Load Specifications
Load data in caliber 6.5 x 68 R with .264 | 140gr | Berger LRBT Target bullet and 95 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and ReloadSwiss RS 80.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 86% | 49,124 psi | 87% | 2808 fps | 100% |
| Accurate 3100 | <<locked>> | 86% | 49,966 psi | 88% | 2822 fps | 100% |
| Accurate High Country | <<locked>> | 84% | 50,560 psi | 89% | 2953 fps | 99.2% |
| Accurate High Country | <<locked>> | 82% | 47,892 psi | 85% | 2907 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 84% | 47,776 psi | 84% | 2894 fps | 97.8% |
| Accurate MAGPRO | <<locked>> | 84% | 48,370 psi | 86% | 2907 fps | 98% |
| ADI AR 2209 | <<locked>> | 84% | 50,430 psi | 89% | 2890 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 84% | 51,053 psi | 90% | 2904 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 86% | 48,704 psi | 86% | 2897 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 86% | 49,284 psi | 87% | 2910 fps | 99% |
| ADI AR 2217 | <<locked>> | 96% | 50,531 psi | 89% | 2930 fps | 99.4% |
| ADI AR 2217 | <<locked>> | 94% | 47,848 psi | 85% | 2884 fps | 99.1% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 50,328 psi | 89% | 3018 fps | 96.6% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 51,140 psi | 90% | 3038 fps | 97% |
| ADI AR 2225 | <<locked>> | 98% | 48,834 psi | 86% | 2953 fps | 100% |
| ADI AR 2225 | <<locked>> | 98% | 49,806 psi | 88% | 2972 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 50,952 psi | 90% | 2890 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 48,269 psi | 85% | 2844 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 84% | 50,430 psi | 89% | 2884 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 84% | 51,010 psi | 90% | 2897 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 86% | 49,255 psi | 87% | 2900 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 86% | 49,893 psi | 88% | 2910 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 88% | 50,821 psi | 90% | 2874 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 48,341 psi | 85% | 2835 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 50,401 psi | 89% | 2936 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 47,877 psi | 85% | 2897 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 50,662 psi | 90% | 2953 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 47,616 psi | 84% | 2900 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 48,544 psi | 86% | 2963 fps | 96.4% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 49,966 psi | 88% | 2861 fps | 96.8% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 50,575 psi | 89% | 2877 fps | 97% |
| Bofors RP15 | <<locked>> | 88% | 48,588 psi | 86% | 2884 fps | 99.5% |
| Bofors RP15 | <<locked>> | 88% | 49,429 psi | 87% | 2900 fps | 99.6% |
| Bofors RP30 | <<locked>> | 94% | 50,212 psi | 89% | 2943 fps | 99.4% |
| Bofors RP30 | <<locked>> | 94% | 50,981 psi | 90% | 2956 fps | 99.5% |
| Bofors RP5 | <<locked>> | 86% | 49,255 psi | 87% | 2900 fps | 99.6% |
| Bofors RP5 | <<locked>> | 86% | 49,893 psi | 88% | 2910 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 92% | 48,443 psi | 86% | 2894 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 92% | 48,936 psi | 87% | 2904 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 84% | 48,385 psi | 86% | 2835 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 84% | 48,965 psi | 87% | 2848 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 50,778 psi | 90% | 2877 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 84% | 48,037 psi | 85% | 2828 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 50,966 psi | 90% | 2808 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 49,371 psi | 87% | 3012 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 50,227 psi | 89% | 3028 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,478 psi | 66% | 1860 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,550 psi | 66% | 1867 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 49,211 psi | 87% | 2818 fps | 98.6% |
| IMR 4955 Enduron | <<locked>> | 84% | 49,748 psi | 88% | 2831 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 88% | 50,560 psi | 89% | 2940 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 88% | 51,184 psi | 90% | 2953 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 47,718 psi | 84% | 2923 fps | 99.1% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 48,776 psi | 86% | 2943 fps | 99.3% |
| Lovex S071 | <<locked>> | 92% | 50,821 psi | 90% | 2835 fps | 100% |
| Lovex S071 | <<locked>> | 90% | 48,327 psi | 85% | 2795 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 48,559 psi | 86% | 2949 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 49,414 psi | 87% | 2966 fps | 100% |
| Norma MRP | <<locked>> | 84% | 48,979 psi | 87% | 2913 fps | 100% |
| Norma MRP | <<locked>> | 84% | 49,603 psi | 88% | 2927 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 51,068 psi | 90% | 2959 fps | 99.5% |
