Load data for .221 Rem. Fireball + 50gr 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 | 50gr | VarmintKing

Cartridge:.221 Rem. Fireball load data

Case Length (L3):1.397" | 35.5 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.243" | 6.2 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:1:12.5

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Community Loads for .221 Rem. Fireball + 50gr Sierra VarmintKing

Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.

Charge (gr)	C.O.L.	Barrel Length	Velocity (fps)	Pressure (psi)

15.6 gr	1.830"	20.0"	2450 fps	•••
16.2 gr	1.830"	20.0"	2535 fps	•••
16.8 gr	1.830"	20.0"	2620 fps	•••
•••	1.830"	20.0"	2705 fps	•••
•••	1.830"	20.0"	2790 fps	•••

•••	1.830"	20.0"	2567 fps	•••
•••	1.830"	20.0"	2657 fps	•••
•••	1.830"	20.0"	2746 fps	•••

•••	1.830"	20.0"	2843 fps	•••

•••	1.830"	20.0"	2744 fps	•••
•••	1.830"	20.0"	2807 fps	•••
•••	1.830"	20.0"	2869 fps	•••

•••	1.830"	20.0"	2583 fps	•••
•••	1.830"	20.0"	2655 fps	•••
•••	1.830"	20.0"	2729 fps	•••
•••	1.830"	20.0"	2802 fps	•••

•••	1.830"	20.0"	2510 fps	•••
•••	1.830"	20.0"	2582 fps	•••
•••	1.830"	20.0"	2655 fps	•••
•••	1.830"	20.0"	2724 fps	•••
•••	1.830"	20.0"	2797 fps	•••

•••	1.830"	20.0"	2535 fps	•••
•••	1.830"	20.0"	2611 fps	•••
•••	1.830"	20.0"	2687 fps	•••
•••	1.830"	20.0"	2764 fps	•••
•••	1.830"	20.0"	2839 fps	•••

Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.