Load Specifications
Load data in caliber .270 WSM with .277 | 154gr | Reichenberg Mag Dr ckjagd bullet and 70 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Hodgdon Retumbo and ReloadSwiss RS 76.
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 3100 | <<locked>> | 92% | 57,334 psi | 90% | 2844 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 54,911 psi | 86% | 2818 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 57,725 psi | 90% | 2986 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 90% | 54,694 psi | 86% | 2923 fps | 97.8% |
| ADI AR 2209 | <<locked>> | 90% | 57,522 psi | 90% | 2913 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 92% | 55,332 psi | 87% | 2917 fps | 98.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 53,476 psi | 84% | 2881 fps | 98.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,602 psi | 76% | 2861 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 57,725 psi | 90% | 2907 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 57,188 psi | 90% | 2904 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 92% | 56,014 psi | 88% | 2923 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 94% | 57,334 psi | 90% | 2894 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 56,318 psi | 88% | 2953 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,012 psi | 85% | 2930 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,478 psi | 89% | 2867 fps | 96.3% |
| Bofors RP15 | <<locked>> | 94% | 55,245 psi | 87% | 2910 fps | 99.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 56,434 psi | 88% | 2963 fps | 99.3% |
| Bofors RP5 | <<locked>> | 92% | 56,014 psi | 88% | 2923 fps | 99.6% |
| Bofors RP7 | <<locked>> | 82% | 55,985 psi | 88% | 2802 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 98% | 54,839 psi | 86% | 2904 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 82% | 55,172 psi | 86% | 2858 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 57,290 psi | 90% | 2861 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 90% | 55,172 psi | 86% | 2854 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 54,230 psi | 85% | 2838 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 55,042 psi | 86% | 2785 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,187 psi | 86% | 3025 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 55,129 psi | 86% | 2890 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,608 psi | 59% | 1781 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 57,203 psi | 90% | 2841 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 56,782 psi | 89% | 2818 fps | 99.9% |
| IMR 4831 | <<locked>> | 84% | 54,766 psi | 86% | 2805 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 56,231 psi | 88% | 2838 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 94% | 56,971 psi | 89% | 2956 fps | 99% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,672 psi | 70% | 2779 fps | 97.1% |
| Lovex S065 | <<locked>> | 82% | 54,955 psi | 86% | 2776 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,594 psi | 89% | 2825 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 55,347 psi | 87% | 2815 fps | 100% |
| Norma 204 | <<locked>> | 84% | 54,476 psi | 85% | 2841 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 44,889 psi | 70% | 2805 fps | 99.1% |
| Norma MRP | <<locked>> | 90% | 55,941 psi | 88% | 2946 fps | 100% |
| Norma URP | <<locked>> | 84% | 55,840 psi | 88% | 2841 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 54,099 psi | 85% | 2917 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 84% | 54,404 psi | 85% | 2848 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 56,478 psi | 89% | 2917 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,725 psi | 61% | 1827 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 57,696 psi | 90% | 2887 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 55,303 psi | 87% | 2907 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 55,883 psi | 88% | 3022 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 55,100 psi | 86% | 2982 fps | 98.1% |
| Rottweil R 904 | <<locked>> | 88% | 55,376 psi | 87% | 2828 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 90% | 57,232 psi | 90% | 2897 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 82% | 55,985 psi | 88% | 2802 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,955 psi | 86% | 2776 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,594 psi | 89% | 2825 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 57,450 psi | 90% | 2782 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 56,826 psi | 89% | 2894 fps | 99.6% |
| Somchem S361 | <<locked>> | 88% | 56,869 psi | 89% | 2822 fps | 98.3% |
| Somchem S365 | <<locked>> | 86% | 56,753 psi | 89% | 2851 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,665 psi | 86% | 2822 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 84% | 57,261 psi | 90% | 2828 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,971 psi | 89% | 2848 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 84% | 56,724 psi | 89% | 2838 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 56,869 psi | 89% | 2881 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 55,448 psi | 87% | 2936 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 96% | 56,275 psi | 88% | 2930 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,927 psi | 88% | 2979 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 56,420 psi | 88% | 2785 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 55,463 psi | 87% | 2861 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 94% | 55,172 psi | 86% | 2986 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 57,276 psi | 90% | 2861 fps | 99.5% |
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 3100 | <<locked>> | 80% | 40,219 psi | 63% | 2549 fps | 98.9% |
| Accurate 4350 | <<locked>> | 80% | 51,721 psi | 81% | 2769 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 42,134 psi | 66% | 2697 fps | 96.1% |