| Ramshot Grand | <<locked>> | 86% | 48,095 psi | 85% | 2910 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 90% | 49,530 psi | 88% | 2890 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 90% | 50,343 psi | 89% | 2904 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,522 psi | 68% | 1909 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,595 psi | 68% | 1913 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 49,574 psi | 88% | 3002 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 50,372 psi | 89% | 3015 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 48,820 psi | 86% | 2956 fps | 98.3% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 49,835 psi | 88% | 2976 fps | 98.6% |
| Rottweil R 904 | <<locked>> | 82% | 48,298 psi | 85% | 2805 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 82% | 48,863 psi | 86% | 2818 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 84% | 49,908 psi | 88% | 2871 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 84% | 50,546 psi | 89% | 2884 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 49,530 psi | 88% | 2867 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 50,169 psi | 89% | 2881 fps | 99.7% |
| Somchem S361 | <<locked>> | 82% | 49,327 psi | 87% | 2795 fps | 98.4% |
| Somchem S361 | <<locked>> | 82% | 49,821 psi | 88% | 2808 fps | 98.6% |
| Somchem S385 | <<locked>> | 84% | 50,430 psi | 89% | 2844 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 50,995 psi | 90% | 2858 fps | 100% |
| Vihtavuori N165 | <<locked>> | 88% | 50,125 psi | 89% | 2831 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 88% | 50,676 psi | 90% | 2841 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 84% | 49,371 psi | 87% | 2844 fps | 100% |
| Vihtavuori N555 | <<locked>> | 84% | 50,053 psi | 88% | 2858 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 48,704 psi | 86% | 2910 fps | 98.5% |
| Vihtavuori N560 | <<locked>> | 84% | 49,284 psi | 87% | 2923 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 90% | 49,327 psi | 87% | 2904 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 90% | 49,850 psi | 88% | 2917 fps | 98.9% |
| Vihtavuori N568 | <<locked>> | 94% | 49,893 psi | 88% | 2963 fps | 98% |
| Vihtavuori N568 | <<locked>> | 94% | 50,676 psi | 90% | 2979 fps | 98.2% |
| Vihtavuori N570 | <<locked>> | 96% | 50,778 psi | 90% | 3018 fps | 96.5% |
| Winchester StaBALL HD | <<locked>> | 88% | 49,371 psi | 87% | 2953 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 88% | 50,154 psi | 89% | 2963 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 86% | 49,937 psi | 88% | 2838 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 86% | 50,488 psi | 89% | 2851 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 40,205 psi | 71% | 2644 fps | 99.6% |
| Accurate 3100 | <<locked>> | 80% | 40,828 psi | 72% | 2657 fps | 99.7% |
| Accurate High Country | <<locked>> | 80% | 43,888 psi | 78% | 2825 fps | 98.1% |
| Accurate High Country | <<locked>> | 80% | 44,541 psi | 79% | 2841 fps | 98.3% |
| Accurate MAGPRO | <<locked>> | 80% | 41,510 psi | 73% | 2766 fps | 96.2% |
| Accurate MAGPRO | <<locked>> | 80% | 42,076 psi | 74% | 2779 fps | 96.4% |
| ADI AR 2209 | <<locked>> | 80% | 44,179 psi | 78% | 2772 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 80% | 44,788 psi | 79% | 2785 fps | 99% |
| ADI AR 2213 | <<locked>> | 80% | 39,552 psi | 70% | 2707 fps | 96.7% |
| ADI AR 2213 | <<locked>> | 80% | 40,132 psi | 71% | 2723 fps | 97% |
| ADI AR 2217 | <<locked>> | 86% | 36,071 psi | 64% | 2625 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 84% | 34,127 psi | 60% | 2575 fps | 95.1% |
| ADI AR 2218 | <<locked>> | 98% | 46,934 psi | 83% | 2949 fps | 95.5% |
| ADI AR 2218 | <<locked>> | 98% | 47,500 psi | 84% | 2966 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 82% | 28,761 psi | 51% | 2467 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 82% | 29,196 psi | 52% | 2484 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 44,599 psi | 79% | 2772 fps | 98.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 45,179 psi | 80% | 2785 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,179 psi | 78% | 2766 fps | 98.9% |
| Alliant Reloder-19 | <<locked>> | 80% | 44,773 psi | 79% | 2779 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,147 psi | 71% | 2717 fps | 98.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 40,770 psi | 72% | 2730 fps | 98.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 38,899 psi | 69% | 2664 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,537 psi | 70% | 2677 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 33,591 psi | 59% | 2592 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,098 psi | 60% | 2605 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 43,497 psi | 77% | 2825 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,396 psi | 78% | 2844 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 45,078 psi | 80% | 2890 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 44,106 psi | 78% | 2743 fps | 95.1% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 44,498 psi | 79% | 2756 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 37,376 psi | 66% | 2651 fps | 97.2% |
| Bofors RP15 | <<locked>> | 80% | 37,956 psi | 67% | 2667 fps | 97.5% |
| Bofors RP30 | <<locked>> | 82% | 33,344 psi | 59% | 2579 fps | 95% |
| Bofors RP30 | <<locked>> | 82% | 33,924 psi | 60% | 2595 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 40,147 psi | 71% | 2717 fps | 98.1% |
