Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 200gr | Norma ORYX bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 48,356 psi | 88% | 2484 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 47,123 psi | 86% | 2487 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,495 psi | 75% | 2510 fps | 98.6% |
| Accurate 4064 | <<locked>> | 86% | 48,414 psi | 88% | 2530 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 47,500 psi | 86% | 2618 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 48,791 psi | 89% | 2559 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 49,792 psi | 90% | 2562 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 49,356 psi | 90% | 2648 fps | 97.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 47,674 psi | 87% | 2667 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 49,705 psi | 90% | 2582 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 46,978 psi | 85% | 2556 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 49,052 psi | 89% | 2667 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 49,719 psi | 90% | 2697 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 48,269 psi | 88% | 2641 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 42,221 psi | 77% | 2585 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,813 psi | 72% | 2543 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 35,085 psi | 64% | 2457 fps | 97.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,411 psi | 81% | 2703 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 47,892 psi | 87% | 2572 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 49,748 psi | 90% | 2595 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 42,221 psi | 77% | 2585 fps | 96.5% |
| Bofors RP7 | <<locked>> | 90% | 47,210 psi | 86% | 2530 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 86% | 47,645 psi | 86% | 2566 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 92% | 47,036 psi | 85% | 2618 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 90% | 47,979 psi | 87% | 2579 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 82% | 49,255 psi | 89% | 2569 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 48,617 psi | 88% | 2595 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 48,240 psi | 88% | 2598 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 46,920 psi | 85% | 2648 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,679 psi | 65% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 47,065 psi | 85% | 2523 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 49,037 psi | 89% | 2543 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 49,052 psi | 89% | 2543 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 48,878 psi | 89% | 2523 fps | 98.8% |
| IMR 4350 | <<locked>> | 94% | 47,268 psi | 86% | 2556 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 90% | 48,907 psi | 89% | 2559 fps | 98.8% |
| IMR 4831 | <<locked>> | 96% | 48,240 psi | 88% | 2612 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 48,124 psi | 87% | 2582 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 49,284 psi | 89% | 2585 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 82% | 48,138 psi | 87% | 2533 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 48,501 psi | 88% | 2490 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 48,965 psi | 89% | 2539 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 48,428 psi | 88% | 2556 fps | 99.5% |
| Lovex S070 | <<locked>> | 94% | 48,907 psi | 89% | 2585 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 34,635 psi | 63% | 2385 fps | 97.1% |
| Norma 201 | <<locked>> | 82% | 47,572 psi | 86% | 2507 fps | 100% |
| Norma 202 | <<locked>> | 82% | 48,182 psi | 87% | 2507 fps | 100% |
| Norma 203B | <<locked>> | 86% | 49,414 psi | 90% | 2592 fps | 100% |
| Norma 204 | <<locked>> | 94% | 47,311 psi | 86% | 2598 fps | 97.2% |
| Norma MRPᴾ | <<locked>> | 100% | 44,353 psi | 80% | 2661 fps | 98.4% |
| Norma URP | <<locked>> | 94% | 46,862 psi | 85% | 2608 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 86% | 49,342 psi | 90% | 2612 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 48,936 psi | 89% | 2657 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,085 psi | 65% | 1608 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 47,892 psi | 87% | 2549 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 46,920 psi | 85% | 2612 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 49,559 psi | 90% | 2694 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 46,876 psi | 85% | 2638 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 46,717 psi | 85% | 2664 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 84% | 48,138 psi | 87% | 2507 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 46,644 psi | 85% | 2543 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 47,848 psi | 87% | 2572 fps | 96.2% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 46,891 psi | 85% | 2621 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 90% | 47,210 psi | 86% | 2530 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 48,428 psi | 88% | 2556 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 82% | 48,138 psi | 87% | 2533 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 48,965 psi | 89% | 2539 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 48,907 psi | 89% | 2585 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 47,993 psi | 87% | 2598 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 49,182 psi | 89% | 2556 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 47,195 psi | 86% | 2536 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 48,979 psi | 89% | 2441 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 49,139 psi | 89% | 2448 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 48,109 psi | 87% | 2507 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 46,470 psi | 84% | 2618 fps | 97.5% |
| Somchem S335 | <<locked>> | 82% | 48,501 psi | 88% | 2444 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 48,762 psi | 88% | 2546 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 47,282 psi | 86% | 2543 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 48,022 psi | 87% | 2654 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 47,659 psi | 86% | 2605 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 82% | 49,284 psi | 89% | 2428 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 47,863 psi | 87% | 2467 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 48,385 psi | 88% | 2484 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 48,399 psi | 88% | 2523 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 49,226 psi | 89% | 2602 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 41,162 psi | 75% | 2477 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 84% | 46,804 psi | 85% | 2490 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 48,138 psi | 87% | 2608 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,671 psi | 79% | 2608 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 48,994 psi | 89% | 2575 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 47,036 psi | 85% | 2618 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,447 psi | 64% | 2572 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 49,850 psi | 90% | 2585 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 44,773 psi | 81% | 2543 fps | 96.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 42,351 psi | 77% | 2402 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 41,394 psi | 75% | 2388 fps | 96.6% |
