Load Specifications
Load data in caliber .22-250 Ackley Improved with .224 | 55gr | Remington PSP bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and ReloadSwiss RS 52.
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% | 52,185 psi | 90% | 3458 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 50,763 psi | 88% | 3461 fps | 99.8% |
| Accurate 2495 | <<locked>> | 90% | 50,357 psi | 87% | 3458 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 50,908 psi | 88% | 3507 fps | 99.7% |
| Accurate 2520 | <<locked>> | 86% | 50,908 psi | 88% | 3507 fps | 99.7% |
| Accurate 4064 | <<locked>> | 92% | 50,299 psi | 87% | 3501 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,777 psi | 86% | 3533 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 88% | 51,677 psi | 89% | 3530 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 92% | 49,472 psi | 85% | 3458 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 50,937 psi | 88% | 3488 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 86% | 50,401 psi | 87% | 3488 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 51,764 psi | 89% | 3606 fps | 98.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 51,097 psi | 88% | 3629 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 52,156 psi | 90% | 3547 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 82% | 51,793 psi | 89% | 3471 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 49,559 psi | 85% | 3501 fps | 97% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,936 psi | 84% | 3543 fps | 96.2% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,705 psi | 86% | 3593 fps | 98.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 51,343 psi | 89% | 3524 fps | 96.8% |
| Bofors RP3 | <<locked>> | 92% | 49,501 psi | 85% | 3501 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 49,545 psi | 85% | 3419 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 86% | 50,024 psi | 86% | 3504 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 84% | 51,430 psi | 89% | 3609 fps | 97.4% |
| Hodgdon H322 | <<locked>> | 84% | 50,285 psi | 87% | 3491 fps | 100% |
| Hodgdon H4895 | <<locked>> | 88% | 52,141 psi | 90% | 3547 fps | 98.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,889 psi | 77% | 3399 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 51,271 psi | 88% | 3573 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,490 psi | 59% | 2290 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 52,286 psi | 90% | 3527 fps | 98.4% |
| IMR 3031 | <<locked>> | 90% | 49,705 psi | 86% | 3524 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 51,184 psi | 88% | 3488 fps | 97.4% |
| IMR 4198 | <<locked>> | 82% | 52,257 psi | 90% | 3448 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 50,792 psi | 88% | 3547 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 86% | 50,937 psi | 88% | 3488 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 82% | 50,807 psi | 88% | 3468 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 88% | 50,908 psi | 88% | 3507 fps | 99.7% |
| Lovex S060 | <<locked>> | 88% | 51,677 psi | 89% | 3455 fps | 97.9% |
| Lovex S062 | <<locked>> | 92% | 51,735 psi | 89% | 3507 fps | 99% |
| Norma 201 | <<locked>> | 88% | 50,386 psi | 87% | 3471 fps | 98.7% |
| Norma 202 | <<locked>> | 88% | 50,763 psi | 88% | 3491 fps | 99.9% |
| Norma 203B | <<locked>> | 92% | 51,982 psi | 90% | 3553 fps | 98% |
| Norma URPᴾ | <<locked>> | 100% | 49,516 psi | 85% | 3527 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 90% | 49,081 psi | 85% | 3504 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 50,720 psi | 87% | 3507 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 52,141 psi | 90% | 3478 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,896 psi | 60% | 2343 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 50,299 psi | 87% | 3474 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 49,313 psi | 85% | 3573 fps | 96.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 49,327 psi | 85% | 3609 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 86% | 51,314 psi | 88% | 3478 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 90% | 50,937 psi | 88% | 3471 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 94% | 48,907 psi | 84% | 3478 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 88% | 50,908 psi | 88% | 3507 fps | 99.7% |
| Shooters World Precision | <<locked>> | 92% | 51,735 psi | 89% | 3507 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 50,966 psi | 88% | 3547 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 50,314 psi | 87% | 3488 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 52,098 psi | 90% | 3432 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 52,402 psi | 90% | 3425 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 52,141 psi | 90% | 3524 fps | 99.1% |
| Somchem S335 | <<locked>> | 88% | 51,517 psi | 89% | 3425 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 52,460 psi | 90% | 3507 fps | 98% |
| Somchem S355 | <<locked>> | 94% | 49,690 psi | 86% | 3481 fps | 98% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,048 psi | 76% | 3455 fps | 98.2% |
| Vihtavuori N130 | <<locked>> | 84% | 50,807 psi | 88% | 3396 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 51,576 psi | 89% | 3422 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 49,966 psi | 86% | 3458 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 50,546 psi | 87% | 3451 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,995 psi | 88% | 3471 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 98% | 51,097 psi | 88% | 3507 fps | 96.4% |
| Vihtavuori N530 | <<locked>> | 84% | 50,212 psi | 87% | 3488 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 90% | 50,415 psi | 87% | 3474 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 98% | 51,619 psi | 89% | 3566 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 50,096 psi | 86% | 3451 fps | 98.4% |
| Winchester 748 | <<locked>> | 84% | 51,416 psi | 89% | 3547 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 82% | 51,271 psi | 88% | 3520 fps | 98.4% |
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% | 43,250 psi | 75% | 3281 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,616 psi | 82% | 3399 fps | 99.6% |
