20 Rounds of .300 Win Mag Ammo by Winchester Copper Impact - 180gr Copper Extreme Point

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Ammo Overview

Ammo Quantity - 20 rounds per box
Ammo Manufacturer - Winchester
Projectiles - 180 grain Copper Extreme Point
Ammo Casings - Boxer-primed brass
Muzzle Velocity - 2,950 fps
Muzzle Energy - 3,478 ft lbs


If you’re taking your 300 Win Mag rifle on a thrilling hunt for deer or elk, then you’ll have to look far and wide to find better ammo than what Winchester has in store for you right here. This cartridge features The Big W’s 180 grain Copper Impact, which merges pinpoint accuracy with overwhelming terminal ballistics – and it’s also entirely nontoxic!

The Copper Impact doesn’t just achieve a consistently flat trajectory because it’s incapable of dirtying a rifle’s bore with lead residue. Its sleek polymer tip comprises nearly half of its frontal surface area, and its weight distribution is essentially perfect. The Copper Impact overcomes air resistance so effectively that it retains 1,500 ft lbs of kinetic energy (the minimum typically advised for elk) until it reaches about 570 yards. At that range it’s still moving at a rate of 1,937 fps!

The Copper Impact’s abnormally large polymer tip quite naturally sports an abnormally wide base. It triggers rapid terminal expansion beginning right at the instant of impact, thus maximizing deadly energy transfer to the quarry. The monolithic Copper Impact is also much tougher than a traditional jacketed projectile – hence its ability to retain its weight, conserve its momentum, and pierce a clean path to a larger quarry’s vitals.

This American-made ammo’s flat-shooting lead-free bullets are socketed in premium reloadable brass cases and backed by clean-igniting primers and propellant charges.

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