Load Specifications
Load data in caliber 6.8 Western with .277 | 140gr | Berger Classic Hybrid Hunter bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 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 - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 58,233 psi | 90% | 2864 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 55,361 psi | 85% | 2887 fps | 99% |
| Accurate 3100ᴾ | <<locked>> | 100% | 58,001 psi | 89% | 2995 fps | 99.9% |
| Accurate 4064 | <<locked>> | 84% | 58,508 psi | 90% | 2917 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 56,043 psi | 86% | 2986 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 55,332 psi | 85% | 3084 fps | 97.9% |
| Accurate MAGPRO | <<locked>> | 98% | 56,420 psi | 87% | 3084 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 86% | 58,044 psi | 89% | 2953 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 56,855 psi | 87% | 3035 fps | 98.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 58,349 psi | 90% | 3091 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 58,102 psi | 89% | 3084 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 57,188 psi | 88% | 3031 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,724 psi | 86% | 2927 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,854 psi | 86% | 2949 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 56,840 psi | 87% | 3045 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 58,291 psi | 90% | 3064 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 56,405 psi | 87% | 3022 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 57,595 psi | 89% | 3084 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,476 psi | 84% | 3005 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,326 psi | 73% | 2943 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,969 psi | 85% | 3100 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,736 psi | 81% | 3005 fps | 98.2% |
| Bofors RP3 | <<locked>> | 84% | 56,811 psi | 87% | 2946 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 57,595 psi | 89% | 3084 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 55,840 psi | 86% | 2933 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,717 psi | 72% | 2874 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 84% | 56,797 psi | 87% | 2963 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 58,044 psi | 89% | 3041 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 88% | 57,377 psi | 88% | 2995 fps | 99% |
| Hodgdon H4831 | <<locked>> | 98% | 58,508 psi | 90% | 3028 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 98% | 57,246 psi | 88% | 3012 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 57,072 psi | 88% | 2963 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 58,189 psi | 90% | 2995 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,383 psi | 71% | 2982 fps | 97.8% |
| Hodgdon Superformance | <<locked>> | 88% | 54,723 psi | 84% | 3018 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,550 psi | 56% | 1841 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 58,508 psi | 90% | 2956 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 57,624 psi | 89% | 2936 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 56,536 psi | 87% | 2923 fps | 99.5% |
| IMR 4350 | <<locked>> | 92% | 57,101 psi | 88% | 2969 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 57,537 psi | 89% | 2963 fps | 99.6% |
| IMR 4831 | <<locked>> | 92% | 56,376 psi | 87% | 2976 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 57,290 psi | 88% | 2976 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 56,086 psi | 86% | 2956 fps | 97.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,782 psi | 86% | 3064 fps | 97.7% |
| Lovex S062 | <<locked>> | 84% | 57,885 psi | 89% | 2927 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 57,798 psi | 89% | 2956 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 55,680 psi | 86% | 2949 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,080 psi | 74% | 2841 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 55,158 psi | 85% | 2933 fps | 100% |
| Norma 204 | <<locked>> | 92% | 58,030 psi | 89% | 3025 fps | 98.8% |
| Norma MRP | <<locked>> | 98% | 57,566 psi | 89% | 3114 fps | 99.7% |
| Norma URP | <<locked>> | 92% | 58,378 psi | 90% | 3025 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,956 psi | 86% | 2959 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 56,304 psi | 87% | 3081 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 92% | 57,029 psi | 88% | 3028 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,662 psi | 78% | 2953 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,449 psi | 58% | 1890 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,608 psi | 87% | 2946 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 57,508 psi | 88% | 3054 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 56,072 psi | 86% | 3012 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 58,175 psi | 89% | 3097 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,470 psi | 71% | 2976 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 82% | 56,289 psi | 87% | 2890 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,942 psi | 88% | 2943 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 58,523 psi | 90% | 3005 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 96% | 55,666 psi | 86% | 3009 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 88% | 55,840 psi | 86% | 2933 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 57,798 psi | 89% | 2956 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 57,885 psi | 89% | 2927 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,680 psi | 86% | 2949 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 58,595 psi | 90% | 3005 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 57,450 psi | 88% | 2818 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 57,217 psi | 88% | 2907 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,201 psi | 85% | 3002 fps | 98.7% |
| Somchem S355 | <<locked>> | 86% | 56,695 psi | 87% | 2936 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 56,666 psi | 87% | 2940 fps | 97.1% |
| Somchem S365 | <<locked>> | 94% | 57,928 psi | 89% | 3022 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 56,217 psi | 86% | 2982 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 82% | 57,014 psi | 88% | 2848 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,884 psi | 88% | 2861 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 57,914 psi | 89% | 2907 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,608 psi | 87% | 2963 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,579 psi | 86% | 2956 fps | 99% |
| Vihtavuori N540 | <<locked>> | 84% | 58,668 psi | 90% | 2904 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,898 psi | 86% | 2969 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 57,072 psi | 88% | 3035 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 57,595 psi | 89% | 3104 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,168 psi | 76% | 2943 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 56,333 psi | 87% | 2927 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 58,363 psi | 90% | 3045 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,401 psi | 78% | 3081 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 56,492 psi | 87% | 2979 fps | 98.6% |
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% | 54,491 psi | 84% | 2812 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 51,663 psi | 79% | 2828 fps | 98.5% |
