Load Specifications
Load data in caliber 6.5 x 64 (Reb) with .264 | 135gr | Peregrine Glider GRM bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Alliant Reloder-26 and Accurate High Country.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 56,130 psi | 90% | 2792 fps | 99.4% |
| Accurate 3100 | <<locked>> | 98% | 54,984 psi | 88% | 2841 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 55,506 psi | 89% | 2766 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 52,953 psi | 85% | 2828 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 52,605 psi | 84% | 2927 fps | 97.8% |
| Accurate MAGPRO | <<locked>> | 96% | 53,679 psi | 86% | 2930 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 55,535 psi | 89% | 2805 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,157 psi | 87% | 2881 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 98% | 55,666 psi | 89% | 2940 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,985 psi | 61% | 2648 fps | 96.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 54,346 psi | 87% | 2877 fps | 98.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 54,346 psi | 87% | 2877 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,434 psi | 90% | 2825 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,114 psi | 87% | 2887 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,492 psi | 89% | 2910 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,650 psi | 86% | 2867 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,013 psi | 88% | 2933 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 55,782 psi | 89% | 2910 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,109 psi | 77% | 2848 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 56,144 psi | 90% | 2999 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,824 psi | 86% | 2913 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 53,795 psi | 86% | 2792 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 43,888 psi | 70% | 2769 fps | 96.1% |
| Bofors RP5 | <<locked>> | 98% | 55,013 psi | 88% | 2933 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 53,055 psi | 85% | 2782 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,703 psi | 76% | 2795 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 82% | 54,099 psi | 87% | 2812 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,216 psi | 89% | 2884 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 54,737 psi | 88% | 2841 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 55,724 psi | 89% | 2877 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,389 psi | 87% | 2858 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,505 psi | 87% | 2812 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,065 psi | 75% | 2894 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 88% | 55,593 psi | 89% | 2923 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,593 psi | 59% | 1765 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,926 psi | 88% | 2785 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,433 psi | 87% | 2822 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,679 psi | 88% | 2808 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 53,548 psi | 86% | 2822 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,447 psi | 86% | 2808 fps | 97.2% |
| IMR 7828 SSC | <<locked>> | 98% | 53,040 psi | 85% | 2910 fps | 97.7% |
| Lovex S062 | <<locked>> | 82% | 55,114 psi | 88% | 2776 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,056 psi | 88% | 2808 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 56,333 psi | 90% | 2848 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,646 psi | 78% | 2746 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 56,014 psi | 90% | 2835 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,172 psi | 88% | 2871 fps | 98.7% |
| Norma MRP | <<locked>> | 96% | 54,607 psi | 88% | 2956 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 55,492 psi | 89% | 2871 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,563 psi | 86% | 2930 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 54,317 psi | 87% | 2874 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,416 psi | 82% | 2861 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,376 psi | 60% | 1811 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,795 psi | 86% | 2795 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,882 psi | 88% | 2897 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,113 psi | 85% | 2854 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,477 psi | 89% | 2940 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,253 psi | 76% | 2890 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 84% | 53,998 psi | 87% | 2789 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,869 psi | 90% | 2854 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 94% | 52,924 psi | 85% | 2854 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 86% | 53,055 psi | 85% | 2782 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,056 psi | 88% | 2808 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 55,114 psi | 88% | 2776 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,333 psi | 90% | 2848 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,535 psi | 89% | 2844 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,621 psi | 88% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,215 psi | 87% | 2756 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,072 psi | 90% | 2907 fps | 99.1% |
| Somchem S355 | <<locked>> | 84% | 53,954 psi | 87% | 2785 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,853 psi | 86% | 2792 fps | 97% |
| Somchem S365 | <<locked>> | 92% | 55,288 psi | 89% | 2871 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 53,490 psi | 86% | 2831 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 55,172 psi | 88% | 2759 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,809 psi | 86% | 2808 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,026 psi | 85% | 2812 fps | 99% |
| Vihtavuori N540 | <<locked>> | 82% | 55,999 psi | 90% | 2756 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 52,968 psi | 85% | 2815 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 54,433 psi | 87% | 2881 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,752 psi | 88% | 2946 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,082 psi | 80% | 2851 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,432 psi | 86% | 2776 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,535 psi | 89% | 2887 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,938 psi | 83% | 2979 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,592 psi | 86% | 2828 fps | 98.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 80% | 52,431 psi | 84% | 2736 fps | 99% |
| Accurate 3100 | <<locked>> | 82% | 31,575 psi | 51% | 2395 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 51,764 psi | 83% | 2713 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,074 psi | 64% | 2602 fps | 99.3% |
