Load Specifications
Load data in caliber 6.8 Western with .277 | 150gr | Alaska Bullet Works Kodiak SP SPBC bullet and 84 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 58,262 psi | 90% | 2844 fps | 99.7% |
| Accurate 3100 | <<locked>> | 98% | 58,131 psi | 89% | 2907 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 58,378 psi | 90% | 2818 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 56,173 psi | 86% | 2894 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 56,550 psi | 87% | 2999 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 84% | 57,595 psi | 89% | 2854 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,768 psi | 87% | 2943 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 98% | 58,262 psi | 90% | 3005 fps | 98.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,469 psi | 70% | 2769 fps | 96.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,248 psi | 62% | 2726 fps | 98.1% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 56,884 psi | 88% | 2940 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,201 psi | 85% | 2825 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,637 psi | 87% | 2943 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 58,247 psi | 90% | 2966 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,144 psi | 86% | 2930 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,870 psi | 89% | 2999 fps | 99.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 58,784 psi | 90% | 2966 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,691 psi | 78% | 2913 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,448 psi | 85% | 3009 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,695 psi | 87% | 2979 fps | 99.3% |
| Bofors RP3 | <<locked>> | 82% | 56,376 psi | 87% | 2844 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,746 psi | 72% | 2844 fps | 97.2% |
| Bofors RP5 | <<locked>> | 98% | 57,870 psi | 89% | 2999 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 55,448 psi | 85% | 2841 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,009 psi | 77% | 2861 fps | 98.1% |
| Hodgdon H380 | <<locked>> | 82% | 56,536 psi | 87% | 2867 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 57,754 psi | 89% | 2943 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 57,159 psi | 88% | 2904 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 96% | 58,334 psi | 90% | 2943 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,145 psi | 88% | 2923 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,101 psi | 88% | 2867 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,632 psi | 76% | 2969 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 88% | 58,436 psi | 90% | 2986 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,869 psi | 57% | 1788 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,174 psi | 88% | 2838 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,579 psi | 87% | 2874 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,782 psi | 87% | 2861 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 56,434 psi | 87% | 2884 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,796 psi | 86% | 2871 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 98% | 55,869 psi | 86% | 2979 fps | 98.5% |
| Lovex S062 | <<locked>> | 82% | 57,522 psi | 88% | 2828 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,217 psi | 88% | 2858 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,506 psi | 85% | 2858 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,793 psi | 80% | 2815 fps | 99.9% |
| Norma 203B | <<locked>> | 82% | 58,247 psi | 90% | 2884 fps | 100% |
| Norma 204 | <<locked>> | 90% | 57,609 psi | 89% | 2930 fps | 99.2% |
| Norma MRP | <<locked>> | 96% | 57,696 psi | 89% | 3022 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 58,073 psi | 89% | 2927 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,463 psi | 87% | 2999 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 90% | 56,855 psi | 87% | 2930 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,694 psi | 84% | 2933 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,608 psi | 58% | 1831 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,043 psi | 86% | 2848 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 57,580 psi | 89% | 2949 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,014 psi | 86% | 2917 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 58,059 psi | 89% | 2999 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,125 psi | 77% | 2966 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 84% | 56,521 psi | 87% | 2841 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 58,233 psi | 90% | 2913 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 94% | 55,753 psi | 86% | 2923 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 55,448 psi | 85% | 2841 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,217 psi | 88% | 2858 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,522 psi | 88% | 2828 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,506 psi | 85% | 2858 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 58,175 psi | 89% | 2900 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,826 psi | 87% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,782 psi | 87% | 2815 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 58,798 psi | 90% | 2969 fps | 99.5% |
| Somchem S355 | <<locked>> | 84% | 56,202 psi | 86% | 2835 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,188 psi | 86% | 2851 fps | 97.7% |
| Somchem S365 | <<locked>> | 92% | 58,218 psi | 90% | 2927 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,231 psi | 87% | 2894 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 86% | 57,551 psi | 89% | 2808 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,507 psi | 87% | 2867 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,637 psi | 86% | 2871 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 82% | 58,247 psi | 90% | 2805 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 55,593 psi | 86% | 2874 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 57,479 psi | 88% | 2943 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 57,624 psi | 89% | 3015 fps | 98.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,142 psi | 82% | 2927 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,999 psi | 86% | 2828 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 58,044 psi | 89% | 2949 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,811 psi | 86% | 3051 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,159 psi | 86% | 2887 fps | 99.1% |
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% | 54,694 psi | 84% | 2792 fps | 99.4% |
