Load Specifications
Load data in caliber .27 Nosler with .277 | 140gr | Sierra GameKing bullet and 65 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>> | 90% | 57,682 psi | 89% | 3058 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 58,073 psi | 89% | 3081 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 57,464 psi | 88% | 3166 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 86% | 55,201 psi | 85% | 3087 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 90% | 57,290 psi | 88% | 3159 fps | 99.4% |
| ADI AR 2217 | <<locked>> | 98% | 55,608 psi | 86% | 3127 fps | 99.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 54,143 psi | 83% | 3150 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 55,970 psi | 86% | 3064 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 82% | 55,390 psi | 85% | 3081 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 58,537 psi | 90% | 3133 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 90% | 57,638 psi | 89% | 3153 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 90% | 55,550 psi | 85% | 3061 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 55,535 psi | 85% | 3130 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 56,086 psi | 86% | 3150 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 57,595 psi | 89% | 3215 fps | 97.2% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 57,957 psi | 89% | 3114 fps | 97.5% |
| Bofors RP15 | <<locked>> | 92% | 56,797 psi | 87% | 3140 fps | 99.8% |
| Bofors RP30 | <<locked>> | 96% | 55,332 psi | 85% | 3136 fps | 99.4% |
| Bofors RP5 | <<locked>> | 90% | 57,638 psi | 89% | 3153 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 96% | 57,217 psi | 88% | 3153 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 88% | 56,608 psi | 87% | 3091 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 88% | 55,477 psi | 85% | 3071 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 55,593 psi | 86% | 3002 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 58,552 psi | 90% | 3278 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,608 psi | 58% | 1982 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 57,638 psi | 89% | 3064 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 58,204 psi | 90% | 3068 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 57,058 psi | 88% | 3071 fps | 99% |
| IMR 7828 SSC | <<locked>> | 90% | 55,506 psi | 85% | 3136 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 49,574 psi | 76% | 3051 fps | 98.6% |
| Lovex S065 | <<locked>> | 82% | 57,812 psi | 89% | 3041 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 56,159 psi | 86% | 3038 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 55,463 psi | 85% | 3022 fps | 100% |
| Norma 204 | <<locked>> | 82% | 55,245 psi | 85% | 3064 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 50,314 psi | 77% | 3077 fps | 99.8% |
| Norma MRP | <<locked>> | 88% | 57,754 psi | 89% | 3169 fps | 100% |
| Norma URP | <<locked>> | 82% | 56,043 psi | 86% | 3054 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 56,623 psi | 87% | 3163 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 82% | 55,201 psi | 85% | 3064 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 55,187 psi | 85% | 3091 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,450 psi | 59% | 2024 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 58,233 psi | 90% | 3104 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 56,811 psi | 87% | 3130 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 55,317 psi | 85% | 3202 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 54,650 psi | 84% | 3153 fps | 98.5% |
| Rottweil R 904 | <<locked>> | 86% | 55,767 psi | 86% | 3054 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 88% | 58,204 psi | 90% | 3127 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 82% | 57,812 psi | 89% | 3041 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 56,159 psi | 86% | 3038 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 56,695 psi | 87% | 2992 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 57,812 psi | 89% | 3120 fps | 99.9% |
| Somchem S361 | <<locked>> | 86% | 57,363 psi | 88% | 3045 fps | 98.9% |
| Somchem S365 | <<locked>> | 84% | 57,508 psi | 88% | 3064 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 58,624 psi | 90% | 3094 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 57,696 psi | 89% | 3048 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 58,334 psi | 90% | 3074 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 56,942 psi | 88% | 3054 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 57,479 psi | 88% | 3091 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 57,246 psi | 88% | 3169 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 94% | 57,914 psi | 89% | 3156 fps | 99.3% |
| Vihtavuori N568 | <<locked>> | 96% | 55,347 psi | 85% | 3159 fps | 98.1% |
| Vihtavuori N570 | <<locked>> | 98% | 56,376 psi | 87% | 3219 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 57,305 psi | 88% | 2999 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 54,940 psi | 85% | 3146 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 58,595 psi | 90% | 3091 fps | 99.9% |
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% | 41,089 psi | 63% | 2759 fps | 99.2% |
