Load Specifications
Load data in caliber 6.8 Western with .277 | 150gr | NorthFork Bonded Core bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP and Accurate MAGPRO.
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 2700 | <<locked>> | 82% | 57,377 psi | 88% | 2828 fps | 99.6% |
| Accurate 3100 | <<locked>> | 98% | 57,029 psi | 88% | 2887 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 57,334 psi | 88% | 2802 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 58,769 psi | 90% | 2927 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,506 psi | 85% | 2979 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 84% | 56,942 psi | 88% | 2841 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,666 psi | 86% | 2923 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 98% | 57,246 psi | 88% | 2982 fps | 98.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,537 psi | 61% | 2707 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 58,117 psi | 89% | 2861 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 58,233 psi | 90% | 2887 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,637 psi | 86% | 2927 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 57,217 psi | 88% | 2949 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 58,798 psi | 90% | 2966 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,811 psi | 87% | 2979 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,595 psi | 89% | 2946 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,690 psi | 76% | 2894 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 58,320 psi | 90% | 3045 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,622 psi | 86% | 2959 fps | 99.1% |
| Bofors RP3 | <<locked>> | 82% | 55,347 psi | 85% | 2828 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,803 psi | 70% | 2825 fps | 96.9% |
| Bofors RP5 | <<locked>> | 98% | 56,811 psi | 87% | 2979 fps | 99.3% |
| Bofors RP7 | <<locked>> | 88% | 57,986 psi | 89% | 2874 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,182 psi | 76% | 2841 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 82% | 55,564 psi | 85% | 2848 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,869 psi | 87% | 2927 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 56,275 psi | 87% | 2887 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 96% | 57,319 psi | 88% | 2923 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,115 psi | 86% | 2904 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,173 psi | 86% | 2851 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,718 psi | 75% | 2946 fps | 99% |
| Hodgdon Superformance | <<locked>> | 88% | 57,348 psi | 88% | 2966 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,927 psi | 57% | 1785 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,188 psi | 86% | 2818 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 58,682 psi | 90% | 2861 fps | 99.9% |
| IMR 4350 | <<locked>> | 90% | 55,782 psi | 86% | 2858 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,956 psi | 86% | 2844 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 55,492 psi | 85% | 2867 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 58,479 psi | 90% | 2907 fps | 98.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 58,450 psi | 90% | 3015 fps | 98.7% |
| Lovex S062 | <<locked>> | 82% | 56,811 psi | 87% | 2815 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,594 psi | 87% | 2844 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 57,986 psi | 89% | 2890 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,705 psi | 78% | 2792 fps | 99.8% |
| Norma 203B | <<locked>> | 82% | 57,522 psi | 88% | 2871 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,768 psi | 87% | 2913 fps | 99.1% |
| Norma MRP | <<locked>> | 96% | 56,579 psi | 87% | 3002 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 57,130 psi | 88% | 2910 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 58,653 psi | 90% | 2900 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,448 psi | 85% | 2979 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 55,999 psi | 86% | 2917 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,447 psi | 82% | 2910 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,652 psi | 58% | 1824 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,448 psi | 85% | 2835 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,492 psi | 87% | 2933 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,853 psi | 84% | 2897 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,217 psi | 88% | 2982 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,052 psi | 75% | 2943 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 82% | 58,523 psi | 90% | 2822 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 55,782 psi | 86% | 2828 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,217 psi | 88% | 2894 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 96% | 58,436 psi | 90% | 2956 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 88% | 57,986 psi | 89% | 2874 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,594 psi | 87% | 2844 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,811 psi | 87% | 2815 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,986 psi | 89% | 2890 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,261 psi | 88% | 2887 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,854 psi | 86% | 2700 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,014 psi | 86% | 2799 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 57,972 psi | 89% | 2953 fps | 99.4% |
| Somchem S355 | <<locked>> | 84% | 55,506 psi | 85% | 2822 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,303 psi | 85% | 2831 fps | 97.5% |
| Somchem S365 | <<locked>> | 92% | 57,203 psi | 88% | 2910 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,201 psi | 85% | 2874 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 86% | 56,623 psi | 87% | 2792 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,608 psi | 86% | 2851 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 58,407 psi | 90% | 2907 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 82% | 57,319 psi | 88% | 2789 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 58,392 psi | 90% | 2910 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,289 psi | 87% | 2923 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,608 psi | 87% | 2995 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,199 psi | 80% | 2907 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,984 psi | 85% | 2812 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,188 psi | 88% | 2930 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,172 psi | 83% | 3028 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,158 psi | 85% | 2867 fps | 99% |
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 2700 | <<locked>> | 80% | 53,809 psi | 83% | 2772 fps | 99.2% |
| Accurate 3100 | <<locked>> | 80% | 31,053 psi | 48% | 2395 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 53,969 psi | 83% | 2756 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,930 psi | 65% | 2654 fps | 99.6% |
