Load Specifications
Load data in caliber .30-06 Spring. with .308 | 178gr | Hornady ELD-X 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 60, Alliant Reloder-17 and Alliant Power Pro 2000-MR.
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 2015 | <<locked>> | 84% | 51,314 psi | 87% | 2526 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 52,881 psi | 90% | 2592 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 52,402 psi | 89% | 2585 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 50,981 psi | 87% | 2602 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 52,431 psi | 89% | 2575 fps | 95.9% |
| Accurate 4064 | <<locked>> | 92% | 52,417 psi | 89% | 2631 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,619 psi | 88% | 2697 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 86% | 50,198 psi | 85% | 2608 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 92% | 51,227 psi | 87% | 2608 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 86% | 52,605 psi | 90% | 2615 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 52,910 psi | 90% | 2595 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 52,634 psi | 90% | 2759 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 50,676 psi | 86% | 2628 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 90% | 51,517 psi | 88% | 2651 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,980 psi | 85% | 2694 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 50,879 psi | 87% | 2733 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,621 psi | 61% | 2444 fps | 97.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 53,098 psi | 90% | 2671 fps | 99.3% |
| Bofors RP3 | <<locked>> | 92% | 51,039 psi | 87% | 2644 fps | 99.9% |
| Bofors RP7 | <<locked>> | 96% | 51,517 psi | 88% | 2605 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 84% | 51,285 psi | 87% | 2552 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 51,445 psi | 88% | 2638 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 49,516 psi | 84% | 2671 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 92% | 52,185 psi | 89% | 2651 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 98% | 51,372 psi | 87% | 2690 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 86% | 50,662 psi | 86% | 2621 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,267 psi | 79% | 2585 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 52,794 psi | 90% | 2697 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 52,127 psi | 89% | 2717 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,998 psi | 60% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 51,793 psi | 88% | 2621 fps | 99.8% |
| IMR 3031 | <<locked>> | 86% | 50,386 psi | 86% | 2612 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 50,589 psi | 86% | 2589 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 88% | 51,126 psi | 87% | 2572 fps | 96.5% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,663 psi | 88% | 2628 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 50,430 psi | 86% | 2592 fps | 96.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,791 psi | 83% | 2638 fps | 98.8% |
| IMR 4895 | <<locked>> | 90% | 52,808 psi | 90% | 2677 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 52,605 psi | 90% | 2615 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 52,707 psi | 90% | 2602 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 52,692 psi | 90% | 2635 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 50,444 psi | 86% | 2549 fps | 99.6% |
| Lovex S062 | <<locked>> | 90% | 50,502 psi | 86% | 2595 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 52,547 psi | 89% | 2631 fps | 98.1% |
| Lovex S070 | <<locked>> | 98% | 50,082 psi | 85% | 2612 fps | 96.6% |
| Norma 201 | <<locked>> | 88% | 52,417 psi | 89% | 2612 fps | 100% |
| Norma 202 | <<locked>> | 88% | 52,605 psi | 90% | 2612 fps | 100% |
| Norma 203B | <<locked>> | 90% | 50,691 psi | 86% | 2638 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 50,981 psi | 87% | 2684 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 90% | 50,676 psi | 86% | 2654 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,864 psi | 85% | 2674 fps | 97.3% |
| Ramshot TAC | <<locked>> | 86% | 52,837 psi | 90% | 2625 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 52,301 psi | 89% | 2648 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 50,183 psi | 85% | 2566 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,534 psi | 60% | 1647 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 52,127 psi | 89% | 2598 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 52,576 psi | 90% | 2631 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 51,213 psi | 87% | 2703 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 50,850 psi | 87% | 2740 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,894 psi | 87% | 2710 fps | 98.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,648 psi | 88% | 2736 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 84% | 50,401 psi | 86% | 2552 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 52,649 psi | 90% | 2605 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 50,923 psi | 87% | 2635 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 96% | 51,517 psi | 88% | 2605 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 98% | 52,547 psi | 89% | 2631 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 52,692 psi | 90% | 2635 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 50,502 psi | 86% | 2595 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 50,082 psi | 85% | 2612 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 52,591 psi | 90% | 2690 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 51,140 psi | 87% | 2605 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 51,750 psi | 88% | 2631 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 50,879 psi | 87% | 2513 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 50,850 psi | 87% | 2513 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 53,113 psi | 90% | 2589 fps | 96.9% |
| Somchem S321 | <<locked>> | 82% | 50,198 psi | 85% | 2595 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 50,169 psi | 85% | 2513 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 50,546 psi | 86% | 2598 fps | 99.5% |
| Somchem S355 | <<locked>> | 94% | 51,387 psi | 87% | 2631 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,513 psi | 77% | 2638 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 50,923 psi | 87% | 2484 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 51,024 psi | 87% | 2503 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 51,982 psi | 88% | 2575 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 53,026 psi | 90% | 2589 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 52,649 psi | 90% | 2612 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 50,183 psi | 85% | 2631 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 86% | 53,026 psi | 90% | 2615 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 51,285 psi | 87% | 2589 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,417 psi | 89% | 2684 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,159 psi | 65% | 2513 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 50,792 psi | 86% | 2615 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 52,678 psi | 90% | 2657 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 51,372 psi | 87% | 2690 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 51,619 psi | 88% | 2638 fps | 99.9% |
