Load Specifications
Bullet:.277 | 130gr | Hornady CX
Bullet Manufacturer:Hornady
Bullet Weight:130 gr
Bullet Diameter:0.277"
Bullet Length:<<locked>>
Caliber:6.8 Western load data
Case Length (l3):2.02"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:75.5 Grains of Water
Primer Size:Large Rifle
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:10.5
Load data in caliber 6.8 Western with .277 | 130gr | Hornady CX bullet and 104 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-16 and Alliant Reloder-26.
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>> | 84% | 57,609 psi | 89% | 2969 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,912 psi | 86% | 2995 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,679 psi | 83% | 3035 fps | 99.5% |
| Accurate 4064 | <<locked>> | 86% | 58,146 psi | 89% | 3028 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,753 psi | 86% | 3091 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 55,999 psi | 86% | 3179 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 82% | 57,334 psi | 88% | 3064 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 58,639 psi | 90% | 3071 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 56,985 psi | 88% | 3136 fps | 98.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,781 psi | 84% | 3130 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 58,392 psi | 90% | 3202 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,883 psi | 86% | 3041 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,043 psi | 86% | 3061 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,710 psi | 87% | 3153 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 58,204 psi | 90% | 3179 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,376 psi | 87% | 3123 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,635 psi | 83% | 3123 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,314 psi | 77% | 3048 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,801 psi | 67% | 2963 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 58,639 psi | 90% | 3261 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 57,464 psi | 88% | 3081 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,052 psi | 75% | 3038 fps | 96.8% |
| Bofors RP3 | <<locked>> | 86% | 56,637 psi | 87% | 3054 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,635 psi | 83% | 3123 fps | 97.9% |
| Bofors RP7 | <<locked>> | 90% | 56,072 psi | 86% | 3038 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 86% | 57,130 psi | 88% | 3074 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 58,088 psi | 89% | 3146 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 90% | 57,812 psi | 89% | 3104 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 98% | 54,911 psi | 84% | 3071 fps | 96% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 57,595 psi | 89% | 3114 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 82% | 57,972 psi | 89% | 3071 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 56,840 psi | 87% | 3068 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 58,595 psi | 90% | 3114 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 54,723 psi | 84% | 3123 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,187 psi | 56% | 1909 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,463 psi | 85% | 3018 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 58,726 psi | 90% | 3045 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 58,189 psi | 90% | 3054 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 57,174 psi | 88% | 3035 fps | 99.2% |
| IMR 4350 | <<locked>> | 94% | 57,145 psi | 88% | 3071 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 90% | 57,928 psi | 89% | 3071 fps | 99.3% |
| IMR 4831 | <<locked>> | 94% | 56,260 psi | 87% | 3081 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 57,537 psi | 89% | 3091 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,347 psi | 87% | 3058 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,924 psi | 80% | 3091 fps | 96.1% |
| Lovex D073.6 | <<locked>> | 82% | 57,769 psi | 89% | 3031 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 56,159 psi | 86% | 2986 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 58,189 psi | 90% | 3041 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 57,856 psi | 89% | 3064 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 55,535 psi | 85% | 3048 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,121 psi | 68% | 2864 fps | 98% |
| Norma 201 | <<locked>> | 82% | 55,680 psi | 86% | 2999 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,579 psi | 87% | 2995 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,332 psi | 85% | 3048 fps | 100% |
| Norma 204 | <<locked>> | 94% | 58,494 psi | 90% | 3133 fps | 98.3% |
| Norma MRPᴾ | <<locked>> | 100% | 57,203 psi | 88% | 3212 fps | 99.4% |
| Norma URP | <<locked>> | 94% | 58,175 psi | 89% | 3130 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,231 psi | 87% | 3071 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,344 psi | 81% | 3107 fps | 96.5% |
| Ramshot Hunter | <<locked>> | 94% | 57,217 psi | 88% | 3133 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,514 psi | 72% | 2969 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,767 psi | 57% | 1952 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 57,029 psi | 88% | 3054 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 57,159 psi | 88% | 3133 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 57,798 psi | 89% | 3173 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,680 psi | 86% | 3114 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 58,320 psi | 90% | 3205 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,859 psi | 66% | 2982 fps | 96.9% |
