Load Specifications
Load data in caliber 6.8 Western with .277 | 150gr | Nosler Ballistic Silver Tip bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Alliant Reloder-26 and Norma MRP.
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% | 58,146 psi | 89% | 2844 fps | 99.7% |
| Accurate 3100 | <<locked>> | 98% | 57,740 psi | 89% | 2904 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 57,943 psi | 89% | 2815 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 55,724 psi | 86% | 2887 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 56,231 psi | 87% | 2995 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 84% | 57,493 psi | 88% | 2851 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,420 psi | 87% | 2940 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 98% | 57,914 psi | 89% | 2999 fps | 98.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,252 psi | 70% | 2766 fps | 96.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,219 psi | 62% | 2726 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 58,711 psi | 90% | 2874 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,550 psi | 87% | 2943 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 57,812 psi | 89% | 2959 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,072 psi | 86% | 2930 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,522 psi | 88% | 2995 fps | 99.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 58,392 psi | 90% | 2963 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,589 psi | 78% | 2913 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,056 psi | 85% | 3002 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,333 psi | 87% | 2976 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 55,970 psi | 86% | 2841 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,441 psi | 71% | 2838 fps | 97.2% |
| Bofors RP5 | <<locked>> | 98% | 57,522 psi | 88% | 2995 fps | 99.4% |
| Bofors RP7 | <<locked>> | 88% | 58,755 psi | 90% | 2890 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,719 psi | 76% | 2854 fps | 98% |
| Hodgdon H380 | <<locked>> | 82% | 56,159 psi | 86% | 2861 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 57,653 psi | 89% | 2943 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 56,768 psi | 87% | 2897 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 96% | 57,972 psi | 89% | 2940 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,782 psi | 87% | 2920 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,971 psi | 88% | 2864 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,603 psi | 76% | 2966 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 88% | 58,073 psi | 89% | 2979 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 57% | 1788 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,768 psi | 87% | 2831 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,507 psi | 87% | 2874 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,710 psi | 87% | 2861 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 56,028 psi | 86% | 2877 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,506 psi | 85% | 2864 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 98% | 55,521 psi | 85% | 2972 fps | 98.4% |
| Lovex S062 | <<locked>> | 82% | 57,116 psi | 88% | 2822 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,101 psi | 88% | 2858 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 58,755 psi | 90% | 2907 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,459 psi | 79% | 2808 fps | 99.8% |
| Norma 203B | <<locked>> | 82% | 58,102 psi | 89% | 2884 fps | 100% |
| Norma 204 | <<locked>> | 90% | 57,522 psi | 88% | 2933 fps | 99.2% |
| Norma MRP | <<locked>> | 96% | 57,319 psi | 88% | 3018 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 57,957 psi | 89% | 2927 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,188 psi | 86% | 2995 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 90% | 56,768 psi | 87% | 2930 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,389 psi | 84% | 2930 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,579 psi | 58% | 1831 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,941 psi | 86% | 2848 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 57,406 psi | 88% | 2949 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,651 psi | 86% | 2910 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,986 psi | 89% | 2999 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,835 psi | 77% | 2963 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 84% | 56,391 psi | 87% | 2841 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,914 psi | 89% | 2910 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 94% | 55,347 psi | 85% | 2917 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 88% | 58,755 psi | 90% | 2890 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,101 psi | 88% | 2858 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,116 psi | 88% | 2822 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 58,755 psi | 90% | 2907 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,783 psi | 89% | 2897 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,449 psi | 87% | 2713 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,420 psi | 87% | 2808 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 58,726 psi | 90% | 2969 fps | 99.5% |
| Somchem S355 | <<locked>> | 84% | 56,072 psi | 86% | 2835 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,869 psi | 86% | 2848 fps | 97.7% |
| Somchem S365 | <<locked>> | 92% | 58,117 psi | 89% | 2927 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,912 psi | 86% | 2887 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 86% | 57,188 psi | 88% | 2805 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,130 psi | 86% | 2864 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,288 psi | 85% | 2864 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 82% | 57,885 psi | 89% | 2802 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 55,245 psi | 85% | 2871 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 57,058 psi | 88% | 2936 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 57,305 psi | 88% | 3012 fps | 98.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,808 psi | 81% | 2923 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,680 psi | 86% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,653 psi | 89% | 2943 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,332 psi | 85% | 3045 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,796 psi | 86% | 2884 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% | 54,346 psi | 84% | 2785 fps | 99.3% |
| Accurate 3100 | <<locked>> | 80% | 31,531 psi | 49% | 2408 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 54,607 psi | 84% | 2769 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 42,496 psi | 65% | 2667 fps | 99.7% |
