experiences with the 30-378.

LISTEN NOW

Bullet Information

Barnes® TTSX®

A 100-percent copper bullet with a polymer tip to boost ballistic coefficient to improve long-range ballistics and provide fast expansion. The four razor sharp cutting petals double the bullet diameter that wreak extensive internal damage and produce massive wound channels. The TTSX is extremely accurate and has great expansion.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 180 gr.
  • B/C (G1) – .484
  • Max Case Length – 2.913“

Barnes® TTSX®

A 100-percent copper bullet with a polymer tip to boost ballistic coefficient to improve long-range ballistics and provide fast expansion. The four razor sharp cutting petals double the bullet diameter that wreak extensive internal damage and produce massive wound channels. The TTSX is extremely accurate and has great expansion.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 180 gr.
  • B/C (G1) – .484
  • Max Case Length – 2.913“

VELOCITY DATA (FPS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
165 gr.349432533026281026042407
180 gr.332531132912272025362360

ENERGY DATA (FT LBS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
165 gr.447238773354289224842123
180 gr.441938743390295825712226

BULLET TRAJECTORY (INCHES)

Bullet Weight100 yds200 yds300 yds400 yds500 yds
165 gr.2.5“3.1“0.0“-7.5“-20.2“
180 gr.2.8“3.4“0.0“-8.1“-21.7“

Hammer Custom

Hammer Bullets™ are turned on a CNC lathe and use a unique solid copper blend that is designed for maximum terminal performance. Each bullet is weighed and micrometer measured as it is produced. The result is an incredibly consistent product with unparalleled quality control. The hollow point design, initiates expansion upon impact, shedding petals immediately, with the remainder of the bullet staying intact with a blunt front for optimal wound channel. All Hammer Custom Bullets are designed to optimize Weatherby’s flat shooting cartridges.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 195 gr.
  • B/C (G1) – .550
  • Max Case Length – 2.913“

LEARN MORE

Episode 41 - Hammer Bullets
On Our Mark Podcast

Episode 41 - Hammer Bullets

Take a deeper dive into Hammer Bullets with our On Our Mark podcast. We sit down with Bryan and Steve of Hammer Bullets to talk about the performance and what makes Hammer bullets different from similar projectiles.

LISTEN NOW

Hammer Custom

Hammer Bullets™ are turned on a CNC lathe and use a unique solid copper blend that is designed for maximum terminal performance. Each bullet is weighed and micrometer measured as it is produced. The result is an incredibly consistent product with unparalleled quality control. The hollow point design, initiates expansion upon impact, shedding petals immediately, with the remainder of the bullet staying intact with a blunt front for optimal wound channel. All Hammer Custom Bullets are designed to optimize Weatherby’s flat shooting cartridges.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 195 gr.
  • B/C (G1) – .550
  • Max Case Length – 2.913“

LEARN MORE

Episode 41 - Hammer Bullets
On Our Mark Podcast

Episode 41 - Hammer Bullets

Take a deeper dive into Hammer Bullets with our On Our Mark podcast. We sit down with Bryan and Steve of Hammer Bullets to talk about the performance and what makes Hammer bullets different from similar projectiles.

LISTEN NOW

VELOCITY DATA (FPS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
195 gr.322530432868270025392383

ENERGY DATA (FT LBS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
195 gr.450340083562315727912458

BULLET TRAJECTORY (INCHES)

Bullet Weight100 yds200 yds300 yds400 yds500 yds
195 gr.2.9“3.6“0.0“-8.3“-22.1“

Hornady® ELD-X®

The ELD-X® is a match accurate hunting bullet designed for long range terminal performance. The Heat Shield® tip is immune to the effects of aerodynamic heating and retains its shape to maintain the highest-in-class BC over its entire trajectory. This Heat Shield® tip helps initiate a consistent, controlled bullet expansion even at lower velocities. A streamlined secant ogive with optimum boattail design + highly concentric AMP® bullet jackets + Heat Shield® tip combine for radically superior aerodynamic efficiency.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 220 gr.
  • B/C (G1) – .650
  • Max Case Length – 2.913“

