Description
Winchester built the Supreme Long Range line specifically for hunters who need to make one shot count. This .300 WSM load pairs a 195-grain BC MAX bullet with match-grade components to deliver the consistency that extreme range demands.
The BC MAX bullet is Winchester's own in-house design, engineered with a thick-walled jacket, extended boattail profile, and oversized polymer tip. That combination works together to resist wind drift, maintain velocity downrange, and expand properly even when bullets have slowed from long-distance travel. At a 0.589 ballistic coefficient, this bullet resists atmospheric drag while keeping drop minimal in open country where wind becomes your biggest obstacle.
What makes the .300 WSM 195gr Supreme Long Range stand out
The cases themselves got special attention. Winchester revolutionized their case drawing process for this line, resulting in uniformity that rivals handloaded ammunition. The brass is nickel-plated to resist corrosion and improve feeding through magazines. You get 20 rounds per box loaded to 2900 fps muzzle velocity, generating 3641 ft-lbs of energy. That velocity is consistent shot-to-shot, which matters when you're trying to dial in for distant targets.
BC MAX design for terminal performance
The large-diameter polymer tip ensures the bullet initiates expansion even at reduced velocities from extended-range shots. The thick jacket handles close-range impacts without fragmenting while still providing penetration. This heavy-for-caliber 195-grain option sits right where you want it for the .300 WSM cartridge, giving you the sectional density needed for consistent performance on game from moderate distances out to where wind and drift become the real challenge. The combination of next-generation bullet assembly equipment and match-grade primers delivers the accuracy you'd expect from factory ammunition.
When to reach for this load
If you're hunting terrain where shots go beyond typical distances, or you want ammunition that shoots like precision rifle rounds, this fits the bill. The .300 WSM itself provides magnum-class velocity in a shorter, more maneuverable package, and this particular load maximizes that advantage with a bullet designed specifically for long-range terminal performance.
Key Specifications
- Caliber: .300 Winchester Short Magnum (.300 WSM)
- Bullet Weight: 195 Grains
- Bullet Type: BC MAX Polymer Tip
- Ballistic Coefficient: 0.589
- Muzzle Velocity: 2900 fps
- Muzzle Energy: 3641 ft-lbs
- Case Type: Brass (Nickel-Plated)
- Primer: Match-Grade Rifle Magnum
- Rounds per Box: 20
- Boxes per Case: 10
- Manufacturer: Winchester
- Model: Supreme Long Range
- Manufacturer Part Number: S300SBC
- UPC: 020892234550
What’s Included
- 20 rounds of .300 WSM ammunition
- BC MAX bullets with polymer tips
- Nickel-plated brass cases
- Match-grade primers
Frequently Asked Questions
What's the ballistic coefficient on the .300 WSM 195gr Supreme Long Range?
The BC MAX bullet in this load carries a ballistic coefficient of 0.589, which is on the higher end for the .300 WSM platform. That high BC helps the bullet maintain velocity and resist wind deflection over extended distances, making it effective for long-range hunting where wind becomes a real factor.
Is the .300 WSM 195gr Supreme Long Range suitable for long-range hunting?
Yes. This ammunition is purpose-built for extreme-range hunting applications. The 195-grain BC MAX bullet was designed to expand reliably at reduced velocities from long shots, while maintaining the penetration needed for clean kills. The precision-drawn cases and match-grade primers deliver the consistency required for shots beyond typical hunting distances.
How accurate is Winchester Supreme Long Range .300 WSM ammunition?
Winchester engineered this line with next-generation bullet assembly equipment and match-grade components for competition-level accuracy. The nickel-plated, uniformly-drawn cases provide shot-to-shot consistency that rivals carefully handloaded ammunition. Field testing shows groups averaging around half-minute-of-angle accuracy in precision rifles.
Can I use this ammunition in any .300 WSM rifle?
This ammunition is loaded to standard pressures and will function in any rifle properly chambered for .300 WSM. However, for the most consistent accuracy, fire it through a rifle with a quality trigger and solid shooting platform. Actual ballistics will vary based on your specific barrel length and environmental conditions.




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