Load Specifications
Load data in caliber 6.8 Western with .277 | 150gr | Brenneke TOG bullet and 83 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 2700 | <<locked>> | 82% | 58,291 psi | 90% | 2848 fps | 99.7% |
| Accurate 3100 | <<locked>> | 98% | 58,407 psi | 90% | 2910 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 58,479 psi | 90% | 2822 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 56,173 psi | 86% | 2894 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 56,826 psi | 87% | 3005 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 84% | 57,595 psi | 89% | 2854 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,087 psi | 88% | 2949 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 98% | 58,581 psi | 90% | 3009 fps | 98.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,730 psi | 70% | 2779 fps | 96.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,422 psi | 62% | 2733 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,521 psi | 85% | 2831 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,014 psi | 88% | 2949 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 58,262 psi | 90% | 2966 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,405 psi | 87% | 2936 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 58,160 psi | 89% | 3002 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,245 psi | 85% | 2920 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,952 psi | 78% | 2920 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,448 psi | 85% | 3009 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,956 psi | 88% | 2982 fps | 99.3% |
| Bofors RP3 | <<locked>> | 82% | 56,434 psi | 87% | 2844 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,007 psi | 72% | 2848 fps | 97.3% |
| Bofors RP5 | <<locked>> | 98% | 58,160 psi | 89% | 3002 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 55,492 psi | 85% | 2841 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,285 psi | 77% | 2867 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 82% | 56,565 psi | 87% | 2867 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 58,044 psi | 89% | 2949 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 57,174 psi | 88% | 2904 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 96% | 58,653 psi | 90% | 2949 fps | 98.2% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,130 psi | 88% | 2927 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,406 psi | 88% | 2871 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,908 psi | 77% | 2976 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 88% | 58,784 psi | 90% | 2989 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,985 psi | 57% | 1791 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,217 psi | 88% | 2838 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,869 psi | 87% | 2881 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,116 psi | 88% | 2867 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 56,449 psi | 87% | 2884 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,086 psi | 86% | 2874 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 98% | 55,840 psi | 86% | 2979 fps | 98.5% |
| Lovex S062 | <<locked>> | 82% | 57,566 psi | 89% | 2831 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,522 psi | 88% | 2864 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,550 psi | 85% | 2858 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,822 psi | 80% | 2815 fps | 99.9% |
| Norma 203B | <<locked>> | 82% | 58,276 psi | 90% | 2884 fps | 100% |
| Norma 204 | <<locked>> | 90% | 57,870 psi | 89% | 2936 fps | 99.3% |
| Norma MRP | <<locked>> | 96% | 58,030 psi | 89% | 3028 fps | 100% |
| Norma URP | <<locked>> | 90% | 58,378 psi | 90% | 2930 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,782 psi | 87% | 3005 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 90% | 57,116 psi | 88% | 2936 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,679 psi | 84% | 2933 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,724 psi | 58% | 1834 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,333 psi | 87% | 2854 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 57,914 psi | 89% | 2953 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,043 psi | 86% | 2917 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 58,363 psi | 90% | 3002 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,357 psi | 77% | 2972 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 84% | 56,536 psi | 87% | 2844 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 58,247 psi | 90% | 2913 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 94% | 55,767 psi | 86% | 2923 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 86% | 55,492 psi | 85% | 2841 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,522 psi | 88% | 2864 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,566 psi | 89% | 2831 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,550 psi | 85% | 2858 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 58,189 psi | 90% | 2904 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,869 psi | 87% | 2720 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,797 psi | 87% | 2818 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,303 psi | 85% | 2917 fps | 99.2% |
| Somchem S355 | <<locked>> | 84% | 56,231 psi | 87% | 2838 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,463 psi | 87% | 2858 fps | 97.8% |
| Somchem S365 | <<locked>> | 92% | 58,552 psi | 90% | 2933 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,260 psi | 87% | 2897 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 86% | 57,566 psi | 89% | 2812 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,550 psi | 87% | 2871 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,912 psi | 86% | 2874 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 82% | 58,262 psi | 90% | 2805 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 55,622 psi | 86% | 2874 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 57,783 psi | 89% | 2949 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 57,914 psi | 89% | 3022 fps | 98.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,432 psi | 82% | 2933 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,999 psi | 86% | 2828 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 58,363 psi | 90% | 2953 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 56,144 psi | 86% | 3054 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,434 psi | 87% | 2894 fps | 99.2% |
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% | 54,708 psi | 84% | 2795 fps | 99.4% |
