Load Specifications
Load data in caliber .22-250 Ackley Improved with .224 | 54gr | TWENTY-NINE Classic 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, IMR 4895 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>> | 86% | 49,269 psi | 85% | 3419 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 50,923 psi | 88% | 3478 fps | 99.6% |
| Accurate 2495 | <<locked>> | 92% | 49,908 psi | 86% | 3474 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 49,110 psi | 85% | 3478 fps | 99.3% |
| Accurate 4064 | <<locked>> | 94% | 49,966 psi | 86% | 3510 fps | 99.8% |
| Accurate LT-30 | <<locked>> | 82% | 52,185 psi | 90% | 3422 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 51,677 psi | 89% | 3543 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 94% | 49,588 psi | 86% | 3471 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 88% | 51,285 psi | 88% | 3504 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 88% | 50,212 psi | 87% | 3510 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 52,098 psi | 90% | 3629 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 51,503 psi | 89% | 3642 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 52,243 psi | 90% | 3563 fps | 98.4% |
| Alliant Reloder-10x | <<locked>> | 84% | 52,112 psi | 90% | 3497 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 49,530 psi | 85% | 3514 fps | 96.4% |
| Alliant Reloder-17 | <<locked>> | 98% | 49,371 psi | 85% | 3593 fps | 97.5% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 51,517 psi | 89% | 3396 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 51,590 psi | 89% | 3540 fps | 96.3% |
| Bofors RP3 | <<locked>> | 94% | 48,979 psi | 84% | 3504 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 86% | 50,227 psi | 87% | 3442 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 88% | 49,937 psi | 86% | 3520 fps | 98.7% |
| Hodgdon CFE223 | <<locked>> | 86% | 51,329 psi | 89% | 3619 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 84% | 51,213 psi | 88% | 3524 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 49,197 psi | 85% | 3478 fps | 99.6% |
| Hodgdon H4895 | <<locked>> | 90% | 52,083 psi | 90% | 3556 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 50,879 psi | 88% | 3576 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,243 psi | 59% | 2287 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 50,314 psi | 87% | 3501 fps | 97.6% |
| IMR 3031 | <<locked>> | 90% | 50,865 psi | 88% | 3566 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 52,156 psi | 90% | 3517 fps | 97.1% |
| IMR 4198 | <<locked>> | 82% | 49,487 psi | 85% | 3412 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 50,749 psi | 88% | 3556 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 88% | 51,285 psi | 88% | 3504 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 84% | 51,126 psi | 88% | 3484 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 90% | 50,734 psi | 87% | 3520 fps | 99.5% |
| Lovex S060 | <<locked>> | 90% | 52,170 psi | 90% | 3474 fps | 97.6% |
| Lovex S062 | <<locked>> | 94% | 51,692 psi | 89% | 3520 fps | 98.6% |
| Norma 201 | <<locked>> | 90% | 50,691 psi | 87% | 3491 fps | 98.4% |
| Norma 202 | <<locked>> | 90% | 51,053 psi | 88% | 3510 fps | 99.8% |
| Norma 203B | <<locked>> | 94% | 52,083 psi | 90% | 3566 fps | 97.6% |
| Ramshot Big Game | <<locked>> | 92% | 49,255 psi | 85% | 3517 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 50,821 psi | 88% | 3520 fps | 97.2% |
| Ramshot X-Terminator | <<locked>> | 86% | 52,373 psi | 90% | 3494 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,272 psi | 59% | 2333 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 50,546 psi | 87% | 3491 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 48,979 psi | 84% | 3579 fps | 96.2% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 49,298 psi | 85% | 3615 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 88% | 51,372 psi | 89% | 3491 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 92% | 50,821 psi | 88% | 3481 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 98% | 51,909 psi | 90% | 3550 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 90% | 50,734 psi | 87% | 3520 fps | 99.5% |
| Shooters World Precision | <<locked>> | 94% | 51,692 psi | 89% | 3520 fps | 98.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 50,502 psi | 87% | 3445 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 50,734 psi | 87% | 3556 fps | 97.2% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 49,879 psi | 86% | 3465 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 50,430 psi | 87% | 3501 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 49,472 psi | 85% | 3396 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 52,199 psi | 90% | 3435 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 52,228 psi | 90% | 3537 fps | 98.8% |
| Somchem S335 | <<locked>> | 90% | 51,909 psi | 90% | 3448 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 49,342 psi | 85% | 3458 fps | 96.8% |
| Somchem S355 | <<locked>> | 96% | 49,690 psi | 86% | 3497 fps | 97.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,640 psi | 70% | 3379 fps | 96.6% |
| Vihtavuori N130 | <<locked>> | 86% | 52,156 psi | 90% | 3432 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 52,388 psi | 90% | 3445 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 49,951 psi | 86% | 3474 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 51,271 psi | 88% | 3478 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 98% | 50,894 psi | 88% | 3478 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 88% | 51,445 psi | 89% | 3501 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 92% | 49,908 psi | 86% | 3465 fps | 99.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,922 psi | 86% | 3451 fps | 97.8% |
| Winchester 748 | <<locked>> | 88% | 50,865 psi | 88% | 3550 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 90% | 49,719 psi | 86% | 3501 fps | 97.6% |
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% | 40,814 psi | 70% | 3245 fps | 99.8% |
| Accurate 2460 | <<locked>> | 80% | 44,498 psi | 77% | 3350 fps | 98.9% |
