Load Specifications
Load data in caliber .26 Nosler with .264 | 140gr | Sierra GameKing bullet and 26 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Alliant Reloder-50 and Norma 217.
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 8700 | <<locked>> | 96% | 56,231 psi | 87% | 3012 fps | 98.4% |
| ADI AR 2217 | <<locked>> | 88% | 58,233 psi | 90% | 3038 fps | 100% |
| ADI AR 2218 | <<locked>> | 90% | 55,245 psi | 85% | 3114 fps | 99% |
| ADI AR 2225 | <<locked>> | 88% | 55,550 psi | 85% | 3022 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 82% | 55,434 psi | 85% | 2976 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 88% | 58,436 psi | 90% | 3104 fps | 99.1% |
| Alliant Reloder-50 | <<locked>> | 90% | 57,000 psi | 88% | 3071 fps | 98.6% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 56,666 psi | 87% | 2986 fps | 99% |
| Bofors RP30 | <<locked>> | 84% | 56,101 psi | 86% | 3012 fps | 100% |
| Hodgdon H1000 | <<locked>> | 84% | 55,550 psi | 85% | 2995 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 82% | 55,361 psi | 85% | 3074 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,682 psi | 60% | 1952 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 86% | 57,957 psi | 89% | 2949 fps | 96.6% |
| IMR 8133 Enduron | <<locked>> | 90% | 55,738 psi | 86% | 3022 fps | 100% |
| Lovex S071 | <<locked>> | 82% | 56,217 psi | 86% | 2894 fps | 100% |
| Norma 217 | <<locked>> | 90% | 57,609 psi | 89% | 3051 fps | 100% |
| Ramshot Magnum | <<locked>> | 82% | 57,682 psi | 89% | 2989 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,958 psi | 61% | 2001 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 82% | 56,144 psi | 86% | 3061 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 56,072 psi | 86% | 3045 fps | 99.8% |
| SNPE Vectan SP 13 | <<locked>> | 96% | 58,247 psi | 90% | 3025 fps | 98.4% |
| Vihtavuori 20N29 | <<locked>> | 98% | 56,115 psi | 86% | 3009 fps | 96.6% |
| Vihtavuori N170 | <<locked>> | 84% | 56,043 psi | 86% | 2956 fps | 97.6% |
| Vihtavuori N565 | <<locked>> | 82% | 57,769 psi | 89% | 3025 fps | 100% |
| Vihtavuori N568 | <<locked>> | 84% | 55,999 psi | 86% | 3041 fps | 99.6% |
| Vihtavuori N570 | <<locked>> | 86% | 57,537 psi | 89% | 3110 fps | 98.7% |
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 8700 | <<locked>> | 88% | 43,947 psi | 68% | 2782 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 80% | 45,585 psi | 70% | 2815 fps | 99.4% |
| ADI AR 2218 | 75 gr | 82% | 42,931 psi | 66% | 2851 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 80% | 43,584 psi | 67% | 2812 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 52,243 psi | 80% | 2927 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 80% | 45,281 psi | 70% | 2854 fps | 96.5% |
| Alliant Reloder-50 | 76.2 gr | 82% | 44,759 psi | 69% | 2831 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 53,316 psi | 82% | 2927 fps | 98.5% |
| Bofors RP30 | <<locked>> | 80% | 50,009 psi | 77% | 2907 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 80% | 49,139 psi | 76% | 2884 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 80% | 52,025 psi | 80% | 3018 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 29,414 psi | 45% | 1752 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 82% | 51,648 psi | 79% | 2838 fps | 95.1% |
| IMR 8133 Enduron | <<locked>> | 80% | 41,858 psi | 64% | 2756 fps | 98.7% |
| Lovex S071 | <<locked>> | 80% | 53,243 psi | 82% | 2848 fps | 100% |
| Norma 217 | 67.7 gr | 80% | 43,120 psi | 66% | 2792 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 80% | 54,157 psi | 83% | 2936 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 30,284 psi | 47% | 1791 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 52,446 psi | 81% | 2999 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 49,284 psi | 76% | 2923 fps | 99.1% |
| SNPE Vectan SP 13 | <<locked>> | 86% | 43,671 psi | 67% | 2753 fps | 95% |
| Vihtavuori 20N29 | <<locked>> | 94% | 49,748 psi | 77% | 2890 fps | 95% |
| Vihtavuori N170 | <<locked>> | 80% | 49,835 psi | 77% | 2841 fps | 96.2% |
| Vihtavuori N565 | <<locked>> | 80% | 54,607 psi | 84% | 2969 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 80% | 49,588 psi | 76% | 2923 fps | 98.7% |
| Vihtavuori N570 | <<locked>> | 80% | 47,732 psi | 73% | 2923 fps | 96.7% |
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 26 powders for .26 Nosler loaded with the .264 | 140gr | Sierra GameKing. ADI AR 2218 delivers the highest muzzle velocity at 3,114 fps; across all powders the maximum-charge window runs from 1,952 fps to 3,114 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 26 of the 26 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 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. ADI AR 2218, Alliant Reloder-50, Norma 217 rank at the top here: for .26 Nosler with the .264 | 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.