Load Specifications
Load data in caliber .27 Nosler with .277 | 150gr | Sierra SBT GameKing bullet and 59 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>> | 88% | 55,941 psi | 86% | 2940 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 55,840 psi | 86% | 3051 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 86% | 57,319 psi | 88% | 3031 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 88% | 55,564 psi | 85% | 3041 fps | 99.5% |
| ADI AR 2217 | <<locked>> | 98% | 58,117 psi | 89% | 3077 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 54,462 psi | 84% | 3120 fps | 97.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 56,695 psi | 87% | 3097 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 57,769 psi | 89% | 3002 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 57,392 psi | 88% | 3015 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 56,898 psi | 88% | 3018 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 88% | 56,014 psi | 86% | 3035 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 90% | 57,914 psi | 89% | 3002 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 58,044 psi | 89% | 3074 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 58,668 psi | 90% | 3091 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 56,028 psi | 86% | 3104 fps | 97.6% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 56,231 psi | 87% | 3002 fps | 97.8% |
| Bofors RP15 | <<locked>> | 90% | 55,434 psi | 85% | 3025 fps | 99.9% |
| Bofors RP30 | <<locked>> | 96% | 57,856 psi | 89% | 3087 fps | 99.9% |
| Bofors RP5 | <<locked>> | 88% | 56,014 psi | 86% | 3035 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 94% | 55,666 psi | 86% | 3041 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 88% | 58,595 psi | 90% | 3035 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 88% | 57,435 psi | 88% | 3015 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 57,566 psi | 89% | 2936 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 57,261 psi | 88% | 3163 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,666 psi | 58% | 1916 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 55,796 psi | 86% | 2943 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 56,652 psi | 87% | 2953 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 58,784 psi | 90% | 3009 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 90% | 57,827 psi | 89% | 3084 fps | 99.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 51,909 psi | 80% | 3005 fps | 99.3% |
| Lovex S070 | <<locked>> | 82% | 58,131 psi | 89% | 2976 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 57,740 psi | 89% | 2966 fps | 100% |
| Norma 204 | <<locked>> | 82% | 57,029 psi | 88% | 3002 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 53,069 psi | 82% | 3035 fps | 100% |
| Norma MRP | <<locked>> | 86% | 56,173 psi | 86% | 3054 fps | 100% |
| Norma URP | <<locked>> | 82% | 58,189 psi | 90% | 2995 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 55,129 psi | 85% | 3045 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 82% | 56,985 psi | 88% | 3002 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 57,580 psi | 89% | 3035 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,725 psi | 60% | 1962 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 58,189 psi | 90% | 3150 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 57,464 psi | 88% | 3114 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 86% | 57,682 psi | 89% | 2995 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 86% | 56,565 psi | 87% | 3009 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 58,131 psi | 89% | 2976 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 58,624 psi | 90% | 2933 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 56,159 psi | 86% | 3005 fps | 99.9% |
| Somchem S361 | <<locked>> | 84% | 55,593 psi | 86% | 2933 fps | 99.1% |
| Somchem S365 | <<locked>> | 82% | 55,811 psi | 86% | 2943 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 56,840 psi | 87% | 2976 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 56,826 psi | 87% | 2966 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 55,796 psi | 86% | 2976 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 86% | 55,985 psi | 86% | 2976 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 55,666 psi | 86% | 3054 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 92% | 56,347 psi | 87% | 3045 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 96% | 57,870 psi | 89% | 3114 fps | 99% |
| Vihtavuori N570 | <<locked>> | 96% | 55,158 psi | 85% | 3110 fps | 97% |
| Winchester StaBALL HD | <<locked>> | 90% | 57,870 psi | 89% | 3087 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 56,739 psi | 87% | 2972 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% | 42,743 psi | 66% | 2713 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 80% | 42,119 psi | 65% | 2782 fps | 95% |
| ADI AR 2209 | <<locked>> | 80% | 46,891 psi | 72% | 2848 fps | 99% |
