Load Specifications
Load data in caliber .22-250 Ackley Improved with .224 | 55gr | MEN SP bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon LEVERevolution and SNPE Vectan SP 11.
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>> | 88% | 51,982 psi | 90% | 3435 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 50,299 psi | 87% | 3438 fps | 99.6% |
| Accurate 2495 | <<locked>> | 92% | 49,240 psi | 85% | 3432 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 50,227 psi | 87% | 3481 fps | 99.4% |
| Accurate 4064 | <<locked>> | 96% | 52,460 psi | 90% | 3527 fps | 100% |
| Accurate LT-30 | <<locked>> | 82% | 51,837 psi | 89% | 3379 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 52,185 psi | 90% | 3406 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 90% | 51,097 psi | 88% | 3497 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 96% | 52,141 psi | 90% | 3488 fps | 96.8% |
| ADI AR 2219 | <<locked>> | 82% | 52,228 psi | 90% | 3510 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 50,285 psi | 87% | 3455 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 88% | 49,385 psi | 85% | 3465 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 51,329 psi | 89% | 3579 fps | 97.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 50,734 psi | 87% | 3596 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 51,358 psi | 89% | 3510 fps | 98.2% |
| Alliant Reloder-10x | <<locked>> | 84% | 51,648 psi | 89% | 3458 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 52,083 psi | 90% | 3533 fps | 97% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,315 psi | 90% | 3625 fps | 98.2% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 50,966 psi | 88% | 3353 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 50,821 psi | 88% | 3494 fps | 96.1% |
| Bofors RP3 | <<locked>> | 96% | 51,677 psi | 89% | 3527 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 49,603 psi | 86% | 3396 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 88% | 49,066 psi | 85% | 3471 fps | 98.6% |
| Hodgdon CFE223 | <<locked>> | 86% | 50,386 psi | 87% | 3570 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 86% | 49,995 psi | 86% | 3468 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 82% | 51,561 psi | 89% | 3491 fps | 99.8% |
| Hodgdon H4895 | <<locked>> | 90% | 51,532 psi | 89% | 3514 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 50,024 psi | 86% | 3530 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,229 psi | 59% | 2254 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 51,924 psi | 90% | 3501 fps | 97.9% |
| IMR 3031 | <<locked>> | 94% | 52,011 psi | 90% | 3556 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 50,821 psi | 88% | 3458 fps | 96.8% |
| IMR 4198 | <<locked>> | 84% | 52,011 psi | 90% | 3422 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 50,227 psi | 87% | 3514 fps | 97.2% |
| IMR 8208 XBR | <<locked>> | 88% | 50,285 psi | 87% | 3455 fps | 98.3% |
| Lovex D073.5 | <<locked>> | 84% | 50,169 psi | 87% | 3435 fps | 98.9% |
| Lovex D073.6 | <<locked>> | 90% | 50,227 psi | 87% | 3481 fps | 99.4% |
| Lovex S060 | <<locked>> | 90% | 51,648 psi | 89% | 3432 fps | 97.4% |
| Lovex S062 | <<locked>> | 94% | 51,169 psi | 88% | 3478 fps | 98.5% |
| Norma 201 | <<locked>> | 90% | 50,140 psi | 86% | 3448 fps | 98.3% |
| Norma 202 | <<locked>> | 90% | 50,009 psi | 86% | 3461 fps | 99.7% |
| Norma 203B | <<locked>> | 94% | 51,169 psi | 88% | 3517 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 94% | 51,967 psi | 90% | 3543 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 88% | 49,966 psi | 86% | 3471 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 86% | 51,909 psi | 90% | 3451 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,287 psi | 59% | 2303 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 49,893 psi | 86% | 3445 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 51,634 psi | 89% | 3602 fps | 96.9% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 52,199 psi | 90% | 3645 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 88% | 51,068 psi | 88% | 3455 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 92% | 50,299 psi | 87% | 3438 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 98% | 51,503 psi | 89% | 3510 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 50,227 psi | 87% | 3481 fps | 99.4% |
| Shooters World Precision | <<locked>> | 94% | 51,169 psi | 88% | 3478 fps | 98.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 49,937 psi | 86% | 3402 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 50,053 psi | 86% | 3514 fps | 97.1% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 48,965 psi | 84% | 3415 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 49,559 psi | 85% | 3451 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 51,822 psi | 89% | 3406 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 51,706 psi | 89% | 3396 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 51,764 psi | 89% | 3497 fps | 98.8% |
| Somchem S335 | <<locked>> | 90% | 51,387 psi | 89% | 3406 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 51,967 psi | 90% | 3478 fps | 97.4% |
| Somchem S355 | <<locked>> | 98% | 51,924 psi | 90% | 3510 fps | 98% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,045 psi | 69% | 3337 fps | 96.4% |
| Vihtavuori N120 | <<locked>> | 82% | 52,475 psi | 90% | 3353 fps | 100% |
| Vihtavuori N130 | <<locked>> | 86% | 50,502 psi | 87% | 3373 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 51,126 psi | 88% | 3396 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 52,446 psi | 90% | 3488 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 49,951 psi | 86% | 3425 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 46,963 psi | 81% | 3376 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 86% | 50,241 psi | 87% | 3468 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 92% | 50,053 psi | 86% | 3455 fps | 99.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,139 psi | 85% | 3406 fps | 97.6% |
| Winchester 748 | <<locked>> | 86% | 50,792 psi | 88% | 3520 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 84% | 50,575 psi | 87% | 3491 fps | 97.8% |
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% | 40,306 psi | 70% | 3205 fps | 99.8% |
| Accurate 2460 | <<locked>> | 80% | 43,830 psi | 76% | 3304 fps | 98.8% |