| Accurate MAGPRO | <<locked>> | 84% | 45,223 psi | 71% | 2749 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 42,409 psi | 66% | 2641 fps | 97.2% |
| ADI AR 2213 | <<locked>> | 82% | 40,756 psi | 64% | 2635 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 90% | 39,740 psi | 62% | 2608 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 86% | 32,576 psi | 51% | 2480 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,080 psi | 75% | 2756 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,598 psi | 67% | 2641 fps | 97.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 38,957 psi | 61% | 2598 fps | 96.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 37,855 psi | 59% | 2566 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,272 psi | 52% | 2490 fps | 97.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 41,452 psi | 65% | 2713 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 53,330 psi | 84% | 2815 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 36,477 psi | 57% | 2539 fps | 95.4% |
| Bofors RP30 | <<locked>> | 88% | 39,291 psi | 62% | 2641 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 38,957 psi | 61% | 2598 fps | 96.4% |
| Bofors RP7 | <<locked>> | 80% | 52,794 psi | 83% | 2749 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 86% | 38,014 psi | 60% | 2569 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 52,069 psi | 82% | 2805 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 54,012 psi | 85% | 2808 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 43,250 psi | 68% | 2638 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 82% | 42,496 psi | 67% | 2621 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 46,180 psi | 72% | 2648 fps | 100% |
| Hodgdon Retumbo | 54.4 gr | 82% | 34,447 psi | 54% | 2562 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 51,503 psi | 81% | 2831 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,456 psi | 45% | 1594 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,993 psi | 75% | 2687 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 53,621 psi | 84% | 2769 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 48,762 psi | 76% | 2710 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 42,134 psi | 66% | 2579 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 82% | 39,610 psi | 62% | 2621 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 96% | 39,769 psi | 62% | 2671 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 52,170 psi | 82% | 2733 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 50,488 psi | 79% | 2726 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 35,389 psi | 55% | 2441 fps | 97.8% |
| Norma 204 | <<locked>> | 80% | 48,196 psi | 76% | 2730 fps | 98.3% |
| Norma 217 | <<locked>> | 90% | 33,678 psi | 53% | 2539 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 40,669 psi | 64% | 2667 fps | 98.2% |
| Norma URP | <<locked>> | 80% | 49,632 psi | 78% | 2743 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 39,305 psi | 62% | 2625 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 48,269 psi | 76% | 2743 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 80% | 33,605 psi | 53% | 2467 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,124 psi | 46% | 1634 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,923 psi | 80% | 2785 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,356 psi | 76% | 2799 fps | 100% |
| ReloadSwiss RS 76 | 56.8 gr | 80% | 31,778 psi | 50% | 2487 fps | 95% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 45,150 psi | 71% | 2799 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 43,830 psi | 69% | 2618 fps | 96.4% |
| Rottweil R 905 | <<locked>> | 80% | 42,337 psi | 66% | 2631 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 80% | 52,794 psi | 83% | 2749 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 52,170 psi | 82% | 2733 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 50,488 psi | 79% | 2726 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,937 psi | 80% | 2677 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,974 psi | 66% | 2628 fps | 97.3% |
| Somchem S361 | <<locked>> | 80% | 44,541 psi | 70% | 2605 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 47,137 psi | 74% | 2710 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 43,236 psi | 68% | 2618 fps | 98.3% |
| Vihtavuori N160 | <<locked>> | 80% | 50,952 psi | 80% | 2733 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,739 psi | 59% | 2497 fps | 96.6% |
| Vihtavuori N550 | <<locked>> | 80% | 50,430 psi | 79% | 2740 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 42,641 psi | 67% | 2644 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 43,178 psi | 68% | 2707 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 86% | 41,539 psi | 65% | 2657 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 94% | 46,282 psi | 73% | 2805 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,603 psi | 78% | 2690 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 52,069 psi | 82% | 2805 fps | 99.8% |
| Winchester StaBALL HD | 54.5 gr | 80% | 34,316 psi | 54% | 2612 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,421 psi | 62% | 2543 fps | 96.4% |
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 76 powders for .270 WSM loaded with the .277 | 154gr | Reichenberg Mag Dr ckjagd. Hodgdon Retumbo delivers the highest muzzle velocity at 3,025 fps; across all powders the maximum-charge window runs from 1,781 fps to 3,025 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 154.0 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 2218, ADI AR 2225 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. Winchester StaBALL HD, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for .270 WSM with the .277 | 154gr | Reichenberg Mag Dr ckjagd they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2218, Alliant Reloder-33, Alliant Reloder-50 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.