Load Specifications
Load data in caliber .260 Rem. with .264 | 122gr | SUS-TAC HP bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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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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 2015 | <<locked>> | 84% | 53,345 psi | 89% | 2713 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 51,634 psi | 86% | 2733 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 51,430 psi | 85% | 2779 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 52,069 psi | 87% | 2723 fps | 96% |
| Accurate 4064 | <<locked>> | 90% | 51,474 psi | 86% | 2776 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,273 psi | 90% | 2900 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 86% | 52,156 psi | 87% | 2802 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 92% | 53,403 psi | 89% | 2805 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 51,213 psi | 85% | 2756 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 51,982 psi | 86% | 2740 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 51,532 psi | 86% | 2913 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 53,069 psi | 88% | 2825 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 53,795 psi | 89% | 2848 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,417 psi | 87% | 2900 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,345 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,405 psi | 62% | 2635 fps | 97.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,437 psi | 69% | 2782 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 51,924 psi | 86% | 2815 fps | 99.2% |
| Bofors RP3 | <<locked>> | 92% | 53,592 psi | 89% | 2841 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 53,824 psi | 89% | 2805 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 53,229 psi | 88% | 2743 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,983 psi | 90% | 2838 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 52,040 psi | 86% | 2877 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 90% | 51,068 psi | 85% | 2795 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 98% | 53,925 psi | 90% | 2897 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 86% | 52,663 psi | 87% | 2812 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,544 psi | 81% | 2779 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 51,793 psi | 86% | 2844 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 50,792 psi | 84% | 2864 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,302 psi | 59% | 1722 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 54,085 psi | 90% | 2818 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 52,663 psi | 87% | 2802 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 52,678 psi | 88% | 2785 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 53,011 psi | 88% | 2766 fps | 97.1% |
| IMR 4350ᴾ | <<locked>> | 100% | 53,853 psi | 89% | 2828 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 94% | 52,402 psi | 87% | 2785 fps | 96.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,242 psi | 85% | 2835 fps | 99.2% |
| IMR 4895 | <<locked>> | 88% | 51,634 psi | 86% | 2825 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 84% | 51,213 psi | 85% | 2756 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 51,822 psi | 86% | 2785 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 52,054 psi | 86% | 2733 fps | 99.7% |
| Lovex S062 | <<locked>> | 90% | 52,504 psi | 87% | 2785 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 51,779 psi | 86% | 2782 fps | 98.1% |
| Lovex S070 | <<locked>> | 98% | 52,431 psi | 87% | 2812 fps | 97.3% |
| Norma 201 | <<locked>> | 86% | 51,097 psi | 85% | 2753 fps | 100% |
| Norma 202 | <<locked>> | 86% | 51,474 psi | 86% | 2756 fps | 100% |
| Norma 203B | <<locked>> | 90% | 52,953 psi | 88% | 2835 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 53,635 psi | 89% | 2890 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 90% | 53,098 psi | 88% | 2854 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,533 psi | 87% | 2884 fps | 98% |
| Ramshot TAC | <<locked>> | 84% | 51,517 psi | 86% | 2769 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 51,155 psi | 85% | 2792 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 52,257 psi | 87% | 2756 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,795 psi | 59% | 1765 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,230 psi | 90% | 2789 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 51,343 psi | 85% | 2776 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,679 psi | 89% | 2907 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 53,258 psi | 88% | 2943 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,896 psi | 90% | 2920 fps | 99.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,143 psi | 90% | 2949 fps | 99% |
| Rottweil R 901 | <<locked>> | 84% | 52,156 psi | 87% | 2736 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 51,547 psi | 86% | 2749 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 53,374 psi | 89% | 2831 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 53,824 psi | 89% | 2805 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 51,779 psi | 86% | 2782 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 51,822 psi | 86% | 2785 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 52,504 psi | 87% | 2785 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 52,431 psi | 87% | 2812 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 51,387 psi | 85% | 2835 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 53,519 psi | 89% | 2802 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,809 psi | 89% | 2825 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 52,808 psi | 88% | 2697 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 52,895 psi | 88% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 52,040 psi | 86% | 2733 fps | 96.8% |
| Somchem S321 | <<locked>> | 82% | 52,301 psi | 87% | 2789 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 52,040 psi | 86% | 2697 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 52,939 psi | 88% | 2795 fps | 99.7% |
| Somchem S355 | <<locked>> | 94% | 53,650 psi | 89% | 2828 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,892 psi | 80% | 2838 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 52,431 psi | 87% | 2661 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 52,997 psi | 88% | 2684 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,230 psi | 90% | 2762 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 52,054 psi | 86% | 2736 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 51,909 psi | 86% | 2762 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 52,794 psi | 88% | 2835 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 84% | 51,517 psi | 86% | 2753 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 53,447 psi | 89% | 2779 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 51,706 psi | 86% | 2838 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,553 psi | 67% | 2713 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 53,113 psi | 88% | 2815 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 51,532 psi | 86% | 2805 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 53,925 psi | 90% | 2897 fps | 97.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,475 psi | 56% | 2621 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,882 psi | 90% | 2835 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 2015 | <<locked>> | 80% | 47,065 psi | 78% | 2621 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,552 psi | 66% | 2543 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,976 psi | 75% | 2677 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 48,849 psi | 81% | 2671 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 37,362 psi | 62% | 2533 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 35,868 psi | 60% | 2562 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 43,265 psi | 72% | 2644 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 36,869 psi | 61% | 2497 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,310 psi | 75% | 2657 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 45,498 psi | 76% | 2648 fps | 100% |
