Load Specifications
Load data in caliber .26 Nosler with .264 | 142gr | Sierra MatchKing bullet and 28 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% | 55,753 psi | 86% | 2989 fps | 98.4% |
| ADI AR 2217 | <<locked>> | 88% | 57,667 psi | 89% | 3012 fps | 100% |
| ADI AR 2218 | <<locked>> | 92% | 58,392 psi | 90% | 3153 fps | 99.4% |
| ADI AR 2225 | <<locked>> | 90% | 58,465 psi | 90% | 3051 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 84% | 58,305 psi | 90% | 3002 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 88% | 57,827 psi | 89% | 3077 fps | 99.1% |
| Alliant Reloder-50 | <<locked>> | 90% | 56,492 psi | 87% | 3041 fps | 98.5% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 56,217 psi | 86% | 2959 fps | 99% |
| Bofors RP15 | <<locked>> | 82% | 58,349 psi | 90% | 3009 fps | 100% |
| Bofors RP30 | <<locked>> | 84% | 55,637 psi | 86% | 2989 fps | 100% |
| Hodgdon H1000 | <<locked>> | 86% | 58,711 psi | 90% | 3025 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 58,334 psi | 90% | 3107 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,725 psi | 60% | 1936 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 86% | 57,464 psi | 88% | 2923 fps | 96.5% |
| IMR 8133 Enduron | <<locked>> | 92% | 58,450 psi | 90% | 3051 fps | 100% |
| Lovex S071 | <<locked>> | 82% | 55,854 psi | 86% | 2867 fps | 100% |
| Norma 217 | <<locked>> | 90% | 57,000 psi | 88% | 3022 fps | 100% |
| Ramshot Magnum | <<locked>> | 82% | 57,319 psi | 88% | 2966 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 40,016 psi | 62% | 1982 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 82% | 55,492 psi | 85% | 3035 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 55,448 psi | 85% | 3018 fps | 99.8% |
| SNPE Vectan SP 13 | <<locked>> | 96% | 57,711 psi | 89% | 2999 fps | 98.4% |
| Vihtavuori 20N29 | <<locked>> | 98% | 55,521 psi | 85% | 2982 fps | 96.6% |
| Vihtavuori N165 | <<locked>> | 82% | 58,639 psi | 90% | 2933 fps | 100% |
| Vihtavuori N170 | <<locked>> | 84% | 55,535 psi | 85% | 2930 fps | 97.5% |
| Vihtavuori N565 | <<locked>> | 82% | 57,377 psi | 88% | 2999 fps | 100% |
| Vihtavuori N568 | <<locked>> | 84% | 55,477 psi | 85% | 3015 fps | 99.6% |
| Vihtavuori N570 | <<locked>> | 86% | 56,927 psi | 88% | 3084 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% | 43,381 psi | 67% | 2756 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 80% | 45,092 psi | 69% | 2792 fps | 99.4% |
| ADI AR 2218 | 73.6 gr | 82% | 42,467 psi | 65% | 2825 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 80% | 43,120 psi | 66% | 2785 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 51,895 psi | 80% | 2904 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 80% | 44,904 psi | 69% | 2835 fps | 96.5% |
| Alliant Reloder-50 | 74.8 gr | 82% | 44,280 psi | 68% | 2805 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 52,953 psi | 81% | 2904 fps | 98.5% |
| Bofors RP15 | <<locked>> | 80% | 55,100 psi | 85% | 2956 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 49,545 psi | 76% | 2881 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 80% | 48,675 psi | 75% | 2858 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 80% | 51,445 psi | 79% | 2992 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 29,298 psi | 45% | 1732 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 82% | 51,271 psi | 79% | 2815 fps | 95.1% |
| IMR 8133 Enduron | <<locked>> | 80% | 41,495 psi | 64% | 2733 fps | 98.7% |
| Lovex S071 | <<locked>> | 80% | 52,895 psi | 81% | 2822 fps | 100% |
| Norma 217 | 66.4 gr | 80% | 42,612 psi | 66% | 2766 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 80% | 53,766 psi | 83% | 2910 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 30,342 psi | 47% | 1775 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 52,011 psi | 80% | 2979 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 48,965 psi | 75% | 2900 fps | 99.1% |
| SNPE Vectan SP 13 | <<locked>> | 86% | 43,279 psi | 67% | 2730 fps | 95% |
| Vihtavuori 20N29 | <<locked>> | 96% | 52,330 psi | 81% | 2927 fps | 95.8% |
| Vihtavuori N165 | <<locked>> | 80% | 55,317 psi | 85% | 2884 fps | 100% |
| Vihtavuori N170 | <<locked>> | 80% | 49,516 psi | 76% | 2818 fps | 96.2% |
| Vihtavuori N565 | <<locked>> | 80% | 54,143 psi | 83% | 2943 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 80% | 49,008 psi | 75% | 2897 fps | 98.7% |
| Vihtavuori N570 | <<locked>> | 80% | 47,326 psi | 73% | 2897 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 28 powders for .26 Nosler loaded with the .264 | 142gr | Sierra MatchKing. ADI AR 2218 delivers the highest muzzle velocity at 3,153 fps; across all powders the maximum-charge window runs from 1,936 fps to 3,153 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 28 of the 28 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 142.0 gr projectile in 0.264" calls for a 1:8.5 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 | 142gr | Sierra MatchKing 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.