Load Specifications
Load data in caliber 6.8 Western with .277 | 130gr | Remington BronzePoint bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Accurate High Country.
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 2495 | <<locked>> | 82% | 56,550 psi | 87% | 2949 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 57,682 psi | 89% | 3025 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,173 psi | 86% | 3068 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 57,014 psi | 88% | 3009 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 58,349 psi | 90% | 3123 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 57,508 psi | 88% | 3222 fps | 97.7% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 58,769 psi | 90% | 3222 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 86% | 56,956 psi | 88% | 3041 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,216 psi | 85% | 3107 fps | 98% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 56,681 psi | 87% | 3159 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,478 psi | 87% | 3173 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 55,521 psi | 85% | 3107 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,841 psi | 89% | 3068 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 58,001 psi | 89% | 3091 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,143 psi | 85% | 3127 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 56,594 psi | 87% | 3150 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 58,378 psi | 90% | 3153 fps | 98.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,782 psi | 86% | 3156 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,794 psi | 81% | 3087 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,919 psi | 71% | 3005 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 56,927 psi | 88% | 3232 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,140 psi | 79% | 3074 fps | 97.3% |
| Bofors RP3 | <<locked>> | 84% | 55,201 psi | 85% | 3031 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,782 psi | 86% | 3156 fps | 98.3% |
| Bofors RP7 | <<locked>> | 90% | 58,175 psi | 89% | 3071 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 84% | 55,463 psi | 85% | 3045 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 56,565 psi | 87% | 3117 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 56,173 psi | 86% | 3077 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 98% | 56,869 psi | 87% | 3100 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,680 psi | 86% | 3081 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,550 psi | 85% | 3048 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,811 psi | 87% | 3084 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,904 psi | 69% | 3035 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 90% | 57,072 psi | 88% | 3159 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,390 psi | 56% | 1916 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,203 psi | 88% | 3045 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,347 psi | 87% | 3025 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 58,813 psi | 90% | 3058 fps | 99.4% |
| IMR 4350 | <<locked>> | 92% | 55,492 psi | 85% | 3045 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,028 psi | 86% | 3038 fps | 99.1% |
| IMR 4831 | <<locked>> | 94% | 58,581 psi | 90% | 3114 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,912 psi | 86% | 3064 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 58,421 psi | 90% | 3091 fps | 97% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,157 psi | 83% | 3130 fps | 96.7% |
| Lovex S060 | <<locked>> | 82% | 57,609 psi | 89% | 3005 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,565 psi | 87% | 3015 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,420 psi | 87% | 3038 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 57,740 psi | 89% | 3081 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,543 psi | 72% | 2907 fps | 98.5% |
| Norma 201 | <<locked>> | 82% | 57,783 psi | 89% | 3025 fps | 100% |
| Norma 202 | <<locked>> | 82% | 58,552 psi | 90% | 3022 fps | 100% |
| Norma 203B | <<locked>> | 84% | 57,290 psi | 88% | 3074 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,420 psi | 87% | 3100 fps | 98% |
| Norma MRP | <<locked>> | 98% | 55,506 psi | 85% | 3182 fps | 99.2% |
| Norma URP | <<locked>> | 92% | 56,637 psi | 87% | 3104 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 58,363 psi | 90% | 3100 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,636 psi | 84% | 3150 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 92% | 55,419 psi | 85% | 3104 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,994 psi | 75% | 3015 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,231 psi | 57% | 1965 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,317 psi | 85% | 3028 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,970 psi | 86% | 3143 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 58,305 psi | 90% | 3150 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 56,565 psi | 87% | 3176 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,918 psi | 69% | 3028 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 84% | 58,450 psi | 90% | 3028 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,332 psi | 85% | 3025 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,971 psi | 88% | 3077 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 98% | 57,682 psi | 89% | 3140 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 90% | 58,175 psi | 89% | 3071 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,420 psi | 87% | 3038 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 56,565 psi | 87% | 3015 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 57,740 psi | 89% | 3081 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,014 psi | 88% | 3091 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,580 psi | 89% | 3054 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 58,566 psi | 90% | 2956 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,956 psi | 86% | 2904 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,043 psi | 86% | 2989 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 57,188 psi | 88% | 3136 fps | 98.5% |
| Somchem S335 | <<locked>> | 82% | 58,131 psi | 89% | 2946 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 58,798 psi | 90% | 3074 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,187 psi | 85% | 3009 fps | 96.1% |
| Somchem S365 | <<locked>> | 94% | 56,130 psi | 86% | 3107 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 58,363 psi | 90% | 3114 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 82% | 55,550 psi | 85% | 2936 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,651 psi | 86% | 2949 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,536 psi | 87% | 2992 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,984 psi | 85% | 3041 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,925 psi | 83% | 3025 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 84% | 57,421 psi | 88% | 2995 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 58,030 psi | 89% | 3107 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 55,187 psi | 85% | 3110 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,738 psi | 86% | 3173 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 58,813 psi | 90% | 3064 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,797 psi | 87% | 3123 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,269 psi | 74% | 3150 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,957 psi | 89% | 3064 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 58,726 psi | 90% | 3110 fps | 98.5% |
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% | 52,953 psi | 81% | 2897 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,662 psi | 78% | 2907 fps | 97.8% |
