Nosler 9.3Mm .366 286Gr Partition 50Rd/Box

The Nosler 9.3mm .366 286gr Partition is a purpose-built hunting bullet for dangerous game and large-frame rifles where deep, reliable penetration matters as much as quick impact effect. Built on the Partition design that's been the standard for African PH's and North American hunters pursuing elk, moose, and larger species since 1948, this load delivers the controlled expansion and weight retention that separate field-proven ammunition from bench-only performers.

The Partition's dual-core construction works through a simple but effective mechanical principle: a lead-alloy foremost core ruptures and expands on impact, while a tougher rear core stays intact, separated by an internal partition. This design holds onto roughly two-thirds of the bullet's original weight through the exit side, giving you the penetration needed to reach vitals on heavily-built game. The tapered copper-alloy jacket peels back uniformly as it expands, maximizing mushroom consistency across impact velocities—whether you're shooting at closer range or stretching distance.

For handloaders building cartridges like the 9.3x62 Mauser, 9.3x74R, or modern 9.3x66 Sako, these 286-grain Partitions offer the weight and construction to handle what big-bore rifles were designed to do. This box contains 50 rounds of component bullets, ready for your reloading setup. If you're working up loads for backcountry hunts where a second shot may not be an option, the Partition's reputation for deep, straight-line penetration and consistent performance is exactly why it remains the reference standard in the category.

Key Features

• Dual-core, single-partition design for controlled expansion and deep penetration
• Tapered copper-alloy jacket that ruptures uniformly on impact
• Retains approximately two-thirds original bullet weight for consistent through-game performance
• Lead-alloy core materials engineered for reliable mushrooming across impact velocities
• Purpose-built for large-frame rifles and dangerous game hunting

Specifications

Frequently Asked Questions

What rifle cartridges does the 9.3mm .366 286gr Partition work in?

This bullet is designed for 9.3mm rifle cartridges, including the 9.3x62 Mauser, 9.3x74R, 9.3x65 (Mannlicher-Schönauer), and modern high-performance rounds like the 9.3x66 Sako. If you're uncertain about your specific cartridge, check your rifle's documentation or consult a qualified gunsmith or reloading manual for load compatibility and guidance.

Is the Partition a good choice for long-range hunting?

The Partition is known for reliable, deep penetration and controlled expansion across a wide range of impact velocities, making it a dependable option for hunting scenarios where penetration is the priority. However, long-range ballistic performance depends on your specific cartridge, rifle, and distance capabilities—consult published reloading data and ballistic resources for your setup.

How much weight does a Partition bullet retain after impact?

The Nosler Partition is designed to retain approximately two-thirds of its original weight after expansion, with the enclosed rear core remaining intact. This weight retention supports deep penetration while still achieving rapid, controlled expansion of the forward section.

What's included in a box of Nosler Partition bullets?

Each box contains 50 component bullets ready for handloading. You'll need powder, primers, cartridge cases, and a reloading press to complete your ammunition.