Load Specifications
Load data in caliber .27 Nosler with .277 | 140gr | Hornady SST bullet and 51 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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 84% | 55,970 psi | 86% | 2992 fps | 100% |
| Accurate High Country | <<locked>> | 82% | 56,028 psi | 86% | 3130 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 84% | 56,710 psi | 87% | 3130 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 84% | 57,754 psi | 89% | 3100 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 86% | 56,260 psi | 87% | 3114 fps | 99.2% |
| ADI AR 2217 | <<locked>> | 96% | 58,798 psi | 90% | 3150 fps | 99.7% |
| ADI AR 2218 | <<locked>> | 98% | 55,709 psi | 86% | 3199 fps | 96.8% |
| ADI AR 2225 | <<locked>> | 98% | 57,986 psi | 89% | 3182 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 58,175 psi | 89% | 3097 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 58,175 psi | 89% | 3097 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 84% | 57,653 psi | 89% | 3091 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 86% | 57,537 psi | 89% | 3120 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 86% | 56,173 psi | 86% | 3038 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 55,970 psi | 86% | 3110 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 56,855 psi | 87% | 3130 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 57,783 psi | 89% | 3199 fps | 97.3% |
| Alliant Reloder-50 | <<locked>> | 98% | 55,347 psi | 85% | 3143 fps | 96.2% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 56,130 psi | 86% | 3058 fps | 97.1% |
| Bofors RP15 | <<locked>> | 88% | 56,985 psi | 88% | 3110 fps | 99.8% |
| Bofors RP30 | <<locked>> | 92% | 56,420 psi | 87% | 3127 fps | 99.5% |
| Bofors RP5 | <<locked>> | 86% | 57,537 psi | 89% | 3120 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 92% | 56,623 psi | 87% | 3117 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 84% | 55,680 psi | 86% | 3041 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 86% | 58,073 psi | 89% | 3084 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 58,784 psi | 90% | 3012 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 58,160 psi | 89% | 3248 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,319 psi | 59% | 1978 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 55,869 psi | 86% | 3018 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 88% | 58,508 psi | 90% | 3159 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 58,073 psi | 89% | 3173 fps | 99.7% |
| Lovex S071 | <<locked>> | 90% | 57,769 psi | 89% | 3018 fps | 100% |
| Norma 217 | <<locked>> | 98% | 56,028 psi | 86% | 3150 fps | 100% |
| Norma MRP | <<locked>> | 84% | 57,798 psi | 89% | 3143 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 56,159 psi | 86% | 3123 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 88% | 55,434 psi | 85% | 3064 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,334 psi | 61% | 2021 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 55,434 psi | 85% | 3179 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 55,709 psi | 86% | 3146 fps | 98.6% |
| Rottweil R 904 | <<locked>> | 84% | 58,320 psi | 90% | 3064 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 84% | 58,030 psi | 89% | 3091 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 57,609 psi | 89% | 3087 fps | 99.9% |
| Somchem S361 | <<locked>> | 82% | 56,652 psi | 87% | 3002 fps | 98.8% |
| Somchem S385 | <<locked>> | 82% | 55,564 psi | 85% | 3012 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 88% | 58,175 psi | 89% | 3041 fps | 100% |
| Vihtavuori N555 | <<locked>> | 82% | 55,695 psi | 86% | 3025 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 56,826 psi | 87% | 3133 fps | 99% |
| Vihtavuori N565 | <<locked>> | 88% | 55,680 psi | 86% | 3087 fps | 99% |
| Vihtavuori N568 | <<locked>> | 92% | 56,144 psi | 86% | 3146 fps | 98.3% |
| Vihtavuori N570 | <<locked>> | 94% | 57,000 psi | 88% | 3205 fps | 96.8% |
| Winchester StaBALL HD | <<locked>> | 86% | 56,304 psi | 87% | 3140 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 57,943 psi | 89% | 3051 fps | 99.8% |
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% | 49,908 psi | 77% | 2890 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 52,750 psi | 81% | 3071 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 80% | 50,169 psi | 77% | 3009 fps | 97.4% |
