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Winchester Copper Impact 300 WSM Ammunition 150 Grain Polymer Tip - X300SCLF
The Winchester Copper Impact .300 WSM 150-grain polymer tip is built for big game hunters who want fast, reliable terminal performance and flat, long-range ballistics. The bullet’s solid copper construction and large polymer tip are engineered to produce rapid, controlled expansion while retaining mass for deep penetration and powerful energy transfer. Tuned for extended reach, this load combines a high ballistic coefficient and boat-tail design to reduce drag and maintain a flat trajectory at distance. With a listed muzzle velocity of 3,200 fps and muzzle energy of 3,410 ft-lbs, the Copper Impact .300 Winchester Short Magnum delivers the downrange power hunters need on deer, elk, and similar-sized game. As part of Winchester’s lead-free ammo lineup, this cartridge provides a cleaner, environmentally responsible option that meets non-toxic ammunition requirements without sacrificing accuracy or terminal performance. It’s a dependable choice for hunters who want both premium precision and responsible performance from their .300 WSM ammo.
Features and Specifications:
- Accelerated Expansion: The polymer tip ensures rapid, controlled expansion upon impact, creating larger wound channels and faster knockdown.
- Copper Construction: Built with durable copper material to improve retained weight and provide dependable penetration on tough big game targets.
- Long-Range Accuracy: The boat-tail bullet and high BC design enhance aerodynamics, minimize drag, and promote a flatter trajectory for long-distance shots.
- Optimized Energy Transfer: Engineered to deliver maximum energy into the target while maintaining bullet integrity and consistent expansion.
- Lethal Terminal Performance: Delivers reliable results on deer, elk, and similar-sized game for ethical, one-shot performance.
- Packaging Options: Available in boxes of 20 rounds and cases of 200 rounds. Bulk case purchases include free shipping through Target Sports USA.
- Intended Application: Perfect for hunters seeking 300 WSM lead free ammo that balances expansion, retained weight, and long-range capability in a single, dependable load.
Deep Dive
Overview
This .300 WSM ammo is built for hunters who demand accuracy, dependable expansion, and powerful energy transfer across a variety of big game conditions. Designed to perform from close-range timber hunts to long shots across open country, it delivers a flat trajectory and consistent on-target performance. The Copper Impact bullet expands rapidly on impact through its polymer tip, transferring maximum energy while retaining enough weight for deep, reliable penetration. This balance of expansion and durability makes it ideal for deer, elk, black bear, and other large game. Whether you’re in dense brush or setting up on a distant ridgeline, this hunting ammo provides the precision, consistency, and confidence that Winchester’s big game cartridges are known for. With its combination of velocity, accuracy, and terminal strength, this .300 WSM hunting ammo stands out as a versatile, all-season choice for serious hunters.
History and Development
The Winchester Copper Impact line was developed as a next-generation hunting ammo solution for big game hunters who demand accuracy, deep penetration, and consistent expansion. Evolving from Winchester’s proven Extreme Point design, Copper Impact uses a solid copper expanding bullet paired with a large polymer tip to deliver rapid expansion, improved energy transfer, and reliable knockdown power. Its refined boat-tail profile enhances aerodynamics and long-range accuracy, giving hunters a flatter trajectory and greater confidence at extended distances. Created to perform across popular calibers like .300 WSM ammo, the Copper Impact series reflects Winchester’s ongoing commitment to producing advanced, lead-free ammunition that combines modern engineering with the trusted reliability hunters have come to expect.
Common Questions and FAQs
- What game is this cartridge best suited for?
The Winchester Copper Impact .300 WSM 150-grain load is optimized for big game such as deer, elk, and other large North American species, providing reliable penetration and expansion for ethical one-shot harvests.
- How does the polymer tip improve performance?
The polymer tip promotes controlled, rapid expansion upon impact, helping create larger wound channels and faster energy transfer for maximum stopping power.
- Is this ammunition lead free?
Yes, this round is part of Winchester’s lead-free ammo lineup. Its solid copper bullet eliminates lead exposure while maintaining the same accuracy, energy, and terminal performance as traditional bullets. It’s ideal for areas that require non-toxic ammunition or for hunters who prefer environmentally friendly options.
- How does this load perform at long range?
The boat-tail design and high ballistic coefficient (0.387) help minimize wind drift and drop, providing a flatter trajectory and consistent accuracy at extended distances.
- What packaging options are available?
Winchester Copper Impact .300 WSM is sold in boxes of 20 rounds and cases of 200 rounds, with all bulk case purchases including free shipping through Target Sports USA.
- What are the key ballistic figures for this cartridge?
The .300 WSM Copper Impact features a muzzle velocity of 3,200 fps, muzzle energy of 3,410 ft-lbs, and a ballistic coefficient (G1) of 0.387, providing excellent power and precision for big game hunting.
The 'Round Up'
Perfect Fit for:
Why It Stands Out:
The Winchester Copper Impact .300 WSM 150-grain polymer-tip load offers hunters the perfect balance of expansion, retained weight, and flat-shooting performance. With its copper bullet construction, aerodynamic design, and rapid-expanding polymer tip, it delivers accuracy, penetration, and energy transfer on every shot. Ideal for deer, elk, and other big-game hunting, this .300 WSM ammo is available in 20-round boxes or 200-round bulk cases with free shipping. This Winchester ammo provides consistent power, precision, and value for serious hunters.
| Field | Details |
| MPN | X300SCLF |
| UPC | 020892227910 |
| Manufacturer | Winchester |
| Platform | Rifle |
| Ammo Application | Hunting |
| Ammo Type | Polymer Tip |
| Caliber | 300 WSM |
| Grain Weight | 150 Grain |
| Quantity Per Package | Box of 20 / Case of 200 |
| Test Barrel Length | Not Provided |
| Muzzle Velocity | 3200 fps |
| Muzzle Energy | 3410 ft.lbs |
| Ballistic Coefficient (G1) | .387 |
| Case Type | Brass |
| Primer Type | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Lead Free | Yes |
| Staked Primer | Not Provided |
| Country of Origin | USA |
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