AR-15Bolt face: 5.56/.223
.450 Bushmaster Ballistics
Big-bore thumper designed by Tim LeGendre and Hornady for large game at moderate range. Common in straight-wall states for deer hunting. Uses standard AR-15 bolt with dedicated magazines.
Cartridge Specifications
SAAMI Max Pressure
Bullet Diameter
Case Length
Overall Length
Parent Case
Bolt Face
Min Barrel
Platform
Common Bullet Weights and Types
Hornady 250 gr FTXFederal 260 gr Fusion
Effective Range by Application
Large game hunting0 to 200 yd
Self-defense0 to 100 yd
Barrel Twist Rate Recommendations
250 to 300 gr1:24
Data Disclaimer
Ballistic data is approximate and varies by ammunition lot, barrel condition, altitude, and temperature. Data sourced from published SAAMI and manufacturer load data. Always confirm zero and trajectory with your specific firearm.
Detailed load data for .450 Bushmaster is coming soon. In the meantime, review the specifications above and consult your ammunition manufacturer for load-specific trajectory.
Pick the right barrel
Twist rate should match the bullet weights you plan to shoot. See barrel steel grades, profiles, chamber types, and twist rate guidance on the barrel specs page, then jump into the builder to filter barrels chambered in .450 Bushmaster.