| Bofors RP5 | <<locked>> | 80% | 40,770 psi | 72% | 2730 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 82% | 34,214 psi | 60% | 2579 fps | 95.8% |
| Hodgdon H1000 | <<locked>> | 82% | 34,693 psi | 61% | 2592 fps | 96.1% |
| Hodgdon H4831 | <<locked>> | 80% | 42,221 psi | 75% | 2713 fps | 96.9% |
| Hodgdon H4831 | <<locked>> | 80% | 42,801 psi | 76% | 2726 fps | 97.1% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,408 psi | 73% | 2694 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 41,959 psi | 74% | 2707 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,834 psi | 85% | 2759 fps | 100% |
| Hodgdon Retumbo | 55.9 gr | 80% | 32,808 psi | 58% | 2621 fps | 96.4% |
| Hodgdon Retumbo | 55.9 gr | 80% | 33,330 psi | 59% | 2638 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,166 psi | 50% | 1667 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,152 psi | 50% | 1670 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,439 psi | 77% | 2707 fps | 97.4% |
| IMR 4955 Enduron | <<locked>> | 80% | 43,976 psi | 78% | 2720 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 80% | 38,392 psi | 68% | 2690 fps | 96.4% |
| IMR 7828 SSC | <<locked>> | 80% | 38,769 psi | 69% | 2700 fps | 96.6% |
| IMR 8133 Enduron | <<locked>> | 90% | 34,069 psi | 60% | 2621 fps | 95.1% |
| IMR 8133 Enduron | <<locked>> | 90% | 34,722 psi | 61% | 2638 fps | 95.5% |
| Lovex S071 | <<locked>> | 80% | 34,679 psi | 61% | 2520 fps | 98.7% |
| Lovex S071 | <<locked>> | 80% | 35,244 psi | 62% | 2533 fps | 98.9% |
| Norma 217 | <<locked>> | 86% | 29,907 psi | 53% | 2523 fps | 95.7% |
| Norma 217 | <<locked>> | 86% | 30,400 psi | 54% | 2539 fps | 96% |
| Norma MRP | <<locked>> | 80% | 42,438 psi | 75% | 2789 fps | 99.5% |
| Norma MRP | <<locked>> | 80% | 43,062 psi | 76% | 2802 fps | 99.6% |
| Ramshot Grand | <<locked>> | 80% | 38,014 psi | 67% | 2697 fps | 96.8% |
| Ramshot Grand | <<locked>> | 80% | 38,609 psi | 68% | 2710 fps | 97% |
| Ramshot Magnum | <<locked>> | 80% | 34,171 psi | 60% | 2575 fps | 97.3% |
| Ramshot Magnum | <<locked>> | 80% | 34,693 psi | 61% | 2589 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,964 psi | 51% | 1706 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,935 psi | 51% | 1713 fps | 100% |
| ReloadSwiss RS 76 | 59.8 gr | 80% | 31,908 psi | 56% | 2595 fps | 97.3% |
| ReloadSwiss RS 76 | 59.8 gr | 80% | 32,358 psi | 57% | 2612 fps | 97.6% |
| ReloadSwiss RS 80 | 66.3 gr | 88% | 38,812 psi | 69% | 2749 fps | 95.5% |
| ReloadSwiss RS 80 | 66.3 gr | 88% | 39,523 psi | 70% | 2766 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 45,150 psi | 80% | 2746 fps | 98.2% |
| Rottweil R 904 | <<locked>> | 80% | 45,759 psi | 81% | 2759 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 80% | 43,729 psi | 77% | 2756 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 80% | 44,367 psi | 78% | 2769 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 43,395 psi | 77% | 2749 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 44,034 psi | 78% | 2766 fps | 99% |
| Somchem S361 | <<locked>> | 80% | 46,079 psi | 81% | 2736 fps | 97.8% |
| Somchem S361 | <<locked>> | 80% | 46,601 psi | 82% | 2749 fps | 98% |
| Somchem S385 | <<locked>> | 80% | 44,150 psi | 78% | 2730 fps | 99.4% |
| Somchem S385 | <<locked>> | 80% | 44,773 psi | 79% | 2746 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 80% | 38,479 psi | 68% | 2605 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 80% | 39,030 psi | 69% | 2621 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 43,308 psi | 77% | 2740 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 43,990 psi | 78% | 2753 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 42,293 psi | 75% | 2779 fps | 97.1% |
| Vihtavuori N560 | <<locked>> | 80% | 42,888 psi | 76% | 2795 fps | 97.3% |
| Vihtavuori N565 | <<locked>> | 82% | 37,449 psi | 66% | 2654 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 80% | 35,534 psi | 63% | 2608 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 88% | 40,306 psi | 71% | 2769 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 88% | 40,857 psi | 72% | 2782 fps | 95.7% |
| Vihtavuori N570 | <<locked>> | 94% | 47,108 psi | 83% | 2949 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,187 psi | 64% | 2713 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 36,956 psi | 65% | 2726 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 40,654 psi | 72% | 2661 fps | 98.2% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,191 psi | 73% | 2674 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 6.5 x 68 R loaded with the .264 | 140gr | Berger LRBT Target. ADI AR 2218 delivers the highest muzzle velocity at 3,038 fps; across all powders the maximum-charge window runs from 1,860 fps to 3,038 fps. ADI AR 2218 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 (390 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2218, Hodgdon TrailBoss 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. Hodgdon Retumbo, ReloadSwiss RS 76, ReloadSwiss RS 80 rank at the top here: for 6.5 x 68 R with the .264 | 140gr | Berger LRBT Target 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.