Nosler Partition Bullets .30 Cal .308" 170 Gr Rn 50/Ct
The Nosler Partition .30 caliber rifle bullet has earned its reputation as one of hunting's most trusted designs since 1948. This .308" 170-grain round nose bullet combines controlled expansion with deep penetration—two qualities that matter when you need reliable terminal performance in the field. Reloaders who demand consistency and predictable bullet behavior reach for Partitions, and this 50-count box gives you what you need to build ammunition that performs across a range of hunting scenarios and impact velocities.
What sets the Partition apart is its dual-core construction: a front lead alloy designed to expand aggressively and transfer energy, paired with a rear core separated by an internal partition. That partition is the key. It supports the mushroomed front section while keeping the back half intact, which means the bullet retains more than two-thirds of its original weight for deep, straight-line penetration. The tapered copper-alloy jacket ruptures cleanly at the thin mouth but thickens gradually along the body, controlling expansion uniformly whether you're shooting standard velocities or pushing a magnum. The round nose profile makes these bullets a solid choice for lever actions and other rifles where you need reliable feeding.
Whether you're hand-loading for deer, elk, or other big game, the Partition delivers the bone-crushing energy and massive wound channel that earned it a place in countless hunters' ammunition boxes. If you've already proven these bullets work in your rifle, buying in bulk at this quantity keeps your reloading bench stocked and ready.
Key Features
- Dual-core lead alloy construction for consistent expansion and shock transfer
- Integral partition design retains over two-thirds of bullet weight for deep penetration
- Tapered copper-alloy jacket controls expansion at high and low velocities
- Round nose profile ensures reliable feeding in lever-action and magazine-fed rifles
- Special crimp locks resist deformation under magnum pressures
- 50 bullets per box for reloaders building hunting ammunition
Specifications
| Caliber | .30 caliber |
| Bullet Diameter | .308" |
| Weight | 170 grains |
| Bullet Style | Round nose |
| Base Type | Flat |
| Count per Box | 50 |
Frequently Asked Questions
What rifles can I use these .308" 170-grain bullets in?
The .308" diameter and round nose profile work in .30 caliber rifles including lever actions, bolt actions, and semi-automatics. Always verify that your specific rifle's twist rate and magazine or loading system accommodate 170-grain bullets before reloading.
How do Partition bullets perform at different impact velocities?
The tapered copper-alloy jacket and dual-core design provide consistent expansion across a broad velocity range. The partition separates the front and rear cores, allowing the front section to mushroom reliably and the rear core to stay intact for penetration, whether you're shooting standard loads or magnum velocities.
What is the purpose of the integral partition inside the bullet?
The partition supports the expanded mushroom of the front lead core while keeping the rear lead core enclosed and intact. This separation ensures the bullet retains more than two-thirds of its original weight, which is critical for deep penetration on larger game.
Are these bullets suitable for hunting?
Yes. The Nosler Partition is a purpose-built hunting bullet designed to deliver bone-crushing energy, massive wound channels, and deep penetration—qualities that have made it a benchmark in the hunting community since 1948.

