Load Specifications
Load data in caliber .27 Nosler with .277 | 145gr | Fox Classic Hunter bullet and 54 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and ReloadSwiss RS 80.
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>> | 86% | 56,231 psi | 87% | 2963 fps | 100% |
| Accurate High Country | <<locked>> | 84% | 56,637 psi | 87% | 3104 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 86% | 57,566 psi | 89% | 3107 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 84% | 55,535 psi | 85% | 3022 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 88% | 57,479 psi | 88% | 3094 fps | 99.5% |
| ADI AR 2217 | <<locked>> | 96% | 56,072 psi | 86% | 3068 fps | 99.6% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 56,608 psi | 87% | 3176 fps | 97.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 58,624 psi | 90% | 3156 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 55,970 psi | 86% | 3022 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 55,970 psi | 86% | 3022 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 86% | 58,798 psi | 90% | 3068 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 88% | 58,508 psi | 90% | 3097 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 88% | 56,884 psi | 88% | 3009 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 56,405 psi | 87% | 3077 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 57,682 psi | 89% | 3104 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 58,465 psi | 90% | 3169 fps | 97.6% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 55,158 psi | 85% | 3104 fps | 96.4% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 57,537 psi | 89% | 3041 fps | 97.5% |
| Bofors RP15 | <<locked>> | 90% | 57,754 psi | 89% | 3084 fps | 99.9% |
| Bofors RP30 | <<locked>> | 94% | 56,942 psi | 88% | 3097 fps | 99.7% |
| Bofors RP5 | <<locked>> | 88% | 58,508 psi | 90% | 3097 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 94% | 57,537 psi | 89% | 3091 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 86% | 56,782 psi | 87% | 3025 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 86% | 55,724 psi | 86% | 3005 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 56,492 psi | 87% | 2940 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 55,405 psi | 85% | 3163 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,043 psi | 59% | 1932 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 57,841 psi | 89% | 2995 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 57,116 psi | 88% | 2999 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 88% | 56,014 psi | 86% | 3077 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 54,665 psi | 84% | 3081 fps | 99.4% |
| Lovex S071 | <<locked>> | 92% | 57,899 psi | 89% | 2986 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 56,014 psi | 86% | 3114 fps | 100% |
| Norma MRP | <<locked>> | 86% | 58,653 psi | 90% | 3117 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 57,246 psi | 88% | 3104 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 90% | 55,912 psi | 86% | 3035 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,233 psi | 60% | 1982 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 56,188 psi | 86% | 3153 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 56,144 psi | 86% | 3120 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 84% | 56,202 psi | 86% | 2989 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 84% | 55,564 psi | 85% | 3012 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 58,639 psi | 90% | 3061 fps | 99.9% |
| Somchem S361 | <<locked>> | 84% | 57,725 psi | 89% | 2982 fps | 99.1% |
| Somchem S365 | <<locked>> | 82% | 58,668 psi | 90% | 3005 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 56,188 psi | 86% | 2982 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 55,680 psi | 86% | 2966 fps | 99.9% |
| Vihtavuori N170 | <<locked>> | 94% | 58,740 psi | 90% | 3041 fps | 96% |
| Vihtavuori N555 | <<locked>> | 84% | 55,970 psi | 86% | 2992 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 57,812 psi | 89% | 3110 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 90% | 55,927 psi | 86% | 3058 fps | 99.2% |
| Vihtavuori N568 | <<locked>> | 94% | 56,594 psi | 87% | 3117 fps | 98.5% |
| Vihtavuori N570 | <<locked>> | 96% | 57,464 psi | 88% | 3176 fps | 97% |
| Winchester StaBALL HD | <<locked>> | 88% | 56,579 psi | 87% | 3107 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 55,463 psi | 85% | 2972 fps | 99.7% |
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% | 46,876 psi | 72% | 2802 fps | 99.9% |
| Accurate High Country | <<locked>> | 80% | 49,835 psi | 77% | 2979 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 80% | 47,369 psi | 73% | 2920 fps | 96.9% |
