HSM Tipping Point .300 Winchester Magnum — 165 gr Sierra GameChanger (300WINMAG40N / UPC 810742023089) — Long SEO-Optimized Product Description

Elevate your hunt with match-grade ballistics and devastating terminal performance. The HSM Tipping Point .300 Win Mag 165 gr Sierra GameChanger is a purpose-built hunting cartridge that blends precision manufacturing and premium components to deliver deadly accuracy, consistent velocities, and the controlled expansion needed to ethically harvest medium-to-large game at extended ranges. Packaged 20 rounds per box and 20 boxes per case (20/box · 20/case), this load is ideal for serious hunters, precision shooters, and outfitters who demand uniform performance from each and every round. hsmammunition.com+1

Why Choose HSM Tipping Point (.300 Win Mag, 165 gr)

HSM’s Tipping Point line is engineered around one core idea: match-grade accuracy paired with hunting-oriented terminal effects. Rather than compromise on either precision or expansion, HSM combines premium brass cases, carefully selected primers and powders, and the Sierra GameChanger bullet to produce a cartridge that groups like a match round and performs like a purpose-built hunting load. That marriage of consistency and terminal performance gives hunters confidence at extended engagement distances. hsmammunition.com+1

Bullet Technology — Sierra GameChanger (165 gr)

At the heart of this round is the 165-grain Sierra GameChanger — a modern, polymer-tipped hunting bullet derived from Sierra’s MatchKing heritage and optimized for controlled expansion, weight retention, and high ballistic coefficient (BC). The GameChanger profile helps the bullet maintain sectional density and penetrate deeply while the polymer tip promotes rapid, reliable expansion on impact. The result: high on-target energy transfer, clean ethical kills, and superior downrange performance compared to older bullet designs. MidwayUSA+1

Precision Components — Factory Workmanship You Can Trust

HSM loads the Tipping Point line with premium, reloadable brass cases and high-quality primers and powders chosen to produce consistent muzzle velocities and minimal standard deviation (SD). The careful component selection and factory quality control translate to repeatable performance across boxes — an essential trait for hunters dialing long-range shots or precision shooters chasing sub-MOA groups. Each cartridge is non-corrosive and boxer-primed for easy reloading. MidwayUSA+1

Ballistics & Practical Performance

This 165-grain .300 Win Mag load is tuned to provide a flat trajectory, strong retained energy, and effective terminal performance from typical hunting ranges out to extended distances. While your rifle, barrel length, and atmospheric conditions will affect exact velocity and energy figures, independent retailer and range tests report consistent accuracy and hunting-class performance for this cartridge across bolt-action platforms. Use it for elk, moose, bear, and other large North American game where deep penetration and expansion are required. Black Basin Outdoors+1

Packaging & Availability

Each retail box contains 20 rounds; cases are commonly sold with 20 boxes per case (400 rounds total). SKU/part numbers and UPCs vary by market — this product is commonly listed under part numbers like 300WINMAG40N and associated UPCs as shown on retailer pages. Because availability can fluctuate, check authorized dealers and major online retailers for current inventory and pricing. cornerstonearms.com+1

Who This Ammo Is For

• Big-game hunters who need a high-BC, match-accurate bullet that still expands reliably at hunting ranges.

• Long-range hunters who value consistent ballistics and minimal vertical dispersion.

• Guides and outfitters who require dependable, retail-packaged ammunition with reproducible performance.

• Reloaders who appreciate factory brass that can be reloaded for practice or custom loads. Ammunition Depot+1

Safety, Use & Handloading Notes

Always follow firearm safety rules and local hunting regulations. Confirm that the .300 Win Mag cartridge and 165-grain GameChanger bullet are appropriate for the species you intend to harvest and for the ranges you plan to take shots. The cartridges are packaged in box counts of 20 and are boxer-primed, reloadable brass, so if you plan to handload, keep track of brass condition and primer type when reusing cases. MidwayUSA+1

SEO Keywords & Long-Tail Phrases (naturally integrated)

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Final Takeaway

When you need ammunition that combines match-grade consistency with real-world terminal performance, the HSM Tipping Point .300 Win Mag 165 gr Sierra GameChanger (300WINMAG40N / UPC 810742023089) is built to deliver. Precision manufacturing, premium components, and the advanced Sierra GameChanger bullet make this round an excellent choice for hunters and precision shooters who demand both accuracy and stopping power at extended ranges. Check availability at your preferred dealer and step up your hunting loadout with a cartridge designed to perform when it counts. hsmammunition.com+1

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