Load Specifications
Load data in caliber .244 H&H Mag. with .243 | 62gr | Lehigh Defense Controlled Chaos bullet and 65 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and IMR 7828 SSC.
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>> | 94% | 55,840 psi | 89% | 3760 fps | 99.5% |
| Accurate 4350 | <<locked>> | 86% | 56,362 psi | 89% | 3825 fps | 100% |
| ADI AR 2208 | <<locked>> | 82% | 56,855 psi | 90% | 3806 fps | 100% |
| ADI AR 2209 | <<locked>> | 90% | 53,795 psi | 85% | 3802 fps | 97.3% |
| ADI AR 2213 | <<locked>> | 94% | 55,753 psi | 88% | 3865 fps | 96.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,962 psi | 71% | 3642 fps | 97.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,214 psi | 84% | 3829 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,520 psi | 86% | 3845 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 57,087 psi | 90% | 3858 fps | 98.1% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,854 psi | 89% | 3862 fps | 98% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,782 psi | 90% | 3848 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 56,681 psi | 90% | 3904 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 53,592 psi | 85% | 3862 fps | 99.9% |
| Bofors RP15 | <<locked>> | 96% | 54,781 psi | 87% | 3835 fps | 97.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 52,678 psi | 83% | 3802 fps | 96.6% |
| Bofors RP5 | <<locked>> | 94% | 55,854 psi | 89% | 3862 fps | 98% |
| Bofors RP7 | <<locked>> | 84% | 54,882 psi | 87% | 3763 fps | 98.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 55,753 psi | 88% | 3842 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 84% | 54,201 psi | 86% | 3809 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 84% | 56,768 psi | 90% | 3835 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,867 psi | 85% | 3740 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 55,492 psi | 88% | 3967 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 84% | 55,376 psi | 88% | 3839 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,767 psi | 58% | 2595 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,710 psi | 90% | 3799 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,362 psi | 89% | 3796 fps | 98.9% |
| IMR 4831 | <<locked>> | 88% | 56,884 psi | 90% | 3816 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,449 psi | 89% | 3786 fps | 96.4% |
| IMR 7828 SSC | <<locked>> | 94% | 53,417 psi | 85% | 3829 fps | 96.2% |
| Lovex S065 | <<locked>> | 86% | 57,014 psi | 90% | 3796 fps | 99.7% |
| Lovex S070 | <<locked>> | 86% | 55,259 psi | 88% | 3776 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,942 psi | 90% | 3780 fps | 99.6% |
| Norma 204 | <<locked>> | 86% | 54,331 psi | 86% | 3789 fps | 97.3% |
| Norma MRP | <<locked>> | 92% | 55,825 psi | 88% | 3888 fps | 99% |
| Norma URP | <<locked>> | 86% | 54,650 psi | 87% | 3806 fps | 99.9% |
| Ramshot Grand | <<locked>> | 94% | 54,157 psi | 86% | 3845 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 86% | 53,896 psi | 85% | 3789 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 96% | 53,127 psi | 84% | 3766 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,550 psi | 60% | 2654 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,666 psi | 90% | 3842 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 55,056 psi | 87% | 3871 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 53,258 psi | 84% | 3881 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 82% | 56,086 psi | 89% | 3783 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,839 psi | 87% | 3766 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 92% | 56,507 psi | 90% | 3845 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 84% | 54,882 psi | 87% | 3763 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,014 psi | 90% | 3796 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 86% | 55,259 psi | 88% | 3776 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,767 psi | 88% | 3645 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,434 psi | 89% | 3727 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 56,101 psi | 89% | 3839 fps | 98% |
| Somchem S355 | <<locked>> | 82% | 55,564 psi | 88% | 3773 fps | 100% |
| Somchem S365 | <<locked>> | 88% | 55,245 psi | 88% | 3809 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 53,577 psi | 85% | 3737 fps | 98.2% |
| Vihtavuori N150 | <<locked>> | 84% | 57,000 psi | 90% | 3737 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,507 psi | 90% | 3799 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 53,258 psi | 84% | 3707 fps | 97.9% |
| Vihtavuori N550 | <<locked>> | 86% | 55,999 psi | 89% | 3796 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 92% | 55,158 psi | 87% | 3819 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 55,492 psi | 88% | 3871 fps | 96.1% |
| Vihtavuori N565 | <<locked>> | 98% | 55,840 psi | 89% | 3839 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,594 psi | 90% | 3737 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,447 psi | 86% | 3816 fps | 98.7% |
| Winchester StaBALL HD | <<locked>> | 96% | 55,376 psi | 88% | 3930 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 53,650 psi | 85% | 3724 fps | 97.4% |
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>> | 84% | 39,117 psi | 62% | 3386 fps | 95.9% |