| ADI AR 2209 | <<locked>> | 80% | 49,110 psi | 76% | 2907 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 80% | 44,512 psi | 68% | 2851 fps | 97.3% |
| ADI AR 2217 | <<locked>> | 84% | 38,754 psi | 60% | 2717 fps | 95.8% |
| ADI AR 2218 | <<locked>> | 96% | 49,400 psi | 76% | 3031 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 80% | 32,227 psi | 50% | 2589 fps | 96.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 49,487 psi | 76% | 2907 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 49,487 psi | 76% | 2907 fps | 99.1% |
| Alliant Reloder-19 | <<locked>> | 80% | 49,095 psi | 76% | 2900 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 45,658 psi | 70% | 2864 fps | 98.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 44,614 psi | 69% | 2808 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 39,059 psi | 60% | 2753 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 50,299 psi | 77% | 2986 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 50,981 psi | 78% | 3038 fps | 95.9% |
| Alliant Reloder-50 | <<locked>> | 98% | 51,445 psi | 79% | 3038 fps | 95.4% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 48,254 psi | 74% | 2867 fps | 95.4% |
| Bofors RP15 | <<locked>> | 80% | 42,815 psi | 66% | 2805 fps | 97.9% |
| Bofors RP30 | <<locked>> | 80% | 37,043 psi | 57% | 2694 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 45,658 psi | 70% | 2864 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 80% | 37,115 psi | 57% | 2677 fps | 95.9% |
| Hodgdon H4831 | <<locked>> | 80% | 47,166 psi | 73% | 2851 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 46,282 psi | 71% | 2831 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 53,142 psi | 82% | 2890 fps | 100% |
| Hodgdon Retumbo | 65 gr | 80% | 38,232 psi | 59% | 2795 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,776 psi | 44% | 1732 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 54,520 psi | 84% | 2943 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 80% | 47,921 psi | 74% | 2835 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 80% | 43,424 psi | 67% | 2835 fps | 97.1% |
| IMR 8133 Enduron | <<locked>> | 88% | 38,101 psi | 59% | 2743 fps | 95.7% |
| Lovex S071 | <<locked>> | 80% | 41,191 psi | 63% | 2687 fps | 99.4% |
| Norma 217 | <<locked>> | 82% | 32,242 psi | 50% | 2605 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 48,298 psi | 74% | 2940 fps | 99.7% |
| Ramshot Grand | <<locked>> | 80% | 43,743 psi | 67% | 2854 fps | 97.5% |
| Ramshot Magnum | <<locked>> | 80% | 39,972 psi | 61% | 2740 fps | 98.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,573 psi | 45% | 1772 fps | 100% |
| ReloadSwiss RS 76 | 69.6 gr | 80% | 37,782 psi | 58% | 2779 fps | 98.5% |
| ReloadSwiss RS 80 | 75.4 gr | 86% | 42,757 psi | 66% | 2861 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 49,893 psi | 77% | 2877 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 80% | 49,037 psi | 75% | 2894 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 48,718 psi | 75% | 2890 fps | 99.1% |
| Somchem S361 | <<locked>> | 80% | 51,140 psi | 79% | 2867 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 55,216 psi | 85% | 2956 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 49,835 psi | 77% | 2874 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 80% | 43,729 psi | 67% | 2749 fps | 98.7% |
| Vihtavuori N170 | <<locked>> | 92% | 55,143 psi | 85% | 2982 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 80% | 49,893 psi | 77% | 2894 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 47,747 psi | 73% | 2927 fps | 97.6% |
| Vihtavuori N565 | <<locked>> | 80% | 41,249 psi | 63% | 2766 fps | 96.1% |
| Vihtavuori N568 | <<locked>> | 86% | 43,758 psi | 67% | 2871 fps | 95.5% |
| Vihtavuori N570 | <<locked>> | 92% | 50,560 psi | 78% | 3048 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 42,888 psi | 66% | 2881 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 45,847 psi | 71% | 2802 fps | 98.6% |
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 54 powders for .27 Nosler loaded with the .277 | 145gr | Fox Classic Hunter. ADI AR 2218 delivers the highest muzzle velocity at 3,176 fps; across all powders the maximum-charge window runs from 1,932 fps to 3,176 fps. ADI AR 2218 gives the best case fill at 100 %, and 54 of the 54 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 145.0 gr projectile in 0.277" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-50 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. Hodgdon Retumbo, ReloadSwiss RS 76, ReloadSwiss RS 80 rank at the top here: for .27 Nosler with the .277 | 145gr | Fox Classic Hunter 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.