| Accurate 3100 | <<locked>> | 80% | 31,676 psi | 49% | 2411 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 54,824 psi | 84% | 2772 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 42,714 psi | 66% | 2671 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 90% | 46,035 psi | 71% | 2818 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 50,995 psi | 78% | 2756 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,232 psi | 59% | 2595 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 90% | 44,556 psi | 69% | 2762 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 98% | 42,757 psi | 66% | 2717 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 94% | 33,402 psi | 51% | 2549 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,054 psi | 80% | 2779 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,118 psi | 63% | 2680 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,297 psi | 73% | 2802 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,189 psi | 59% | 2592 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,754 psi | 60% | 2648 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,472 psi | 47% | 2444 fps | 98.8% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,342 psi | 47% | 2457 fps | 95.7% |
| Alliant Reloder-26 | 55.5 gr | 80% | 32,967 psi | 51% | 2569 fps | 97.8% |
| Bofors RP15 | <<locked>> | 88% | 38,450 psi | 59% | 2641 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 52,823 psi | 81% | 2795 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 41,046 psi | 63% | 2730 fps | 95.6% |
| Bofors RP5 | <<locked>> | 86% | 38,754 psi | 60% | 2648 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 46,006 psi | 71% | 2680 fps | 98.4% |
| Hodgdon H1000 | <<locked>> | 94% | 41,017 psi | 63% | 2684 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 53,040 psi | 82% | 2812 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,556 psi | 69% | 2720 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 80% | 47,210 psi | 73% | 2736 fps | 98% |
| Hodgdon H4831 | <<locked>> | 88% | 44,628 psi | 69% | 2710 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,746 psi | 72% | 2749 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,841 psi | 60% | 2569 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 38,392 psi | 59% | 2717 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 43,787 psi | 67% | 2743 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,601 psi | 42% | 1598 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,650 psi | 83% | 2785 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,568 psi | 64% | 2612 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,297 psi | 73% | 2707 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 40,828 psi | 63% | 2621 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,540 psi | 67% | 2651 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 90% | 42,888 psi | 66% | 2740 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 54,027 psi | 83% | 2779 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,875 psi | 69% | 2654 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 43,279 psi | 67% | 2644 fps | 98.4% |
| Lovex S071 | <<locked>> | 84% | 31,183 psi | 48% | 2398 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 54,694 psi | 84% | 2835 fps | 100% |
| Norma 204 | <<locked>> | 80% | 41,205 psi | 63% | 2641 fps | 96.1% |
| Norma MRP | 55.2 gr | 82% | 35,360 psi | 54% | 2595 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 42,192 psi | 65% | 2664 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 42,511 psi | 65% | 2746 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 40,901 psi | 63% | 2651 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 88% | 35,360 psi | 54% | 2562 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,123 psi | 43% | 1637 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,649 psi | 81% | 2795 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,198 psi | 77% | 2844 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,583 psi | 66% | 2690 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,944 psi | 63% | 2703 fps | 99.4% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,172 psi | 54% | 2631 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 49,850 psi | 77% | 2743 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,511 psi | 65% | 2641 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 82% | 37,420 psi | 58% | 2575 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 46,006 psi | 71% | 2680 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,875 psi | 69% | 2654 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 54,027 psi | 83% | 2779 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,279 psi | 67% | 2644 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,995 psi | 78% | 2799 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,154 psi | 77% | 2628 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,034 psi | 68% | 2605 fps | 98.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,086 psi | 57% | 2572 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 49,734 psi | 77% | 2736 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 46,137 psi | 71% | 2680 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 39,015 psi | 60% | 2621 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,650 psi | 55% | 2507 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 47,645 psi | 73% | 2667 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,482 psi | 67% | 2657 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 37,579 psi | 58% | 2546 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 54,752 psi | 84% | 2759 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 43,047 psi | 66% | 2661 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 34,098 psi | 52% | 2520 fps | 98.7% |
| Vihtavuori N560 | 59.3 gr | 88% | 43,947 psi | 68% | 2772 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 94% | 43,511 psi | 67% | 2749 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,627 psi | 66% | 2625 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,556 psi | 69% | 2720 fps | 98.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,992 psi | 42% | 2438 fps | 98.5% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,318 psi | 57% | 2546 fps | 95% |
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 83 powders for 6.8 Western loaded with the .277 | 150gr | Brenneke TOG. Winchester StaBALL HD delivers the highest muzzle velocity at 3,054 fps; across all powders the maximum-charge window runs from 1,791 fps to 3,054 fps. ADI AR 2217 gives the best case fill at 100 %, and 83 of the 83 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 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 6.8 Western with the .277 | 150gr | Brenneke TOG 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.