Federal Gold Medal .300 Winchester Magnum ammunition (part no. GM300WM) loads a 190-grain Sierra MatchKing Boat Tail Hollow Point for competitive and long-range shooters chasing tighter groups. Federal has been a top American ammunition maker for decades, and this loading reflects the same attention to consistency found across its premium lines. The consistent, concentric jacket and boat tail base are built for the accuracy competitive shooters demand, not for hunting expansion. Brass-cased and 20 to a box, it is built to feed reliably through bolt guns and semi-autos chambered for the cartridge. In our rifle ammunition lineup, this .300 Winchester Magnum loading is a confirmed, dependable choice worth adding to the cart.
Key Specifications
- The chambering is .300 Winchester Magnum, a chambering with wide factory rifle support.
- The bullet weighs 190 grains, setting the balance of velocity and downrange energy this load is tuned for.
- The bullet is a Sierra MatchKing Boat Tail Hollow Point, the projectile Federal chose to load behind .300 Winchester Magnum.
- The consistent, concentric jacket and boat tail base are built for the accuracy competitive shooters demand, not for hunting expansion.
- Cases are Brass, holding pressure reliably and staying reloadable for handloaders.
- Each box holds 20 rounds, enough to confirm zero and still have rounds on hand.
- A case ships 10 boxes (200 rounds total), ideal for stocking up or buying once for the season.
- At about $3.22 per round, the price reflects the bullet construction loaded into this round.
- The box ships at about 1.6188 lb, handy for estimating freight on a bulk order.
Frequently Asked Questions
Is the Sierra MatchKing Boat Tail Hollow Point built for hunting or competition? It is a match-grade design built for target accuracy at distance, not for hunting where controlled expansion matters most.
How many rounds come in a case? A case ships 10 boxes of 20, 200 rounds total.
How is the Sierra MatchKing Boat Tail Hollow Point different from a standard cup-and-core bullet? The consistent, concentric jacket and boat tail base are built for the accuracy competitive shooters demand, not for hunting expansion.
Buy the Federal Gold Medal .300 Winchester Magnum 190 gr Sierra MatchKing Boat Tail Hollow Point
Confirmed zero and dependable ammunition matter more than anything else when it counts, and this Sierra MatchKing Boat Tail Hollow Point loading is built to be the round you don’t have to think twice about. Stock up before the next range day or hunt. Order from our Lubbock, Texas gun shop and it ships fast to your door.
| Bullet Weight (Grains) | 190 |
|---|---|
| Caliber/Gauge | .300 Winchester Magnum |
| Case Material | Brass |
| Cost per Round | 3.30 |
| Grains | 190 gr |
| Length | 6.7500 |
| Manufacturer | Federal Ammunition |
| Manufacturer Part Number | GM300WM |
| Model | Gold Medal |
| Product Type | Boat Tail Hollow Point |
| Shipping Weight | 1.6188 |
| Units per Box | 20 |
| UPC | 029465091736 |







