Load Specifications
Load data in caliber .260 Rem. with .264 | 120gr | SUS-TAC HPT bullet and 95 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Alliant Power Pro 2000-MR.
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% | 51,982 psi | 86% | 2710 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 53,708 psi | 89% | 2782 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 53,330 psi | 89% | 2776 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 51,721 psi | 86% | 2789 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 53,055 psi | 88% | 2762 fps | 95.8% |
| Accurate 4064 | <<locked>> | 92% | 53,040 psi | 88% | 2818 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 52,315 psi | 87% | 2887 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 88% | 54,331 psi | 90% | 2854 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 51,779 psi | 86% | 2795 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 86% | 53,287 psi | 89% | 2802 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 53,708 psi | 89% | 2782 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 53,751 psi | 89% | 2966 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 51,735 psi | 86% | 2822 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 90% | 52,054 psi | 86% | 2838 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,865 psi | 85% | 2890 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 51,721 psi | 86% | 2930 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,201 psi | 60% | 2618 fps | 97.2% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,114 psi | 90% | 2867 fps | 99.3% |
| Bofors RP3 | <<locked>> | 92% | 51,779 psi | 86% | 2831 fps | 99.9% |
| Bofors RP7 | <<locked>> | 96% | 52,634 psi | 87% | 2799 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 52,011 psi | 86% | 2740 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 52,257 psi | 87% | 2831 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,157 psi | 90% | 2927 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 82% | 54,114 psi | 90% | 2802 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 53,258 psi | 88% | 2844 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 98% | 52,214 psi | 87% | 2884 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 86% | 51,358 psi | 85% | 2808 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,949 psi | 78% | 2769 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 53,911 psi | 90% | 2894 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 53,229 psi | 88% | 2920 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,157 psi | 58% | 1729 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 52,837 psi | 88% | 2815 fps | 99.8% |
| IMR 3031 | <<locked>> | 88% | 54,433 psi | 90% | 2848 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 51,430 psi | 85% | 2779 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 88% | 51,880 psi | 86% | 2759 fps | 96.5% |
| IMR 4350ᴾ | <<locked>> | 100% | 52,359 psi | 87% | 2818 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,317 psi | 90% | 2828 fps | 96.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,937 psi | 83% | 2831 fps | 98.8% |
| IMR 4895 | <<locked>> | 90% | 53,359 psi | 89% | 2871 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 53,287 psi | 89% | 2802 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 53,548 psi | 89% | 2792 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 53,534 psi | 89% | 2828 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,259 psi | 90% | 2782 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 54,244 psi | 90% | 2828 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 53,606 psi | 89% | 2825 fps | 98.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 54,317 psi | 90% | 2854 fps | 97.3% |
| Norma 201 | <<locked>> | 88% | 53,200 psi | 88% | 2802 fps | 100% |
| Norma 202 | <<locked>> | 88% | 53,621 psi | 89% | 2805 fps | 100% |
| Norma 203B | <<locked>> | 90% | 51,271 psi | 85% | 2825 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 51,938 psi | 86% | 2881 fps | 99% |
| Ramshot Big Game | <<locked>> | 90% | 51,779 psi | 86% | 2851 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,633 psi | 84% | 2867 fps | 97.3% |
| Ramshot TAC | <<locked>> | 86% | 53,635 psi | 89% | 2818 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 53,258 psi | 88% | 2841 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,375 psi | 90% | 2805 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,636 psi | 59% | 1768 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 52,924 psi | 88% | 2789 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 53,563 psi | 89% | 2825 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 52,156 psi | 87% | 2900 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 51,561 psi | 86% | 2933 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,083 psi | 87% | 2910 fps | 98.9% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,663 psi | 87% | 2936 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 86% | 54,230 psi | 90% | 2785 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 53,650 psi | 89% | 2799 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 51,648 psi | 86% | 2822 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 96% | 52,634 psi | 87% | 2799 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 98% | 53,606 psi | 89% | 2825 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 53,534 psi | 89% | 2828 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 54,244 psi | 90% | 2828 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,317 psi | 90% | 2854 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 53,505 psi | 89% | 2887 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 51,866 psi | 86% | 2792 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 52,576 psi | 87% | 2818 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 51,547 psi | 86% | 2697 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 51,271 psi | 85% | 2694 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,070 psi | 90% | 2776 fps | 96.9% |
| Somchem S321 | <<locked>> | 82% | 51,068 psi | 85% | 2785 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,186 psi | 90% | 2743 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 51,314 psi | 85% | 2785 fps | 99.5% |
| Somchem S355 | <<locked>> | 94% | 52,301 psi | 87% | 2825 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,296 psi | 77% | 2828 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 51,488 psi | 86% | 2664 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 51,706 psi | 86% | 2684 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 52,779 psi | 88% | 2762 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 53,867 psi | 89% | 2779 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 53,795 psi | 89% | 2805 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,273 psi | 90% | 2874 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 86% | 53,737 psi | 89% | 2802 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 52,199 psi | 87% | 2779 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 53,592 psi | 89% | 2884 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,972 psi | 65% | 2697 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 51,677 psi | 86% | 2808 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 53,258 psi | 88% | 2848 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 52,214 psi | 87% | 2884 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 52,199 psi | 87% | 2825 fps | 99.8% |
