Load data for .221 Rem. Fireball + 45gr Sierra VarmintKing
Based on C.I.P., the max. allowed case length is 1.400 in / 35.56 mm, the max. cartridge length is 1.830 in / 46.48 mm, and the max. allowed pressure is 46,412 PSI / 3,200 bar.
Based on C.I.P., the max. allowed case length is 1.400 in / 35.56 mm, the max. cartridge length is 1.830 in / 46.48 mm, and the max. allowed pressure is 46,412 PSI / 3,200 bar.
Load Specifications
ImperialMetric
Bullet:.224 | 45gr | VarmintKing
Cartridge:.221 Rem. Fireball load data
Case Length (L3):1.397" | 35.5 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.196" | 5.0 mm
Case Capacity:22 gow | 1.43 cm³
Primer Size:Small Rifle (SR)
Max. Pressure (C.I.P.):46,412 psi | 3,200 bar
Barrel Length:24.0" | 610 mm
Min. Twist Rate:Stabilizes in any common twist
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Community Loads for .221 Rem. Fireball + 45gr Sierra VarmintKing
Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.
| Powder | Charge (gr) | C.O.L. | Barrel Length | Velocity (fps) | Pressure (psi) |
|---|---|---|---|---|---|
| 16.0 gr | 1.830" | 20.0" | 2520 fps | ••• | |
| 16.1 gr | 1.830" | 20.0" | 2534 fps | ••• | |
| 16.6 gr | 1.830" | 20.0" | 2605 fps | ••• | |
| ••• | 1.830" | 20.0" | 2620 fps | ••• | |
| ••• | 1.830" | 20.0" | 2705 fps | ••• | |
| ••• | 1.830" | 20.0" | 2793 fps | ••• | |
| ••• | 1.830" | 20.0" | 2528 fps | ••• | |
| ••• | 1.830" | 20.0" | 2557 fps | ••• | |
| ••• | 1.830" | 20.0" | 2632 fps | ••• | |
| ••• | 1.830" | 20.0" | 2662 fps | ••• | |
| ••• | 1.830" | 20.0" | 2737 fps | ••• | |
| ••• | 1.830" | 20.0" | 2769 fps | ••• | |
| ••• | 1.830" | 20.0" | 2845 fps | ••• | |
| ••• | 1.800" | 24.0" | 2765 fps | ••• | |
| ••• | 1.800" | 24.0" | 2925 fps | ••• | |
| ••• | 1.830" | 20.0" | 2757 fps | ••• | |
| ••• | 1.830" | 20.0" | 2815 fps | ••• | |
| ••• | 1.830" | 20.0" | 2875 fps | ••• | |
| ••• | 1.830" | 20.0" | 2920 fps | ••• | |
| ••• | 1.830" | 20.0" | 2933 fps | ••• | |
| ••• | 1.830" | 20.0" | 2962 fps | ••• | |
| ••• | 1.800" | 24.0" | 2925 fps | ••• | |
| ••• | 1.800" | 24.0" | 2886 fps | ••• | |
| ••• | 1.830" | 20.0" | 2626 fps | ••• | |
| ••• | 1.830" | 20.0" | 2642 fps | ••• | |
| ••• | 1.830" | 20.0" | 2700 fps | ••• | |
| ••• | 1.830" | 20.0" | 2760 fps | ••• | |
| ••• | 1.830" | 20.0" | 2774 fps | ••• | |
| ••• | 1.830" | 20.0" | 2820 fps | ••• | |
| ••• | 1.830" | 20.0" | 2848 fps | ••• | |
| ••• | 1.800" | 24.0" | 2980 fps | ••• | |
| ••• | 1.830" | 20.0" | 2877 fps | ••• | |
| ••• | 1.830" | 20.0" | 2586 fps | ••• | |
| ••• | 1.830" | 20.0" | 2601 fps | ••• | |
| ••• | 1.830" | 20.0" | 2659 fps | ••• | |
| ••• | 1.830" | 20.0" | 2716 fps | ••• | |
| ••• | 1.830" | 20.0" | 2732 fps | ••• | |
| ••• | 1.830" | 20.0" | 2777 fps | ••• | |
| ••• | 1.830" | 20.0" | 2805 fps | ••• | |
| ••• | 1.830" | 20.0" | 2833 fps | ••• | |
| ••• | 1.830" | 20.0" | 2879 fps | ••• | |
| ••• | 1.830" | 20.0" | 2572 fps | ••• | |
| ••• | 1.800" | 24.0" | 2718 fps | ••• | |
| ••• | 1.830" | 20.0" | 2652 fps | ••• | |
| ••• | 1.830" | 20.0" | 2666 fps | ••• | |
| ••• | 1.830" | 20.0" | 2730 fps | ••• | |
| ••• | 1.830" | 20.0" | 2792 fps | ••• | |
| ••• | 1.830" | 20.0" | 2808 fps | ••• | |
| ••• | 1.830" | 20.0" | 2854 fps | ••• | |
| ••• | 1.830" | 20.0" | 2885 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.