| ADI AR 2213 | <<locked>> | 80% | 42,119 psi | 65% | 2782 fps | 97% |
| ADI AR 2217 | <<locked>> | 84% | 35,897 psi | 55% | 2635 fps | 95.2% |
| ADI AR 2218 | <<locked>> | 98% | 50,575 psi | 78% | 3045 fps | 96.3% |
| ADI AR 2225 | <<locked>> | 82% | 30,763 psi | 47% | 2536 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 54,404 psi | 84% | 2946 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,795 psi | 83% | 2959 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,673 psi | 72% | 2838 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,859 psi | 66% | 2789 fps | 98.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,597 psi | 64% | 2733 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,984 psi | 55% | 2661 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 47,123 psi | 72% | 2904 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 48,211 psi | 74% | 2959 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 46,369 psi | 71% | 2818 fps | 95.4% |
| Bofors RP15 | <<locked>> | 80% | 39,827 psi | 61% | 2720 fps | 97.4% |
| Bofors RP30 | <<locked>> | 82% | 35,911 psi | 55% | 2651 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 42,859 psi | 66% | 2789 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 80% | 34,084 psi | 52% | 2585 fps | 95% |
| Hodgdon H4831 | <<locked>> | 80% | 44,672 psi | 69% | 2785 fps | 97.1% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,947 psi | 68% | 2769 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,662 psi | 78% | 2831 fps | 100% |
| Hodgdon Retumbo | 67.1 gr | 80% | 35,099 psi | 54% | 2694 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,311 psi | 44% | 1713 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,489 psi | 81% | 2890 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 53,011 psi | 82% | 2894 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,745 psi | 70% | 2776 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 80% | 40,770 psi | 63% | 2759 fps | 96.7% |
| IMR 8133 Enduron | <<locked>> | 90% | 37,014 psi | 57% | 2697 fps | 95.6% |
| Lovex S070 | <<locked>> | 80% | 54,520 psi | 84% | 2920 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 36,898 psi | 57% | 2585 fps | 98.8% |
| Norma 204 | <<locked>> | 80% | 53,316 psi | 82% | 2943 fps | 99.7% |
| Norma 217 | <<locked>> | 86% | 32,518 psi | 50% | 2598 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 45,339 psi | 70% | 2861 fps | 99.6% |
| Norma URP | <<locked>> | 80% | 54,462 psi | 84% | 2940 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 40,901 psi | 63% | 2776 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 80% | 53,403 psi | 82% | 2943 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 36,680 psi | 56% | 2644 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,993 psi | 45% | 1752 fps | 100% |
| ReloadSwiss RS 76 | 71.8 gr | 80% | 34,272 psi | 53% | 2664 fps | 97.6% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 42,322 psi | 65% | 2828 fps | 96.1% |
| Rottweil R 904 | <<locked>> | 80% | 47,645 psi | 73% | 2818 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 80% | 46,282 psi | 71% | 2828 fps | 99% |
| Shooters World SW4350 | <<locked>> | 80% | 54,520 psi | 84% | 2920 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 54,882 psi | 84% | 2874 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,948 psi | 71% | 2825 fps | 99% |
| Somchem S361 | <<locked>> | 80% | 48,588 psi | 75% | 2808 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 52,344 psi | 81% | 2890 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,833 psi | 72% | 2805 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 80% | 40,785 psi | 63% | 2677 fps | 98.4% |
| Vihtavuori N170 | <<locked>> | 92% | 52,228 psi | 80% | 2917 fps | 95% |
| Vihtavuori N555 | <<locked>> | 80% | 46,093 psi | 71% | 2812 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 45,049 psi | 69% | 2851 fps | 97.3% |
| Vihtavuori N565 | <<locked>> | 80% | 37,565 psi | 58% | 2667 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 88% | 43,526 psi | 67% | 2844 fps | 95.8% |
| Vihtavuori N570 | 80.1 gr | 92% | 47,732 psi | 73% | 2966 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 80% | 39,610 psi | 61% | 2785 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 43,134 psi | 66% | 2733 fps | 98.4% |
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 59 powders for .27 Nosler loaded with the .277 | 150gr | Sierra SBT GameKing. Hodgdon Retumbo delivers the highest muzzle velocity at 3,163 fps; across all powders the maximum-charge window runs from 1,916 fps to 3,163 fps. ADI AR 2218 gives the best case fill at 100 %, and 59 of the 59 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 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, 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. Vihtavuori N570, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for .27 Nosler with the .277 | 150gr | Sierra SBT 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.