| Accurate 3100 | <<locked>> | 90% | 29,704 psi | 54% | 2274 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 40,074 psi | 73% | 2405 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 29,341 psi | 53% | 2274 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 80% | 45,672 psi | 83% | 2513 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 38,928 psi | 71% | 2385 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 94% | 40,901 psi | 74% | 2500 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,698 psi | 76% | 2566 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,566 psi | 70% | 2405 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,394 psi | 75% | 2464 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 30,008 psi | 54% | 2287 fps | 97.2% |
| Alliant Reloder-17 | 44.1 gr | 80% | 33,344 psi | 61% | 2402 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 94% | 40,234 psi | 73% | 2497 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 39,508 psi | 72% | 2533 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 23,076 psi | 42% | 2116 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 94% | 29,341 psi | 53% | 2310 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 86% | 27,586 psi | 50% | 2316 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,875 psi | 81% | 2523 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 38,363 psi | 70% | 2415 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 39,508 psi | 72% | 2533 fps | 95.7% |
| Bofors RP7 | <<locked>> | 82% | 36,912 psi | 67% | 2343 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 39,001 psi | 71% | 2418 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 82% | 33,910 psi | 62% | 2365 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 82% | 37,101 psi | 67% | 2382 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 46,137 psi | 84% | 2520 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,470 psi | 50% | 2192 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,192 psi | 77% | 2507 fps | 100% |
| Hodgdon Superformance | 48.9 gr | 84% | 35,505 psi | 64% | 2425 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,687 psi | 48% | 1404 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,309 psi | 80% | 2477 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 46,021 psi | 84% | 2500 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,901 psi | 74% | 2411 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,207 psi | 78% | 2431 fps | 97.8% |
| IMR 4350 | <<locked>> | 84% | 34,766 psi | 63% | 2323 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 36,013 psi | 65% | 2323 fps | 95.9% |
| IMR 4831 | <<locked>> | 80% | 28,601 psi | 52% | 2234 fps | 96.8% |
| IMR 4895 | <<locked>> | 80% | 42,424 psi | 77% | 2490 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 46,441 psi | 84% | 2539 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 80% | 44,976 psi | 82% | 2487 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,730 psi | 83% | 2448 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 40,901 psi | 74% | 2411 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 33,576 psi | 61% | 2280 fps | 96.8% |
| Lovex S070 | <<locked>> | 82% | 33,823 psi | 61% | 2306 fps | 95.7% |
| Lovex S071 | <<locked>> | 96% | 30,443 psi | 55% | 2293 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 44,788 psi | 81% | 2464 fps | 100% |
| Norma 202 | <<locked>> | 80% | 45,063 psi | 82% | 2464 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,770 psi | 74% | 2451 fps | 99.9% |
| Norma 204 | <<locked>> | 90% | 41,379 psi | 75% | 2497 fps | 95.7% |
| Norma MRP | <<locked>> | 92% | 34,055 psi | 62% | 2448 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 29,994 psi | 54% | 2277 fps | 97% |
| Ramshot Big Game | <<locked>> | 80% | 40,408 psi | 73% | 2470 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 31,227 psi | 57% | 2313 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,890 psi | 49% | 1437 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,421 psi | 72% | 2402 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,772 psi | 79% | 2562 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,491 psi | 64% | 2454 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 29,167 psi | 53% | 2287 fps | 96.5% |
| ReloadSwiss RS 70 | 44.8 gr | 80% | 29,457 psi | 53% | 2293 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 42,670 psi | 77% | 2421 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 36,158 psi | 66% | 2365 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 96% | 45,078 psi | 82% | 2526 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 94% | 38,725 psi | 70% | 2474 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 82% | 36,912 psi | 67% | 2343 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 33,576 psi | 61% | 2280 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,976 psi | 82% | 2487 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,901 psi | 74% | 2411 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 33,823 psi | 61% | 2306 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,956 psi | 67% | 2411 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,079 psi | 84% | 2510 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,193 psi | 80% | 2487 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,021 psi | 84% | 2402 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,392 psi | 70% | 2290 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 32,561 psi | 59% | 2228 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 38,392 psi | 70% | 2470 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 45,730 psi | 83% | 2405 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,672 psi | 83% | 2500 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 36,854 psi | 67% | 2365 fps | 99.7% |
| Somchem S365 | <<locked>> | 80% | 26,847 psi | 49% | 2238 fps | 99% |
| Somchem S385 | <<locked>> | 90% | 34,490 psi | 63% | 2365 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 46,398 psi | 84% | 2388 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,206 psi | 77% | 2388 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,888 psi | 78% | 2405 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,157 psi | 64% | 2306 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 31,183 psi | 57% | 2270 fps | 97.3% |
| Vihtavuori N165 | <<locked>> | 96% | 36,245 psi | 66% | 2382 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 41,060 psi | 75% | 2402 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 30,589 psi | 56% | 2277 fps | 97% |
| Vihtavuori N555 | <<locked>> | 82% | 24,439 psi | 44% | 2182 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,922 psi | 56% | 2251 fps | 99% |
| Winchester 760 | <<locked>> | 82% | 33,910 psi | 62% | 2365 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 86% | 22,887 psi | 42% | 2182 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,656 psi | 79% | 2493 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 39,247 psi | 71% | 2444 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 108 powders for 7.5 x 55 Swiss loaded with the .308 | 200gr | Norma ORYX. Alliant Reloder-26 delivers the highest muzzle velocity at 2,703 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,703 fps. Accurate 3100 gives the best case fill at 100 %, and 108 of the 108 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 7.5 x 55 Swiss with the .308 | 200gr | Norma ORYX they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Hodgdon H1000 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.