Load Specifications
Load data in caliber .22-250 Ackley Improved with .224 | 55gr | Fox Classic Hunter bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 52 and Alliant Reloder-17.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 50,198 psi | 87% | 3412 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 52,272 psi | 90% | 3481 fps | 99.8% |
| Accurate 2495 | <<locked>> | 92% | 51,416 psi | 89% | 3474 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 52,141 psi | 90% | 3524 fps | 99.7% |
| Accurate 4064 | <<locked>> | 94% | 50,952 psi | 88% | 3504 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 88% | 49,603 psi | 86% | 3478 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 94% | 50,778 psi | 88% | 3471 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 88% | 52,098 psi | 90% | 3497 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 88% | 51,706 psi | 89% | 3507 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 49,545 psi | 85% | 3553 fps | 97.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 52,330 psi | 90% | 3645 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 49,734 psi | 86% | 3491 fps | 98.1% |
| Alliant Reloder-10x | <<locked>> | 82% | 49,995 psi | 86% | 3435 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 50,821 psi | 88% | 3517 fps | 97% |
| Alliant Reloder-17 | <<locked>> | 98% | 50,604 psi | 87% | 3599 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 49,153 psi | 85% | 3468 fps | 96% |
| Bofors RP3 | <<locked>> | 94% | 50,343 psi | 87% | 3507 fps | 98.3% |
| Hodgdon Benchmark | <<locked>> | 86% | 50,981 psi | 88% | 3435 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 88% | 51,242 psi | 88% | 3524 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 84% | 48,849 psi | 84% | 3547 fps | 96.5% |
| Hodgdon H322 | <<locked>> | 86% | 51,677 psi | 89% | 3507 fps | 100% |
| Hodgdon H4895 | <<locked>> | 88% | 49,995 psi | 86% | 3494 fps | 97.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,525 psi | 73% | 3333 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 52,199 psi | 90% | 3583 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,418 psi | 59% | 2270 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 50,270 psi | 87% | 3478 fps | 97.8% |
| IMR 3031 | <<locked>> | 92% | 50,546 psi | 87% | 3533 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 52,156 psi | 90% | 3494 fps | 97.3% |
| IMR 4198 | <<locked>> | 82% | 50,372 psi | 87% | 3402 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 52,069 psi | 90% | 3560 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 88% | 52,098 psi | 90% | 3497 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 84% | 52,011 psi | 90% | 3478 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 90% | 52,141 psi | 90% | 3524 fps | 99.7% |
| Lovex S060 | <<locked>> | 88% | 49,690 psi | 86% | 3402 fps | 97.3% |
| Lovex S062 | <<locked>> | 92% | 49,603 psi | 86% | 3455 fps | 98.4% |
| Norma 201 | <<locked>> | 90% | 51,576 psi | 89% | 3484 fps | 98.7% |
| Norma 202 | <<locked>> | 90% | 51,909 psi | 90% | 3501 fps | 99.9% |
| Norma 203B | <<locked>> | 92% | 49,995 psi | 86% | 3501 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 92% | 50,111 psi | 86% | 3514 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 88% | 52,069 psi | 90% | 3524 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 49,879 psi | 86% | 3422 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,447 psi | 59% | 2320 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 51,779 psi | 89% | 3491 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 49,966 psi | 86% | 3576 fps | 96.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 50,546 psi | 87% | 3622 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 86% | 49,385 psi | 85% | 3428 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 92% | 52,141 psi | 90% | 3484 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 96% | 49,821 psi | 86% | 3488 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 90% | 52,141 psi | 90% | 3524 fps | 99.7% |
| Shooters World Precision | <<locked>> | 92% | 49,603 psi | 86% | 3455 fps | 98.4% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 51,285 psi | 88% | 3438 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 52,025 psi | 90% | 3560 fps | 97.7% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 50,850 psi | 88% | 3458 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 51,213 psi | 88% | 3497 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 50,270 psi | 87% | 3386 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 49,922 psi | 86% | 3373 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 49,734 psi | 86% | 3465 fps | 98.6% |
| Somchem S335 | <<locked>> | 88% | 49,472 psi | 85% | 3379 fps | 99.9% |
| Somchem S341 | <<locked>> | 88% | 50,183 psi | 87% | 3451 fps | 97.3% |
| Somchem S355 | <<locked>> | 96% | 50,575 psi | 87% | 3491 fps | 97.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,713 psi | 72% | 3389 fps | 97.3% |
| Vihtavuori N130 | <<locked>> | 86% | 52,156 psi | 90% | 3409 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 49,690 psi | 86% | 3379 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 50,966 psi | 88% | 3468 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 51,793 psi | 89% | 3468 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 48,617 psi | 84% | 3415 fps | 98.7% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,040 psi | 90% | 3514 fps | 96.2% |
| Vihtavuori N530 | <<locked>> | 86% | 51,735 psi | 89% | 3510 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 92% | 51,750 psi | 89% | 3491 fps | 99.9% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,460 psi | 90% | 3576 fps | 96.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 51,039 psi | 88% | 3455 fps | 98.2% |
| Winchester 748 | <<locked>> | 84% | 48,834 psi | 84% | 3488 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 48,950 psi | 84% | 3465 fps | 97.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 41,626 psi | 72% | 3238 fps | 99.9% |
| Accurate 2460 | <<locked>> | 80% | 45,353 psi | 78% | 3343 fps | 99.1% |
| Accurate 2495 | <<locked>> | 80% | 33,910 psi | 58% | 3091 fps | 99.1% |