| Accurate 2495 | <<locked>> | 80% | 32,677 psi | 56% | 3051 fps | 98.7% |
| Accurate 2520 | <<locked>> | 80% | 37,463 psi | 65% | 3196 fps | 96.9% |
| Accurate 4064 | <<locked>> | 80% | 30,864 psi | 53% | 3012 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 48,820 psi | 84% | 3327 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 80% | 49,168 psi | 85% | 3343 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 86% | 45,049 psi | 78% | 3369 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 92% | 45,919 psi | 79% | 3360 fps | 95.3% |
| ADI AR 2219 | <<locked>> | 80% | 48,675 psi | 84% | 3442 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,001 psi | 67% | 3196 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 37,594 psi | 65% | 3228 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 44,889 psi | 77% | 3438 fps | 96.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 46,978 psi | 81% | 3510 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 39,624 psi | 68% | 3251 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 45,701 psi | 79% | 3343 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 45,803 psi | 79% | 3399 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 94% | 42,583 psi | 73% | 3396 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 47,834 psi | 82% | 3297 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 47,514 psi | 82% | 3425 fps | 95.2% |
| Bofors RP3 | <<locked>> | 88% | 39,189 psi | 68% | 3248 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,973 psi | 71% | 3205 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,217 psi | 64% | 3196 fps | 95.5% |
| Hodgdon CFE223 | <<locked>> | 84% | 47,021 psi | 81% | 3494 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 41,104 psi | 71% | 3278 fps | 99.1% |
| Hodgdon H335 | <<locked>> | 80% | 48,153 psi | 83% | 3425 fps | 99.5% |
| Hodgdon H4895 | <<locked>> | 84% | 42,366 psi | 73% | 3314 fps | 95.7% |
| Hodgdon LEVERevolution | 34.4 gr | 88% | 41,104 psi | 71% | 3330 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,266 psi | 44% | 2021 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 42,685 psi | 74% | 3301 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 32,735 psi | 56% | 3114 fps | 97.8% |
| IMR 4064 | <<locked>> | 92% | 44,686 psi | 77% | 3327 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 45,963 psi | 79% | 3314 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 43,787 psi | 76% | 3373 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 39,001 psi | 67% | 3196 fps | 95.4% |
| Lovex D073.5 | <<locked>> | 80% | 43,685 psi | 75% | 3301 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 80% | 35,186 psi | 61% | 3133 fps | 96.1% |
| Lovex S060 | <<locked>> | 84% | 42,670 psi | 74% | 3235 fps | 95.2% |
| Lovex S062 | <<locked>> | 86% | 39,610 psi | 68% | 3222 fps | 95.8% |
| Norma 201 | <<locked>> | 82% | 38,754 psi | 67% | 3189 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 36,245 psi | 63% | 3143 fps | 97.2% |
| Norma 203B | <<locked>> | 88% | 42,003 psi | 72% | 3317 fps | 95% |
| Ramshot Big Game | <<locked>> | 90% | 44,976 psi | 78% | 3396 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 43,685 psi | 75% | 3337 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 82% | 45,571 psi | 79% | 3320 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,411 psi | 44% | 2067 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,874 psi | 76% | 3317 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 44,715 psi | 77% | 3455 fps | 95% |
| ReloadSwiss RS 60 | 35.3 gr | 88% | 37,101 psi | 64% | 3268 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 39,972 psi | 69% | 3209 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 84% | 39,247 psi | 68% | 3189 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 92% | 41,959 psi | 72% | 3307 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,186 psi | 61% | 3133 fps | 96.1% |
| Shooters World Precision | <<locked>> | 86% | 39,610 psi | 68% | 3222 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 46,557 psi | 80% | 3333 fps | 97.2% |
| SNPE Vectan SP 11 | 36.3 gr | 92% | 43,700 psi | 75% | 3369 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 46,021 psi | 79% | 3356 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 43,337 psi | 75% | 3317 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,782 psi | 65% | 3104 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,908 psi | 53% | 2920 fps | 96.5% |
| Somchem S321 | <<locked>> | 80% | 41,887 psi | 72% | 3284 fps | 96.7% |
| Somchem S335 | <<locked>> | 80% | 37,362 psi | 64% | 3104 fps | 98.3% |
| Somchem S341 | <<locked>> | 86% | 45,310 psi | 78% | 3343 fps | 95.8% |
| Somchem S355 | <<locked>> | 90% | 40,379 psi | 70% | 3258 fps | 95% |
| Somchem S365 | <<locked>> | 98% | 37,681 psi | 65% | 3271 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 49,342 psi | 85% | 3301 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 42,119 psi | 73% | 3209 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 35,389 psi | 61% | 3058 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 80% | 33,025 psi | 57% | 3064 fps | 98.7% |
| Vihtavuori N140 | <<locked>> | 80% | 33,794 psi | 58% | 3054 fps | 96.8% |
| Vihtavuori N150 | <<locked>> | 92% | 36,303 psi | 63% | 3127 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 40,669 psi | 70% | 3255 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 80% | 33,489 psi | 58% | 3061 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 43,004 psi | 74% | 3271 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 40,828 psi | 70% | 3304 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,714 psi | 75% | 3343 fps | 96.2% |
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 76 powders for .22-250 Ackley Improved loaded with the .224 | 55gr | MEN SP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,645 fps; across all powders the maximum-charge window runs from 2,254 fps to 3,645 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 76 of the 76 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 1:7.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, 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, Hodgdon LEVERevolution, SNPE Vectan SP 11 rank at the top here: for .22-250 Ackley Improved with the .224 | 55gr | MEN SP 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.