| Accurate 4350 | <<locked>> | 80% | 54,215 psi | 83% | 3022 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 46,485 psi | 72% | 2959 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 45,020 psi | 69% | 2894 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 80% | 40,335 psi | 62% | 2822 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 88% | 39,552 psi | 61% | 2802 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 84% | 31,502 psi | 48% | 2625 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 52,823 psi | 81% | 3009 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,721 psi | 80% | 3022 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 45,020 psi | 69% | 2887 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,988 psi | 63% | 2831 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,740 psi | 61% | 2779 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,301 psi | 53% | 2697 fps | 98.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,846 psi | 69% | 2949 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 49,385 psi | 76% | 3064 fps | 95.1% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 47,819 psi | 74% | 2923 fps | 95% |
| Bofors RP15 | <<locked>> | 80% | 38,261 psi | 59% | 2766 fps | 96.2% |
| Bofors RP30 | <<locked>> | 86% | 39,378 psi | 61% | 2812 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 40,988 psi | 63% | 2831 fps | 97.3% |
| Hodgdon H1000 | <<locked>> | 84% | 37,594 psi | 58% | 2756 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 80% | 43,047 psi | 66% | 2831 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 80% | 42,192 psi | 65% | 2812 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,762 psi | 75% | 2894 fps | 100% |
| Hodgdon Retumbo | 69.7 gr | 82% | 35,984 psi | 55% | 2792 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,210 psi | 43% | 1772 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,676 psi | 78% | 2949 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 51,242 psi | 79% | 2959 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 44,150 psi | 68% | 2825 fps | 96.5% |
| IMR 7828 SSC | <<locked>> | 80% | 39,131 psi | 60% | 2802 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 92% | 37,695 psi | 58% | 2789 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 54,273 psi | 83% | 2986 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 52,866 psi | 81% | 2986 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,346 psi | 54% | 2625 fps | 97.9% |
| Norma 204 | <<locked>> | 80% | 51,503 psi | 79% | 2999 fps | 99.2% |
| Norma 217 | <<locked>> | 88% | 32,967 psi | 51% | 2684 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 43,410 psi | 67% | 2904 fps | 98.9% |
| Norma URP | <<locked>> | 80% | 52,663 psi | 81% | 3002 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 39,059 psi | 60% | 2812 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 51,547 psi | 79% | 3002 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 35,085 psi | 54% | 2684 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,863 psi | 44% | 1814 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 54,346 psi | 84% | 3041 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 52,823 psi | 81% | 3064 fps | 100% |
| ReloadSwiss RS 76 | 72.7 gr | 80% | 32,677 psi | 50% | 2690 fps | 95.9% |
| ReloadSwiss RS 80 | 82.5 gr | 90% | 43,468 psi | 67% | 2933 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 46,122 psi | 71% | 2874 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 80% | 44,614 psi | 69% | 2877 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 54,273 psi | 83% | 2986 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 52,866 psi | 81% | 2986 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 53,301 psi | 82% | 2936 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 44,266 psi | 68% | 2871 fps | 98.1% |
| Somchem S361 | <<locked>> | 80% | 46,963 psi | 72% | 2858 fps | 97.1% |
| Somchem S365 | <<locked>> | 80% | 50,154 psi | 77% | 2949 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 44,991 psi | 69% | 2854 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 80% | 54,056 psi | 83% | 2992 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 39,291 psi | 60% | 2723 fps | 97.4% |
| Vihtavuori N550 | <<locked>> | 80% | 53,432 psi | 82% | 2999 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 44,338 psi | 68% | 2864 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 43,207 psi | 66% | 2897 fps | 96.1% |
| Vihtavuori N565 | <<locked>> | 84% | 41,162 psi | 63% | 2828 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 90% | 44,643 psi | 69% | 2949 fps | 95.4% |
| Vihtavuori N570 | <<locked>> | 96% | 52,562 psi | 81% | 3146 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 53,316 psi | 82% | 2940 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 37,376 psi | 58% | 2825 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,336 psi | 64% | 2776 fps | 97.4% |
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 65 powders for .27 Nosler loaded with the .277 | 140gr | Sierra GameKing. Hodgdon Retumbo delivers the highest muzzle velocity at 3,278 fps; across all powders the maximum-charge window runs from 1,982 fps to 3,278 fps. ADI AR 2225 gives the best case fill at 100 %, and 65 of the 65 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 140.0 gr projectile in 0.277" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-33, Hodgdon TrailBoss 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 | 140gr | Sierra GameKing 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.