| LoadID | 10524 |
| Bullet | FMJ |
| Bullet Weight | 123 grs |
| Powder | AA220 |
| Powder Weight | 20 grs |
| Primer | CCI 450 Magnum |
| Brass Make | Remington .221 Fireball |
| Barrel Length | 18" Midi (inches) |
| C.O.L | 2.0115 (inches) |
| Velocity | 2650 fps |
| Group 100 yds | 1.2" (inches) |
| Submitted By | Rapidrob |
| Gun Info | Home built AR-15 |
| Comment | Lee Factory Crimp Die is needed fr a clean powder burn. |