Load Specifications
Load data in caliber 6.8 Western with .277 | 150gr | Hornady Interbond bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 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% | 57,406 psi | 88% | 2828 fps | 99.6% |
| Accurate 3100 | <<locked>> | 98% | 57,029 psi | 88% | 2887 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 57,305 psi | 88% | 2805 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 58,798 psi | 90% | 2927 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,550 psi | 85% | 2979 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 84% | 56,956 psi | 88% | 2841 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,695 psi | 86% | 2923 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 98% | 57,290 psi | 88% | 2986 fps | 98.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,523 psi | 61% | 2707 fps | 97.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 56,115 psi | 86% | 2923 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 58,160 psi | 89% | 2864 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 58,262 psi | 90% | 2887 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,666 psi | 86% | 2927 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 57,261 psi | 88% | 2949 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,376 psi | 85% | 2917 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,840 psi | 87% | 2979 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,624 psi | 89% | 2949 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,719 psi | 76% | 2897 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 58,363 psi | 90% | 3048 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,666 psi | 86% | 2963 fps | 99.1% |
| Bofors RP3 | <<locked>> | 82% | 55,376 psi | 85% | 2828 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,774 psi | 70% | 2825 fps | 96.9% |
| Bofors RP5 | <<locked>> | 98% | 56,840 psi | 87% | 2979 fps | 99.3% |
| Bofors RP7 | <<locked>> | 88% | 57,986 psi | 89% | 2874 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,211 psi | 76% | 2841 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 82% | 55,593 psi | 86% | 2848 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,898 psi | 88% | 2927 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 56,289 psi | 87% | 2887 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 96% | 57,348 psi | 88% | 2927 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,144 psi | 86% | 2907 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,144 psi | 86% | 2851 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,747 psi | 75% | 2949 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% | 2822 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 58,711 psi | 90% | 2861 fps | 99.9% |
| IMR 4350 | <<locked>> | 90% | 55,811 psi | 86% | 2858 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,985 psi | 86% | 2848 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 55,521 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% | 56,550 psi | 87% | 2812 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,362 psi | 87% | 2844 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 58,015 psi | 89% | 2890 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,749 psi | 78% | 2795 fps | 99.8% |
| Norma 203B | <<locked>> | 82% | 57,551 psi | 89% | 2874 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,797 psi | 87% | 2917 fps | 99.1% |
| Norma MRP | <<locked>> | 96% | 56,623 psi | 87% | 3005 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 57,159 psi | 88% | 2910 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 58,363 psi | 90% | 2897 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,492 psi | 85% | 2979 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 56,028 psi | 86% | 2917 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,490 psi | 82% | 2913 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,652 psi | 58% | 1824 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,172 psi | 85% | 2831 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,463 psi | 87% | 2933 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,882 psi | 84% | 2897 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,913 psi | 88% | 2979 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,037 psi | 75% | 2946 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 82% | 58,523 psi | 90% | 2822 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 55,492 psi | 85% | 2825 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,217 psi | 88% | 2894 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 96% | 58,479 psi | 90% | 2959 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 88% | 57,986 psi | 89% | 2874 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,362 psi | 87% | 2844 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,550 psi | 87% | 2812 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 58,015 psi | 89% | 2890 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,290 psi | 88% | 2887 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,883 psi | 86% | 2703 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,970 psi | 86% | 2799 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 58,001 psi | 89% | 2956 fps | 99.4% |
| Somchem S355 | <<locked>> | 84% | 55,506 psi | 85% | 2825 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,332 psi | 85% | 2831 fps | 97.5% |
| Somchem S365 | <<locked>> | 92% | 57,246 psi | 88% | 2913 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,230 psi | 85% | 2877 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 86% | 56,652 psi | 87% | 2795 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,637 psi | 86% | 2854 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 58,450 psi | 90% | 2907 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 82% | 57,348 psi | 88% | 2792 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 58,421 psi | 90% | 2910 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,260 psi | 87% | 2927 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,565 psi | 87% | 2995 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,156 psi | 80% | 2907 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,013 psi | 85% | 2815 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,159 psi | 88% | 2930 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,157 psi | 83% | 3031 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,187 psi | 85% | 2871 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% | 53,838 psi | 83% | 2776 fps | 99.2% |
| Accurate 3100 | <<locked>> | 80% | 31,082 psi | 48% | 2395 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 53,940 psi | 83% | 2759 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,945 psi | 65% | 2654 fps | 99.6% |