| Accurate 3100 | <<locked>> | 80% | 31,633 psi | 49% | 2408 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 54,781 psi | 84% | 2772 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 42,670 psi | 66% | 2671 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 90% | 45,774 psi | 70% | 2808 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 50,937 psi | 78% | 2753 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,189 psi | 59% | 2592 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 90% | 44,541 psi | 69% | 2759 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 98% | 42,525 psi | 65% | 2710 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 94% | 33,373 psi | 51% | 2546 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 38,522 psi | 59% | 2598 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,040 psi | 80% | 2779 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,046 psi | 63% | 2677 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,007 psi | 72% | 2795 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,159 psi | 59% | 2592 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,725 psi | 60% | 2644 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,443 psi | 47% | 2441 fps | 98.7% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,298 psi | 47% | 2454 fps | 95.7% |
| Alliant Reloder-26 | 55.4 gr | 80% | 32,895 psi | 51% | 2566 fps | 97.7% |
| Bofors RP15 | <<locked>> | 88% | 38,435 psi | 59% | 2638 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 52,794 psi | 81% | 2792 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 40,814 psi | 63% | 2723 fps | 95.5% |
| Bofors RP5 | <<locked>> | 86% | 38,725 psi | 60% | 2644 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 45,992 psi | 71% | 2677 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 40,828 psi | 63% | 2677 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 52,736 psi | 81% | 2808 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,527 psi | 69% | 2717 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 80% | 47,152 psi | 73% | 2733 fps | 98% |
| Hodgdon H4831 | <<locked>> | 88% | 44,628 psi | 69% | 2707 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,717 psi | 72% | 2749 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,580 psi | 59% | 2562 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 38,348 psi | 59% | 2713 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 43,540 psi | 67% | 2736 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,688 psi | 43% | 1601 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,621 psi | 82% | 2785 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,350 psi | 64% | 2605 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,253 psi | 73% | 2703 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 40,785 psi | 63% | 2618 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,511 psi | 67% | 2651 fps | 95% |
| IMR 7828 SSC | <<locked>> | 90% | 42,656 psi | 66% | 2733 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 53,983 psi | 83% | 2776 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,860 psi | 69% | 2654 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 43,207 psi | 66% | 2641 fps | 98.4% |
| Lovex S071 | <<locked>> | 84% | 31,154 psi | 48% | 2398 fps | 95.5% |
| Norma 203B | <<locked>> | 80% | 54,679 psi | 84% | 2831 fps | 100% |
| Norma 204 | <<locked>> | 80% | 41,162 psi | 63% | 2638 fps | 96% |
| Norma MRP | 55.1 gr | 82% | 35,302 psi | 54% | 2595 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 42,148 psi | 65% | 2661 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 42,467 psi | 65% | 2743 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 40,872 psi | 63% | 2651 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 88% | 35,157 psi | 54% | 2556 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,195 psi | 43% | 1637 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,634 psi | 81% | 2795 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,879 psi | 77% | 2841 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,554 psi | 65% | 2690 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,901 psi | 63% | 2700 fps | 99.4% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,201 psi | 54% | 2631 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 49,777 psi | 77% | 2743 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,250 psi | 65% | 2631 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 82% | 37,391 psi | 58% | 2575 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 45,992 psi | 71% | 2677 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,860 psi | 69% | 2654 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 53,983 psi | 83% | 2776 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,207 psi | 66% | 2641 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,937 psi | 78% | 2795 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,125 psi | 77% | 2628 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,816 psi | 67% | 2602 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,043 psi | 57% | 2569 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 49,661 psi | 76% | 2736 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 46,108 psi | 71% | 2680 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 38,754 psi | 60% | 2615 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,621 psi | 55% | 2507 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 47,601 psi | 73% | 2664 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,453 psi | 67% | 2654 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 37,521 psi | 58% | 2543 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 54,462 psi | 84% | 2753 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,786 psi | 66% | 2657 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 34,040 psi | 52% | 2516 fps | 98.7% |
| Vihtavuori N560 | 59.1 gr | 88% | 43,714 psi | 67% | 2766 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 94% | 43,497 psi | 67% | 2749 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,380 psi | 65% | 2618 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,527 psi | 69% | 2717 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,963 psi | 41% | 2438 fps | 98.5% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,726 psi | 61% | 2598 fps | 95.8% |
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 84 powders for 6.8 Western loaded with the .277 | 150gr | Alaska Bullet Works Kodiak SP SPBC. Winchester StaBALL HD delivers the highest muzzle velocity at 3,051 fps; across all powders the maximum-charge window runs from 1,788 fps to 3,051 fps. ADI AR 2217 gives the best case fill at 100 %, and 84 of the 84 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 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 6.8 Western with the .277 | 150gr | Alaska Bullet Works Kodiak SP SPBC 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.