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The 25 Wby RPM represents a modern approach to quarter-bore hunting, and this factory ammunition pairs the cartridge with one of today's most respected long-range projectiles. At 3,150 feet per second from a 24-inch barrel, the 117-grain Barnes LRX delivers the speed and trajectory Weatherby cartridges are known for without excessive recoil that heavier magnums impose.
Barnes LRX Bullet Design and Performance
The LRX bullet design evolved from decades of copper bullet refinement and was specifically optimized for the 25 RPM's fast 1:7.5-inch twist rate. Built as a monolithic copper projectile with a polymer tip and boat-tail base, the LRX combines excellent weight retention with expansion characteristics engineered for extended-range work. The polymer tip initiates rapid expansion on impact while the internal nose cavity expands the bullet to approximately double its original diameter, creating four sharp cutting petals. Even at lower impact velocities from longer distances, the LRX maintains reliable expansion without the risk of core separation.
Why the 25 Wby RPM Stands Out
Weatherby engineered the 25 RPM to fill a gap between traditional quarter-bore cartridges and full-magnum options. The rebated rim allows it to function in Weatherby's six-lug Mark V action and newer Model 307 platform, keeping rifles lighter and easier to carry than rifles built around 9-lug magnum actions. Despite that compact action, the 25 RPM delivers more case capacity than competing cartridges like the 25 Creedmoor, providing roughly 200 feet-per-second velocity advantage with identical bullet weights. The cartridge handles a range of projectiles from lightweight varmint bullets up to heavy 133-grain options, making it genuinely versatile for various game from coyotes to elk.
This ammunition represents the ideal pairing of a modern cartridge design with a proven long-range bullet, creating a practical hunting round for backcountry situations where flat trajectory and energy retention matter.
The LRX was specifically designed with the fast 1:7.5-inch twist of the 25 RPM in mind. Its long, sleek profile and high ballistic coefficient allow it to retain velocity and energy across extended distances, while the polymer tip and engineering ensure reliable expansion even at lower impact speeds from long-range shots. The monolithic copper construction provides excellent penetration and weight retention.
No. This ammunition is specifically chambered for the 25 Wby RPM cartridge and will only function in rifles marked for that caliber. It will not work in older quarter-bore cartridges like the 25-06 Remington, 257 Roberts, or 257 Weatherby Magnum. Always verify your rifle's chamber before purchasing.
The 25 RPM delivers approximately 200 feet-per-second more velocity than the 25 Creedmoor with comparable bullet weights due to significantly greater case capacity. Compared to the 25-06, the RPM shoots faster and flatter at distance with heavy-for-caliber bullets thanks to its optimized fast-twist barrel, though it produces less recoil than full magnum options like the 257 Weatherby Magnum.
Yes. The combination of the 25 RPM cartridge and 117-grain Barnes LRX bullet is designed specifically for extended-range field use. The high ballistic coefficient and 3,150 fps velocity deliver flat trajectory and retain energy well beyond typical hunting distances. Many modern quarter-bore hunters use this same bullet weight and type for shots well beyond 300 yards.
| UPC | 747115463428 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | B25RPM117LRX |
| Shipping Weight | 1.267 |
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