| Accurate High Country | 51.8 gr | 88% | 42,569 psi | 68% | 2740 fps | 95.2% |
| Accurate MAGPRO | 56.4 gr | 94% | 49,937 psi | 80% | 2864 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 48,979 psi | 79% | 2700 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 38,769 psi | 62% | 2589 fps | 95% |
| ADI AR 2213 | <<locked>> | 92% | 45,397 psi | 73% | 2756 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 98% | 35,650 psi | 57% | 2589 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 39,088 psi | 63% | 2589 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 39,088 psi | 63% | 2589 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,748 psi | 80% | 2723 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,102 psi | 63% | 2618 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,556 psi | 71% | 2736 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 38,696 psi | 62% | 2585 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,073 psi | 63% | 2635 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,413 psi | 46% | 2365 fps | 97.7% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,284 psi | 49% | 2434 fps | 95.2% |
| Alliant Reloder-26 | 48.5 gr | 80% | 30,603 psi | 49% | 2484 fps | 96.3% |
| Bofors RP15 | <<locked>> | 90% | 38,551 psi | 62% | 2621 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 50,125 psi | 80% | 2733 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,046 psi | 66% | 2707 fps | 95.2% |
| Bofors RP5 | <<locked>> | 88% | 39,073 psi | 63% | 2635 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 43,859 psi | 70% | 2618 fps | 97.7% |
| Hodgdon H1000 | <<locked>> | 96% | 41,466 psi | 66% | 2667 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 50,459 psi | 81% | 2753 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,206 psi | 68% | 2654 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 80% | 45,034 psi | 72% | 2674 fps | 97.3% |
| Hodgdon H4831 | <<locked>> | 90% | 45,440 psi | 73% | 2703 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 92% | 47,688 psi | 76% | 2743 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,608 psi | 59% | 2507 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 38,522 psi | 62% | 2697 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 41,133 psi | 66% | 2667 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,325 psi | 44% | 1578 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,547 psi | 83% | 2733 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,552 psi | 63% | 2549 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,411 psi | 73% | 2648 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 38,435 psi | 62% | 2552 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,166 psi | 76% | 2700 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 92% | 43,250 psi | 69% | 2723 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 51,750 psi | 83% | 2726 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,641 psi | 68% | 2592 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 40,886 psi | 66% | 2575 fps | 97.6% |
| Lovex S071 | <<locked>> | 86% | 30,806 psi | 49% | 2375 fps | 95% |
| Norma 203B | <<locked>> | 80% | 52,315 psi | 84% | 2779 fps | 100% |
| Norma 204 | <<locked>> | 80% | 39,117 psi | 63% | 2572 fps | 95% |
| Norma MRP | <<locked>> | 84% | 35,462 psi | 57% | 2579 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 39,769 psi | 64% | 2595 fps | 99.2% |
| Ramshot Grand | <<locked>> | 92% | 43,047 psi | 69% | 2733 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 38,711 psi | 62% | 2585 fps | 97.7% |
| Ramshot Magnum | <<locked>> | 92% | 38,232 psi | 61% | 2608 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,862 psi | 45% | 1614 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,314 psi | 81% | 2736 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,355 psi | 76% | 2782 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,103 psi | 64% | 2625 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,769 psi | 62% | 2635 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 35,230 psi | 56% | 2608 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 47,123 psi | 76% | 2680 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,004 psi | 69% | 2628 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 40,335 psi | 65% | 2621 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 43,859 psi | 70% | 2618 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,641 psi | 68% | 2592 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 51,750 psi | 83% | 2726 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,886 psi | 66% | 2575 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,660 psi | 78% | 2740 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,298 psi | 77% | 2582 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,742 psi | 67% | 2539 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,972 psi | 64% | 2615 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 47,253 psi | 76% | 2680 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,050 psi | 75% | 2677 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 36,477 psi | 58% | 2556 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,897 psi | 58% | 2493 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 45,208 psi | 72% | 2608 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,249 psi | 66% | 2595 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 37,724 psi | 60% | 2530 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 52,344 psi | 84% | 2707 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,654 psi | 65% | 2595 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 31,633 psi | 51% | 2441 fps | 97.7% |
| Vihtavuori N560 | <<locked>> | 90% | 44,454 psi | 71% | 2759 fps | 95% |
| Vihtavuori N565 | <<locked>> | 96% | 43,598 psi | 70% | 2730 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,451 psi | 65% | 2566 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,438 psi | 68% | 2657 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,063 psi | 40% | 2346 fps | 96.8% |
| Winchester Supreme 780 | <<locked>> | 88% | 40,437 psi | 65% | 2592 fps | 95.7% |
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 85 powders for 6.5 x 64 (Reb) loaded with the .264 | 135gr | Peregrine Glider GRM. Alliant Reloder-26 delivers the highest muzzle velocity at 2,999 fps; across all powders the maximum-charge window runs from 1,765 fps to 2,999 fps. ADI AR 2225 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 135.0 gr projectile in 0.264" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-23, Alliant Reloder-25 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. Accurate MAGPRO, Alliant Reloder-26, Accurate High Country rank at the top here: for 6.5 x 64 (Reb) with the .264 | 135gr | Peregrine Glider GRM 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.