Load Specifications
Bullet Manufacturer:Prvi Partizan
Bullet Weight:150 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:1:12.0
Load data in caliber 6.8 Western with .277 | 150gr | Prvi Partizan SP bullet and 83 powders. The key underlying parameters are shown in the table above.
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 3100 | <<locked>> | 96% | 55,724 psi | 86% | 2877 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 57,261 psi | 88% | 2913 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 57,217 psi | 88% | 3028 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 96% | 58,189 psi | 90% | 3028 fps | 98% |
| ADI AR 2208 | <<locked>> | 84% | 58,624 psi | 90% | 2874 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,943 psi | 89% | 2966 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 55,738 psi | 86% | 2972 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,528 psi | 72% | 2799 fps | 96.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,423 psi | 64% | 2759 fps | 98.5% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 58,262 psi | 90% | 2966 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,318 psi | 87% | 2844 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 58,044 psi | 89% | 2966 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,521 psi | 85% | 2930 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 57,508 psi | 88% | 2956 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,521 psi | 85% | 2966 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 56,463 psi | 87% | 2936 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,228 psi | 80% | 2943 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 57,029 psi | 88% | 3031 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 57,711 psi | 89% | 2927 fps | 96% |
| Bofors RP15ᴾ | <<locked>> | 100% | 58,073 psi | 89% | 3005 fps | 99.5% |
| Bofors RP3 | <<locked>> | 82% | 57,493 psi | 88% | 2864 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,051 psi | 74% | 2871 fps | 97.7% |
| Bofors RP5 | <<locked>> | 96% | 55,521 psi | 85% | 2966 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 56,434 psi | 87% | 2861 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,387 psi | 79% | 2894 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 82% | 57,566 psi | 89% | 2884 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 55,390 psi | 85% | 2913 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 58,088 psi | 89% | 2923 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 94% | 55,593 psi | 86% | 2907 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 96% | 58,465 psi | 90% | 2953 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 58,392 psi | 90% | 2887 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,111 psi | 79% | 3002 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 86% | 55,825 psi | 86% | 2953 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 57% | 1795 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 58,015 psi | 89% | 2854 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,725 psi | 89% | 2897 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,740 psi | 89% | 2884 fps | 99.9% |
| IMR 4831 | <<locked>> | 90% | 57,667 psi | 89% | 2904 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,811 psi | 87% | 2894 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 98% | 57,232 psi | 88% | 3009 fps | 98.8% |
| Lovex S062 | <<locked>> | 82% | 58,378 psi | 90% | 2844 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 58,421 psi | 90% | 2881 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 56,434 psi | 87% | 2877 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,953 psi | 81% | 2835 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 55,042 psi | 85% | 2897 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 36,869 psi | 57% | 2677 fps | 96.4% |
| Norma MRP | <<locked>> | 94% | 55,347 psi | 85% | 2992 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 55,666 psi | 86% | 2894 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 57,899 psi | 89% | 3025 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 90% | 58,291 psi | 90% | 2956 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 56,289 psi | 87% | 2963 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,797 psi | 58% | 1841 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,246 psi | 88% | 2871 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,955 psi | 85% | 2917 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,305 psi | 88% | 2940 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,506 psi | 85% | 2966 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,445 psi | 79% | 2995 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 84% | 57,638 psi | 89% | 2861 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,709 psi | 86% | 2881 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 94% | 56,884 psi | 88% | 2943 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 86% | 56,434 psi | 87% | 2861 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 58,421 psi | 90% | 2881 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 58,378 psi | 90% | 2844 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 56,434 psi | 87% | 2877 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,332 psi | 85% | 2867 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,595 psi | 89% | 2733 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,899 psi | 89% | 2838 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,492 psi | 87% | 2940 fps | 99.4% |
| Somchem S355 | <<locked>> | 84% | 57,290 psi | 88% | 2854 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 57,363 psi | 88% | 2874 fps | 98% |
| Somchem S365 | <<locked>> | 90% | 55,767 psi | 86% | 2897 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 57,348 psi | 88% | 2913 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 86% | 58,552 psi | 90% | 2825 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,508 psi | 88% | 2887 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 56,942 psi | 88% | 2897 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 88% | 56,753 psi | 87% | 2894 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,347 psi | 85% | 2917 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,303 psi | 85% | 2982 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,723 psi | 84% | 2956 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,072 psi | 88% | 2848 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,666 psi | 86% | 2917 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 57,885 psi | 89% | 3077 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 57,479 psi | 88% | 2913 fps | 99.3% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 32,503 psi | 50% | 2434 fps | 96.2% |
