Load Specifications
Load data in caliber .22-250 Ackley Improved with .224 | 77gr | Berger LTB bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and ReloadSwiss RS 60.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 50,009 psi | 86% | 2963 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,164 psi | 76% | 2949 fps | 96.3% |
| Accurate 4064 | <<locked>> | 86% | 50,024 psi | 86% | 3009 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 49,850 psi | 86% | 3087 fps | 99% |
| ADI AR 2206H | <<locked>> | 82% | 50,096 psi | 86% | 3035 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 88% | 51,213 psi | 88% | 3035 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 52,286 psi | 90% | 3041 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 49,255 psi | 85% | 3143 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 51,169 psi | 88% | 3061 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 86% | 51,619 psi | 89% | 3081 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 96% | 51,155 psi | 88% | 3153 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 92% | 51,866 psi | 89% | 3182 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,626 psi | 72% | 2972 fps | 99% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,036 psi | 81% | 3156 fps | 98.5% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 49,748 psi | 86% | 3041 fps | 99% |
| Bofors RP3 | <<locked>> | 88% | 51,605 psi | 89% | 3071 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 52,112 psi | 90% | 3045 fps | 96.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 51,547 psi | 89% | 3061 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 49,095 psi | 85% | 3022 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 90% | 50,227 psi | 87% | 3097 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 82% | 50,604 psi | 87% | 3048 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 50,923 psi | 88% | 3074 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 50,082 psi | 86% | 3077 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 92% | 49,095 psi | 85% | 3100 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,810 psi | 62% | 1946 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 50,560 psi | 87% | 3028 fps | 99.8% |
| IMR 3031 | <<locked>> | 84% | 49,472 psi | 85% | 3018 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 49,966 psi | 86% | 3009 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 88% | 49,661 psi | 86% | 2976 fps | 96.5% |
| IMR 4350 | <<locked>> | 96% | 52,185 psi | 90% | 3064 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 50,343 psi | 87% | 3015 fps | 96.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,894 psi | 88% | 3087 fps | 99.2% |
| IMR 4895 | <<locked>> | 84% | 49,501 psi | 85% | 3051 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 82% | 52,286 psi | 90% | 3041 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 49,559 psi | 85% | 3005 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 49,443 psi | 85% | 2959 fps | 99.6% |
| Lovex S062 | <<locked>> | 86% | 50,502 psi | 87% | 3015 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 49,908 psi | 86% | 3012 fps | 97.9% |
| Lovex S070 | <<locked>> | 94% | 51,024 psi | 88% | 3051 fps | 97.1% |
| Norma 201 | <<locked>> | 84% | 52,330 psi | 90% | 3038 fps | 100% |
| Norma 202 | <<locked>> | 82% | 49,516 psi | 85% | 2986 fps | 100% |
| Norma 203B | <<locked>> | 86% | 50,894 psi | 88% | 3064 fps | 99.7% |
| Norma URP | <<locked>> | 96% | 52,199 psi | 90% | 3127 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 86% | 51,561 psi | 89% | 3094 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 96% | 51,053 psi | 88% | 3120 fps | 97.8% |
| Ramshot TAC | <<locked>> | 82% | 52,228 psi | 90% | 3048 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 52,011 psi | 90% | 3068 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,129 psi | 62% | 1988 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 49,371 psi | 85% | 3002 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 51,967 psi | 90% | 3146 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 51,590 psi | 89% | 3186 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 49,574 psi | 85% | 3104 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 52,344 psi | 90% | 3189 fps | 99% |
| Rottweil R 902 | <<locked>> | 84% | 49,545 psi | 85% | 2982 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 90% | 51,866 psi | 89% | 3071 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 92% | 52,112 psi | 90% | 3045 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 92% | 49,908 psi | 86% | 3012 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 49,559 psi | 85% | 3005 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 50,502 psi | 87% | 3015 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 51,024 psi | 88% | 3051 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 50,082 psi | 86% | 3074 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 51,053 psi | 88% | 3028 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 51,808 psi | 89% | 3058 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 50,227 psi | 87% | 2923 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 50,357 psi | 87% | 2920 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 50,053 psi | 86% | 2959 fps | 96.6% |
| Somchem S335 | <<locked>> | 82% | 49,777 psi | 86% | 2920 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 50,662 psi | 87% | 3022 fps | 99.6% |
| Somchem S355 | <<locked>> | 90% | 52,083 psi | 90% | 3068 fps | 99.9% |
| Somchem S365 | <<locked>> | 98% | 50,575 psi | 87% | 3136 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,285 psi | 87% | 3061 fps | 96.1% |
| Unknown powder | <<locked>> | 92% | 49,864 psi | 86% | 3077 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 84% | 50,009 psi | 86% | 2907 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 52,373 psi | 90% | 2999 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 49,139 psi | 85% | 2953 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 50,067 psi | 86% | 2995 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 50,183 psi | 87% | 3048 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 86% | 52,315 psi | 90% | 3035 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 50,850 psi | 88% | 3104 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,079 psi | 79% | 3058 fps | 98.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 51,358 psi | 89% | 3045 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 50,227 psi | 87% | 3097 fps | 96.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,449 psi | 65% | 2982 fps | 99% |