Hornady® ELD-X®

The ELD-X® is a match accurate hunting bullet designed for long range terminal performance. The Heat Shield® tip is immune to the effects of aerodynamic heating and retains its shape to maintain the highest-in-class BC over its entire trajectory. This Heat Shield® tip helps initiate a consistent, controlled bullet expansion even at lower velocities. A streamlined secant ogive with optimum boattail design + highly concentric AMP® bullet jackets + Heat Shield® tip combine for radically superior aerodynamic efficiency.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 220 gr.
  • B/C (G1) – .650
  • Max Case Length – 2.913“

VELOCITY DATA (FPS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
220 gr.305029012758261924852354

ENERGY DATA (FT LBS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
220 gr.454441123716335130152706

BULLET TRAJECTORY (INCHES)

Bullet Weight100 yds200 yds300 yds400 yds500 yds
220 gr.3.3“3.9“0.0“-9“-23.6“

Hornady® InterLock®

The InterLock® features an exposed lead tip for controlled expansion and hard-hitting terminal performance. A secant ogive design — one of the most ballistically efficient profiles ever developed. The raised ring inside the jacket is embedded in the bullet, combined with the one-piece core, keeps the core and jacket locked together during expansion to retain mass and energy.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 180 gr.
  • B/C (G1) – .425
  • Max Case Length – 2.913“

Hornady® InterLock®

The InterLock® features an exposed lead tip for controlled expansion and hard-hitting terminal performance. A secant ogive design — one of the most ballistically efficient profiles ever developed. The raised ring inside the jacket is embedded in the bullet, combined with the one-piece core, keeps the core and jacket locked together during expansion to retain mass and energy.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 180 gr.
  • B/C (G1) – .425
  • Max Case Length – 2.913“

VELOCITY DATA (FPS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
180 gr.335030182881266424582261

ENERGY DATA (FT LBS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
180 gr.448538623316283724142042

BULLET TRAJECTORY (INCHES)

Bullet Weight100 yds200 yds300 yds400 yds500 yds
180 gr.2.8“3.5“0.0“-8.4“-22.6“

Nosler® Ballistic Tip®

The Ballistic Tip bullets are precision made and individually inspected for quality. The heavy jacket base prevents bullet deformation during firing and holds together at extreme velocities making them a perfect companion for Weatherby loads. A polycarbonate tip that resists deformation in the magazine and initiates expansion upon impact. The bullet’s mid-section keeps it together at any velocity until impact, and a uniform, pure lead core eliminates possible imbalance and erratic flight typically caused by air pockets.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 180 gr.
  • B/C (G1) – .507
  • Max Case Length – 2.913“

Nosler® Ballistic Tip®

The Ballistic Tip bullets are precision made and individually inspected for quality. The heavy jacket base prevents bullet deformation during firing and holds together at extreme velocities making them a perfect companion for Weatherby loads. A polycarbonate tip that resists deformation in the magazine and initiates expansion upon impact. The bullet’s mid-section keeps it together at any velocity until impact, and a uniform, pure lead core eliminates possible imbalance and erratic flight typically caused by air pockets.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 180 gr.
  • B/C (G1) – .507
  • Max Case Length – 2.913“

VELOCITY DATA (FPS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
180 gr.342032133015282626452471

ENERGY DATA (FT LBS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
180 gr.467641263634319327972441

BULLET TRAJECTORY (INCHES)

