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HSM has matched every component of this 300 RUM loading specifically for the Sierra Game King bullet to deliver consistent accuracy and performance that rivals many handloaded rounds. The result is ammunition that comes out of the box ready to hunt without requiring a workup.
The 150-grain Sierra Game King bullet is a proven performer that has earned its reputation through decades of reliable performance in the field. The spitzer boat-tail design combines a streamlined profile for superior ballistics with the classic cup-and-core construction that balances expansion and penetration. At the 3390 fps velocity this load produces, the Game King opens reliably on game while retaining the weight needed for clean penetration. The boat-tail configuration helps reduce bullet drop at distance, which matters when you're working with the 300 RUM's impressive but unforgiving trajectory.
The 300 RUM is one of the flattest-shooting 30-caliber magnums available, and this HSM load takes full advantage of it. Delivering 3390 fps muzzle velocity and 3829 foot-pounds of energy, the ammunition gives you the velocity the cartridge was designed for. Brass cases are reloadable, making this a cost-conscious choice for those who plan to reload after their hunt. Each round is consistently assembled to maximize accuracy and reliability through your rifle.
Hunters appreciate the 150-grain Game King for shots out to typical hunting ranges. It shoots flat, groups tight in rifles that like boat-tail bullets, and has taken everything from pronghorn to elk when placed correctly. The lighter bullet weight compared to heavier options means less recoil while still delivering the energy needed for decisive hits. Twenty rounds per box gives you plenty to hunt with and room to practice your load.
This ammunition delivers 3390 feet per second muzzle velocity and 3829 foot-pounds of muzzle energy from a 26-inch barrel. These figures put the load in the middle of typical factory 300 RUM performance. The velocity is important because the Sierra Game King bullet needs adequate speed to open properly on game without fragmenting.
The 150-grain Game King is effective for standard hunting ranges, typically out to 300 yards or beyond depending on your rifle and shooting ability. The 300 RUM's flat trajectory and this load's velocity make it capable for longer work, though some hunters prefer heavier bullets like 165 or 180 grains for extreme range hunting where the extra weight helps maintain velocity and energy at distance.
Yes, the brass cases are reloadable. HSM uses quality brass that can be handloaded multiple times, making this an economical choice for hunters who reload. Always follow published reloading data and safe handloading practices.
The 150-grain Game King from this load works well on pronghorn, mule deer, whitetail, and similar-sized game. Many hunters successfully use this weight on elk at closer ranges or with well-placed shots. The 300 RUM's power means you have margin for error that smaller cartridges don't provide, but shot placement always matters.
| UPC | 810742023140 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 300RUM11N |
| Caliber/Gauge | .300 RUM |
| Case Material | Brass |
| Grains | 150 gr |
| Length | 6.6500 |
| Units per Box | 20 |
| Cost per Round | 4.10 |
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