Load data for .22-250 Ackley Improved + 55gr Sierra HPBT GameKing

522 suitable loads across 94 powder(s) for cartridge .22-250 Ackley Improved with 55gr Sierra HPBT GameKing bullet.

The most recommended powders for this combination are ReloadSwiss RS 60, Alliant Reloder-17 and ReloadSwiss RS 52.

Based on Wildcat, the max. allowed case length is 1.908 in / 48.46 mm, the max. cartridge length is 2.350 in / 59.69 mm, and the max. allowed pressure is 57,986 PSI / 3,998 bar.

Based on Wildcat, the max. allowed case length is 1.908 in / 48.46 mm, the max. cartridge length is 2.350 in / 59.69 mm, and the max. allowed pressure is 57,986 PSI / 3,998 bar.

Load Specifications

ImperialMetric

Bullet:.224 | 55gr | HPBT GameKing

Cartridge:.22-250 Ackley Improved load data

Case Length (L3):1.940" | 49.3 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.214" | 5.4 mm

Case Capacity:46.9 gow | 3.04 cm³

Primer Size:Large Rifle (LR)

Max. Pressure (Wildcat):57,986 psi | 3,998 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:1:12.0

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Community Loads for .22-250 Ackley Improved + 55gr Sierra HPBT GameKing

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)

36.8 gr	2.445"	24.0"	3128 fps	•••
38.2 gr	2.445"	24.0"	3252 fps	•••
39.6 gr	2.445"	24.0"	3379 fps	•••
•••	2.445"	24.0"	3503 fps	•••
•••	2.445"	24.0"	3635 fps	•••

•••	2.445"	24.0"	3372 fps	•••
•••	2.445"	24.0"	3529 fps	•••
•••	2.445"	24.0"	3663 fps	•••

•••	2.445"	24.0"	3243 fps	•••
•••	2.445"	24.0"	3344 fps	•••
•••	2.445"	24.0"	3441 fps	•••
•••	2.445"	24.0"	3531 fps	•••

•••	2.445"	24.0"	3366 fps	•••
•••	2.445"	24.0"	3488 fps	•••
•••	2.445"	24.0"	3608 fps	•••

•••	2.445"	24.0"	3162 fps	•••
•••	2.445"	24.0"	3286 fps	•••
•••	2.445"	24.0"	3394 fps	•••
•••	2.445"	24.0"	3507 fps	•••
•••	2.445"	24.0"	3603 fps	•••

•••	2.445"	24.0"	3132 fps	•••
•••	2.445"	24.0"	3240 fps	•••
•••	2.445"	24.0"	3349 fps	•••
•••	2.445"	24.0"	3474 fps	•••
•••	2.445"	24.0"	3592 fps	•••

•••	2.445"	24.0"	3196 fps	•••
•••	2.445"	24.0"	3295 fps	•••
•••	2.445"	24.0"	3402 fps	•••
•••	2.445"	24.0"	3529 fps	•••

•••	2.445"	24.0"	3362 fps	•••
•••	2.445"	24.0"	3471 fps	•••

•••	2.445"	24.0"	3333 fps	•••
•••	2.445"	24.0"	3446 fps	•••
•••	2.445"	24.0"	3557 fps	•••

•••	2.445"	24.0"	3222 fps	•••
•••	2.445"	24.0"	3323 fps	•••
•••	2.445"	24.0"	3421 fps	•••
•••	2.445"	24.0"	3527 fps	•••

•••	2.445"	24.0"	3053 fps	•••
•••	2.445"	24.0"	3157 fps	•••
•••	2.445"	24.0"	3262 fps	•••
•••	2.445"	24.0"	3368 fps	•••
•••	2.445"	24.0"	3473 fps	•••
•••	2.445"	24.0"	3580 fps	•••

•••	2.445"	24.0"	3164 fps	•••
•••	2.445"	24.0"	3268 fps	•••
•••	2.445"	24.0"	3376 fps	•••
•••	2.445"	24.0"	3487 fps	•••

•••	2.445"	24.0"	3351 fps	•••
•••	2.445"	24.0"	3481 fps	•••

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