| Accurate 4350 | <<locked>> | 80% | 45,527 psi | 72% | 3602 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 80% | 53,142 psi | 84% | 3730 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 86% | 46,847 psi | 74% | 3645 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 92% | 51,895 psi | 82% | 3786 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 96% | 39,276 psi | 62% | 3478 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,207 psi | 68% | 3606 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,720 psi | 80% | 3773 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 46,630 psi | 74% | 3632 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 88% | 45,136 psi | 72% | 3622 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,416 psi | 51% | 3268 fps | 96.9% |
| Alliant Reloder-25 | <<locked>> | 88% | 37,260 psi | 59% | 3435 fps | 96% |
| Alliant Reloder-26 | 63.5 gr | 80% | 35,926 psi | 57% | 3425 fps | 96% |
| Bofors RP15 | <<locked>> | 92% | 47,790 psi | 76% | 3681 fps | 95.8% |
| Bofors RP30 | <<locked>> | 98% | 49,240 psi | 78% | 3724 fps | 95.6% |
| Bofors RP5 | <<locked>> | 88% | 45,136 psi | 72% | 3622 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 48,138 psi | 76% | 3615 fps | 97% |
| Hodgdon H1000 | <<locked>> | 96% | 48,167 psi | 76% | 3671 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 47,166 psi | 75% | 3655 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 80% | 49,588 psi | 79% | 3684 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,741 psi | 65% | 3458 fps | 99.2% |
| Hodgdon Retumbo | <<locked>> | 94% | 44,976 psi | 71% | 3711 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 47,355 psi | 75% | 3668 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,412 psi | 43% | 2339 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,497 psi | 69% | 3507 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,545 psi | 79% | 3652 fps | 97.7% |
| IMR 4831 | <<locked>> | 80% | 43,236 psi | 69% | 3530 fps | 98.6% |
| IMR 4955 Enduron | <<locked>> | 90% | 52,765 psi | 84% | 3707 fps | 95.4% |
| IMR 7828 SSC | 68.2 gr | 92% | 49,647 psi | 79% | 3740 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 47,036 psi | 75% | 3586 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 45,324 psi | 72% | 3560 fps | 97% |
| Lovex S071 | <<locked>> | 88% | 37,971 psi | 60% | 3353 fps | 95.4% |
| Norma 204 | <<locked>> | 82% | 47,007 psi | 75% | 3625 fps | 95.4% |
| Norma MRP | <<locked>> | 84% | 41,263 psi | 65% | 3550 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 44,469 psi | 70% | 3583 fps | 98.7% |
| Ramshot Grand | <<locked>> | 92% | 50,198 psi | 80% | 3760 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 43,613 psi | 69% | 3560 fps | 97.1% |
| Ramshot Magnum | <<locked>> | 90% | 41,829 psi | 66% | 3504 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,992 psi | 44% | 2395 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,658 psi | 72% | 3615 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,903 psi | 70% | 3622 fps | 98.4% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 42,119 psi | 67% | 3602 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 52,330 psi | 83% | 3711 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 51,445 psi | 82% | 3694 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 86% | 45,876 psi | 73% | 3612 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 48,138 psi | 76% | 3615 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,036 psi | 75% | 3586 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 80% | 45,324 psi | 72% | 3560 fps | 97% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,315 psi | 83% | 3586 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,166 psi | 73% | 3514 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 45,498 psi | 72% | 3602 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 52,170 psi | 83% | 3707 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 41,379 psi | 66% | 3520 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 43,540 psi | 69% | 3510 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 49,937 psi | 79% | 3609 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,050 psi | 73% | 3583 fps | 99% |
| Vihtavuori N165 | <<locked>> | 88% | 43,352 psi | 69% | 3484 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 45,658 psi | 72% | 3583 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 80% | 36,289 psi | 58% | 3373 fps | 97% |
| Vihtavuori N560 | <<locked>> | 90% | 51,459 psi | 82% | 3783 fps | 95% |
| Vihtavuori N565 | <<locked>> | 96% | 52,011 psi | 82% | 3757 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,672 psi | 72% | 3530 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,413 psi | 75% | 3658 fps | 97.3% |
| Winchester StaBALL HD | 61 gr | 80% | 28,979 psi | 46% | 3232 fps | 96.1% |
| Winchester Supreme 780 | <<locked>> | 88% | 46,441 psi | 74% | 3570 fps | 95.5% |
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 .244 H&H Mag. loaded with the .243 | 62gr | Lehigh Defense Controlled Chaos. Hodgdon Retumbo delivers the highest muzzle velocity at 3,967 fps; across all powders the maximum-charge window runs from 2,595 fps to 3,967 fps. ADI AR 2217 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 (435 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 62.0 gr projectile in 0.243" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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-26, Winchester StaBALL HD, IMR 7828 SSC rank at the top here: for .244 H&H Mag. with the .243 | 62gr | Lehigh Defense Controlled Chaos they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, IMR 8133 Enduron, Norma 217 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.