| Accurate MAGPRO | 62.7 gr | 92% | 48,878 psi | 75% | 2871 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 50,792 psi | 78% | 2753 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,101 psi | 59% | 2592 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 90% | 44,251 psi | 68% | 2753 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 98% | 42,279 psi | 65% | 2707 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 94% | 33,170 psi | 51% | 2543 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,648 psi | 79% | 2772 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,727 psi | 63% | 2671 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,891 psi | 72% | 2795 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,043 psi | 59% | 2589 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,406 psi | 59% | 2641 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,313 psi | 47% | 2441 fps | 98.7% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,211 psi | 46% | 2454 fps | 95.6% |
| Alliant Reloder-26 | 55.1 gr | 80% | 32,619 psi | 50% | 2559 fps | 97.6% |
| Bofors RP15 | <<locked>> | 88% | 38,101 psi | 59% | 2631 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 52,402 psi | 81% | 2785 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 40,495 psi | 62% | 2717 fps | 95.4% |
| Bofors RP5 | <<locked>> | 86% | 38,406 psi | 59% | 2641 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 45,629 psi | 70% | 2671 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 40,553 psi | 62% | 2671 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 52,634 psi | 81% | 2808 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,179 psi | 68% | 2713 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 80% | 46,804 psi | 72% | 2730 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 88% | 44,295 psi | 68% | 2703 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,412 psi | 71% | 2743 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,450 psi | 59% | 2562 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 38,072 psi | 59% | 2710 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 43,424 psi | 67% | 2733 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,630 psi | 43% | 1598 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,461 psi | 82% | 2782 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,234 psi | 63% | 2602 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,123 psi | 72% | 2700 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 40,654 psi | 63% | 2618 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 88% | 46,064 psi | 71% | 2700 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 90% | 42,337 psi | 65% | 2726 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 53,824 psi | 83% | 2776 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,730 psi | 69% | 2651 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 42,859 psi | 66% | 2638 fps | 98.3% |
| Lovex S071 | <<locked>> | 84% | 30,850 psi | 47% | 2392 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 54,534 psi | 84% | 2831 fps | 100% |
| Norma 204 | <<locked>> | 80% | 41,031 psi | 63% | 2635 fps | 96% |
| Norma MRP | 54.9 gr | 82% | 35,201 psi | 54% | 2592 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 41,800 psi | 64% | 2654 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 42,163 psi | 65% | 2736 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 40,756 psi | 63% | 2651 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 90% | 37,594 psi | 58% | 2615 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,137 psi | 43% | 1634 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,228 psi | 80% | 2789 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,719 psi | 76% | 2838 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,206 psi | 65% | 2684 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,596 psi | 62% | 2697 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,940 psi | 54% | 2625 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 49,414 psi | 76% | 2736 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,177 psi | 65% | 2631 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 82% | 37,260 psi | 57% | 2572 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 45,629 psi | 70% | 2671 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,730 psi | 69% | 2651 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 53,824 psi | 83% | 2776 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,859 psi | 66% | 2638 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,821 psi | 78% | 2795 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,966 psi | 77% | 2625 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,685 psi | 67% | 2598 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 36,927 psi | 57% | 2566 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 49,530 psi | 76% | 2733 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 45,832 psi | 71% | 2677 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 38,595 psi | 59% | 2615 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,331 psi | 54% | 2497 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 47,224 psi | 73% | 2657 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,308 psi | 67% | 2654 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 37,231 psi | 57% | 2536 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 54,360 psi | 84% | 2753 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,685 psi | 66% | 2654 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 33,910 psi | 52% | 2516 fps | 98.7% |
| Vihtavuori N560 | <<locked>> | 88% | 43,627 psi | 67% | 2766 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 94% | 43,163 psi | 66% | 2743 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,264 psi | 65% | 2618 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,396 psi | 68% | 2717 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,876 psi | 41% | 2434 fps | 98.5% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,624 psi | 61% | 2595 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 83 powders for 6.8 Western loaded with the .277 | 150gr | Nosler Ballistic Silver Tip. Winchester StaBALL HD delivers the highest muzzle velocity at 3,045 fps; across all powders the maximum-charge window runs from 1,788 fps to 3,045 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 1:10.0 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. Accurate MAGPRO, Alliant Reloder-26, Norma MRP rank at the top here: for 6.8 Western with the .277 | 150gr | Nosler Ballistic Silver Tip 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.