Nosler Trophy Grade 243 Winchester 100 Grain Partition Ammunition - 20 Rounds

Nosler Trophy Grade 243 Winchester 100 Grain Partition ammunition delivers the controlled expansion and bullet integrity you need for medium-game hunting. Built on Nosler's reputation for precision manufacturing, Trophy Grade rounds combine hand-inspected assembly with premium components designed to perform consistently across a range of hunting scenarios. The 100-grain Partition bullet is engineered to initiate reliable expansion while retaining the mass needed for deep penetration—a balance that matters when you're counting on one shot to count.

The Partition bullet design is the heart of Trophy Grade's performance. A thin, fully tapered jacket ruptures instantly upon impact, but the integral lead partition controls that expansion and works with a thickened rear section to retain the back half of the bullet's core. This means you get the quick expansion needed for effective energy transfer at closer ranges, paired with the structural integrity to maintain penetration at longer distances or on tougher game. Muzzle velocity of 3100 fps and muzzle energy of 1920 ft-lbs put this load in the working sweet spot for 243 Winchester rifles.

These are loaded in Nosler Custom brass—the same carefully prepared cases you'll find in Nosler's match ammunition—and packaged 20 rounds per box. If you're a 243 Winchester hunter who values consistency and proven bullet performance over bargain-bin loads, Trophy Grade is worth the investment. Factory ammunition this closely controlled saves you time at the reloading bench and delivers the terminal performance that separates a clean harvest from a frustrating day afield.

Key Features

• Partition bullet design: thin-jacket expansion with integral lead core separation for reliable mushrooming and deep penetration
• Hand-inspected assembly and strict manufacturing tolerances for consistent shot-to-shot performance
• Nosler Custom brass for reliable feeding and chamber fit across 243 Winchester rifles
• Delivers 3100 fps muzzle velocity and 1920 ft-lbs muzzle energy
• Packaged 20 rounds per box for convenient field carry and reload planning

Specifications

Caliber	243 Winchester
Bullet Type	Partition
Bullet Weight	100 grains
Muzzle Velocity	3100 fps
Muzzle Energy	1920 ft-lbs
Rounds Per Box	20

Frequently Asked Questions

Is Trophy Grade 243 Winchester ammunition suitable for medium-game hunting?

Yes. The 100-grain Partition bullet is engineered for controlled expansion and penetration on medium game. The combination of quick jacket rupture and integral partition design supports reliable performance across typical hunting ranges and impact velocities.

What makes the Partition bullet design different?

The Partition features a fully tapered jacket that initiates expansion immediately upon impact, while an internal lead partition separates the front and rear cores. This design allows the front half to expand and transfer energy quickly while the rear core is retained for deep penetration—balancing quick energy transfer with structural integrity.

What brass is used in Trophy Grade ammunition?

Trophy Grade rounds are loaded in Nosler Custom brass, the same premium brass used in Nosler's match-grade ammunition. This ensures consistent chamber fit and reliable feeding across 243 Winchester rifles.

How many rounds are in a box of Trophy Grade 243 Winchester?

Each box contains 20 rounds.