| Accurate 2495 | <<locked>> | 80% | 33,127 psi | 57% | 3094 fps | 98.8% |
| Accurate 2520 | <<locked>> | 80% | 39,595 psi | 68% | 3268 fps | 97.5% |
| Accurate 4064 | <<locked>> | 80% | 31,256 psi | 54% | 3051 fps | 95.8% |
| Accurate LT-30 | <<locked>> | 80% | 49,226 psi | 85% | 3366 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 42,728 psi | 74% | 3343 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 92% | 46,833 psi | 81% | 3409 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,349 psi | 68% | 3235 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 38,058 psi | 66% | 3268 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,339 psi | 78% | 3481 fps | 96.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 47,732 psi | 82% | 3560 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 40,205 psi | 69% | 3297 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 45,818 psi | 79% | 3379 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 46,325 psi | 80% | 3442 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 94% | 43,207 psi | 75% | 3445 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,385 psi | 83% | 3340 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 48,312 psi | 83% | 3474 fps | 95.5% |
| Bofors RP3 | <<locked>> | 88% | 39,711 psi | 68% | 3291 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,336 psi | 71% | 3245 fps | 96.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,768 psi | 65% | 3235 fps | 95.7% |
| Hodgdon CFE223 | <<locked>> | 84% | 47,921 psi | 83% | 3547 fps | 96% |
| Hodgdon H322 | <<locked>> | 80% | 44,947 psi | 78% | 3396 fps | 99.6% |
| Hodgdon H335 | <<locked>> | 80% | 46,006 psi | 79% | 3409 fps | 99.3% |
| Hodgdon H4895 | <<locked>> | 82% | 40,219 psi | 69% | 3287 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 38,899 psi | 67% | 3297 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,469 psi | 44% | 2054 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 41,495 psi | 72% | 3301 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 36,434 psi | 63% | 3245 fps | 98.8% |
| IMR 4064 | <<locked>> | 90% | 46,021 psi | 79% | 3389 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 46,572 psi | 80% | 3356 fps | 100% |
| IMR 4895 | 34.5 gr | 88% | 44,744 psi | 77% | 3425 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 39,349 psi | 68% | 3235 fps | 95.5% |
| Lovex D073.5 | <<locked>> | 80% | 44,324 psi | 76% | 3343 fps | 97.9% |
| Lovex D073.6 | <<locked>> | 80% | 35,824 psi | 62% | 3176 fps | 96.3% |
| Lovex S060 | <<locked>> | 84% | 43,308 psi | 75% | 3281 fps | 95.4% |
| Lovex S062 | <<locked>> | 84% | 37,594 psi | 65% | 3196 fps | 95% |
| Norma 201 | <<locked>> | 82% | 39,088 psi | 67% | 3225 fps | 95.5% |
| Norma 202 | <<locked>> | 80% | 36,622 psi | 63% | 3182 fps | 97.3% |
| Norma 203B | <<locked>> | 88% | 42,960 psi | 74% | 3366 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 90% | 45,658 psi | 79% | 3442 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 44,164 psi | 76% | 3376 fps | 95.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 42,873 psi | 74% | 3287 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,585 psi | 44% | 2103 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,193 psi | 76% | 3356 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 45,672 psi | 79% | 3504 fps | 95.3% |
| ReloadSwiss RS 60 | 35.3 gr | 86% | 35,085 psi | 61% | 3232 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 40,408 psi | 70% | 3251 fps | 98% |
| Rottweil R 902 | <<locked>> | 84% | 39,552 psi | 68% | 3228 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 90% | 39,958 psi | 69% | 3287 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,824 psi | 62% | 3176 fps | 96.3% |
| Shooters World Precision | <<locked>> | 84% | 37,594 psi | 65% | 3196 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,195 psi | 81% | 3379 fps | 97.3% |
| SNPE Vectan SP 11 | 37.2 gr | 92% | 44,411 psi | 77% | 3419 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 46,543 psi | 80% | 3399 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 44,193 psi | 76% | 3366 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,203 psi | 66% | 3143 fps | 97.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,299 psi | 54% | 2959 fps | 96.6% |
| Somchem S321 | <<locked>> | 80% | 42,467 psi | 73% | 3327 fps | 96.9% |
| Somchem S335 | <<locked>> | 80% | 37,739 psi | 65% | 3140 fps | 98.4% |
| Somchem S341 | <<locked>> | 84% | 42,801 psi | 74% | 3314 fps | 95% |
| Somchem S355 | <<locked>> | 90% | 40,959 psi | 71% | 3301 fps | 95.2% |
| Somchem S365 | <<locked>> | 98% | 38,290 psi | 66% | 3314 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 43,352 psi | 75% | 3264 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,261 psi | 66% | 3156 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 80% | 33,446 psi | 58% | 3104 fps | 98.8% |
| Vihtavuori N140 | <<locked>> | 80% | 34,708 psi | 60% | 3104 fps | 97.1% |
| Vihtavuori N150 | <<locked>> | 88% | 36,622 psi | 63% | 3156 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 39,465 psi | 68% | 3232 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 33,460 psi | 58% | 3074 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 40,727 psi | 70% | 3245 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 38,348 psi | 66% | 3264 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 84% | 40,625 psi | 70% | 3297 fps | 95.2% |
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 73 powders for .22-250 Ackley Improved loaded with the .224 | 54gr | TWENTY-NINE Classic. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,642 fps; across all powders the maximum-charge window runs from 2,287 fps to 3,642 fps. Hodgdon TrailBoss 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 54.0 gr projectile in 0.224" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 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, IMR 4895, SNPE Vectan SP 11 rank at the top here: for .22-250 Ackley Improved with the .224 | 54gr | TWENTY-NINE Classic 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.