Load Specifications
Load data in caliber .27 Nosler with .277 | 150gr | Prvi Partizan SP bullet and 58 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N570, 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>> | 88% | 56,579 psi | 87% | 2949 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 56,449 psi | 87% | 3061 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 86% | 57,725 psi | 89% | 3035 fps | 100% |
| ADI AR 2213 | <<locked>> | 88% | 56,188 psi | 86% | 3051 fps | 99.6% |
| ADI AR 2217 | <<locked>> | 98% | 58,726 psi | 90% | 3087 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 55,114 psi | 85% | 3133 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 57,276 psi | 88% | 3104 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 57,899 psi | 89% | 3018 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 57,276 psi | 88% | 3025 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 56,637 psi | 87% | 3045 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 58,363 psi | 90% | 3005 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 58,740 psi | 90% | 3081 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 55,172 psi | 85% | 3035 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 56,768 psi | 87% | 3114 fps | 97.7% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 52,315 psi | 80% | 3028 fps | 96.2% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 56,710 psi | 87% | 3009 fps | 97.9% |
| Bofors RP15 | <<locked>> | 90% | 55,840 psi | 86% | 3031 fps | 99.9% |
| Bofors RP30 | <<locked>> | 96% | 58,479 psi | 90% | 3097 fps | 99.9% |
| Bofors RP5 | <<locked>> | 88% | 56,637 psi | 87% | 3045 fps | 100% |
| Hodgdon H1000 | <<locked>> | 94% | 56,289 psi | 87% | 3048 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 86% | 55,376 psi | 85% | 2982 fps | 99.1% |
| Hodgdon H4831 SC | <<locked>> | 88% | 58,044 psi | 89% | 3025 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 58,030 psi | 89% | 2943 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 57,943 psi | 89% | 3173 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,768 psi | 58% | 1919 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 56,405 psi | 87% | 2953 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 57,087 psi | 88% | 2959 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 55,695 psi | 86% | 2959 fps | 99.3% |
| IMR 7828 SSC | <<locked>> | 90% | 58,436 psi | 90% | 3094 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 52,721 psi | 81% | 3018 fps | 99.4% |
| Lovex S070 | <<locked>> | 82% | 58,595 psi | 90% | 2986 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 58,131 psi | 89% | 2972 fps | 100% |
| Norma 204 | <<locked>> | 82% | 57,638 psi | 89% | 3015 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 53,664 psi | 83% | 3045 fps | 100% |
| Norma MRP | <<locked>> | 86% | 56,840 psi | 87% | 3064 fps | 100% |
| Norma URP | <<locked>> | 82% | 58,653 psi | 90% | 2999 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 55,825 psi | 86% | 3054 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 82% | 57,653 psi | 89% | 3009 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 58,160 psi | 89% | 3041 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,653 psi | 59% | 1962 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 54,491 psi | 84% | 3094 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 58,276 psi | 90% | 3127 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 86% | 58,320 psi | 90% | 3005 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 86% | 57,188 psi | 88% | 3018 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 58,595 psi | 90% | 2986 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 56,782 psi | 87% | 3012 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 55,927 psi | 86% | 2936 fps | 99.2% |
| Somchem S365 | <<locked>> | 82% | 56,536 psi | 87% | 2953 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 57,435 psi | 88% | 2986 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 57,392 psi | 88% | 2972 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 56,463 psi | 87% | 2989 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 86% | 56,666 psi | 87% | 2982 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 56,275 psi | 87% | 3061 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 92% | 57,159 psi | 88% | 3054 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 96% | 58,682 psi | 90% | 3127 fps | 99.1% |
| Vihtavuori N570 | <<locked>> | 96% | 55,753 psi | 86% | 3117 fps | 97.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 58,639 psi | 90% | 3097 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 57,348 psi | 88% | 2982 fps | 100% |
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% | 43,352 psi | 67% | 2723 fps | 99.8% |
| Accurate MAGPRO | <<locked>> | 80% | 42,482 psi | 65% | 2789 fps | 95.2% |
| ADI AR 2209 | <<locked>> | 80% | 47,311 psi | 73% | 2854 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 80% | 42,511 psi | 65% | 2789 fps | 97.2% |