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 2495 | <<locked>> | 80% | 43,845 psi | 76% | 2861 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 41,060 psi | 71% | 2884 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 41,423 psi | 71% | 2854 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 34,882 psi | 60% | 2766 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 46,818 psi | 81% | 2972 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 39,784 psi | 69% | 2805 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,921 psi | 84% | 2982 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,888 psi | 74% | 3009 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,639 psi | 68% | 2831 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,511 psi | 73% | 2904 fps | 98.2% |
| Alliant Reloder-16 | 31.2 gr | 84% | 34,954 psi | 60% | 2782 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,374 psi | 59% | 2795 fps | 97% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,487 psi | 53% | 2677 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 94% | 38,072 psi | 66% | 2943 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,180 psi | 80% | 2972 fps | 98.5% |
| Bofors RP3 | <<locked>> | 80% | 39,697 psi | 68% | 2841 fps | 98.8% |
| Bofors RP7 | <<locked>> | 90% | 48,718 psi | 84% | 2982 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,211 psi | 83% | 3005 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,321 psi | 70% | 2841 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 86% | 43,816 psi | 76% | 2969 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 47,311 psi | 82% | 2986 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 30,284 psi | 52% | 2618 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,075 psi | 71% | 2900 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 90% | 45,876 psi | 79% | 3031 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,600 psi | 46% | 1739 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,003 psi | 72% | 2864 fps | 98.9% |
| IMR 3031 | <<locked>> | 80% | 43,192 psi | 74% | 2907 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,015 psi | 67% | 2782 fps | 97.4% |
| IMR 4166 Enduron | <<locked>> | 84% | 43,874 psi | 76% | 2858 fps | 95% |
| IMR 4350 | <<locked>> | 92% | 46,050 psi | 79% | 2949 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 86% | 44,498 psi | 77% | 2900 fps | 95.1% |
| IMR 4831 | <<locked>> | 88% | 35,012 psi | 60% | 2753 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 43,569 psi | 75% | 2936 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 48,921 psi | 84% | 2982 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 46,615 psi | 80% | 2956 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,688 psi | 81% | 2907 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 41,916 psi | 72% | 2851 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 39,218 psi | 68% | 2789 fps | 95.1% |
| Lovex S070 | <<locked>> | 90% | 45,034 psi | 78% | 2936 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 46,122 psi | 80% | 2927 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 46,238 psi | 80% | 2927 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,887 psi | 72% | 2887 fps | 98.5% |
| Norma URP | <<locked>> | 84% | 35,215 psi | 61% | 2772 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 41,669 psi | 72% | 2904 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 42,090 psi | 73% | 2940 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 48,979 psi | 84% | 2989 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,675 psi | 84% | 3012 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,963 psi | 46% | 1781 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 43,207 psi | 75% | 2881 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,107 psi | 78% | 3018 fps | 98.6% |
| ReloadSwiss RS 60 | 32 gr | 80% | 36,579 psi | 63% | 2871 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 37,391 psi | 64% | 2848 fps | 95.7% |
| ReloadSwiss RS 70 | 35.8 gr | 88% | 39,885 psi | 69% | 2923 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 43,656 psi | 75% | 2867 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 37,217 psi | 64% | 2779 fps | 98% |
| Rottweil R 907 | <<locked>> | 90% | 48,718 psi | 84% | 2982 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,218 psi | 68% | 2789 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,615 psi | 80% | 2956 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,916 psi | 72% | 2851 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 45,034 psi | 78% | 2936 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,116 psi | 66% | 2828 fps | 97.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,297 psi | 82% | 2959 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,382 psi | 78% | 2940 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,268 psi | 82% | 2874 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,537 psi | 68% | 2726 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 43,656 psi | 75% | 2838 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 46,992 psi | 81% | 2874 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,007 psi | 81% | 2956 fps | 99.3% |
| Somchem S355 | <<locked>> | 80% | 38,043 psi | 66% | 2785 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 27,775 psi | 48% | 2598 fps | 95.6% |
| Somchem S385 | <<locked>> | 98% | 46,934 psi | 81% | 2999 fps | 95.2% |
| Unknown powder | <<locked>> | 84% | 38,087 psi | 66% | 2831 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 44,324 psi | 76% | 2812 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,526 psi | 75% | 2854 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,236 psi | 75% | 2848 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,387 psi | 56% | 2625 fps | 97.7% |
| Vihtavuori N160 | <<locked>> | 82% | 35,708 psi | 62% | 2746 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 43,192 psi | 74% | 2871 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 36,463 psi | 63% | 2795 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 90% | 33,098 psi | 57% | 2762 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,865 psi | 55% | 2625 fps | 96.2% |
| Winchester 760 | <<locked>> | 86% | 43,816 psi | 76% | 2969 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 94% | 30,661 psi | 53% | 2759 fps | 95.7% |
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 83 powders for .22-250 Ackley Improved loaded with the .224 | 77gr | Berger LTB. ReloadSwiss RS 70 delivers the highest muzzle velocity at 3,189 fps; across all powders the maximum-charge window runs from 1,946 fps to 3,189 fps. Accurate 3100 gives the best case fill at 100 %, and 83 of the 83 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (400 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 77.0 gr projectile in 0.224" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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. Alliant Reloder-16, ReloadSwiss RS 70, ReloadSwiss RS 60 rank at the top here: for .22-250 Ackley Improved with the .224 | 77gr | Berger LTB 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.