| ADI AR 2209 | <<locked>> | 80% | 51,242 psi | 79% | 2986 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 80% | 46,847 psi | 72% | 2933 fps | 97.7% |
| ADI AR 2217 | <<locked>> | 82% | 38,914 psi | 60% | 2749 fps | 95.7% |
| ADI AR 2218 | <<locked>> | 96% | 52,170 psi | 80% | 3127 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 80% | 34,722 psi | 53% | 2690 fps | 97.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 51,866 psi | 80% | 2989 fps | 99.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 51,866 psi | 80% | 2989 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 80% | 51,372 psi | 79% | 2982 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 48,298 psi | 74% | 2953 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 47,369 psi | 73% | 2894 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 41,539 psi | 64% | 2841 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 53,461 psi | 82% | 3074 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 50,807 psi | 78% | 3068 fps | 95.6% |
| Alliant Reloder-50 | <<locked>> | 96% | 51,924 psi | 80% | 3077 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 50,154 psi | 77% | 2943 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 45,469 psi | 70% | 2894 fps | 98.4% |
| Bofors RP30 | <<locked>> | 80% | 39,885 psi | 61% | 2792 fps | 96.3% |
| Bofors RP5 | <<locked>> | 80% | 48,298 psi | 74% | 2953 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 80% | 39,407 psi | 61% | 2762 fps | 96.6% |
| Hodgdon H4831 | <<locked>> | 80% | 49,429 psi | 76% | 2930 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 48,631 psi | 75% | 2913 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 55,506 psi | 85% | 2963 fps | 100% |
| Hodgdon Retumbo | 66.6 gr | 80% | 40,872 psi | 63% | 2894 fps | 98.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,950 psi | 45% | 1768 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 49,893 psi | 77% | 2910 fps | 97.9% |
| IMR 7828 SSC | <<locked>> | 80% | 45,934 psi | 71% | 2923 fps | 97.5% |
| IMR 8133 Enduron | <<locked>> | 86% | 38,696 psi | 60% | 2785 fps | 95.7% |
| Lovex S071 | <<locked>> | 80% | 44,164 psi | 68% | 2779 fps | 99.7% |
| Norma 217 | <<locked>> | 80% | 33,330 psi | 51% | 2661 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 51,198 psi | 79% | 3028 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 46,325 psi | 71% | 2943 fps | 98% |
| Ramshot Magnum | <<locked>> | 80% | 42,902 psi | 66% | 2831 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,747 psi | 46% | 1811 fps | 100% |
| ReloadSwiss RS 76 | 71.2 gr | 80% | 40,422 psi | 62% | 2874 fps | 99% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 43,047 psi | 66% | 2897 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 52,141 psi | 80% | 2956 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 80% | 51,576 psi | 79% | 2979 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 51,300 psi | 79% | 2976 fps | 99.3% |
| Somchem S361 | <<locked>> | 80% | 53,287 psi | 82% | 2946 fps | 98.4% |
| Somchem S385 | <<locked>> | 80% | 52,402 psi | 81% | 2956 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 80% | 46,224 psi | 71% | 2831 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 52,736 psi | 81% | 2979 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 50,459 psi | 78% | 3015 fps | 98% |
| Vihtavuori N565 | <<locked>> | 80% | 44,121 psi | 68% | 2861 fps | 96.8% |
| Vihtavuori N568 | <<locked>> | 84% | 43,874 psi | 67% | 2904 fps | 95.3% |
| Vihtavuori N570 | 77.7 gr | 90% | 50,227 psi | 77% | 3077 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 80% | 46,238 psi | 71% | 2979 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 48,298 psi | 74% | 2884 fps | 98.9% |
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 51 powders for .27 Nosler loaded with the .277 | 140gr | Hornady SST. Hodgdon Retumbo delivers the highest muzzle velocity at 3,248 fps; across all powders the maximum-charge window runs from 1,978 fps to 3,248 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 51 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.277" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, IMR 8133 Enduron, ReloadSwiss RS 14 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 | 140gr | Hornady SST 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.