Load Specifications
Load data in caliber .27 Nosler with .277 | 140gr | Winchester Silvertip bullet and 61 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Vihtavuori N570 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% | 55,216 psi | 85% | 3018 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 58,001 psi | 89% | 3182 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 86% | 56,550 psi | 87% | 3107 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 90% | 58,798 psi | 90% | 3182 fps | 99.5% |
| ADI AR 2217 | <<locked>> | 98% | 57,406 psi | 88% | 3156 fps | 99.7% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 53,635 psi | 83% | 3182 fps | 96.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 55,956 psi | 86% | 3176 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 57,072 psi | 88% | 3081 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 56,739 psi | 87% | 3100 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 56,130 psi | 86% | 3097 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 88% | 55,434 psi | 85% | 3114 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 90% | 57,145 psi | 88% | 3084 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 57,348 psi | 88% | 3153 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 58,015 psi | 89% | 3173 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 55,361 psi | 85% | 3173 fps | 96.8% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 55,637 psi | 86% | 3074 fps | 97.2% |
| Bofors RP15 | <<locked>> | 92% | 58,291 psi | 90% | 3159 fps | 99.9% |
| Bofors RP30 | <<locked>> | 96% | 56,985 psi | 88% | 3163 fps | 99.6% |
| Bofors RP5 | <<locked>> | 88% | 55,434 psi | 85% | 3114 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 94% | 54,897 psi | 84% | 3114 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 88% | 57,798 psi | 89% | 3110 fps | 99.1% |
| Hodgdon H4831 SC | <<locked>> | 88% | 56,913 psi | 88% | 3097 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 56,869 psi | 87% | 3022 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 56,391 psi | 87% | 3238 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,550 psi | 58% | 1988 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 55,158 psi | 85% | 3028 fps | 99.9% |
| IMR 4831 | <<locked>> | 82% | 55,956 psi | 86% | 3035 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 58,204 psi | 90% | 3091 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 90% | 57,072 psi | 88% | 3163 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 51,155 psi | 79% | 3074 fps | 98.9% |
| Lovex S070 | <<locked>> | 82% | 57,508 psi | 88% | 3061 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 56,942 psi | 88% | 3045 fps | 100% |
| Norma 204 | <<locked>> | 82% | 56,333 psi | 87% | 3084 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 52,214 psi | 80% | 3107 fps | 99.9% |
| Norma MRP | <<locked>> | 86% | 55,317 psi | 85% | 3130 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,493 psi | 88% | 3077 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 58,523 psi | 90% | 3189 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 82% | 56,318 psi | 87% | 3081 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 56,869 psi | 87% | 3114 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,551 psi | 59% | 2034 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 58,450 psi | 90% | 3153 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 57,305 psi | 88% | 3228 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 56,695 psi | 87% | 3182 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 86% | 57,029 psi | 88% | 3074 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 86% | 55,782 psi | 86% | 3087 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 82% | 57,508 psi | 88% | 3061 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 57,972 psi | 89% | 3012 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 55,390 psi | 85% | 3081 fps | 99.7% |
| Somchem S361 | <<locked>> | 86% | 58,595 psi | 90% | 3068 fps | 99.2% |
| Somchem S365 | <<locked>> | 82% | 55,042 psi | 85% | 3025 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 56,217 psi | 86% | 3058 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 56,231 psi | 87% | 3045 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 82% | 58,262 psi | 90% | 3074 fps | 100% |
| Vihtavuori N555 | <<locked>> | 86% | 55,288 psi | 85% | 3054 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 58,711 psi | 90% | 3192 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 92% | 55,622 psi | 86% | 3117 fps | 99.1% |
| Vihtavuori N568 | <<locked>> | 96% | 57,145 psi | 88% | 3189 fps | 98.5% |
| Vihtavuori N570 | <<locked>> | 98% | 58,508 psi | 90% | 3251 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 58,465 psi | 90% | 3012 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 57,029 psi | 88% | 3169 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 56,130 psi | 86% | 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% | 42,192 psi | 65% | 2782 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 80% | 43,772 psi | 67% | 2904 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 46,151 psi | 71% | 2917 fps | 98.5% |
