Load Specifications
Load data in caliber 6.5-284 Norma with .264 | 126gr | Lehigh Defense Controlled Chaos bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and ReloadSwiss RS 70.
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 3100 | <<locked>> | 98% | 52,098 psi | 88% | 2887 fps | 99.5% |
| Accurate 4064 | <<locked>> | 82% | 53,359 psi | 90% | 2831 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 50,444 psi | 85% | 2881 fps | 99.9% |
| Accurate High Country | <<locked>> | 96% | 53,171 psi | 89% | 3028 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 84% | 53,214 psi | 89% | 2861 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 51,590 psi | 87% | 2923 fps | 97.6% |
| ADI AR 2213 | <<locked>> | 98% | 52,721 psi | 89% | 2972 fps | 96.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 51,474 psi | 87% | 2917 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 50,705 psi | 85% | 2831 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 51,285 psi | 86% | 2940 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 52,141 psi | 88% | 2959 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 50,807 psi | 85% | 2907 fps | 97.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 51,837 psi | 87% | 2972 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,402 psi | 88% | 2959 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,513 psi | 77% | 2887 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,359 psi | 88% | 3041 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,778 psi | 85% | 2949 fps | 97.6% |
| Bofors RP3 | <<locked>> | 82% | 51,503 psi | 87% | 2848 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 51,837 psi | 87% | 2972 fps | 97.9% |
| Bofors RP7 | <<locked>> | 86% | 50,937 psi | 86% | 2831 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 82% | 51,822 psi | 87% | 2864 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 52,591 psi | 88% | 2933 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 86% | 52,286 psi | 88% | 2890 fps | 98% |
| Hodgdon H4831 | <<locked>> | 96% | 52,779 psi | 89% | 2917 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 51,764 psi | 87% | 2867 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,512 psi | 75% | 2913 fps | 96.8% |
| Hodgdon Superformance | <<locked>> | 88% | 52,373 psi | 88% | 2963 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,434 psi | 61% | 1821 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 52,591 psi | 88% | 2841 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 51,808 psi | 87% | 2864 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 52,446 psi | 88% | 2858 fps | 98.9% |
| IMR 4831 | <<locked>> | 90% | 51,082 psi | 86% | 2877 fps | 100% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,621 psi | 90% | 3002 fps | 97% |
| Lovex S062 | <<locked>> | 82% | 52,881 psi | 89% | 2835 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 52,576 psi | 88% | 2858 fps | 99.6% |
| Lovex S070 | <<locked>> | 88% | 50,749 psi | 85% | 2844 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,354 psi | 78% | 2792 fps | 98.8% |
| Norma 203B | <<locked>> | 82% | 53,621 psi | 90% | 2894 fps | 100% |
| Norma 204 | <<locked>> | 90% | 52,286 psi | 88% | 2910 fps | 97.6% |
| Norma MRP | <<locked>> | 96% | 51,314 psi | 86% | 2995 fps | 98.9% |
| Norma URP | <<locked>> | 90% | 52,837 psi | 89% | 2923 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 50,502 psi | 85% | 2959 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 90% | 51,430 psi | 86% | 2917 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,515 psi | 82% | 2894 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,217 psi | 63% | 1867 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 51,590 psi | 87% | 2844 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 51,822 psi | 87% | 2956 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 50,140 psi | 84% | 2897 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 52,330 psi | 88% | 2986 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,469 psi | 75% | 2907 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 84% | 51,663 psi | 87% | 2848 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,113 psi | 89% | 2894 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 96% | 53,403 psi | 90% | 2953 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 86% | 50,937 psi | 86% | 2831 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 52,576 psi | 88% | 2858 fps | 99.6% |
| Shooters World Precision | <<locked>> | 82% | 52,881 psi | 89% | 2835 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 50,749 psi | 85% | 2844 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 52,982 psi | 89% | 2904 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 52,388 psi | 88% | 2733 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 52,156 psi | 88% | 2808 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 52,939 psi | 89% | 2946 fps | 98.1% |
| Somchem S355 | <<locked>> | 84% | 51,721 psi | 87% | 2841 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 51,938 psi | 87% | 2923 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 50,792 psi | 85% | 2874 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 86% | 52,837 psi | 89% | 2818 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 51,314 psi | 86% | 2861 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,592 psi | 90% | 2907 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 82% | 53,751 psi | 90% | 2822 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 50,618 psi | 85% | 2867 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 96% | 51,329 psi | 86% | 2930 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 51,590 psi | 87% | 2982 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 50,633 psi | 85% | 2828 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 52,591 psi | 88% | 2933 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,543 psi | 80% | 3022 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 50,705 psi | 85% | 2864 fps | 97.4% |
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 3100 | <<locked>> | 86% | 34,592 psi | 58% | 2546 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 50,067 psi | 84% | 2782 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,406 psi | 65% | 2651 fps | 98.5% |
