Load Specifications
Load data in caliber 7-6.5 PRCW with .284 | 177gr | Brenneke TIG bullet and 95 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
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
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 57,769 psi | 89% | 2546 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 58,769 psi | 90% | 2631 fps | 99.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,840 psi | 87% | 2677 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 58,131 psi | 89% | 2602 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,434 psi | 85% | 2667 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 55,129 psi | 85% | 2766 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 86% | 57,957 psi | 89% | 2638 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 56,014 psi | 86% | 2713 fps | 99.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 57,566 psi | 89% | 2772 fps | 98.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,101 psi | 57% | 2461 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 57,711 psi | 89% | 2759 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,448 psi | 85% | 2612 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,492 psi | 85% | 2631 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 56,217 psi | 87% | 2720 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 57,450 psi | 88% | 2736 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,419 psi | 85% | 2703 fps | 99.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,724 psi | 87% | 2766 fps | 99.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,664 psi | 83% | 2690 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,427 psi | 71% | 2635 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 98% | 57,711 psi | 89% | 2831 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,837 psi | 80% | 2694 fps | 98.8% |
| Bofors RP3 | <<locked>> | 84% | 56,304 psi | 87% | 2628 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 42,279 psi | 65% | 2562 fps | 96.2% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,724 psi | 87% | 2766 fps | 99.4% |
| Bofors RP7 | <<locked>> | 90% | 58,784 psi | 90% | 2667 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,079 psi | 71% | 2582 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 84% | 56,434 psi | 87% | 2644 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 57,276 psi | 88% | 2717 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 88% | 57,000 psi | 88% | 2680 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 98% | 57,725 psi | 89% | 2713 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,405 psi | 87% | 2697 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,391 psi | 87% | 2644 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 57,856 psi | 89% | 2674 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,658 psi | 70% | 2680 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 90% | 57,725 psi | 89% | 2759 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,782 psi | 57% | 1617 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 58,407 psi | 90% | 2638 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 57,203 psi | 88% | 2615 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 56,347 psi | 87% | 2608 fps | 99.8% |
| IMR 4350 | <<locked>> | 92% | 56,536 psi | 87% | 2657 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,855 psi | 88% | 2641 fps | 99.8% |
| IMR 4831 | <<locked>> | 92% | 55,753 psi | 86% | 2661 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,913 psi | 88% | 2654 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,347 psi | 85% | 2648 fps | 97.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,868 psi | 84% | 2746 fps | 98.3% |
| Lovex S060 | <<locked>> | 82% | 58,566 psi | 90% | 2598 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 57,479 psi | 88% | 2608 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 57,276 psi | 88% | 2641 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 58,726 psi | 90% | 2687 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,413 psi | 73% | 2543 fps | 99.6% |
| Norma 203B | <<locked>> | 84% | 58,508 psi | 90% | 2667 fps | 100% |
| Norma 204 | <<locked>> | 92% | 57,421 psi | 88% | 2710 fps | 99.2% |
| Norma MRP | <<locked>> | 98% | 56,188 psi | 86% | 2789 fps | 99.9% |
| Norma URP | <<locked>> | 92% | 57,667 psi | 89% | 2703 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,608 psi | 86% | 2644 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,303 psi | 85% | 2762 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 92% | 56,420 psi | 87% | 2710 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,385 psi | 76% | 2644 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,318 psi | 57% | 1654 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,304 psi | 87% | 2635 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,913 psi | 88% | 2726 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 55,303 psi | 85% | 2694 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 57,363 psi | 88% | 2772 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,382 psi | 70% | 2674 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 82% | 56,028 psi | 86% | 2572 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,463 psi | 87% | 2625 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,928 psi | 89% | 2690 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 98% | 58,653 psi | 90% | 2746 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 90% | 58,784 psi | 90% | 2667 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 57,276 psi | 88% | 2641 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 57,479 psi | 88% | 2608 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 58,726 psi | 90% | 2687 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,812 psi | 89% | 2680 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 58,552 psi | 90% | 2648 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,971 psi | 88% | 2507 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,768 psi | 87% | 2598 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 58,160 psi | 90% | 2743 fps | 99.5% |
| Somchem S355 | <<locked>> | 86% | 56,086 psi | 86% | 2618 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,767 psi | 86% | 2631 fps | 97.7% |
| Somchem S365 | <<locked>> | 94% | 57,246 psi | 88% | 2703 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,317 psi | 85% | 2667 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 82% | 56,463 psi | 87% | 2530 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,681 psi | 87% | 2546 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 57,479 psi | 88% | 2592 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,086 psi | 86% | 2648 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,578 psi | 84% | 2644 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 84% | 58,320 psi | 90% | 2592 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 58,784 psi | 90% | 2700 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 56,260 psi | 87% | 2717 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,362 psi | 87% | 2782 fps | 98.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 48,327 psi | 74% | 2644 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,405 psi | 85% | 2612 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 57,595 psi | 89% | 2723 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,081 psi | 76% | 2759 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,564 psi | 86% | 2667 fps | 99.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 54,302 psi | 84% | 2503 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 51,619 psi | 79% | 2530 fps | 99.1% |