| Accurate 2520 | <<locked>> | 80% | 38,928 psi | 67% | 3238 fps | 97.5% |
| Accurate 4064 | <<locked>> | 80% | 32,024 psi | 55% | 3051 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 84% | 43,482 psi | 75% | 3340 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 90% | 44,556 psi | 77% | 3337 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,059 psi | 69% | 3232 fps | 96% |
| Alliant AR-Comp | <<locked>> | 80% | 39,030 psi | 67% | 3264 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,238 psi | 80% | 3478 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 45,774 psi | 79% | 3491 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 38,334 psi | 66% | 3225 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,108 psi | 81% | 3379 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 44,498 psi | 77% | 3379 fps | 95.3% |
| Alliant Reloder-17 | 38 gr | 92% | 41,104 psi | 71% | 3369 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 46,021 psi | 79% | 3402 fps | 95.1% |
| Bofors RP3 | <<locked>> | 86% | 38,159 psi | 66% | 3228 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,380 psi | 73% | 3248 fps | 97.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,566 psi | 67% | 3238 fps | 96.3% |
| Hodgdon CFE223 | <<locked>> | 82% | 45,252 psi | 78% | 3465 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 42,380 psi | 73% | 3314 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 82% | 41,002 psi | 71% | 3287 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 40,059 psi | 69% | 3271 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 39,610 psi | 68% | 3297 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,353 psi | 44% | 2034 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 41,553 psi | 72% | 3281 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 34,040 psi | 59% | 3156 fps | 98.4% |
| IMR 4064 | <<locked>> | 90% | 43,395 psi | 75% | 3307 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 47,427 psi | 82% | 3346 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 42,641 psi | 74% | 3353 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 40,059 psi | 69% | 3232 fps | 96% |
| Lovex D073.5 | <<locked>> | 80% | 45,121 psi | 78% | 3340 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 80% | 36,608 psi | 63% | 3179 fps | 96.8% |
| Lovex S060 | <<locked>> | 82% | 41,263 psi | 71% | 3212 fps | 95% |
| Lovex S062 | <<locked>> | 84% | 38,334 psi | 66% | 3196 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 37,289 psi | 64% | 3156 fps | 95.2% |
| Norma 202 | <<locked>> | 80% | 37,391 psi | 64% | 3179 fps | 97.7% |
| Norma 203B | <<locked>> | 88% | 43,729 psi | 75% | 3363 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 88% | 43,903 psi | 76% | 3376 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 42,105 psi | 73% | 3304 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,903 psi | 76% | 3291 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,498 psi | 44% | 2080 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,353 psi | 78% | 3360 fps | 98.6% |
| ReloadSwiss RS 52 | 35.8 gr | 88% | 46,572 psi | 80% | 3501 fps | 95.8% |
| ReloadSwiss RS 60 | 35.6 gr | 86% | 35,998 psi | 62% | 3245 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 41,234 psi | 71% | 3248 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 82% | 38,029 psi | 66% | 3166 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 90% | 40,814 psi | 70% | 3284 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,608 psi | 63% | 3179 fps | 96.8% |
| Shooters World Precision | <<locked>> | 84% | 38,334 psi | 66% | 3196 fps | 95.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,993 psi | 83% | 3373 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 42,337 psi | 73% | 3346 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,442 psi | 82% | 3392 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 42,134 psi | 73% | 3297 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,899 psi | 67% | 3140 fps | 98.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,923 psi | 55% | 2956 fps | 97.1% |
| Somchem S321 | <<locked>> | 80% | 43,250 psi | 75% | 3323 fps | 97.3% |
| Somchem S335 | <<locked>> | 80% | 38,421 psi | 66% | 3140 fps | 98.7% |
| Somchem S341 | <<locked>> | 84% | 43,598 psi | 75% | 3310 fps | 95.6% |
| Somchem S355 | <<locked>> | 90% | 41,771 psi | 72% | 3297 fps | 95.7% |
| Somchem S365 | <<locked>> | 96% | 36,463 psi | 63% | 3245 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 43,395 psi | 75% | 3245 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 36,579 psi | 63% | 3097 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 80% | 34,272 psi | 59% | 3104 fps | 99.1% |
| Vihtavuori N140 | <<locked>> | 80% | 34,853 psi | 60% | 3091 fps | 97.4% |
| Vihtavuori N150 | <<locked>> | 90% | 35,389 psi | 61% | 3107 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 98% | 48,559 psi | 84% | 3445 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 42,163 psi | 73% | 3301 fps | 96.8% |
| Vihtavuori N540 | <<locked>> | 80% | 34,766 psi | 60% | 3104 fps | 96.8% |
| Vihtavuori N550 | <<locked>> | 98% | 49,052 psi | 85% | 3507 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 41,669 psi | 72% | 3251 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 42,264 psi | 73% | 3343 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,397 psi | 78% | 3389 fps | 96.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 73 powders for .22-250 Ackley Improved loaded with the .224 | 55gr | Fox Classic Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,645 fps; across all powders the maximum-charge window runs from 2,270 fps to 3,645 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 73 of the 73 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (400 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.224" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, Hodgdon TrailBoss, ReloadSwiss RS 14 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 60, ReloadSwiss RS 52, Alliant Reloder-17 rank at the top here: for .22-250 Ackley Improved with the .224 | 55gr | Fox Classic Hunter they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.