| ADI AR 2217 | <<locked>> | 84% | 36,376 psi | 56% | 2644 fps | 95.4% |
| ADI AR 2218 | <<locked>> | 96% | 47,529 psi | 73% | 2979 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 80% | 29,051 psi | 45% | 2477 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 54,317 psi | 84% | 2966 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 47,253 psi | 73% | 2848 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 43,308 psi | 67% | 2799 fps | 98.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 42,061 psi | 65% | 2740 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 36,390 psi | 56% | 2671 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 47,587 psi | 73% | 2910 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 48,733 psi | 75% | 2969 fps | 95.8% |
| Alliant Reloder-50 | <<locked>> | 98% | 48,341 psi | 74% | 2953 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 46,804 psi | 72% | 2825 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 40,234 psi | 62% | 2730 fps | 97.6% |
| Bofors RP30 | <<locked>> | 82% | 36,274 psi | 56% | 2657 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 43,308 psi | 67% | 2799 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 80% | 34,432 psi | 53% | 2598 fps | 95.3% |
| Hodgdon H4831 | <<locked>> | 80% | 45,049 psi | 69% | 2792 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 44,324 psi | 68% | 2776 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 51,126 psi | 79% | 2841 fps | 100% |
| Hodgdon Retumbo | 67.7 gr | 80% | 35,476 psi | 55% | 2703 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,326 psi | 44% | 1716 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,910 psi | 81% | 2900 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 53,490 psi | 82% | 2904 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 46,108 psi | 71% | 2782 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 80% | 41,176 psi | 63% | 2769 fps | 96.9% |
| IMR 8133 Enduron | <<locked>> | 90% | 37,391 psi | 58% | 2703 fps | 95.8% |
| Lovex S070 | <<locked>> | 80% | 54,955 psi | 85% | 2930 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 37,333 psi | 57% | 2595 fps | 98.9% |
| Norma 204 | <<locked>> | 80% | 53,751 psi | 83% | 2949 fps | 99.7% |
| Norma 217 | <<locked>> | 84% | 30,632 psi | 47% | 2539 fps | 95.1% |
| Norma MRP | <<locked>> | 80% | 45,963 psi | 71% | 2871 fps | 99.7% |
| Norma URP | <<locked>> | 80% | 54,926 psi | 85% | 2943 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 41,321 psi | 64% | 2782 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 80% | 53,853 psi | 83% | 2949 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 37,231 psi | 57% | 2657 fps | 97.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,008 psi | 45% | 1755 fps | 100% |
| ReloadSwiss RS 76 | 72.5 gr | 80% | 34,795 psi | 54% | 2680 fps | 97.9% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 39,784 psi | 61% | 2769 fps | 95.1% |
| Rottweil R 904 | <<locked>> | 80% | 48,051 psi | 74% | 2828 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 80% | 46,717 psi | 72% | 2835 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 80% | 54,955 psi | 85% | 2930 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 46,383 psi | 71% | 2831 fps | 99.1% |
| Somchem S361 | <<locked>> | 80% | 48,936 psi | 75% | 2818 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 52,837 psi | 81% | 2897 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 47,253 psi | 73% | 2812 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 80% | 41,336 psi | 64% | 2687 fps | 98.5% |
| Vihtavuori N170 | <<locked>> | 92% | 52,678 psi | 81% | 2923 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 80% | 46,572 psi | 72% | 2818 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 45,643 psi | 70% | 2864 fps | 97.5% |
| Vihtavuori N565 | <<locked>> | 80% | 37,971 psi | 58% | 2674 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 88% | 44,077 psi | 68% | 2854 fps | 96% |
| Vihtavuori N570 | 80.8 gr | 92% | 48,269 psi | 74% | 2979 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 40,147 psi | 62% | 2792 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 43,540 psi | 67% | 2740 fps | 98.5% |
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 64 powders for .27 Nosler loaded with the .277 | 150gr | Prvi Partizan SP. Hodgdon Retumbo delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,919 fps to 3,173 fps. Accurate 8700 gives the best case fill at 100 %, and 64 of the 64 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 58–90 %, 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. Accurate 8700, 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. Vihtavuori N570, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for .27 Nosler with the .277 | 150gr | Prvi Partizan SP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 8700, IMR 7977 Enduron, Lovex D100 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.