| Accurate 3100 | <<locked>> | 80% | 29,211 psi | 45% | 2182 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 51,517 psi | 79% | 2516 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,624 psi | 61% | 2418 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 92% | 44,831 psi | 69% | 2595 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 48,153 psi | 74% | 2497 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 38,116 psi | 59% | 2402 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 92% | 44,005 psi | 68% | 2546 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 98% | 34,766 psi | 54% | 2402 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,824 psi | 83% | 2703 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,892 psi | 75% | 2520 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,243 psi | 80% | 2585 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,377 psi | 59% | 2425 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,497 psi | 67% | 2533 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 37,971 psi | 58% | 2398 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,058 psi | 59% | 2444 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,268 psi | 44% | 2211 fps | 98.3% |
| Alliant Reloder-25 | <<locked>> | 86% | 29,878 psi | 46% | 2267 fps | 95.8% |
| Alliant Reloder-26 | 49.4 gr | 80% | 30,095 psi | 46% | 2316 fps | 96.9% |
| Bofors RP15 | <<locked>> | 90% | 37,565 psi | 58% | 2431 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 49,443 psi | 76% | 2533 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 39,711 psi | 61% | 2513 fps | 95.4% |
| Bofors RP5 | <<locked>> | 88% | 38,058 psi | 59% | 2444 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 43,221 psi | 67% | 2425 fps | 97.9% |
| Hodgdon H1000 | <<locked>> | 96% | 40,364 psi | 62% | 2470 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 49,719 psi | 77% | 2549 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 41,437 psi | 64% | 2461 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 80% | 44,338 psi | 68% | 2477 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 90% | 44,106 psi | 68% | 2500 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 92% | 46,166 psi | 71% | 2536 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,998 psi | 55% | 2326 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 54,128 psi | 83% | 2625 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 37,623 psi | 58% | 2503 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 40,321 psi | 62% | 2477 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,470 psi | 42% | 1440 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 54,723 psi | 84% | 2589 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,676 psi | 78% | 2526 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,808 psi | 81% | 2559 fps | 99.6% |
| IMR 4350 | <<locked>> | 80% | 38,841 psi | 60% | 2359 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,614 psi | 69% | 2448 fps | 98.5% |
| IMR 4831 | <<locked>> | 80% | 37,971 psi | 58% | 2372 fps | 99.3% |
| IMR 4895 | <<locked>> | 80% | 53,621 psi | 83% | 2612 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 43,337 psi | 67% | 2448 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 92% | 42,206 psi | 65% | 2523 fps | 95.3% |
| Lovex S060 | <<locked>> | 80% | 55,216 psi | 85% | 2552 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 50,981 psi | 78% | 2520 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,308 psi | 65% | 2408 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 40,524 psi | 62% | 2392 fps | 98% |
| Lovex S071 | <<locked>> | 86% | 30,429 psi | 47% | 2211 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 51,605 psi | 79% | 2572 fps | 100% |
| Norma 204 | <<locked>> | 80% | 38,406 psi | 59% | 2388 fps | 95.3% |
| Norma MRP | 49.2 gr | 82% | 32,590 psi | 50% | 2343 fps | 95% |
| Norma URP | <<locked>> | 80% | 39,262 psi | 60% | 2411 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 80% | 52,054 psi | 80% | 2595 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 41,800 psi | 64% | 2530 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 38,029 psi | 59% | 2402 fps | 98% |
| Ramshot Magnum | <<locked>> | 90% | 34,693 psi | 53% | 2362 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,021 psi | 43% | 1476 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,458 psi | 76% | 2533 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,166 psi | 71% | 2579 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,334 psi | 61% | 2434 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,985 psi | 58% | 2444 fps | 99% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,519 psi | 53% | 2428 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 52,779 psi | 81% | 2530 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,615 psi | 72% | 2487 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,148 psi | 65% | 2434 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 84% | 37,028 psi | 57% | 2382 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 43,221 psi | 67% | 2425 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,308 psi | 65% | 2408 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 50,981 psi | 78% | 2520 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,524 psi | 62% | 2392 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,718 psi | 73% | 2536 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 55,172 psi | 85% | 2605 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,616 psi | 73% | 2385 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,379 psi | 64% | 2356 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 36,680 psi | 56% | 2375 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 46,775 psi | 72% | 2484 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 45,745 psi | 70% | 2474 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 35,694 psi | 55% | 2369 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,215 psi | 54% | 2316 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 53,345 psi | 82% | 2490 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 53,403 psi | 82% | 2507 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,715 psi | 69% | 2418 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,669 psi | 63% | 2408 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 86% | 34,650 psi | 53% | 2297 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 51,547 psi | 79% | 2503 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,059 psi | 62% | 2411 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 31,386 psi | 48% | 2280 fps | 98.3% |
| Vihtavuori N560 | 53.9 gr | 90% | 42,960 psi | 66% | 2556 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 96% | 42,076 psi | 65% | 2533 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,581 psi | 61% | 2379 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,437 psi | 64% | 2461 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,961 psi | 38% | 2198 fps | 97.7% |
| Winchester Supreme 780 | <<locked>> | 86% | 36,709 psi | 56% | 2346 fps | 95% |
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 95 powders for 7-6.5 PRCW loaded with the .284 | 177gr | Brenneke TIG. Alliant Reloder-26 delivers the highest muzzle velocity at 2,831 fps; across all powders the maximum-charge window runs from 1,617 fps to 2,831 fps. Accurate 3100 gives the best case fill at 100 %, and 95 of the 95 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 177.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, ADI AR 2225 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, Norma MRP, Vihtavuori N560 rank at the top here: for 7-6.5 PRCW with the .284 | 177gr | Brenneke TIG 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.