Load Specifications
Load data in caliber .30 Nosler with .309 | 170gr | Reichenberg HDB Universal 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.
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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 2495 | <<locked>> | 82% | 56,536 psi | 87% | 2861 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 58,117 psi | 89% | 2946 fps | 99.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,855 psi | 87% | 2995 fps | 99.9% |
| Accurate 4064 | <<locked>> | 84% | 57,188 psi | 88% | 2920 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,853 psi | 84% | 2986 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 55,434 psi | 85% | 3084 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 86% | 57,435 psi | 88% | 2959 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 56,188 psi | 86% | 3038 fps | 98.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 57,522 psi | 88% | 3094 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 57,392 psi | 88% | 3091 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 55,622 psi | 86% | 2995 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 58,363 psi | 90% | 2982 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 58,494 psi | 90% | 3005 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,970 psi | 86% | 3048 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 57,305 psi | 88% | 3068 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,521 psi | 85% | 3025 fps | 98.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,652 psi | 87% | 3084 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,548 psi | 82% | 3005 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,311 psi | 71% | 2936 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 98% | 58,102 psi | 89% | 3159 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,851 psi | 80% | 3002 fps | 98% |
| Bofors RP3 | <<locked>> | 84% | 55,666 psi | 86% | 2946 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,652 psi | 87% | 3084 fps | 98.8% |
| Bofors RP7 | <<locked>> | 90% | 58,581 psi | 90% | 2992 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 84% | 55,999 psi | 86% | 2966 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 57,276 psi | 88% | 3045 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 88% | 56,811 psi | 87% | 3002 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 98% | 57,682 psi | 89% | 3031 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,463 psi | 87% | 3015 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,333 psi | 87% | 2969 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 57,595 psi | 89% | 3002 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,353 psi | 70% | 2972 fps | 97.4% |
| Hodgdon Superformance | <<locked>> | 90% | 57,957 psi | 89% | 3084 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,434 psi | 56% | 1854 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,798 psi | 89% | 2963 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,927 psi | 88% | 2943 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,898 psi | 86% | 2930 fps | 99.4% |
| IMR 4350 | <<locked>> | 92% | 56,260 psi | 87% | 2972 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,753 psi | 87% | 2966 fps | 99.5% |
| IMR 4831 | <<locked>> | 92% | 55,376 psi | 85% | 2979 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,275 psi | 87% | 2979 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,477 psi | 85% | 2963 fps | 97% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,926 psi | 85% | 3061 fps | 97.5% |
| Lovex S060 | <<locked>> | 82% | 58,276 psi | 90% | 2927 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,971 psi | 88% | 2933 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,884 psi | 88% | 2963 fps | 99.9% |
| Lovex S070 | <<locked>> | 92% | 58,247 psi | 90% | 3005 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,862 psi | 72% | 2835 fps | 99% |
| Norma 201 | <<locked>> | 82% | 58,102 psi | 89% | 2943 fps | 100% |
| Norma 203B | <<locked>> | 84% | 57,783 psi | 89% | 2989 fps | 100% |
| Norma 204 | <<locked>> | 92% | 57,276 psi | 88% | 3028 fps | 98.6% |
| Norma MRP | <<locked>> | 98% | 56,565 psi | 87% | 3114 fps | 99.6% |
| Norma URP | <<locked>> | 92% | 57,319 psi | 88% | 3025 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,201 psi | 85% | 2966 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,448 psi | 85% | 3081 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 92% | 56,260 psi | 87% | 3028 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,603 psi | 76% | 2949 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,057 psi | 57% | 1896 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,854 psi | 86% | 2953 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,884 psi | 88% | 3061 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,911 psi | 84% | 3009 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 57,493 psi | 88% | 3100 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,426 psi | 70% | 2966 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 84% | 58,784 psi | 90% | 2943 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,782 psi | 86% | 2943 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,725 psi | 89% | 3005 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 98% | 58,581 psi | 90% | 3068 fps | 99% |
| Rottweil R 907 | <<locked>> | 90% | 58,581 psi | 90% | 2992 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,884 psi | 88% | 2963 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 56,971 psi | 88% | 2933 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 58,247 psi | 90% | 3005 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,696 psi | 89% | 3009 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 58,349 psi | 90% | 2979 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,565 psi | 87% | 2825 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,507 psi | 87% | 2913 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 58,088 psi | 89% | 3061 fps | 99% |
| Somchem S335 | <<locked>> | 82% | 58,523 psi | 90% | 2864 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 55,521 psi | 85% | 2940 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,854 psi | 86% | 2940 fps | 96.8% |
| Somchem S365 | <<locked>> | 94% | 57,087 psi | 88% | 3028 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,245 psi | 85% | 2982 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 82% | 55,883 psi | 86% | 2851 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,086 psi | 86% | 2867 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 57,130 psi | 88% | 2913 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,738 psi | 86% | 2966 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,810 psi | 84% | 2959 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 84% | 57,943 psi | 89% | 2913 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 58,581 psi | 90% | 3025 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 56,057 psi | 86% | 3035 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,710 psi | 87% | 3104 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,622 psi | 86% | 2930 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 57,508 psi | 88% | 3048 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,487 psi | 76% | 3077 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 58,653 psi | 90% | 2986 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,637 psi | 86% | 2979 fps | 98.5% |
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 2495 | <<locked>> | 80% | 53,026 psi | 82% | 2812 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,894 psi | 78% | 2831 fps | 98.3% |