Bullet Weight100 yds200 yds300 yds400 yds500 yds
180 gr.2.5“3.1“0.0“-7.5“-20.0“

Nosler® Partition

Nosler Partition Bullets feature a fully tapered jacket that ruptures instantly at the thin jacket mouth, yet the gradual thickening along the bullet’s axis controls expansion and curls the jacket uniformly outward at high or low velocities. The dual-core design assures rapid expansion of the foremost core while Nosler’s integral partition supports the expanded mushroom allowing the enclosed rear core to remain intact retaining more than two-thirds the original bullet weight for deep penetration. The special crimp locks in the rear core section, adding strength to resist deformation under the pressure of heavy magnums.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 200 gr.
  • B/C (G1) – .481
  • Max Case Length – 2.913“

Nosler® Partition

Nosler Partition Bullets feature a fully tapered jacket that ruptures instantly at the thin jacket mouth, yet the gradual thickening along the bullet’s axis controls expansion and curls the jacket uniformly outward at high or low velocities. The dual-core design assures rapid expansion of the foremost core while Nosler’s integral partition supports the expanded mushroom allowing the enclosed rear core to remain intact retaining more than two-thirds the original bullet weight for deep penetration. The special crimp locks in the rear core section, adding strength to resist deformation under the pressure of heavy magnums.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 200 gr.
  • B/C (G1) – .481
  • Max Case Length – 2.913“

VELOCITY DATA (FPS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
200 gr.316029552759257223922220

ENERGY DATA (FT LBS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
200 gr.443438773381293825412188

BULLET TRAJECTORY (INCHES)

Bullet Weight100 yds200 yds300 yds400 yds500 yds
200 gr.3.2“3.9“0.0“-9.1“-24.3“

Swift Scirocco®

A bonded bullet with Swift’s signature black tips designed for hunting and long-range efficiency. Pure copper jacket is progressively tapered to control expansion development throughout a wide range of velocities. Jacket and core are joined together using proven Swift bonding technology. Long driving band for improved rotational stability. Its sleek design and advanced secant ogive nose profile allows for high ballistic coefficient that produce flat trajectories for downrange hunting, making it a perfect match for Weatherby Cartridges.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 180 gr.
  • B/C (G1) – .520
  • Max Case Length – 2.913“

Swift Scirocco®

A bonded bullet with Swift’s signature black tips designed for hunting and long-range efficiency. Pure copper jacket is progressively tapered to control expansion development throughout a wide range of velocities. Jacket and core are joined together using proven Swift bonding technology. Long driving band for improved rotational stability. Its sleek design and advanced secant ogive nose profile allows for high ballistic coefficient that produce flat trajectories for downrange hunting, making it a perfect match for Weatherby Cartridges.

  • Common Reference – 30 Caliber
  • Bullet Diameter – .308" (7.8mm)
  • Bullet Weight – 180 gr.
  • B/C (G1) – .520
  • Max Case Length – 2.913“

VELOCITY DATA (FPS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
180 gr.327530802894271625452380

ENERGY DATA (FT LBS)

Bullet WeightMuzzle100 yds200 yds300 yds400 yds500 yds
180 gr.428737913348294825882263

BULLET TRAJECTORY (INCHES)

Bullet Weight100 yds200 yds300 yds400 yds500 yds
180 gr.2.8“3.5“0.0“-8.2“-21.8“
Barnes® TTSX™Hornady® InterLock®Nosler® Ballistic Tip®Nosler® Accubond®Barnes® TTSX™Swift™ Scirocco®Hammer BulletNosler® Partition®Hornady® ELD-X®
Bullet Weight (grains)165180180180180180195200220
B/C (G1).442.425.507.507.484.520.550.481.650
Velocity (Ft/Sec)
Muzzle349433503420330033253275322531603050
@100 yds325330183213309931133080304329552901
@200 yds302628813015290829122894286827592758
@300 yds281026642826272427202716270025722619
@400 yds260424582645254825362545253923922485
@500 yds240722612471237923602380238322202354
Energy (FT LB)
Muzzle447244854676435244194287450344344544
@100 yds387738624126383838743791400838774112
@200 yds335433163634337933903348356233813716
@300 yds289228373193296629582948315729383351
@400 yds248424142797259525712588279125413015
@500 yds212320422441226222262263245821882706
Trajectory (Inches)
@100 yds2.5“2.8“2.5“2.8“2.8“2.8“2.9“3.2“3.3“
@200 yds3.1“3.5“3.1“3.5“3.4“3.5“3.6“3.9“3.9“
@300 yds0.0“0.0“0.0“0.0“0.0“0.0“0.0“0.0“0.0“
@400 yds-7.5“-8.4“-7.5“-8.1“-8.1“-8.2“-8.3“-9.1“-9“
@500 yds-20.2“-22.6“-20.0“-21.6“-21.7“-21.8“-22.1“-24.3“-23.6“