| Accurate MAGPRO | 62 gr | 92% | 48,196 psi | 74% | 2854 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 50,256 psi | 77% | 2736 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 40,074 psi | 62% | 2631 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 90% | 43,845 psi | 67% | 2743 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 96% | 34,896 psi | 54% | 2585 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,285 psi | 79% | 2762 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 54,592 psi | 84% | 2831 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,408 psi | 62% | 2661 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,267 psi | 71% | 2779 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,972 psi | 61% | 2628 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,956 psi | 58% | 2625 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,878 psi | 46% | 2425 fps | 98.5% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,704 psi | 46% | 2431 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 32,198 psi | 50% | 2546 fps | 97.4% |
| Bofors RP15 | <<locked>> | 90% | 40,074 psi | 62% | 2671 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 51,793 psi | 80% | 2772 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 39,885 psi | 61% | 2700 fps | 95.1% |
| Bofors RP5 | <<locked>> | 86% | 37,956 psi | 58% | 2625 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 45,353 psi | 70% | 2661 fps | 98.1% |
| Hodgdon H1000 | <<locked>> | 94% | 40,248 psi | 62% | 2657 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 52,069 psi | 80% | 2792 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,642 psi | 67% | 2697 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 80% | 46,282 psi | 71% | 2713 fps | 97.8% |
| Hodgdon H4831 | <<locked>> | 90% | 46,717 psi | 72% | 2743 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,992 psi | 71% | 2730 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,869 psi | 58% | 2546 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,536 psi | 58% | 2690 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 42,714 psi | 66% | 2717 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,586 psi | 42% | 1591 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,895 psi | 81% | 2769 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 55,071 psi | 85% | 2805 fps | 99.7% |
| IMR 4350 | <<locked>> | 80% | 40,741 psi | 63% | 2589 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,644 psi | 72% | 2687 fps | 98.7% |
| IMR 4831 | <<locked>> | 80% | 40,147 psi | 62% | 2602 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,643 psi | 70% | 2687 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 92% | 44,860 psi | 69% | 2772 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 53,229 psi | 82% | 2762 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,193 psi | 68% | 2638 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 42,380 psi | 65% | 2621 fps | 98.2% |
| Lovex S071 | <<locked>> | 84% | 30,400 psi | 47% | 2375 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 53,925 psi | 83% | 2818 fps | 100% |
| Norma 204 | <<locked>> | 80% | 40,553 psi | 62% | 2621 fps | 95.7% |
| Norma MRP | 54.2 gr | 82% | 34,563 psi | 53% | 2572 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 41,278 psi | 64% | 2641 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 80% | 54,694 psi | 84% | 2844 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 41,568 psi | 64% | 2717 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 40,263 psi | 62% | 2635 fps | 98.3% |
| Ramshot Magnum | <<locked>> | 90% | 37,043 psi | 57% | 2595 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,094 psi | 43% | 1631 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,735 psi | 80% | 2776 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,095 psi | 76% | 2828 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,698 psi | 64% | 2671 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,132 psi | 62% | 2680 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,476 psi | 53% | 2605 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 55,143 psi | 85% | 2772 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 48,820 psi | 75% | 2723 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 41,727 psi | 64% | 2618 fps | 95% |
| Rottweil R 905 | <<locked>> | 84% | 39,204 psi | 60% | 2615 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 45,353 psi | 70% | 2661 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,193 psi | 68% | 2638 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 53,229 psi | 82% | 2762 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,380 psi | 65% | 2621 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,227 psi | 77% | 2782 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,414 psi | 76% | 2612 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,221 psi | 66% | 2582 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,856 psi | 60% | 2608 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 48,950 psi | 75% | 2720 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 45,469 psi | 70% | 2664 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 38,000 psi | 58% | 2598 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,853 psi | 54% | 2484 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 46,673 psi | 72% | 2648 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,757 psi | 66% | 2638 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 36,811 psi | 57% | 2523 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 53,824 psi | 83% | 2740 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,177 psi | 65% | 2641 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 33,373 psi | 51% | 2497 fps | 98.5% |
| Vihtavuori N560 | 59.5 gr | 90% | 45,948 psi | 71% | 2808 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 94% | 42,540 psi | 65% | 2726 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,814 psi | 64% | 2605 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,874 psi | 67% | 2700 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,527 psi | 41% | 2418 fps | 98.2% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,001 psi | 60% | 2575 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 86 powders for 6.8 Western loaded with the .277 | 150gr | NorthFork Bonded Core. Alliant Reloder-26 delivers the highest muzzle velocity at 3,045 fps; across all powders the maximum-charge window runs from 1,785 fps to 3,045 fps. ADI AR 2225 gives the best case fill at 100 %, and 86 of the 86 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 150.0 gr projectile in 0.277" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-23, Alliant Reloder-25 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. Vihtavuori N560, Norma MRP, Accurate MAGPRO rank at the top here: for 6.8 Western with the .277 | 150gr | NorthFork Bonded Core 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.