Load Specifications
Load data in caliber .26 Nosler with .264 | 155gr | Lapua Mega bullet and 23 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Accurate 8700 and Vihtavuori 20N29.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 8700 | <<locked>> | 94% | 57,334 psi | 88% | 2907 fps | 99.3% |
| ADI AR 2217 | <<locked>> | 84% | 55,376 psi | 85% | 2861 fps | 100% |
| ADI AR 2218 | <<locked>> | 88% | 56,202 psi | 86% | 3002 fps | 99.7% |
| ADI AR 2225 | <<locked>> | 86% | 56,652 psi | 87% | 2897 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 84% | 55,709 psi | 86% | 2930 fps | 99.4% |
| Alliant Reloder-50 | <<locked>> | 88% | 58,059 psi | 89% | 2956 fps | 99.4% |
| Bofors RP30 | <<locked>> | 82% | 56,695 psi | 87% | 2887 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 56,101 psi | 86% | 2867 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,957 psi | 60% | 1867 fps | 100% |
| Hodgdon US 869 | <<locked>> | 92% | 57,435 psi | 88% | 2904 fps | 96% |
| IMR 7977 Enduron | <<locked>> | 84% | 57,653 psi | 89% | 2828 fps | 97.6% |
| IMR 8133 Enduron | <<locked>> | 88% | 56,579 psi | 87% | 2904 fps | 100% |
| Lovex D100 | <<locked>> | 86% | 57,159 psi | 88% | 2848 fps | 96.5% |
| Norma 217 | <<locked>> | 88% | 58,682 psi | 90% | 2923 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 40,103 psi | 62% | 1909 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 82% | 56,768 psi | 87% | 2923 fps | 100% |
| Shooters World 50 BMG | <<locked>> | 86% | 57,159 psi | 88% | 2848 fps | 96.5% |
| SNPE Vectan SP 13 | <<locked>> | 92% | 55,767 psi | 86% | 2861 fps | 98.8% |
| Vihtavuori 20N29 | <<locked>> | 96% | 57,188 psi | 88% | 2907 fps | 97.9% |
| Vihtavuori 24N41 | <<locked>> | 90% | 57,058 psi | 88% | 2897 fps | 95.9% |
| Vihtavuori N170 | <<locked>> | 82% | 56,101 psi | 86% | 2838 fps | 98.5% |
| Vihtavuori N568 | <<locked>> | 82% | 56,681 psi | 87% | 2920 fps | 99.9% |
| Vihtavuori N570 | <<locked>> | 84% | 58,334 psi | 90% | 2992 fps | 99.4% |
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 | 73.3 gr | 82% | 39,755 psi | 61% | 2579 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 80% | 48,965 psi | 75% | 2753 fps | 100% |
| ADI AR 2218 | 73 gr | 80% | 43,569 psi | 67% | 2753 fps | 97.4% |
| ADI AR 2225 | <<locked>> | 80% | 47,195 psi | 73% | 2746 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 80% | 49,023 psi | 75% | 2808 fps | 98.4% |
| Alliant Reloder-50 | <<locked>> | 80% | 45,672 psi | 70% | 2733 fps | 97.2% |
| Bofors RP30 | <<locked>> | 80% | 53,548 psi | 82% | 2838 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 52,823 psi | 81% | 2815 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 29,472 psi | 45% | 1670 fps | 100% |
| Hodgdon US 869 | <<locked>> | 90% | 53,940 psi | 83% | 2841 fps | 95.2% |
| IMR 7977 Enduron | <<locked>> | 80% | 51,401 psi | 79% | 2720 fps | 96.3% |
| IMR 8133 Enduron | <<locked>> | 80% | 45,078 psi | 69% | 2700 fps | 99.7% |
| Lovex D100 | <<locked>> | 84% | 53,606 psi | 82% | 2789 fps | 95.7% |
| Norma 217 | <<locked>> | 80% | 46,702 psi | 72% | 2730 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 30,385 psi | 47% | 1709 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 53,258 psi | 82% | 2867 fps | 99.9% |
| Shooters World 50 BMG | <<locked>> | 84% | 53,606 psi | 82% | 2789 fps | 95.7% |
| SNPE Vectan SP 13 | <<locked>> | 80% | 39,653 psi | 61% | 2549 fps | 95% |
| Vihtavuori 20N29 | 78.7 gr | 88% | 45,223 psi | 70% | 2687 fps | 95% |
| Vihtavuori 24N41 | <<locked>> | 88% | 53,679 psi | 83% | 2838 fps | 95.1% |
| Vihtavuori N170 | <<locked>> | 80% | 52,895 psi | 81% | 2782 fps | 98% |
| Vihtavuori N568 | <<locked>> | 80% | 53,345 psi | 82% | 2864 fps | 99.8% |
| Vihtavuori N570 | <<locked>> | 80% | 51,561 psi | 79% | 2874 fps | 98.6% |
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 23 powders for .26 Nosler loaded with the .264 | 155gr | Lapua Mega. ADI AR 2218 delivers the highest muzzle velocity at 3,002 fps; across all powders the maximum-charge window runs from 1,867 fps to 3,002 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 23 of the 23 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 155.0 gr projectile in 0.264" calls for a 1:10.5 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, Accurate 8700, Vihtavuori 20N29 rank at the top here: for .26 Nosler with the .264 | 155gr | Lapua Mega 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.