| Rottweil R 902 | <<locked>> | 84% | 56,391 psi | 87% | 2999 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 56,811 psi | 87% | 3051 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,056 psi | 85% | 3045 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 98% | 55,492 psi | 85% | 3107 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 90% | 56,072 psi | 86% | 3038 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 92% | 57,856 psi | 89% | 3064 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 57,769 psi | 89% | 3031 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 58,189 psi | 90% | 3041 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,535 psi | 85% | 3048 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 58,552 psi | 90% | 3114 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,738 psi | 86% | 3031 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,652 psi | 87% | 2930 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 57,870 psi | 89% | 2933 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 57,725 psi | 89% | 3015 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 55,013 psi | 85% | 3100 fps | 98% |
| Somchem S335 | <<locked>> | 82% | 56,217 psi | 86% | 2923 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 58,450 psi | 90% | 3054 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 56,521 psi | 87% | 3045 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 56,884 psi | 88% | 3038 fps | 96.3% |
| Somchem S365 | <<locked>> | 96% | 57,566 psi | 89% | 3130 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,883 psi | 86% | 3077 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 82% | 57,276 psi | 88% | 2910 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 56,826 psi | 87% | 2959 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 57,334 psi | 88% | 2976 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 58,030 psi | 89% | 3018 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,768 psi | 87% | 3071 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,909 psi | 80% | 2995 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 84% | 55,579 psi | 86% | 2972 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,825 psi | 86% | 3074 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,391 psi | 87% | 3133 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 57,464 psi | 88% | 3202 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,579 psi | 87% | 3035 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 58,392 psi | 90% | 3150 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,600 psi | 70% | 3110 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,101 psi | 86% | 3041 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,391 psi | 87% | 3074 fps | 98.1% |
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 2495 | <<locked>> | 80% | 50,531 psi | 78% | 2867 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,892 psi | 75% | 2877 fps | 97.4% |
| Accurate 3100 | <<locked>> | 88% | 35,099 psi | 54% | 2667 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 47,906 psi | 74% | 2874 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,390 psi | 56% | 2717 fps | 97.5% |
| Accurate MAGPRO | <<locked>> | 98% | 52,243 psi | 80% | 3114 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 53,737 psi | 83% | 3009 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,672 psi | 70% | 2851 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 90% | 43,714 psi | 67% | 2887 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 98% | 50,923 psi | 78% | 3054 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,676 psi | 78% | 3074 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,108 psi | 71% | 2874 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,211 psi | 76% | 2946 fps | 99.9% |
| Alliant Reloder-16 | 50.5 gr | 80% | 35,839 psi | 55% | 2736 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,553 psi | 62% | 2867 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,279 psi | 67% | 2877 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,439 psi | 67% | 2923 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,615 psi | 42% | 2516 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,779 psi | 52% | 2713 fps | 95.3% |
| Alliant Reloder-26 | 58.5 gr | 84% | 32,024 psi | 49% | 2703 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,650 psi | 83% | 3022 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 42,830 psi | 66% | 2910 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 46,267 psi | 71% | 2884 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,439 psi | 67% | 2923 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 40,596 psi | 62% | 2743 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 46,601 psi | 72% | 2894 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 38,711 psi | 60% | 2772 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 82% | 44,556 psi | 69% | 2861 fps | 95.8% |
| Hodgdon H4831 | <<locked>> | 96% | 51,039 psi | 79% | 3002 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,505 psi | 82% | 3048 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 54,346 psi | 84% | 3018 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,170 psi | 51% | 2621 fps | 98.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,111 psi | 79% | 2995 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 40,596 psi | 62% | 2848 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,093 psi | 42% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,953 psi | 80% | 2963 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 55,172 psi | 85% | 2995 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,022 psi | 74% | 2887 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,299 psi | 77% | 2917 fps | 98.3% |