| Accurate MAGPRO | 62 gr | 92% | 48,225 psi | 74% | 2854 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 50,270 psi | 77% | 2740 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 40,089 psi | 62% | 2635 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 90% | 43,613 psi | 67% | 2736 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 96% | 34,896 psi | 54% | 2585 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 37,942 psi | 58% | 2582 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,314 psi | 79% | 2766 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 54,607 psi | 84% | 2835 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,379 psi | 62% | 2661 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,282 psi | 71% | 2782 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,972 psi | 61% | 2628 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,971 psi | 58% | 2625 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,907 psi | 46% | 2428 fps | 98.5% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,704 psi | 46% | 2434 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 32,213 psi | 50% | 2546 fps | 97.4% |
| Bofors RP15 | <<locked>> | 88% | 37,695 psi | 58% | 2618 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 51,822 psi | 80% | 2776 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 39,914 psi | 61% | 2703 fps | 95.1% |
| Bofors RP5 | <<locked>> | 86% | 37,971 psi | 58% | 2625 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 45,339 psi | 70% | 2661 fps | 98.2% |
| Hodgdon H1000 | <<locked>> | 94% | 40,045 psi | 62% | 2654 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 52,040 psi | 80% | 2795 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,627 psi | 67% | 2700 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 80% | 46,296 psi | 71% | 2713 fps | 97.8% |
| Hodgdon H4831 | <<locked>> | 90% | 46,746 psi | 72% | 2746 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,745 psi | 70% | 2726 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,898 psi | 58% | 2549 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,565 psi | 58% | 2690 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 42,728 psi | 66% | 2717 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,586 psi | 42% | 1594 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,910 psi | 81% | 2772 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 55,100 psi | 85% | 2808 fps | 99.7% |
| IMR 4350 | <<locked>> | 80% | 40,756 psi | 63% | 2589 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,630 psi | 72% | 2687 fps | 98.7% |
| IMR 4831 | <<locked>> | 80% | 40,161 psi | 62% | 2605 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,672 psi | 70% | 2690 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 92% | 44,657 psi | 69% | 2772 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 53,258 psi | 82% | 2762 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,193 psi | 68% | 2638 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 42,395 psi | 65% | 2625 fps | 98.2% |
| Lovex S071 | <<locked>> | 84% | 30,414 psi | 47% | 2375 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 53,940 psi | 83% | 2818 fps | 100% |
| Norma 204 | <<locked>> | 80% | 40,364 psi | 62% | 2618 fps | 95.7% |
| Norma MRP | 54.2 gr | 82% | 34,577 psi | 53% | 2575 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 41,249 psi | 63% | 2641 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 80% | 54,694 psi | 84% | 2844 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 41,539 psi | 64% | 2717 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 40,089 psi | 62% | 2631 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 90% | 37,043 psi | 57% | 2598 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,108 psi | 43% | 1631 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,764 psi | 80% | 2779 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,124 psi | 76% | 2828 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,669 psi | 64% | 2671 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,161 psi | 62% | 2684 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,461 psi | 53% | 2605 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 55,114 psi | 85% | 2776 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 48,820 psi | 75% | 2723 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 41,698 psi | 64% | 2618 fps | 95% |
| Rottweil R 905 | <<locked>> | 84% | 39,218 psi | 60% | 2615 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 45,339 psi | 70% | 2661 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,193 psi | 68% | 2638 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 53,258 psi | 82% | 2762 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,395 psi | 65% | 2625 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,024 psi | 77% | 2779 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,414 psi | 76% | 2612 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,236 psi | 67% | 2585 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,870 psi | 60% | 2608 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 48,965 psi | 75% | 2723 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 45,252 psi | 70% | 2661 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 38,014 psi | 58% | 2602 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,882 psi | 54% | 2484 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 46,702 psi | 72% | 2648 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,772 psi | 66% | 2641 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 36,840 psi | 57% | 2526 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 53,853 psi | 83% | 2743 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,206 psi | 65% | 2641 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 33,388 psi | 51% | 2500 fps | 98.5% |
| Vihtavuori N560 | 59.5 gr | 90% | 45,977 psi | 71% | 2808 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 94% | 42,569 psi | 65% | 2730 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,626 psi | 64% | 2605 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,874 psi | 67% | 2703 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,382 psi | 41% | 2415 fps | 98.1% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,015 psi | 60% | 2579 fps | 95.5% |
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 87 powders for 6.8 Western loaded with the .277 | 150gr | Hornady Interbond. Alliant Reloder-26 delivers the highest muzzle velocity at 3,048 fps; across all powders the maximum-charge window runs from 1,785 fps to 3,048 fps. ADI AR 2225 gives the best case fill at 100 %, and 87 of the 87 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 1:9.5 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. Norma MRP, Vihtavuori N560, Accurate MAGPRO rank at the top here: for 6.8 Western with the .277 | 150gr | Hornady Interbond 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.