30-378 WBY MAG

When it was commercially introduced in 1996, it was billed as the world’s fastest 30 caliber cartridge and will push a 30 caliber bullet 3,500 feet per second.

TRAJECTORY

VELOCITY/ENERGY

30-378 WBY MAG

When it was commercially introduced in 1996, it was billed as the world’s fastest 30 caliber cartridge and will push a 30 caliber bullet 3,500 feet per second.

TRAJECTORY

VELOCITY/ENERGY

Shop Weatherby Unprimed Brass

8 reviews for 30-378 Weatherby Magnum

  1. Frank R Palmisano (verified owner)

    I own a 30-378 Weatherby-I love the
    rifle-I was lucky enough to get a Desert Bighorn Sheep Tag-I shot the sheep and he went about 10ft and dropped-I have only one problem in owning the rifle-I can’t seem to get the 180 grain Accubond cartridge-Weatherby advertisers the cartridge but it is never in stock-

  2. Roger Richardson

    Purchased my first MARK V IN 1976 in .300 Wby Mag, bought three more in different calibers before buying a .30-.378 which was the first one I saw at the Powder Horn in Bozeman, MT in 1996 while on a hunting trip. Put a Leupold Mark 4 on it and have never been disappointed! I use my .300 more than any other caliber, but nothing compares to the .30-.378 on hunts that I expect longer shots. In my many years of hunting, I’ve never shot at an animal that that didn’t come home with me. Most fell nearly where shot, none took over a few steps!
    There are so many good calibers out there now to choose from, some of which I’ve tried. But none that please me as much as either my .300 or .30-378
    Wby Mags. I’ve truly been a Weatherby man for life, and it’s been a very good life! Thank you

  3. Steve Frisby

    Amazing long range rifle. I have taken whitetail, mule deer, elk and moose with 180 gr Accubond from 15yds ( moose) to 1013 yds elk. My go to rifle is my Weatherby 30-378.

  4. BRUCE WISKUS (verified owner)

    I have been shooting the 30-378 since 2005 excellent flat shooting hard hitting round. Have taken elk,mule deer and whitetail out to 600 yards no problem. Grandchildren are using it now and arguing about who is going to get it when I am gone.

  5. Coonhhuter

    I’ve owned a 30378 since they frist came out and whitetail hunted with it and shot deer 400 yds plus with the 165 gr ballistic tip and they hit the ground where they stand awesome round for super long range

  6. F Vic

    Shot 4 Elk 1 Moose all over 350 yards , and one large brown bear all one shot kills. 30-378 is flat shooting hard hitting ….

  7. Outbackjack

    Have a MK V in 30-378 set up by Long Range Hunters in WY with a Huskama scope using the 165gr TXS.for my South Dakota 1000 yard rifle. Less than 1′ groups at 200 yards and ground pounds everything. I’ve used it to take whitetail out to a half mile with zero misses and dropped in their tracks. Luckily I purchased five boxes of ammo with gun (when ammo was $15 cheaper) and still have 3+ boxes left after LRH used 14 rounds to set up rifle, 6 on deer and the rest for practice.

  8. shady04

    I have been trying to purchase Weatherby 30-378 130 grain TTSX ammo for months. Why is it so difficult to find? If it’s not available at Weatherby.com, there’s a problem.

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