| Accurate 4350 | <<locked>> | 80% | 43,743 psi | 67% | 2694 fps | 99.8% |
| Accurate High Country | <<locked>> | 86% | 43,294 psi | 67% | 2776 fps | 95.9% |
| Accurate MAGPRO | <<locked>> | 90% | 47,065 psi | 72% | 2838 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 51,735 psi | 80% | 2769 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 39,059 psi | 60% | 2618 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 88% | 42,627 psi | 66% | 2726 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 98% | 43,540 psi | 67% | 2736 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 94% | 34,113 psi | 52% | 2572 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 39,378 psi | 61% | 2621 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,895 psi | 81% | 2795 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,887 psi | 64% | 2697 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,095 psi | 74% | 2815 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 39,001 psi | 60% | 2615 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 84% | 37,057 psi | 57% | 2608 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,096 psi | 48% | 2461 fps | 99% |
| Alliant Reloder-25 | <<locked>> | 82% | 29,095 psi | 45% | 2421 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,750 psi | 52% | 2592 fps | 98.1% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 54,230 psi | 83% | 2867 fps | 95.2% |
| Bofors RP15 | <<locked>> | 88% | 39,247 psi | 60% | 2661 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 53,650 psi | 83% | 2812 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 39,305 psi | 60% | 2694 fps | 95.1% |
| Bofors RP5 | <<locked>> | 84% | 37,057 psi | 57% | 2608 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 46,702 psi | 72% | 2697 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 92% | 39,189 psi | 60% | 2644 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 53,780 psi | 83% | 2831 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 45,252 psi | 70% | 2736 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 80% | 47,892 psi | 74% | 2753 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 88% | 45,411 psi | 70% | 2730 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 88% | 44,730 psi | 69% | 2717 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,610 psi | 61% | 2589 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,796 psi | 57% | 2680 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 44,672 psi | 69% | 2759 fps | 98.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,630 psi | 43% | 1604 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 54,447 psi | 84% | 2802 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,235 psi | 65% | 2628 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,950 psi | 74% | 2723 fps | 99.1% |
| IMR 4831 | <<locked>> | 80% | 41,582 psi | 64% | 2638 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 44,280 psi | 68% | 2671 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 90% | 43,642 psi | 67% | 2759 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 54,839 psi | 84% | 2795 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,585 psi | 70% | 2674 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 43,932 psi | 68% | 2661 fps | 98.6% |
| Lovex S071 | <<locked>> | 82% | 29,936 psi | 46% | 2365 fps | 95.1% |
| Norma 204 | <<locked>> | 80% | 42,047 psi | 65% | 2661 fps | 96.4% |
| Norma 217 | <<locked>> | 98% | 34,490 psi | 53% | 2615 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 33,808 psi | 52% | 2559 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 42,960 psi | 66% | 2680 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 40,422 psi | 62% | 2703 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 41,814 psi | 64% | 2674 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 36,013 psi | 55% | 2579 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,340 psi | 44% | 1647 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,592 psi | 82% | 2815 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,039 psi | 79% | 2861 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,540 psi | 67% | 2713 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,800 psi | 64% | 2723 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,562 psi | 52% | 2589 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 50,662 psi | 78% | 2759 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 43,134 psi | 66% | 2654 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 82% | 38,290 psi | 59% | 2598 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 46,702 psi | 72% | 2697 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,585 psi | 70% | 2674 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 54,839 psi | 84% | 2795 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,932 psi | 68% | 2661 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,982 psi | 80% | 2815 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,952 psi | 78% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,686 psi | 69% | 2621 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,942 psi | 58% | 2595 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 50,502 psi | 78% | 2753 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 44,034 psi | 68% | 2644 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 39,827 psi | 61% | 2638 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,303 psi | 56% | 2523 fps | 95.9% |
| Vihtavuori N150 | <<locked>> | 80% | 48,356 psi | 74% | 2680 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,454 psi | 68% | 2677 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 35,926 psi | 55% | 2510 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 43,743 psi | 67% | 2677 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 34,853 psi | 54% | 2539 fps | 98.9% |
| Vihtavuori N560 | <<locked>> | 88% | 44,759 psi | 69% | 2792 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 94% | 44,744 psi | 69% | 2776 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,424 psi | 67% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,469 psi | 70% | 2743 fps | 98.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,659 psi | 43% | 2464 fps | 98.9% |
| Winchester Supreme 780 | <<locked>> | 84% | 38,087 psi | 59% | 2566 fps | 95.4% |
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 | Prvi Partizan SP. Winchester StaBALL HD delivers the highest muzzle velocity at 3,077 fps; across all powders the maximum-charge window runs from 1,795 fps to 3,077 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 1:12.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.