| Accurate 2495 | <<locked>> | 80% | 35,839 psi | 62% | 3146 fps | 99.6% |
| Accurate 2520 | <<locked>> | 80% | 41,075 psi | 71% | 3297 fps | 98.3% |
| Accurate 2520 | <<locked>> | 80% | 41,075 psi | 71% | 3297 fps | 98.3% |
| Accurate 4064 | <<locked>> | 80% | 33,866 psi | 58% | 3110 fps | 97.3% |
| Accurate 4350 | <<locked>> | 98% | 46,398 psi | 80% | 3461 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 82% | 42,409 psi | 73% | 3323 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 88% | 43,598 psi | 75% | 3323 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,785 psi | 72% | 3284 fps | 96.8% |
| Alliant AR-Comp | <<locked>> | 80% | 40,828 psi | 70% | 3307 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,443 psi | 84% | 3537 fps | 97.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 44,570 psi | 77% | 3474 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 37,782 psi | 65% | 3219 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,936 psi | 84% | 3422 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,613 psi | 75% | 3366 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 98% | 45,919 psi | 79% | 3474 fps | 95.3% |
| Alliant Reloder-17 | 38.7 gr | 90% | 40,292 psi | 69% | 3360 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 44,918 psi | 77% | 3386 fps | 95.1% |
| Bofors RP3 | <<locked>> | 84% | 37,246 psi | 64% | 3209 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,729 psi | 75% | 3287 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,524 psi | 70% | 3294 fps | 97.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,382 psi | 77% | 3451 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 44,411 psi | 77% | 3366 fps | 99.7% |
| Hodgdon H4895 | <<locked>> | 80% | 40,103 psi | 69% | 3271 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 39,363 psi | 68% | 3264 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 38,928 psi | 67% | 3287 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,744 psi | 44% | 2060 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 40,524 psi | 70% | 3264 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 35,752 psi | 62% | 3209 fps | 98.9% |
| IMR 4064 | <<locked>> | 88% | 42,598 psi | 73% | 3297 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 48,907 psi | 84% | 3386 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 41,887 psi | 72% | 3343 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 41,785 psi | 72% | 3284 fps | 96.8% |
| Lovex D073.5 | <<locked>> | 80% | 47,297 psi | 82% | 3396 fps | 98.9% |
| Lovex D073.6 | <<locked>> | 80% | 38,406 psi | 66% | 3232 fps | 97.6% |
| Lovex S060 | <<locked>> | 80% | 40,248 psi | 69% | 3199 fps | 95% |
| Lovex S062 | <<locked>> | 82% | 37,521 psi | 65% | 3182 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 38,986 psi | 67% | 3212 fps | 96.1% |
| Norma 202 | <<locked>> | 80% | 39,160 psi | 68% | 3235 fps | 98.4% |
| Norma 203B | <<locked>> | 86% | 42,917 psi | 74% | 3353 fps | 95.8% |
| Norma URP | <<locked>> | 98% | 46,340 psi | 80% | 3461 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 86% | 42,859 psi | 74% | 3363 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,292 psi | 71% | 3294 fps | 95.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,440 psi | 78% | 3340 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,889 psi | 45% | 2106 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,224 psi | 81% | 3409 fps | 99.1% |
| ReloadSwiss RS 52 | 36.4 gr | 86% | 45,643 psi | 79% | 3491 fps | 95.9% |
| ReloadSwiss RS 60 | 36.1 gr | 84% | 34,954 psi | 60% | 3222 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 42,815 psi | 74% | 3294 fps | 98.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,956 psi | 64% | 3146 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 88% | 40,030 psi | 69% | 3274 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,406 psi | 66% | 3232 fps | 97.6% |
| Shooters World Precision | <<locked>> | 82% | 37,521 psi | 65% | 3182 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 41,684 psi | 72% | 3343 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 41,046 psi | 71% | 3278 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,422 psi | 70% | 3189 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,257 psi | 57% | 3005 fps | 97.8% |
| Somchem S321 | <<locked>> | 80% | 45,281 psi | 78% | 3379 fps | 98% |
| Somchem S335 | <<locked>> | 80% | 40,132 psi | 69% | 3189 fps | 99.2% |
| Somchem S341 | <<locked>> | 82% | 42,641 psi | 74% | 3301 fps | 95.6% |
| Somchem S355 | <<locked>> | 88% | 40,988 psi | 71% | 3287 fps | 95.8% |
| Somchem S365 | <<locked>> | 94% | 36,172 psi | 62% | 3245 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 45,034 psi | 78% | 3287 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,826 psi | 65% | 3136 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 35,882 psi | 62% | 3150 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 36,550 psi | 63% | 3143 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 88% | 34,853 psi | 60% | 3100 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 96% | 47,877 psi | 83% | 3442 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 44,005 psi | 76% | 3353 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 80% | 36,347 psi | 63% | 3156 fps | 97.6% |
| Vihtavuori N550 | <<locked>> | 96% | 48,037 psi | 83% | 3494 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 40,596 psi | 70% | 3235 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 44,396 psi | 77% | 3399 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,703 psi | 82% | 3448 fps | 97.7% |
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 101 powders for .22-250 Ackley Improved loaded with the .224 | 55gr | Remington PSP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,629 fps; across all powders the maximum-charge window runs from 2,290 fps to 3,629 fps. Accurate 4350 gives the best case fill at 100 %, and 101 of the 101 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 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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, Alliant Reloder-17, ReloadSwiss RS 52 rank at the top here: for .22-250 Ackley Improved with the .224 | 55gr | Remington PSP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.