Load Specifications
Load data in caliber .27 Nosler with .277 | 160gr | Nosler Partition bullet and 52 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 80 and Vihtavuori N570.
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% | 57,899 psi | 89% | 2884 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 57,856 psi | 89% | 3002 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 84% | 55,448 psi | 85% | 2917 fps | 100% |
| ADI AR 2213 | <<locked>> | 88% | 57,609 psi | 89% | 2989 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 96% | 56,217 psi | 86% | 2966 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 56,739 psi | 87% | 3084 fps | 98.5% |
| ADI AR 2225 | <<locked>> | 98% | 55,216 psi | 85% | 2989 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 58,668 psi | 90% | 2959 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 58,030 psi | 89% | 2982 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 88% | 56,115 psi | 86% | 2887 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 56,478 psi | 87% | 2959 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 56,840 psi | 87% | 2972 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 58,537 psi | 90% | 3064 fps | 98.5% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 53,940 psi | 83% | 2982 fps | 97.2% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 57,943 psi | 89% | 2946 fps | 98.5% |
| Bofors RP15 | <<locked>> | 90% | 57,450 psi | 88% | 2969 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 56,376 psi | 87% | 2979 fps | 99.9% |
| Bofors RP5 | <<locked>> | 88% | 58,030 psi | 89% | 2982 fps | 100% |
| Hodgdon H1000 | <<locked>> | 94% | 57,885 psi | 89% | 2986 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 56,579 psi | 87% | 2917 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 55,448 psi | 85% | 2900 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 55,782 psi | 86% | 2822 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 55,622 psi | 86% | 3048 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,753 psi | 58% | 1854 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 57,479 psi | 88% | 2884 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 58,291 psi | 90% | 2884 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 56,927 psi | 88% | 2897 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 88% | 55,970 psi | 86% | 2969 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 54,215 psi | 83% | 2963 fps | 99.8% |
| Lovex S071 | <<locked>> | 92% | 56,057 psi | 86% | 2858 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 55,332 psi | 85% | 2986 fps | 100% |
| Norma MRP | <<locked>> | 86% | 58,363 psi | 90% | 2999 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 57,305 psi | 88% | 2995 fps | 100% |
| Ramshot Magnum | <<locked>> | 90% | 55,753 psi | 86% | 2923 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,856 psi | 60% | 1900 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 56,478 psi | 87% | 3038 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 55,608 psi | 86% | 3002 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 84% | 55,956 psi | 86% | 2884 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 86% | 58,378 psi | 90% | 2949 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 57,972 psi | 89% | 2946 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 57,101 psi | 88% | 2874 fps | 99.6% |
| Somchem S365 | <<locked>> | 82% | 57,841 psi | 89% | 2881 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 58,653 psi | 90% | 2920 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 58,769 psi | 90% | 2907 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 57,783 psi | 89% | 2933 fps | 97% |
| Vihtavuori N555 | <<locked>> | 86% | 58,102 psi | 89% | 2917 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 57,740 psi | 89% | 3002 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 92% | 58,653 psi | 90% | 2995 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 94% | 56,130 psi | 86% | 3002 fps | 99.2% |
| Vihtavuori N570 | <<locked>> | 96% | 57,450 psi | 88% | 3064 fps | 98% |
| Winchester StaBALL HD | <<locked>> | 88% | 56,449 psi | 87% | 2976 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 58,726 psi | 90% | 2920 fps | 100% |
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% | 44,353 psi | 68% | 2664 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 43,729 psi | 67% | 2743 fps | 96.3% |
| ADI AR 2209 | <<locked>> | 80% | 48,472 psi | 75% | 2795 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 80% | 43,772 psi | 67% | 2740 fps | 98.1% |
| ADI AR 2217 | <<locked>> | 82% | 34,954 psi | 54% | 2539 fps | 95.6% |
| ADI AR 2218 | <<locked>> | 94% | 45,484 psi | 70% | 2864 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 80% | 29,936 psi | 46% | 2444 fps | 96.5% |
| Alliant Reloder-19 | <<locked>> | 80% | 48,240 psi | 74% | 2785 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 44,541 psi | 69% | 2743 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 43,221 psi | 66% | 2677 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 37,492 psi | 58% | 2621 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 49,110 psi | 76% | 2854 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 46,702 psi | 72% | 2854 fps | 95.9% |
| Alliant Reloder-50 | <<locked>> | 96% | 46,354 psi | 71% | 2838 fps | 95.1% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 44,889 psi | 69% | 2710 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 41,350 psi | 64% | 2677 fps | 98.4% |
| Bofors RP30 | <<locked>> | 80% | 34,925 psi | 54% | 2552 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 44,541 psi | 69% | 2743 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 80% | 35,462 psi | 55% | 2556 fps | 96.5% |
| Hodgdon H4831 | <<locked>> | 80% | 46,253 psi | 71% | 2740 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 80% | 45,498 psi | 70% | 2723 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 52,286 psi | 80% | 2772 fps | 100% |
| Hodgdon Retumbo | 66.2 gr | 80% | 36,622 psi | 56% | 2664 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,427 psi | 44% | 1657 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 54,056 psi | 83% | 2831 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 54,723 psi | 84% | 2835 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 47,137 psi | 73% | 2726 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 80% | 42,409 psi | 65% | 2720 fps | 97.8% |
| IMR 8133 Enduron | <<locked>> | 88% | 36,056 psi | 55% | 2598 fps | 96% |
| Lovex S071 | <<locked>> | 80% | 38,421 psi | 59% | 2546 fps | 99.5% |
| Norma 217 | <<locked>> | 82% | 29,689 psi | 46% | 2444 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 47,253 psi | 73% | 2815 fps | 99.9% |
| Ramshot Grand | <<locked>> | 80% | 42,583 psi | 66% | 2733 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 80% | 38,421 psi | 59% | 2612 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,153 psi | 45% | 1696 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 35,795 psi | 55% | 2638 fps | 98.8% |
| ReloadSwiss RS 80 | 75 gr | 84% | 38,218 psi | 59% | 2661 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 49,139 psi | 76% | 2769 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 80% | 47,921 psi | 74% | 2776 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 47,587 psi | 73% | 2772 fps | 99.5% |
| Somchem S361 | <<locked>> | 80% | 50,053 psi | 77% | 2759 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 54,230 psi | 83% | 2828 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 48,472 psi | 75% | 2756 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 42,264 psi | 65% | 2631 fps | 99.1% |
| Vihtavuori N170 | <<locked>> | 90% | 50,575 psi | 78% | 2812 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 80% | 47,993 psi | 74% | 2759 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 46,862 psi | 72% | 2808 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 80% | 39,001 psi | 60% | 2625 fps | 96.4% |
| Vihtavuori N568 | <<locked>> | 84% | 39,392 psi | 61% | 2677 fps | 95.1% |
| Vihtavuori N570 | 77.3 gr | 90% | 46,441 psi | 71% | 2864 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 41,800 psi | 64% | 2743 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 44,527 psi | 69% | 2684 fps | 99.1% |
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 | 160gr | Nosler Partition. ADI AR 2218 delivers the highest muzzle velocity at 3,084 fps; across all powders the maximum-charge window runs from 1,854 fps to 3,084 fps. Accurate 8700 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 160.0 gr projectile in 0.277" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 8700, ADI AR 2218, 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 80, Vihtavuori N570 rank at the top here: for .27 Nosler with the .277 | 160gr | Nosler Partition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 8700, IMR 7977 Enduron, Lovex D100 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.