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 2015 | <<locked>> | 80% | 45,252 psi | 77% | 2441 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,255 psi | 84% | 2543 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,710 psi | 64% | 2365 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,440 psi | 76% | 2503 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 49,211 psi | 84% | 2526 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 35,694 psi | 61% | 2356 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 33,939 psi | 58% | 2379 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 41,655 psi | 71% | 2464 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 80% | 35,375 psi | 60% | 2320 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,656 psi | 74% | 2474 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 43,424 psi | 74% | 2467 fps | 100% |
| Alliant Power Pro 2000-MR | 45.9 gr | 80% | 37,594 psi | 64% | 2477 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,824 psi | 59% | 2343 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,434 psi | 64% | 2398 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 88% | 34,824 psi | 59% | 2392 fps | 95.1% |
| Alliant Reloder-17 | 46.3 gr | 82% | 31,995 psi | 54% | 2352 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,560 psi | 54% | 2343 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,683 psi | 69% | 2461 fps | 97.2% |
| Bofors RP3 | <<locked>> | 80% | 34,287 psi | 58% | 2346 fps | 97.6% |
| Bofors RP7 | <<locked>> | 94% | 48,588 psi | 83% | 2556 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,440 psi | 77% | 2464 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,119 psi | 72% | 2490 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,340 psi | 79% | 2621 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 82% | 37,550 psi | 64% | 2395 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 94% | 44,788 psi | 76% | 2582 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 41,974 psi | 71% | 2474 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,834 psi | 51% | 2247 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,768 psi | 64% | 2441 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 96% | 48,501 psi | 83% | 2657 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,078 psi | 44% | 1434 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,219 psi | 68% | 2428 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 41,205 psi | 70% | 2470 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,101 psi | 63% | 2352 fps | 96.8% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,063 psi | 77% | 2470 fps | 95.1% |
| IMR 4350 | <<locked>> | 98% | 48,428 psi | 82% | 2579 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 47,601 psi | 81% | 2543 fps | 95.6% |
| IMR 4831 | <<locked>> | 90% | 35,346 psi | 60% | 2392 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 38,334 psi | 65% | 2428 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 80% | 43,656 psi | 74% | 2474 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 49,095 psi | 84% | 2549 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,350 psi | 69% | 2444 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 41,945 psi | 71% | 2405 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 36,956 psi | 63% | 2359 fps | 98.5% |
| Lovex S065 | <<locked>> | 90% | 41,234 psi | 70% | 2441 fps | 95.6% |
| Lovex S070 | <<locked>> | 94% | 44,309 psi | 75% | 2513 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 40,683 psi | 69% | 2418 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 40,988 psi | 70% | 2431 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,854 psi | 63% | 2388 fps | 97.3% |
| Norma URP | <<locked>> | 90% | 36,738 psi | 63% | 2428 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 36,201 psi | 62% | 2395 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 94% | 41,191 psi | 70% | 2520 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 43,642 psi | 74% | 2474 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,728 psi | 73% | 2490 fps | 98.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,195 psi | 80% | 2516 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,397 psi | 45% | 1470 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,863 psi | 83% | 2549 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,511 psi | 74% | 2480 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,885 psi | 66% | 2490 fps | 97.3% |
| ReloadSwiss RS 60 | 45.2 gr | 80% | 31,952 psi | 54% | 2362 fps | 98.4% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,260 psi | 62% | 2448 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,421 psi | 67% | 2510 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 44,585 psi | 76% | 2461 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,769 psi | 66% | 2375 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 32,126 psi | 55% | 2290 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 94% | 48,588 psi | 83% | 2556 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,234 psi | 70% | 2441 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,350 psi | 69% | 2444 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 36,956 psi | 63% | 2359 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 94% | 44,309 psi | 75% | 2513 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,214 psi | 57% | 2336 fps | 95.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,568 psi | 71% | 2444 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,118 psi | 68% | 2431 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,192 psi | 72% | 2382 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,896 psi | 59% | 2257 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 46,383 psi | 79% | 2487 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 47,123 psi | 80% | 2549 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 41,713 psi | 71% | 2382 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,423 psi | 71% | 2448 fps | 98.3% |
| Somchem S355 | <<locked>> | 80% | 33,098 psi | 56% | 2297 fps | 96.6% |
| Somchem S365 | <<locked>> | 84% | 27,224 psi | 46% | 2231 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 47,718 psi | 81% | 2441 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,409 psi | 72% | 2379 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,927 psi | 65% | 2362 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,682 psi | 66% | 2369 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,459 psi | 54% | 2241 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 36,260 psi | 62% | 2385 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 43,758 psi | 74% | 2470 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 37,246 psi | 63% | 2359 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 35,462 psi | 60% | 2385 fps | 95% |
| Vihtavuori N555 | <<locked>> | 96% | 33,605 psi | 57% | 2411 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,979 psi | 51% | 2215 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 42,946 psi | 73% | 2510 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 45,034 psi | 77% | 2585 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,349 psi | 67% | 2434 fps | 98.4% |
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 94 powders for .30-06 Spring. loaded with the .308 | 178gr | Hornady ELD-X. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,759 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,759 fps. Accurate 4350 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 178.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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 60, Alliant Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for .30-06 Spring. with the .308 | 178gr | Hornady ELD-X 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.