| ADI AR 2213 | <<locked>> | 80% | 41,553 psi | 64% | 2848 fps | 96.2% |
| ADI AR 2217 | <<locked>> | 86% | 37,942 psi | 58% | 2759 fps | 95.3% |
| ADI AR 2218 | <<locked>> | 98% | 49,937 psi | 77% | 3104 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 84% | 32,445 psi | 50% | 2654 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 53,911 psi | 83% | 3028 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,084 psi | 82% | 3041 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,108 psi | 71% | 2910 fps | 98.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,264 psi | 65% | 2854 fps | 97.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 40,944 psi | 63% | 2802 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,331 psi | 54% | 2720 fps | 98.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 46,296 psi | 71% | 2972 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 51,271 psi | 79% | 3097 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 48,820 psi | 75% | 2946 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 39,334 psi | 61% | 2785 fps | 96.6% |
| Bofors RP30 | <<locked>> | 84% | 37,913 psi | 58% | 2772 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 42,264 psi | 65% | 2854 fps | 97.7% |
| Hodgdon H1000 | <<locked>> | 82% | 35,955 psi | 55% | 2710 fps | 95.1% |
| Hodgdon H4831 | <<locked>> | 80% | 44,092 psi | 68% | 2851 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,381 psi | 67% | 2835 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 49,835 psi | 77% | 2910 fps | 100% |
| Hodgdon Retumbo | 69.6 gr | 80% | 34,577 psi | 53% | 2753 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,210 psi | 43% | 1778 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 51,793 psi | 80% | 2969 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 52,475 psi | 81% | 2979 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,136 psi | 69% | 2844 fps | 96.9% |
| IMR 7828 SSC | <<locked>> | 80% | 40,205 psi | 62% | 2825 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 92% | 39,015 psi | 60% | 2818 fps | 95.7% |
| Lovex S070 | <<locked>> | 80% | 54,027 psi | 83% | 3005 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 36,318 psi | 56% | 2648 fps | 98.2% |
| Norma 204 | <<locked>> | 80% | 52,823 psi | 81% | 3025 fps | 99.4% |
| Norma 217 | <<locked>> | 88% | 34,243 psi | 53% | 2713 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 44,715 psi | 69% | 2930 fps | 99.2% |
| Norma URP | <<locked>> | 80% | 53,925 psi | 83% | 3022 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 40,161 psi | 62% | 2838 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 80% | 52,895 psi | 81% | 3025 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 36,042 psi | 55% | 2703 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,008 psi | 45% | 1824 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 54,259 psi | 83% | 3084 fps | 100% |
| ReloadSwiss RS 76 | 74.5 gr | 80% | 33,808 psi | 52% | 2720 fps | 96.6% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 41,756 psi | 64% | 2887 fps | 95.1% |
| Rottweil R 904 | <<locked>> | 80% | 47,021 psi | 72% | 2890 fps | 97.8% |
| Rottweil R 905 | <<locked>> | 80% | 45,745 psi | 70% | 2900 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 80% | 54,027 psi | 83% | 3005 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 54,360 psi | 84% | 2956 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,426 psi | 70% | 2897 fps | 98.5% |
| Somchem S361 | <<locked>> | 80% | 48,037 psi | 74% | 2881 fps | 97.4% |
| Somchem S365 | <<locked>> | 80% | 51,488 psi | 79% | 2969 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,267 psi | 71% | 2877 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 80% | 40,306 psi | 62% | 2743 fps | 97.7% |
| Vihtavuori N550 | <<locked>> | 80% | 54,534 psi | 84% | 3015 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 45,397 psi | 70% | 2884 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 44,454 psi | 68% | 2923 fps | 96.5% |
| Vihtavuori N565 | <<locked>> | 82% | 39,624 psi | 61% | 2789 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 90% | 46,151 psi | 71% | 2979 fps | 96% |
| Vihtavuori N570 | 84.9 gr | 94% | 50,618 psi | 78% | 3104 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 54,723 psi | 84% | 2959 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 38,914 psi | 60% | 2851 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,511 psi | 65% | 2799 fps | 97.7% |
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 61 powders for .27 Nosler loaded with the .277 | 140gr | Winchester Silvertip. Vihtavuori N570 delivers the highest muzzle velocity at 3,251 fps; across all powders the maximum-charge window runs from 1,988 fps to 3,251 fps. ADI AR 2218 gives the best case fill at 100 %, and 61 of the 61 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 1:14.5 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. Hodgdon Retumbo, Vihtavuori N570, ReloadSwiss RS 76 rank at the top here: for .27 Nosler with the .277 | 140gr | Winchester Silvertip 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.