Sellier & Bellot 243 Winchester 100 Grain Soft Point Rifle Ammo 20 Rounds. A lead core with a precisely engineered jacket results from its controlled expansion and high weight retention. Specifications for Sellier & Bellot 243 Winchester 100 Grain Soft Point Rifle Ammunition: Manufacturer: Sellier & Bellot Caliber: .243 Winchester Number of Rounds: 20 Bullet Type: Soft Point (SP) Bullet Weight: 100 grain Cartridge Case Material: Brass Muzzle Velocity: 2854 ft/s Muzzle Energy: 1809 ft-lbs Application: Hunting Package Type: Box Primer Style: Centerfire Sectional Density: 0.242 G1 Ballistic Coefficient: 0.315 G7 Ballistic Coefficient: 0.158 Package Contents: Sellier & Bellot 243 Winchester 100 Grain Soft Point Rifle Ammunition What is Sellier & Bellot 243 Winchester 100 Grain Soft Point Rifle Ammunition good for? The manufacturer says that it is good for hunting.Sellier & Bellot SB243A: 243 Winchester 100 Grain Soft Point Rifle Ammo 20 Rounds