| Accurate High Country | <<locked>> | 92% | 46,006 psi | 77% | 2894 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 47,181 psi | 79% | 2756 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 42,192 psi | 71% | 2740 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 96% | 49,110 psi | 83% | 2907 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 42,409 psi | 71% | 2743 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,572 psi | 80% | 2779 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,217 psi | 63% | 2657 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,177 psi | 71% | 2785 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,930 psi | 71% | 2736 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,337 psi | 71% | 2789 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,383 psi | 46% | 2408 fps | 96.3% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,953 psi | 55% | 2582 fps | 95.5% |
| Alliant Reloder-26 | 49 gr | 82% | 31,357 psi | 53% | 2582 fps | 95.7% |
| Bofors RP15 | <<locked>> | 94% | 41,756 psi | 70% | 2776 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 47,979 psi | 81% | 2792 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,337 psi | 71% | 2789 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 42,134 psi | 71% | 2661 fps | 96.4% |
| Hodgdon H380 | <<locked>> | 80% | 48,312 psi | 81% | 2805 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 40,190 psi | 68% | 2694 fps | 96.5% |
| Hodgdon H4350 | <<locked>> | 80% | 42,989 psi | 72% | 2713 fps | 95.9% |
| Hodgdon H4831 | <<locked>> | 94% | 49,153 psi | 83% | 2851 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,766 psi | 58% | 2549 fps | 99% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,756 psi | 70% | 2851 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 39,204 psi | 66% | 2703 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,325 psi | 46% | 1631 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,647 psi | 83% | 2792 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,826 psi | 64% | 2589 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,555 psi | 73% | 2694 fps | 97.3% |
| IMR 4831 | <<locked>> | 80% | 36,883 psi | 62% | 2602 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 96% | 47,007 psi | 79% | 2877 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 49,617 psi | 83% | 2785 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,176 psi | 69% | 2644 fps | 98% |
| Lovex S070 | <<locked>> | 80% | 39,450 psi | 66% | 2625 fps | 96.5% |
| Lovex S071 | <<locked>> | 90% | 33,547 psi | 56% | 2520 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 50,372 psi | 85% | 2841 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,743 psi | 72% | 2733 fps | 95.2% |
| Norma MRP | 51 gr | 88% | 38,682 psi | 65% | 2740 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 38,101 psi | 64% | 2644 fps | 98.3% |
| Ramshot Grand | <<locked>> | 96% | 46,876 psi | 79% | 2887 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 36,869 psi | 62% | 2628 fps | 96.4% |
| Ramshot Magnum | <<locked>> | 94% | 38,769 psi | 65% | 2694 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,862 psi | 47% | 1670 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,254 psi | 81% | 2785 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,817 psi | 75% | 2838 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,101 psi | 64% | 2667 fps | 98.1% |
| ReloadSwiss RS 70 | 47.4 gr | 80% | 36,970 psi | 62% | 2671 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,580 psi | 65% | 2766 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 45,368 psi | 76% | 2740 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,702 psi | 79% | 2779 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 40,988 psi | 69% | 2717 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 42,134 psi | 71% | 2661 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,176 psi | 69% | 2644 fps | 98% |
| Shooters World Precision | <<locked>> | 80% | 49,617 psi | 83% | 2785 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,450 psi | 66% | 2625 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,383 psi | 78% | 2792 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,311 psi | 78% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,393 psi | 68% | 2589 fps | 96.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,611 psi | 68% | 2713 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 45,556 psi | 77% | 2736 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 34,476 psi | 58% | 2598 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 39,030 psi | 66% | 2644 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 43,540 psi | 73% | 2667 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,552 psi | 67% | 2644 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 41,002 psi | 69% | 2677 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 50,256 psi | 85% | 2769 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,841 psi | 65% | 2641 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 80% | 30,240 psi | 51% | 2487 fps | 96.4% |
| Vihtavuori N560 | <<locked>> | 94% | 48,066 psi | 81% | 2913 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,450 psi | 65% | 2608 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 40,422 psi | 68% | 2700 fps | 96.6% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,860 psi | 43% | 2441 fps | 96.2% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,034 psi | 74% | 2743 fps | 95.8% |
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 75 powders for 6.5-284 Norma loaded with the .264 | 126gr | Lehigh Defense Controlled Chaos. Alliant Reloder-26 delivers the highest muzzle velocity at 3,041 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,041 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (410 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 126.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 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. Alliant Reloder-26, Norma MRP, ReloadSwiss RS 70 rank at the top here: for 6.5-284 Norma with the .264 | 126gr | Lehigh Defense Controlled Chaos 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.