| Accurate 3100 | <<locked>> | 86% | 34,780 psi | 54% | 2651 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 50,183 psi | 77% | 2904 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,566 psi | 59% | 2762 fps | 98.2% |
| Accurate High Country | 63.1 gr | 92% | 46,586 psi | 72% | 3022 fps | 95.1% |
| Accurate MAGPRO | <<locked>> | 98% | 54,679 psi | 84% | 3153 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 47,166 psi | 73% | 2877 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 45,353 psi | 70% | 2920 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 96% | 49,632 psi | 76% | 3031 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,562 psi | 81% | 3107 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 45,469 psi | 70% | 2917 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,834 psi | 74% | 2904 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,126 psi | 79% | 2979 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,347 psi | 57% | 2769 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,395 psi | 65% | 2900 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 44,962 psi | 69% | 2910 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,598 psi | 66% | 2904 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,412 psi | 42% | 2503 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,228 psi | 51% | 2690 fps | 95% |
| Alliant Reloder-26 | 57.9 gr | 82% | 31,517 psi | 48% | 2684 fps | 95.2% |
| Bofors RP15 | <<locked>> | 96% | 44,846 psi | 69% | 2949 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 48,211 psi | 74% | 2913 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,598 psi | 66% | 2904 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 42,366 psi | 65% | 2779 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 80% | 48,573 psi | 75% | 2927 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 40,321 psi | 62% | 2808 fps | 96.1% |
| Hodgdon H4350 | <<locked>> | 80% | 43,178 psi | 66% | 2831 fps | 95.5% |
| Hodgdon H4831 | <<locked>> | 96% | 53,185 psi | 82% | 3038 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 52,098 psi | 80% | 3022 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,998 psi | 54% | 2661 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,084 psi | 82% | 3025 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 42,105 psi | 65% | 2966 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 39,450 psi | 61% | 2818 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,224 psi | 42% | 1716 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,679 psi | 83% | 2989 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,588 psi | 76% | 2913 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,953 psi | 80% | 2946 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 40,524 psi | 62% | 2759 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,656 psi | 67% | 2808 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 36,898 psi | 57% | 2710 fps | 97.8% |
| IMR 4895 | <<locked>> | 80% | 52,475 psi | 81% | 3009 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,343 psi | 79% | 2972 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 98% | 50,662 psi | 78% | 3068 fps | 95.8% |
| Lovex S060 | <<locked>> | 80% | 54,172 psi | 83% | 2953 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,850 psi | 77% | 2910 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,263 psi | 63% | 2756 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 39,566 psi | 61% | 2736 fps | 96.1% |
| Lovex S071 | <<locked>> | 92% | 36,056 psi | 55% | 2684 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 54,244 psi | 83% | 2972 fps | 100% |
| Norma 202 | <<locked>> | 80% | 54,984 psi | 85% | 2969 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,502 psi | 78% | 2963 fps | 100% |
| Norma 204 | <<locked>> | 86% | 46,137 psi | 71% | 2913 fps | 95.8% |
| Norma MRP | <<locked>> | 88% | 39,015 psi | 60% | 2851 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 38,218 psi | 59% | 2753 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 50,937 psi | 78% | 2986 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 47,311 psi | 73% | 3009 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 37,101 psi | 57% | 2736 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 96% | 42,221 psi | 65% | 2877 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,847 psi | 43% | 1759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,617 psi | 75% | 2910 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,049 psi | 69% | 2963 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,305 psi | 59% | 2779 fps | 97.8% |
| ReloadSwiss RS 70 | 56 gr | 80% | 37,101 psi | 57% | 2782 fps | 97.1% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 39,015 psi | 60% | 2881 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 51,793 psi | 80% | 2927 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,469 psi | 70% | 2858 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 50,140 psi | 77% | 2956 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 90% | 44,193 psi | 68% | 2894 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 42,366 psi | 65% | 2779 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,263 psi | 63% | 2756 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 49,850 psi | 77% | 2910 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,566 psi | 61% | 2736 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,673 psi | 72% | 2917 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 54,085 psi | 83% | 3002 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,911 psi | 84% | 2904 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,543 psi | 72% | 2762 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,495 psi | 62% | 2700 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,787 psi | 67% | 2890 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 54,694 psi | 84% | 2897 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,643 psi | 70% | 2854 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 51,634 psi | 79% | 2946 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 34,722 psi | 53% | 2710 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 39,276 psi | 60% | 2756 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 52,025 psi | 80% | 2884 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,228 psi | 80% | 2900 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,642 psi | 67% | 2782 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,682 psi | 61% | 2756 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 92% | 41,466 psi | 64% | 2795 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 50,488 psi | 78% | 2890 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,073 psi | 60% | 2756 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 30,298 psi | 47% | 2589 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 96% | 51,909 psi | 80% | 3104 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,812 psi | 60% | 2723 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 40,509 psi | 62% | 2812 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,904 psi | 40% | 2530 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 54,172 psi | 83% | 3009 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,280 psi | 68% | 2858 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 98 powders for 6.8 Western loaded with the .277 | 130gr | Remington BronzePoint. Alliant Reloder-26 delivers the highest muzzle velocity at 3,232 fps; across all powders the maximum-charge window runs from 1,916 fps to 3,232 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 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 130.0 gr projectile in 0.277" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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. ReloadSwiss RS 70, Alliant Reloder-26, Accurate High Country rank at the top here: for 6.8 Western with the .277 | 130gr | Remington BronzePoint 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.