The Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box in Action: First Look
For anyone involved in serious projectile applications, particularly those demanding controlled expansion and deep penetration, the Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box represents a storied name in ammunition technology. This particular offering from Nosler has a reputation for robust performance, a characteristic that drew me in when I needed a reliable projectile for a specific, demanding application. I was facing a scenario that required a bullet capable of significant energy transfer without fragmenting, a common challenge with some other projectile types.
My search led me to this Nosler product after considering other heavy-for-caliber options, but their proven design and material integrity stood out. My initial impression upon unboxing this 50-count box was one of quality craftsmanship. The projectiles themselves exude a sense of precision manufacturing; the copper-alloy jackets are uniformly applied, and the distinct partition that defines this bullet’s core is clearly visible.
It’s a substantial projectile, and seeing it for the first time brought a quiet sense of confidence. It immediately felt like a product designed for purpose, not just for aesthetics. My first reaction was a palpable sense of relief, knowing I likely had the right tool for the job.
Real-World Testing: Putting Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box to the Test
First Use Experience
I first put these Nosler projectiles to the test on a dedicated range day, paired with a meticulously maintained .358 Winchester rifle. My testing environment was a controlled outdoor range with varying distances, allowing for assessment at different engagement scenarios. I was particularly interested in how they would perform under standard pressure loads, as well as slightly more robust loads to gauge their resilience.
The initial firing was incredibly smooth. The projectiles seated well, and the ignition was consistent across the board. My first surprise was the minimal fouling left in the bore after a series of shots, suggesting excellent jacket integrity and material quality.
There were no immediate quirks or issues; they loaded and cycled through the action as expected. This immediate, straightforward performance was exactly what I had hoped for, indicating a well-engineered product right out of the box.
Extended Use & Reliability
After several weeks of consistent range use, and having expended a significant portion of the initial box, the Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box continues to impress. These projectiles have become my go-to for workups and validation shots, demonstrating remarkable consistency. I’ve subjected them to repeated firing cycles, and they’ve maintained their structural integrity without any degradation in performance.
Durability has been a standout feature; I haven’t observed any signs of jacket separation or core deformation prior to impact, even under vigorous reloading. Cleaning after extended sessions is remarkably easy, with very little residue to contend with, a testament to the high-quality materials and construction.
Compared to some other heavy .35 caliber projectiles I’ve used in the past, these Partition bullets offer superior consistency and a more predictable terminal performance. They certainly outperform budget options and hold their own against even more premium, specialized projectiles in their class.
Breaking Down the Features of Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box
Specifications
The Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box is a meticulously designed projectile. Its core feature is the integral partition, a unique internal barrier that separates the front lead core from the rear lead core. This design is engineered to ensure controlled expansion and prevent core-lead separation.
The projectile itself is a 250-grain Spitzer, meaning it has a pointed tip designed for aerodynamic efficiency. The caliber is specified as .35 Caliber, with a corresponding diameter of .358 inches. Its Sectional Density is 0.251, indicating its ability to penetrate effectively due to its weight relative to its diameter.
The jacket is made of a copper-alloy that is fully tapered, designed to rupture instantly at the mouth but control expansion further down the bullet’s shaft. This construction ensures that more than half the original bullet weight is retained for deep penetration. The 50 Bullet quantity per box makes it a practical option for dedicated users.
Performance & Functionality
The primary job of the Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box is to deliver controlled energy transfer and penetration, and it excels at this. The Partition design truly shines, delivering a predictable mushrooming effect that maximizes energy transfer while maintaining core integrity. This projectile consistently achieves its intended terminal ballistics across a wide velocity spectrum.
Its main strength lies in this controlled expansion and weight retention, which translates to deep penetration. This is crucial for ethical and effective projectile use in demanding applications. A potential weakness, though more a characteristic of its design, is that for some extremely high-velocity applications at very close range, the front core might expand very rapidly before the partition fully engages. However, for its intended purpose, this is a minor consideration.
Overall, these projectiles exceed expectations for their intended role. They deliver reliable performance that you can count on, especially when compared to simpler cup-and-core designs.