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% | 45,716 psi | 76% | 2618 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,270 psi | 84% | 2733 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,522 psi | 64% | 2539 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,150 psi | 75% | 2687 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 49,690 psi | 83% | 2707 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 36,405 psi | 60% | 2530 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 36,985 psi | 61% | 2605 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 42,076 psi | 70% | 2638 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 35,839 psi | 60% | 2487 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,092 psi | 73% | 2648 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 44,019 psi | 73% | 2644 fps | 100% |
| Alliant Power Pro 2000-MR | 36.7 gr | 80% | 38,189 psi | 63% | 2657 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,375 psi | 59% | 2513 fps | 97.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,898 psi | 63% | 2569 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 35,288 psi | 59% | 2562 fps | 95% |
| Alliant Reloder-17 | 37 gr | 82% | 32,460 psi | 54% | 2520 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,010 psi | 53% | 2507 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,379 psi | 69% | 2641 fps | 97.2% |
| Bofors RP3 | <<locked>> | 80% | 34,766 psi | 58% | 2510 fps | 97.5% |
| Bofors RP7 | <<locked>> | 94% | 49,226 psi | 82% | 2743 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,035 psi | 76% | 2644 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,830 psi | 71% | 2671 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,891 psi | 78% | 2805 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 80% | 50,546 psi | 84% | 2749 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 38,305 psi | 64% | 2569 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 94% | 45,614 psi | 76% | 2769 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 42,409 psi | 70% | 2651 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,140 psi | 53% | 2457 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,493 psi | 64% | 2618 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 96% | 49,385 psi | 82% | 2851 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,150 psi | 43% | 1542 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,785 psi | 68% | 2602 fps | 98.4% |
| IMR 3031 | <<locked>> | 80% | 42,032 psi | 70% | 2654 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,594 psi | 62% | 2520 fps | 96.8% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,542 psi | 76% | 2648 fps | 95% |
| IMR 4350 | <<locked>> | 98% | 49,371 psi | 82% | 2769 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 48,051 psi | 80% | 2723 fps | 95.5% |
| IMR 4831 | <<locked>> | 90% | 35,940 psi | 60% | 2562 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 38,783 psi | 64% | 2602 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 80% | 44,092 psi | 73% | 2648 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 49,777 psi | 83% | 2733 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,060 psi | 68% | 2621 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 42,482 psi | 71% | 2582 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 37,521 psi | 62% | 2530 fps | 98.4% |
| Lovex S065 | <<locked>> | 90% | 41,930 psi | 70% | 2618 fps | 95.6% |
| Lovex S070 | <<locked>> | 94% | 44,904 psi | 75% | 2694 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 41,408 psi | 69% | 2598 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 41,626 psi | 69% | 2608 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,260 psi | 62% | 2559 fps | 97.2% |
| Norma URP | <<locked>> | 90% | 37,449 psi | 62% | 2605 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 36,840 psi | 61% | 2572 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 94% | 41,901 psi | 70% | 2700 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 44,019 psi | 73% | 2648 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,468 psi | 72% | 2674 fps | 98.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,892 psi | 80% | 2700 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,382 psi | 44% | 1578 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,574 psi | 82% | 2736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 44,077 psi | 73% | 2661 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,639 psi | 66% | 2671 fps | 97.3% |
| ReloadSwiss RS 60 | 36.1 gr | 80% | 32,387 psi | 54% | 2530 fps | 98.3% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,941 psi | 61% | 2621 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 40,074 psi | 67% | 2690 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 45,208 psi | 75% | 2641 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,363 psi | 65% | 2549 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 32,822 psi | 55% | 2457 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 94% | 49,226 psi | 82% | 2743 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,930 psi | 70% | 2618 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,060 psi | 68% | 2621 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 37,521 psi | 62% | 2530 fps | 98.4% |
| Shooters World SW4350 | <<locked>> | 94% | 44,904 psi | 75% | 2694 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,808 psi | 56% | 2507 fps | 95.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,163 psi | 70% | 2621 fps | 96.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,814 psi | 68% | 2612 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,960 psi | 71% | 2559 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,563 psi | 59% | 2425 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 47,442 psi | 79% | 2671 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 47,819 psi | 79% | 2733 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 42,409 psi | 70% | 2559 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,119 psi | 70% | 2625 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 33,721 psi | 56% | 2464 fps | 96.6% |
| Somchem S365 | <<locked>> | 84% | 27,760 psi | 46% | 2392 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 48,544 psi | 81% | 2621 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,192 psi | 72% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,696 psi | 64% | 2539 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,392 psi | 65% | 2543 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,082 psi | 53% | 2405 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 36,869 psi | 61% | 2556 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 44,208 psi | 73% | 2648 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 37,869 psi | 63% | 2530 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 36,158 psi | 60% | 2556 fps | 95% |
| Vihtavuori N555 | <<locked>> | 96% | 34,214 psi | 57% | 2585 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,516 psi | 51% | 2375 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 43,482 psi | 72% | 2687 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 45,992 psi | 76% | 2776 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,001 psi | 66% | 2608 fps | 98.4% |
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 95 powders for .260 Rem. loaded with the .264 | 120gr | SUS-TAC HPT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,966 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,966 fps. Accurate 4350 gives the best case fill at 100 %, and 95 of the 95 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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-17, ReloadSwiss RS 60, Alliant Power Pro 2000-MR rank at the top here: for .260 Rem. with the .264 | 120gr | SUS-TAC HPT 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.