Load Specifications
Load data in caliber .244 H&H Mag. with .243 | 80gr | Frontier BTSP bullet and 56 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Ramshot Grand.
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>> | 88% | 53,853 psi | 85% | 3412 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 56,710 psi | 90% | 3586 fps | 98% |
| ADI AR 2209 | <<locked>> | 86% | 55,056 psi | 87% | 3514 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 88% | 53,345 psi | 85% | 3514 fps | 98.3% |
| ADI AR 2217 | <<locked>> | 98% | 56,028 psi | 89% | 3553 fps | 99.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 54,824 psi | 87% | 3573 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 54,940 psi | 87% | 3520 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 54,868 psi | 87% | 3504 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 88% | 53,911 psi | 85% | 3514 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 90% | 55,753 psi | 88% | 3491 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 55,941 psi | 89% | 3560 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 56,420 psi | 89% | 3579 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 54,563 psi | 86% | 3468 fps | 96.2% |
| Bofors RP15 | <<locked>> | 90% | 53,374 psi | 85% | 3501 fps | 99.1% |
| Bofors RP30 | <<locked>> | 96% | 55,738 psi | 88% | 3560 fps | 99.1% |
| Bofors RP5 | <<locked>> | 88% | 53,911 psi | 85% | 3514 fps | 99.2% |
| Hodgdon H1000 | <<locked>> | 94% | 53,563 psi | 85% | 3507 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 88% | 56,710 psi | 90% | 3517 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 88% | 55,405 psi | 88% | 3494 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 55,390 psi | 88% | 3432 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 54,694 psi | 87% | 3645 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,347 psi | 59% | 2336 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 53,925 psi | 85% | 3435 fps | 99.6% |
| IMR 4831 | <<locked>> | 82% | 54,360 psi | 86% | 3442 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 57,087 psi | 90% | 3497 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 90% | 55,637 psi | 88% | 3566 fps | 98.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 50,082 psi | 79% | 3458 fps | 98.1% |
| Lovex S070 | <<locked>> | 82% | 56,159 psi | 89% | 3474 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 55,608 psi | 88% | 3445 fps | 100% |
| Norma 204 | <<locked>> | 82% | 55,114 psi | 87% | 3494 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 51,053 psi | 81% | 3491 fps | 99.6% |
| Norma MRP | <<locked>> | 86% | 53,940 psi | 85% | 3533 fps | 99.8% |
| Norma URP | <<locked>> | 82% | 56,028 psi | 89% | 3494 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 56,840 psi | 90% | 3589 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 82% | 55,085 psi | 87% | 3494 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 55,521 psi | 88% | 3504 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,305 psi | 61% | 2388 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 56,971 psi | 90% | 3570 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 56,028 psi | 89% | 3635 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 55,579 psi | 88% | 3576 fps | 98.1% |
| Rottweil R 904 | <<locked>> | 86% | 55,854 psi | 89% | 3484 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 86% | 54,476 psi | 86% | 3491 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 82% | 56,159 psi | 89% | 3474 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 56,797 psi | 90% | 3422 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 54,085 psi | 86% | 3484 fps | 99.2% |
| Somchem S361 | <<locked>> | 84% | 53,722 psi | 85% | 3396 fps | 97.9% |
| Somchem S365 | <<locked>> | 82% | 53,592 psi | 85% | 3438 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 55,042 psi | 87% | 3461 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 90% | 54,810 psi | 87% | 3438 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 82% | 56,797 psi | 90% | 3484 fps | 100% |
| Vihtavuori N555 | <<locked>> | 86% | 53,766 psi | 85% | 3465 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 53,461 psi | 85% | 3527 fps | 97.9% |
| Vihtavuori N565 | <<locked>> | 92% | 54,433 psi | 86% | 3510 fps | 98.3% |
| Vihtavuori N568 | <<locked>> | 96% | 56,057 psi | 89% | 3583 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 55,448 psi | 88% | 3583 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 54,795 psi | 87% | 3448 fps | 99.3% |
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% | 40,799 psi | 65% | 3143 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 82% | 45,571 psi | 72% | 3346 fps | 95.2% |
| ADI AR 2209 | <<locked>> | 80% | 44,788 psi | 71% | 3301 fps | 97.4% |
