Description
Remington engineered this round from the ground up for hunters who shoot long. The 172 grain Speer Impact bullet is chemically bonded to prevent jacket separation, keeping all that energy focused into maximum terminal performance. The slipstream polymer tip isn't just a cosmetic feature either. It's designed to initiate expansion at velocities about 200 fps lower than typical polymer tip designs, which means it works whether you're connecting at 100 yards or stretching it out significantly further. This matters when conditions aren't ideal or when your shot isn't quite picture perfect.
Ballistics Built for Distance
At 2635 fps muzzle velocity, this loading maintains a respectably flat trajectory downrange. The boat tail design combined with a high ballistic coefficient means wind drift stays manageable even when you're pushing distance. The center of gravity is positioned toward the rear, which helps the bullet track true through the air. You're getting the kind of precision you need to make confident shots on elk, mule deer, or other big game when conditions demand your best performance.
Built to Perform in Varied Conditions
Remington uses their highest quality primers and propellants throughout this ammunition, selected for consistency across different temperatures and firing conditions. Whether you're hunting early season or late in cold weather, performance stays predictable. The brass cases are non-corrosive and boxer primed, which means you can reload if you want to stretch your investment further.
Everything in One Box
You get 20 rounds per box. The 172 grain weight is the sweet spot for .308 Win hunting at extended ranges, offering the velocity you need for a flat trajectory while maintaining the bullet weight necessary for controlled expansion on game.
Key Specifications
- Caliber: .308 Winchester / 7.62 NATO
- Bullet Weight: 172 Grains
- Bullet Type: Speer Impact Polymer Tip Bonded Boat Tail
- Muzzle Velocity: 2635 fps
- Muzzle Energy: 2651 ft-lbs
- Ballistic Coefficient: 0.522
- Case Material: Brass
- Primer: Boxer (reloadable)
- Rounds per Box: 20
- Manufacturer Part Number: R21345
- UPC Code: 047700485706
- Application: Big Game Hunting (Medium to Large Game)
What’s Included
- 20 rounds of .308 Win ammunition
- Brass cartridge cases
- Speer Impact bullets
Frequently Asked Questions
What type of game is the 172 grain Speer Impact designed for?
This loading works well on medium to large game including whitetail and mule deer, feral hogs, bear, and elk. The 172 grain weight at 2635 fps delivers solid penetration at moderate range while maintaining controlled expansion at distance. The bonded construction ensures the bullet stays together on impact regardless of velocity, which is critical for ethical, clean kills on larger animals.
How does the Slipstream polymer tip perform compared to standard polymer tip rounds?
Speer engineered this polymer tip to initiate expansion at velocities roughly 200 fps lower than typical designs. That means the bullet will expand more reliably whether you're at close range or pushing into extended distance shooting. The hollow core and aerodynamic design work together for consistent expansion across a wider velocity window, which translates to better terminal performance in real hunting situations.
Are these cases reloadable?
Yes. The brass cases are boxer primed and non-corrosive, making them suitable for reloading. The cases are drawn from quality Remington brass and hold consistent dimensions, which helps you achieve repeatable performance if you load your own ammunition.
What is the effective range for long-range hunting with this ammunition?
With a ballistic coefficient of 0.522 and 2635 fps muzzle velocity, this load maintains reasonable trajectory out to extended distances. Real-world effective range depends on your rifle's accuracy, your skill, and what you consider acceptable wind drift. Most hunters find this ammunition suitable for shots beyond typical hunting distances, though every situation demands the shooter assess conditions and make the right call for an ethical shot.





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