| IMR 4350 | <<locked>> | 84% | 41,539 psi | 64% | 2782 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,279 psi | 65% | 2779 fps | 96.4% |
| IMR 4831 | <<locked>> | 80% | 35,143 psi | 54% | 2671 fps | 97.2% |
| IMR 4895 | <<locked>> | 80% | 50,488 psi | 78% | 2979 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,823 psi | 81% | 2999 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 98% | 48,501 psi | 75% | 3025 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 80% | 54,041 psi | 83% | 2979 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 52,707 psi | 81% | 2930 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,080 psi | 74% | 2884 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,610 psi | 61% | 2723 fps | 97.1% |
| Lovex S070 | <<locked>> | 80% | 37,695 psi | 58% | 2697 fps | 95.3% |
| Lovex S071 | <<locked>> | 94% | 36,274 psi | 56% | 2694 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 52,417 psi | 81% | 2946 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,243 psi | 82% | 2949 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,544 psi | 75% | 2933 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,193 psi | 68% | 2877 fps | 95.1% |
| Norma MRP | <<locked>> | 90% | 39,827 psi | 61% | 2874 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 36,332 psi | 56% | 2713 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 80% | 49,052 psi | 75% | 2956 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,718 psi | 75% | 3038 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 35,346 psi | 54% | 2700 fps | 95.2% |
| Ramshot Magnum | <<locked>> | 98% | 43,279 psi | 67% | 2904 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,456 psi | 42% | 1749 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,833 psi | 72% | 2877 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,403 psi | 82% | 3074 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,134 psi | 66% | 2927 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,332 psi | 56% | 2736 fps | 97.2% |
| ReloadSwiss RS 70 | 55.2 gr | 80% | 35,418 psi | 54% | 2743 fps | 96.4% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,842 psi | 61% | 2904 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 49,719 psi | 76% | 2897 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,337 psi | 67% | 2822 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 48,225 psi | 74% | 2923 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 92% | 45,136 psi | 69% | 2917 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 40,596 psi | 62% | 2743 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,610 psi | 61% | 2723 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 54,041 psi | 83% | 2979 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 48,080 psi | 74% | 2884 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,695 psi | 58% | 2697 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,817 psi | 69% | 2884 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,315 psi | 80% | 2976 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,287 psi | 82% | 2881 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,005 psi | 69% | 2740 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,711 psi | 60% | 2664 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 44,730 psi | 69% | 2913 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 53,026 psi | 82% | 2877 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 54,520 psi | 84% | 2995 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,888 psi | 68% | 2828 fps | 99.9% |
| Somchem S361 | <<locked>> | 94% | 53,098 psi | 82% | 2976 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 32,779 psi | 50% | 2667 fps | 99.2% |
| Somchem S385 | <<locked>> | 88% | 40,030 psi | 62% | 2779 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 53,911 psi | 83% | 2864 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,154 psi | 77% | 2861 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,343 psi | 77% | 2874 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,771 psi | 64% | 2753 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,826 psi | 58% | 2717 fps | 97.8% |
| Vihtavuori N165 | <<locked>> | 94% | 42,308 psi | 65% | 2815 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 48,660 psi | 75% | 2864 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,231 psi | 57% | 2717 fps | 97.4% |
| Vihtavuori N555 | <<locked>> | 82% | 30,560 psi | 47% | 2602 fps | 96% |
| Vihtavuori N560 | <<locked>> | 96% | 49,908 psi | 77% | 3068 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,043 psi | 57% | 2687 fps | 99.3% |
| Winchester 760 | <<locked>> | 80% | 38,711 psi | 60% | 2772 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,107 psi | 40% | 2543 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,315 psi | 80% | 2982 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 45,658 psi | 70% | 2887 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 104 powders for 6.8 Western loaded with the .277 | 130gr | Hornady CX. Alliant Reloder-26 delivers the highest muzzle velocity at 3,261 fps; across all powders the maximum-charge window runs from 1,909 fps to 3,261 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 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 1:10.5 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-16, Alliant Reloder-26 rank at the top here: for 6.8 Western with the .277 | 130gr | Hornady CX 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.