| ADI AR 2213 | <<locked>> | 82% | 43,236 psi | 69% | 3287 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 90% | 42,322 psi | 67% | 3255 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 86% | 33,576 psi | 53% | 3048 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,445 psi | 82% | 3455 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,744 psi | 71% | 3291 fps | 97.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,901 psi | 65% | 3222 fps | 96.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,581 psi | 63% | 3173 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,098 psi | 54% | 3064 fps | 97.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,860 psi | 71% | 3356 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 51,256 psi | 81% | 3396 fps | 95.2% |
| Bofors RP15 | <<locked>> | 80% | 37,971 psi | 60% | 3140 fps | 95% |
| Bofors RP30 | <<locked>> | 88% | 42,105 psi | 67% | 3264 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 40,901 psi | 65% | 3222 fps | 96.3% |
| Hodgdon H1000 | <<locked>> | 86% | 40,263 psi | 64% | 3202 fps | 95.8% |
| Hodgdon H4831 | <<locked>> | 82% | 46,021 psi | 73% | 3297 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 82% | 45,165 psi | 72% | 3278 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,370 psi | 77% | 3307 fps | 100% |
| Hodgdon Retumbo | 62.2 gr | 84% | 38,319 psi | 61% | 3245 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,094 psi | 45% | 2103 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,459 psi | 80% | 3366 fps | 99.3% |
| IMR 4831 | <<locked>> | 80% | 51,010 psi | 81% | 3379 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,961 psi | 70% | 3222 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 82% | 41,785 psi | 66% | 3264 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 94% | 40,582 psi | 64% | 3238 fps | 95.2% |
| Lovex S070 | <<locked>> | 80% | 52,547 psi | 83% | 3406 fps | 99.8% |
| Lovex S071 | <<locked>> | 80% | 35,012 psi | 55% | 2992 fps | 96.9% |
| Norma 204 | <<locked>> | 80% | 51,474 psi | 82% | 3422 fps | 98.7% |
| Norma 217 | <<locked>> | 90% | 35,418 psi | 56% | 3117 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 43,337 psi | 69% | 3304 fps | 98.3% |
| Norma URP | <<locked>> | 80% | 52,330 psi | 83% | 3428 fps | 100% |
| Ramshot Grand | 62.5 gr | 82% | 41,800 psi | 66% | 3271 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 51,517 psi | 82% | 3425 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 80% | 34,896 psi | 55% | 3045 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,631 psi | 45% | 2146 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,837 psi | 84% | 3497 fps | 100% |
| ReloadSwiss RS 76 | 65 gr | 82% | 35,259 psi | 56% | 3133 fps | 96.1% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 47,471 psi | 75% | 3409 fps | 96.1% |
| Rottweil R 904 | <<locked>> | 80% | 45,759 psi | 73% | 3274 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 80% | 44,324 psi | 70% | 3278 fps | 97.4% |
| Shooters World SW4350 | <<locked>> | 80% | 52,547 psi | 83% | 3406 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 53,127 psi | 84% | 3356 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,976 psi | 70% | 3271 fps | 97.3% |
| Somchem S361 | <<locked>> | 80% | 46,949 psi | 74% | 3258 fps | 96.3% |
| Somchem S365 | <<locked>> | 80% | 49,893 psi | 79% | 3373 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,904 psi | 71% | 3255 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 80% | 38,972 psi | 62% | 3097 fps | 96.4% |
| Vihtavuori N550 | <<locked>> | 80% | 53,142 psi | 84% | 3419 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 44,019 psi | 70% | 3271 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 43,105 psi | 68% | 3294 fps | 95% |
| Vihtavuori N565 | <<locked>> | 86% | 44,193 psi | 70% | 3287 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 92% | 48,356 psi | 77% | 3422 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 37,217 psi | 59% | 3212 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,321 psi | 65% | 3166 fps | 96.5% |
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 62 powders for .244 H&H Mag. loaded with the .243 | 80gr | Frontier BTSP. Hodgdon Retumbo delivers the highest muzzle velocity at 3,645 fps; across all powders the maximum-charge window runs from 2,336 fps to 3,645 fps. ADI AR 2218 gives the best case fill at 100 %, and 62 of the 62 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 80.0 gr projectile in 0.243" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-50 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. Hodgdon Retumbo, ReloadSwiss RS 76, Ramshot Grand rank at the top here: for .244 H&H Mag. with the .243 | 80gr | Frontier BTSP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-50, IMR 7977 Enduron, Vihtavuori N170 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.