| Accurate 3100 | <<locked>> | 84% | 33,692 psi | 52% | 2539 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 51,619 psi | 79% | 2822 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,755 psi | 61% | 2697 fps | 98.9% |
| Accurate High Country | <<locked>> | 90% | 44,831 psi | 69% | 2890 fps | 95.3% |
| Accurate MAGPRO | <<locked>> | 94% | 49,008 psi | 75% | 2956 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 48,341 psi | 74% | 2799 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 41,075 psi | 63% | 2736 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 94% | 47,630 psi | 73% | 2900 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 54,302 psi | 84% | 3028 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 41,278 psi | 64% | 2740 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,153 psi | 76% | 2825 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,344 psi | 81% | 2894 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,493 psi | 59% | 2707 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,830 psi | 67% | 2831 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 40,843 psi | 63% | 2730 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 90% | 41,075 psi | 63% | 2779 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,355 psi | 44% | 2457 fps | 97.2% |
| Alliant Reloder-25 | <<locked>> | 88% | 32,126 psi | 49% | 2579 fps | 95.5% |
| Alliant Reloder-26 | 55 gr | 80% | 30,472 psi | 47% | 2572 fps | 95.6% |
| Bofors RP15 | <<locked>> | 92% | 40,727 psi | 63% | 2769 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 49,748 psi | 77% | 2838 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 41,075 psi | 63% | 2779 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 43,511 psi | 67% | 2710 fps | 97.1% |
| Hodgdon H1000 | <<locked>> | 98% | 43,642 psi | 67% | 2808 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 49,835 psi | 77% | 2851 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 41,756 psi | 64% | 2746 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 80% | 44,498 psi | 68% | 2766 fps | 96.7% |
| Hodgdon H4831 | <<locked>> | 92% | 47,674 psi | 73% | 2848 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,966 psi | 77% | 2890 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,172 psi | 56% | 2598 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 54,534 psi | 84% | 2940 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 40,654 psi | 63% | 2848 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 40,683 psi | 63% | 2759 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,325 psi | 42% | 1647 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 55,114 psi | 85% | 2907 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,850 psi | 78% | 2831 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 53,040 psi | 82% | 2864 fps | 99.2% |
| IMR 4350 | <<locked>> | 80% | 38,986 psi | 60% | 2631 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,817 psi | 69% | 2740 fps | 97.8% |
| IMR 4831 | <<locked>> | 80% | 38,159 psi | 59% | 2648 fps | 98.7% |
| IMR 4895 | <<locked>> | 80% | 53,722 psi | 83% | 2923 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,617 psi | 76% | 2848 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 94% | 45,498 psi | 70% | 2871 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 51,155 psi | 79% | 2828 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,395 psi | 65% | 2687 fps | 98.5% |
| Lovex S070 | <<locked>> | 80% | 40,727 psi | 63% | 2671 fps | 97.1% |
| Lovex S071 | <<locked>> | 88% | 32,793 psi | 50% | 2516 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 51,721 psi | 80% | 2881 fps | 100% |
| Norma 204 | <<locked>> | 82% | 41,336 psi | 64% | 2720 fps | 95.1% |
| Norma MRP | 57.4 gr | 86% | 37,768 psi | 58% | 2736 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 39,479 psi | 61% | 2690 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 80% | 52,446 psi | 81% | 2907 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 45,556 psi | 70% | 2884 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 38,261 psi | 59% | 2677 fps | 97.1% |
| Ramshot Magnum | <<locked>> | 92% | 37,797 psi | 58% | 2690 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,992 psi | 43% | 1690 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,879 psi | 77% | 2835 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,557 psi | 72% | 2884 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,668 psi | 61% | 2717 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,305 psi | 59% | 2726 fps | 98.2% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 37,434 psi | 58% | 2759 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 53,055 psi | 82% | 2841 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,891 psi | 72% | 2785 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 45,208 psi | 70% | 2772 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 86% | 39,813 psi | 61% | 2710 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 43,511 psi | 67% | 2710 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,395 psi | 65% | 2687 fps | 98.5% |
| Shooters World Precision | <<locked>> | 80% | 51,155 psi | 79% | 2828 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,727 psi | 63% | 2671 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,993 psi | 74% | 2838 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,587 psi | 73% | 2677 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,437 psi | 64% | 2631 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 42,250 psi | 65% | 2766 fps | 95.9% |
| Somchem S355 | <<locked>> | 80% | 46,934 psi | 72% | 2782 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 49,647 psi | 76% | 2822 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 35,868 psi | 55% | 2644 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 38,029 psi | 59% | 2641 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 53,330 psi | 82% | 2799 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 53,621 psi | 82% | 2815 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,918 psi | 69% | 2710 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,756 psi | 63% | 2687 fps | 99% |
| Vihtavuori N165 | <<locked>> | 90% | 39,929 psi | 61% | 2674 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 51,692 psi | 80% | 2808 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,176 psi | 62% | 2687 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 80% | 31,488 psi | 48% | 2533 fps | 97.2% |
| Vihtavuori N560 | 61.4 gr | 92% | 46,876 psi | 72% | 2910 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 98% | 45,948 psi | 71% | 2881 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,813 psi | 61% | 2654 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 41,756 psi | 64% | 2746 fps | 97.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,121 psi | 39% | 2428 fps | 96% |
| Winchester Supreme 780 | <<locked>> | 90% | 42,641 psi | 66% | 2736 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 93 powders for 6.8 Western loaded with the .277 | 140gr | Berger Classic Hybrid Hunter. Norma MRP delivers the highest muzzle velocity at 3,114 fps; across all powders the maximum-charge window runs from 1,841 fps to 3,114 fps. Accurate 3100 gives the best case fill at 100 %, and 93 of the 93 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 140.0 gr projectile in 0.277" calls for a 1:10.5 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. Norma MRP, Alliant Reloder-26, Vihtavuori N560 rank at the top here: for 6.8 Western with the .277 | 140gr | Berger Classic Hybrid Hunter 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.