| Alliant Power Pro 2000-MR | 37.2 gr | 80% | 39,247 psi | 65% | 2667 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,216 psi | 60% | 2516 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,015 psi | 65% | 2579 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,245 psi | 60% | 2575 fps | 95.8% |
| Alliant Reloder-17 | 36.6 gr | 80% | 31,285 psi | 52% | 2474 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,067 psi | 52% | 2470 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,769 psi | 64% | 2720 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,511 psi | 71% | 2651 fps | 97.7% |
| Bofors RP3 | <<locked>> | 80% | 35,897 psi | 60% | 2520 fps | 98% |
| Bofors RP7 | <<locked>> | 92% | 47,543 psi | 79% | 2700 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,239 psi | 78% | 2648 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,048 psi | 73% | 2677 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,675 psi | 81% | 2818 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 80% | 36,883 psi | 61% | 2523 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 92% | 44,135 psi | 73% | 2726 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 43,627 psi | 72% | 2657 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 31,183 psi | 52% | 2418 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,624 psi | 66% | 2628 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 94% | 47,558 psi | 79% | 2808 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,382 psi | 44% | 1542 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,930 psi | 70% | 2612 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 43,091 psi | 72% | 2654 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,696 psi | 64% | 2530 fps | 97.4% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,630 psi | 77% | 2654 fps | 95.6% |
| IMR 4350 | <<locked>> | 96% | 47,659 psi | 79% | 2723 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,470 psi | 77% | 2680 fps | 95.5% |
| IMR 4831 | <<locked>> | 88% | 34,621 psi | 58% | 2516 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 39,943 psi | 66% | 2612 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 45,310 psi | 75% | 2657 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 42,351 psi | 70% | 2628 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,584 psi | 72% | 2589 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 38,667 psi | 64% | 2539 fps | 98.9% |
| Lovex S065 | <<locked>> | 88% | 40,596 psi | 67% | 2579 fps | 95.6% |
| Lovex S070 | <<locked>> | 92% | 43,468 psi | 72% | 2654 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 42,250 psi | 70% | 2598 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 42,525 psi | 71% | 2608 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,377 psi | 64% | 2569 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 36,303 psi | 60% | 2566 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 37,927 psi | 63% | 2582 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 94% | 42,946 psi | 71% | 2710 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 45,092 psi | 75% | 2657 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,643 psi | 74% | 2680 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,037 psi | 81% | 2707 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,629 psi | 44% | 1575 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,836 psi | 84% | 2736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,366 psi | 70% | 2612 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,654 psi | 68% | 2677 fps | 97.8% |
| ReloadSwiss RS 60 | 36.6 gr | 80% | 33,301 psi | 55% | 2543 fps | 98.8% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,592 psi | 59% | 2575 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,450 psi | 64% | 2641 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 46,499 psi | 77% | 2648 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,524 psi | 67% | 2556 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 33,678 psi | 56% | 2461 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 47,543 psi | 79% | 2700 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,596 psi | 67% | 2579 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,351 psi | 70% | 2628 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,667 psi | 64% | 2539 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 92% | 43,468 psi | 72% | 2654 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,592 psi | 57% | 2510 fps | 96.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,308 psi | 72% | 2628 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,626 psi | 69% | 2612 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,787 psi | 73% | 2556 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,361 psi | 60% | 2425 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,440 psi | 75% | 2625 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 49,110 psi | 82% | 2736 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,294 psi | 72% | 2556 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,265 psi | 72% | 2631 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 34,534 psi | 57% | 2470 fps | 97.1% |
| Somchem S365 | <<locked>> | 82% | 26,789 psi | 45% | 2349 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 49,487 psi | 82% | 2618 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,048 psi | 73% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,682 psi | 66% | 2539 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,292 psi | 67% | 2546 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,837 psi | 55% | 2408 fps | 97.9% |
| Vihtavuori N160 | <<locked>> | 86% | 35,505 psi | 59% | 2513 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 45,411 psi | 75% | 2651 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 38,957 psi | 65% | 2536 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 37,246 psi | 62% | 2566 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 94% | 33,286 psi | 55% | 2549 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,270 psi | 52% | 2385 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 44,788 psi | 74% | 2694 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 44,135 psi | 73% | 2726 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,198 psi | 52% | 2546 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,133 psi | 68% | 2618 fps | 98.8% |
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 109 powders for .260 Rem. loaded with the .264 | 122gr | SUS-TAC HP. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,949 fps; across all powders the maximum-charge window runs from 1,722 fps to 2,949 fps. Accurate 3100 gives the best case fill at 100 %, and 109 of the 109 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 122.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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 Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .260 Rem. with the .264 | 122gr | SUS-TAC HP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 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.