| Accurate 3100 | <<locked>> | 86% | 34,751 psi | 53% | 2579 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 50,314 psi | 77% | 2822 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,667 psi | 59% | 2690 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 96% | 51,547 psi | 79% | 3015 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 47,645 psi | 73% | 2802 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 42,859 psi | 66% | 2792 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 94% | 46,847 psi | 72% | 2900 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,345 psi | 82% | 3028 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 41,234 psi | 63% | 2720 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,182 psi | 74% | 2825 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,605 psi | 79% | 2897 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,637 psi | 58% | 2700 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,047 psi | 66% | 2831 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,583 psi | 66% | 2782 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 90% | 40,263 psi | 62% | 2776 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,427 psi | 42% | 2441 fps | 96.5% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,315 psi | 51% | 2628 fps | 95.9% |
| Alliant Reloder-26 | 70.1 gr | 82% | 31,575 psi | 49% | 2615 fps | 96% |
| Bofors RP15 | <<locked>> | 94% | 42,496 psi | 65% | 2822 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 48,675 psi | 75% | 2838 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 40,263 psi | 62% | 2776 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 42,598 psi | 66% | 2707 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 80% | 48,849 psi | 75% | 2848 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 40,727 psi | 63% | 2740 fps | 96.8% |
| Hodgdon H4350 | <<locked>> | 80% | 43,772 psi | 67% | 2766 fps | 96.3% |
| Hodgdon H4831 | <<locked>> | 94% | 50,270 psi | 77% | 2910 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,226 psi | 76% | 2890 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,186 psi | 54% | 2589 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,737 psi | 83% | 2946 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,711 psi | 61% | 2835 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 39,769 psi | 61% | 2749 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,282 psi | 42% | 1660 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 54,375 psi | 84% | 2910 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,125 psi | 77% | 2838 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,446 psi | 81% | 2871 fps | 99.1% |
| IMR 4350 | <<locked>> | 80% | 38,232 psi | 59% | 2631 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,106 psi | 68% | 2740 fps | 97.6% |
| IMR 4831 | <<locked>> | 80% | 37,057 psi | 57% | 2638 fps | 98.3% |
| IMR 4895 | <<locked>> | 80% | 52,968 psi | 81% | 2927 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 48,762 psi | 75% | 2844 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 96% | 47,863 psi | 74% | 2933 fps | 95.7% |
| Lovex S060 | <<locked>> | 80% | 54,679 psi | 84% | 2874 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 50,227 psi | 77% | 2831 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,481 psi | 64% | 2687 fps | 98.2% |
| Lovex S070 | <<locked>> | 80% | 39,726 psi | 61% | 2667 fps | 96.7% |
| Lovex S071 | <<locked>> | 90% | 33,678 psi | 52% | 2552 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 54,665 psi | 84% | 2894 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,923 psi | 78% | 2884 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,410 psi | 67% | 2779 fps | 95.6% |
| Norma MRP | 71.4 gr | 86% | 36,709 psi | 56% | 2720 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 38,508 psi | 59% | 2684 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 80% | 51,488 psi | 79% | 2907 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 44,556 psi | 69% | 2877 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 37,289 psi | 57% | 2667 fps | 96.7% |
| Ramshot Magnum | <<locked>> | 94% | 39,465 psi | 61% | 2746 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,746 psi | 43% | 1699 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,921 psi | 75% | 2835 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,803 psi | 70% | 2887 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,566 psi | 59% | 2707 fps | 98.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,333 psi | 57% | 2717 fps | 97.8% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,564 psi | 56% | 2749 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 52,040 psi | 80% | 2844 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,716 psi | 70% | 2782 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,485 psi | 73% | 2828 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 88% | 41,727 psi | 64% | 2766 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 42,598 psi | 66% | 2707 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,481 psi | 64% | 2687 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 50,227 psi | 77% | 2831 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,726 psi | 61% | 2667 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,036 psi | 72% | 2838 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 54,534 psi | 84% | 2920 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,905 psi | 72% | 2684 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,567 psi | 62% | 2628 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,350 psi | 64% | 2759 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 55,143 psi | 85% | 2818 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,992 psi | 71% | 2782 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 48,776 psi | 75% | 2822 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 34,896 psi | 54% | 2638 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 39,581 psi | 61% | 2690 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 52,475 psi | 81% | 2802 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,736 psi | 81% | 2818 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,976 psi | 68% | 2710 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,972 psi | 61% | 2684 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 90% | 38,986 psi | 60% | 2667 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 50,821 psi | 78% | 2812 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,218 psi | 60% | 2680 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 80% | 30,342 psi | 47% | 2516 fps | 96.6% |
| Vihtavuori N560 | 78.1 gr | 94% | 49,298 psi | 76% | 2972 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,044 psi | 60% | 2651 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 40,872 psi | 63% | 2743 fps | 96.9% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,831 psi | 40% | 2470 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 54,781 psi | 84% | 2930 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,872 psi | 64% | 2736 fps | 95.4% |
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 95 powders for .30 Nosler loaded with the .309 | 170gr | Reichenberg HDB Universal. Alliant Reloder-26 delivers the highest muzzle velocity at 3,159 fps; across all powders the maximum-charge window runs from 1,854 fps to 3,159 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 56–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.309" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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 .30 Nosler with the .309 | 170gr | Reichenberg HDB Universal 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.