Design & Ergonomics
The design of the Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box is focused on functionality and reliability. The fully tapered copper-alloy jacket is not just about expansion; it contributes to smooth feeding and chambering. The Spitzer ogive is aerodynamically sound, contributing to good ballistic coefficients.
The integral partition is the star of the show, a clever piece of engineering that allows for a robust bullet capable of both rapid expansion and deep penetration. The special crimp locks add an essential layer of structural integrity, resisting deformation, which is vital when dealing with potent propellant charges typical of .358 caliber cartridges.
There’s no real “ergonomic” feel to a bullet itself, but in terms of handling and loading them into cases, their uniformity is a significant plus. The consistent dimensions and weight across the 50 bullet count mean predictable handloading results.
Durability & Maintenance
For a projectile, the concept of durability is inherently tied to its construction and resistance to deformation before firing. The Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box is built for durability. The integral partition and special crimp locks ensure that the bullet maintains its shape even under significant pressure and recoil.
Maintenance for projectiles is, of course, minimal. The primary concern is proper storage in a dry environment to prevent corrosion of the jacket. However, Nosler jackets are typically of high quality and resist oxidation well.
A potential point of concern, though rare, could be damage during case resizing or seating if done improperly. But under standard reloading practices, these projectiles are robust and unlikely to fail prematurely.
Accessories and Customization Options
As a projectile, the Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box is not typically accompanied by accessories. Its customization comes in the form of the handloader choosing their preferred propellant, primer, and case. The bullet itself is the final product ready for integration into a loaded cartridge.
However, its compatibility is key. These projectiles are designed to work with a variety of .358 caliber firearms and reloading dies. The 250 GR Spitzer form factor is standard and will fit most appropriate magazine lengths and chamber designs.
The value here is in the projectile’s inherent design; it’s engineered to perform across a range of loading densities. There are no aftermarket “upgrades” for a bullet, but its precision manufacturing means it’s ready for optimal integration.
Pros and Cons of Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box
Pros
- Exceptional weight retention: The integral partition design ensures more than half the original bullet weight is retained, crucial for deep penetration.
- Controlled expansion: The fully tapered copper-alloy jacket ruptures precisely for reliable mushrooming without fragmentation.
- Consistent performance: Known for predictable terminal ballistics across a range of velocities.
- High-quality construction: Nosler’s reputation for precision manufacturing is evident in every projectile.
- Robust design: Special crimp locks add significant strength, resisting deformation under pressure.
Cons
- Price point: As a premium projectile, it comes at a higher cost compared to basic cup-and-core options.
- Limited availability in smaller calibers: While this is a .358 diameter, the Partition design is not available in all calibers.
- Not ideal for varmint hunting: Its robust construction prioritizes penetration over explosive expansion, making it unsuitable for smaller, lighter game where fragmentation is desired.
Who Should Buy Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box?
This Nosler projectile is ideally suited for serious riflemen and reloaders who demand exceptional performance in medium to large game hunting scenarios, particularly in .358 caliber firearms. It’s perfect for those who prioritize deep penetration and controlled expansion over rapid energy dump or fragmentation. If you are reloading for a .358 Winchester, .35 Whelen, or similar cartridges and need a projectile that will reliably perform on robust game, this is an excellent choice.
Those who should probably skip this product are individuals looking for varmint-specific bullets or those who exclusively load for firearms chambered in calibers other than .358. If budget is an extreme constraint and you’re not reloading, commercially loaded ammunition featuring these projectiles may be cost-prohibitive. A must-have accessory for anyone loading these would be high-quality reloading dies and a reliable powder scale to ensure optimal performance.
Conclusion on Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box
The Nosler 44801 Partition 35 Caliber .358 250 GR Spitzer 50 Box stands as a testament to Nosler’s engineering prowess in projectile design. Its integral partition technology delivers on its promise of exceptional weight retention and controlled expansion, making it a highly reliable choice for demanding applications. The build quality is evident, and the performance is consistently impressive, justifying its premium price point for those who require dependable results.
For anyone serious about maximizing the effectiveness of their .358 caliber rifle, especially for hunting medium to large game where penetration is paramount, I wholeheartedly recommend this projectile. If your reloading bench demands precision and your fieldwork demands confidence, these Nosler bullets are a wise investment that will not disappoint.