Load Specifications
Load data in caliber .244 H&H Mag. with .243 | 109gr | Berger Long Range Hybrid Target bullet and 42 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Vihtavuori N570 and IMR 8133 Enduron.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 84% | 56,826 psi | 90% | 3064 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 52,895 psi | 84% | 3104 fps | 97.9% |
| Accurate MAGPRO | <<locked>> | 82% | 56,130 psi | 89% | 3182 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 84% | 56,681 psi | 90% | 3179 fps | 100% |
| ADI AR 2217 | <<locked>> | 92% | 56,144 psi | 89% | 3159 fps | 100% |
| ADI AR 2218 | <<locked>> | 96% | 56,942 psi | 90% | 3301 fps | 99.3% |
| ADI AR 2225 | <<locked>> | 94% | 56,202 psi | 89% | 3186 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 53,432 psi | 85% | 3107 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 84% | 55,535 psi | 88% | 3068 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 88% | 56,333 psi | 89% | 3150 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 55,129 psi | 87% | 3202 fps | 98.7% |
| Alliant Reloder-50 | <<locked>> | 96% | 55,172 psi | 87% | 3192 fps | 98.3% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 56,666 psi | 90% | 3133 fps | 99% |
| Bofors RP15 | <<locked>> | 86% | 56,724 psi | 90% | 3163 fps | 100% |
| Bofors RP30 | <<locked>> | 90% | 56,260 psi | 89% | 3173 fps | 100% |
| Bofors RP5 | <<locked>> | 82% | 53,432 psi | 85% | 3107 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 53,664 psi | 85% | 3120 fps | 100% |
| Hodgdon H4831 | <<locked>> | 82% | 55,129 psi | 87% | 3104 fps | 99.8% |
| Hodgdon H4831 SC | <<locked>> | 82% | 54,099 psi | 86% | 3084 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 88% | 56,144 psi | 89% | 3248 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,072 psi | 60% | 2037 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 55,288 psi | 88% | 3077 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 84% | 55,361 psi | 88% | 3163 fps | 100% |
| IMR 8133 Enduron | <<locked>> | 96% | 55,013 psi | 87% | 3169 fps | 100% |
| Lovex S071 | <<locked>> | 88% | 55,535 psi | 88% | 3045 fps | 100% |
| Norma 217 | <<locked>> | 96% | 56,695 psi | 90% | 3196 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 56,753 psi | 90% | 3186 fps | 100% |
| Ramshot Magnum | <<locked>> | 86% | 55,303 psi | 88% | 3107 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,189 psi | 62% | 2087 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 57,087 psi | 90% | 3232 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 56,159 psi | 89% | 3205 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 82% | 57,058 psi | 90% | 3133 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 54,795 psi | 87% | 3117 fps | 97.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 56,695 psi | 90% | 3133 fps | 100% |
| Vihtavuori N165 | <<locked>> | 84% | 53,882 psi | 85% | 3031 fps | 100% |
| Vihtavuori N170 | <<locked>> | 90% | 57,000 psi | 90% | 3127 fps | 97.8% |
| Vihtavuori N560 | <<locked>> | 82% | 56,565 psi | 90% | 3189 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 86% | 54,360 psi | 86% | 3127 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 90% | 56,507 psi | 90% | 3205 fps | 99.6% |
| Vihtavuori N570 | <<locked>> | 90% | 53,983 psi | 86% | 3205 fps | 98.2% |
| Winchester StaBALL HD | <<locked>> | 84% | 56,869 psi | 90% | 3166 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 53,359 psi | 85% | 3038 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 49,676 psi | 79% | 2949 fps | 100% |
| Accurate 8700 | <<locked>> | 94% | 42,322 psi | 67% | 2897 fps | 95% |
| Accurate MAGPRO | <<locked>> | 80% | 52,359 psi | 83% | 3114 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 80% | 49,313 psi | 78% | 3048 fps | 99.6% |
| ADI AR 2217 | <<locked>> | 80% | 36,840 psi | 58% | 2772 fps | 97.4% |
| ADI AR 2218 | 67.3 gr | 88% | 42,293 psi | 67% | 2986 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 80% | 34,287 psi | 54% | 2746 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 50,067 psi | 79% | 3045 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 48,733 psi | 77% | 2959 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 42,815 psi | 68% | 2913 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 86% | 43,990 psi | 70% | 2979 fps | 96% |
| Alliant Reloder-50 | <<locked>> | 90% | 44,295 psi | 70% | 2976 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 46,630 psi | 74% | 2946 fps | 97.2% |
| Bofors RP15 | <<locked>> | 80% | 46,499 psi | 74% | 2976 fps | 99.7% |
| Bofors RP30 | <<locked>> | 80% | 39,987 psi | 63% | 2854 fps | 98.2% |
| Bofors RP5 | <<locked>> | 80% | 50,067 psi | 79% | 3045 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 40,190 psi | 64% | 2854 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 80% | 51,401 psi | 81% | 3035 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 50,676 psi | 80% | 3025 fps | 99.4% |
| Hodgdon Retumbo | <<locked>> | 80% | 42,148 psi | 67% | 2986 fps | 99.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,703 psi | 45% | 1824 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 51,721 psi | 82% | 3015 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 80% | 48,080 psi | 76% | 3028 fps | 99.4% |
| IMR 8133 Enduron | 56.2 gr | 80% | 31,836 psi | 50% | 2654 fps | 95% |
| Lovex S071 | <<locked>> | 80% | 42,917 psi | 68% | 2822 fps | 100% |
| Norma 217 | <<locked>> | 80% | 32,387 psi | 51% | 2684 fps | 97.5% |
| Ramshot Grand | <<locked>> | 80% | 48,863 psi | 77% | 3048 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 80% | 44,121 psi | 70% | 2910 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,370 psi | 47% | 1867 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 41,771 psi | 66% | 2956 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 38,450 psi | 61% | 2841 fps | 96.3% |
| Rottweil R 905 | <<locked>> | 80% | 53,447 psi | 85% | 3077 fps | 100% |
| SNPE Vectan SP 13 | <<locked>> | 94% | 44,570 psi | 71% | 2920 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 53,098 psi | 84% | 3071 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 47,152 psi | 75% | 2917 fps | 99.9% |
| Vihtavuori N170 | <<locked>> | 84% | 46,514 psi | 74% | 2930 fps | 95.3% |
| Vihtavuori N560 | <<locked>> | 80% | 52,765 psi | 84% | 3120 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 80% | 44,382 psi | 70% | 2933 fps | 98.6% |
| Vihtavuori N568 | <<locked>> | 80% | 39,566 psi | 63% | 2861 fps | 96.1% |
| Vihtavuori N570 | 62.9 gr | 84% | 43,482 psi | 69% | 2986 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 48,907 psi | 78% | 3041 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 49,966 psi | 79% | 2979 fps | 99.9% |
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 42 powders for .244 H&H Mag. loaded with the .243 | 109gr | Berger Long Range Hybrid Target. ADI AR 2218 delivers the highest muzzle velocity at 3,301 fps; across all powders the maximum-charge window runs from 2,037 fps to 3,301 fps. Accurate 8700 gives the best case fill at 100 %, and 42 of the 42 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 109.0 gr projectile in 0.243" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, 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. ADI AR 2218, Vihtavuori N570, IMR 8133 Enduron rank at the top here: for .244 H&H Mag. with the .243 | 109gr | Berger Long Range Hybrid Target 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.