Frontier 10mm/.40 165gr CMJ RNFP Bullets – .400″ (750)
The Frontier 10mm/.40 165gr CMJ Round-Nose Flat-Point bullet is designed for consistent accuracy, reliable feeding and economical handgun-ammunition reloading.
Its 165-grain weight and .400-inch diameter make it suitable for compatible 10mm Auto and .40 S&W loads. The RNFP profile combines the feeding characteristics of a rounded nose with a flat frontal surface, making it well suited to target practice, practical shooting and competition use.
Frontier’s Complete Metal Jacket construction fully encloses the lead-antimony core in copper. The bullets are restrike-finished to improve dimensional consistency and uniform performance.
Key Features
- Frontier Complete Metal Jacket bullet
- Suitable for compatible 10mm Auto and .40 S&W loads
- 165-grain bullet weight
- Round-nose flat-point profile
- .400-inch bullet diameter
- Fully copper-coated lead-antimony core
- Restrike-finished for improved uniformity
- Designed for dependable feeding
- Suitable for target, practical and competition shooting
- Bulk box containing 750 bullets
Specifications
- Brand: Frontier
- Calibre: 10mm/.40
- Compatible cartridges: 10mm Auto and .40 S&W
- Bullet diameter: .400″
- Bullet weight: 165 grains
- Bullet profile: Round-nose flat point
- Construction: Complete Metal Jacket
- Core material: Lead-antimony alloy
- Finish: Copper plated and restrike finished
- Sectional density: 0.147
- Quantity: 750 bullets
- Frontier manufacturer SKU: 100123
- Supplier product code: FRO023
- Product type: Handgun-reloading projectile
Important: These are component bullets for ammunition reloading and are not loaded cartridges. The 10mm Auto and .40 S&W use different cases, powder charges and pressure specifications. Always use published load data for the exact cartridge and bullet weight. Begin with the recommended starting load and confirm the correct cartridge overall length and crimp for the firearm being used.
Product image may differ slightly from the actual item. Please confirm stock availability before purchasing, as stock levels may change without notice.

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