WEATHERBY - 6.5-300 WBY - 140 GR - INTERLOCK - 20 RDS/BOX
Weatherby
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Weatherby
WEATHERBY - 6.5-300 WBY - 140 GR - INTERLOCK - 20 RDS/BOX
The Weatherby 6.5-300 Wby Mag 140 Grain Interlock load carries on Roy Weatherby's legendary legacy of extreme velocity and flat-shooting performance, delivering devastating terminal energy at distances that would challenge lesser cartridges.
- Screaming 3,304 fps muzzle velocity for ultra-flat trajectories at long range
- 140 Grain Hornady InterLock bullet ensures deep, controlled expansion on impact
- InterLock ring mechanically locks core to jacket, preventing separation
- Optimized for Weatherby rifles to maximize accuracy and chamber performance
- 20 rounds per box — ideal for range sessions and hunting preparation
- Magnum-grade brass case and primer for consistent, reliable ignition
Who This Is For
This load is purpose-built for serious long-range hunters and Weatherby rifle owners who demand the absolute most from their cartridge. Whether you're pursuing elk, mule deer, or pronghorn across open western terrain, the 6.5-300 Wby Mag with a 140 gr InterLock delivers the velocity, energy retention, and terminal performance needed to make ethical shots at extended distances with confidence.
Specifications
| Brand | Weatherby |
|---|---|
| Cartridge | 6.5-300 Weatherby Magnum |
| Bullet Weight | 140 Grain |
| Bullet Type | Hornady InterLock |
| Muzzle Velocity | 3,304 fps |
| Muzzle Energy | ~3,391 ft-lbs |
| Rounds Per Box | 20 |
| Application | Big Game Hunting / Long Range |
| Country of Origin | USA |
Frequently Asked Questions
What firearms are compatible with this 6.5-300 Weatherby Magnum ammunition?
This ammunition is chambered specifically for the 6.5-300 Weatherby Magnum cartridge and is designed to be used in rifles chambered for that cartridge — most notably Weatherby's own Mark V series rifles. Always verify your rifle's chamber markings before using any ammunition, and consult your firearm's owner manual if you are unsure.
How does the Hornady InterLock bullet perform on big game animals?
The Hornady InterLock features a raised interior ring that mechanically locks the lead core to the gilding metal jacket, preventing core-jacket separation even at the high impact velocities produced by the 6.5-300 Wby Mag. This results in deep, controlled penetration and reliable expansion across a wide range of shot angles and distances — making it highly effective on deer, elk, and similar-sized big game.
Is this load suitable for long-range shooting beyond 500 yards?
Yes. The 6.5-300 Weatherby Magnum is one of the fastest commercial 6.5mm cartridges available, and the 140 gr bullet's high ballistic coefficient helps it retain velocity and energy exceptionally well at extended ranges. With a proper zero and verified drop data for your specific rifle and conditions, this load is well-suited for ethical hunting shots at 500 yards and beyond in the hands of a skilled shooter.
- Caliber:
- 6.5-300 WBY
- Bullet Weight:
- 140 GR
- Bullet Type:
- Interlock
- Type:
- Rifle Ammunition
- Box Quantity:
- 20
- Case Quantity:
- 200
- Lead Free:
- No
