Load Specifications
Bullet:.264 | 130gr | Merlin Virtus
Bullet Manufacturer:Virtus
Bullet Weight:130 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Caliber:6.5 x 64 (Reb) load data
Case Length (l3):2.518"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:71.5 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:8.0
Load data in caliber 6.5 x 64 (Reb) with .264 | 130gr | Merlin Virtus bullet and 84 powders. The key underlying parameters are shown in the table above.
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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 55,724 psi | 89% | 2838 fps | 99.2% |
| Accurate 3100 | <<locked>> | 98% | 54,360 psi | 87% | 2884 fps | 99.8% |
| Accurate 4064 | <<locked>> | 82% | 54,926 psi | 88% | 2812 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 56,289 psi | 90% | 2933 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 56,072 psi | 90% | 3038 fps | 98.1% |
| Accurate MAGPRO | <<locked>> | 96% | 53,214 psi | 85% | 2972 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 84% | 54,984 psi | 88% | 2851 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,722 psi | 86% | 2923 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 98% | 55,027 psi | 88% | 2979 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,710 psi | 60% | 2684 fps | 96.3% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 53,911 psi | 86% | 2923 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,101 psi | 90% | 2874 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,101 psi | 90% | 2897 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,867 psi | 86% | 2940 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,766 psi | 88% | 2953 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,214 psi | 85% | 2913 fps | 98.4% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,317 psi | 87% | 2972 fps | 98.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 55,143 psi | 88% | 2953 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,776 psi | 77% | 2894 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 55,521 psi | 89% | 3041 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,505 psi | 86% | 2959 fps | 98.5% |
| Bofors RP3 | <<locked>> | 82% | 53,127 psi | 85% | 2835 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 54,317 psi | 87% | 2972 fps | 98.7% |
| Bofors RP7 | <<locked>> | 88% | 56,057 psi | 90% | 2881 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,065 psi | 75% | 2828 fps | 96.7% |
| Hodgdon H380 | <<locked>> | 82% | 53,417 psi | 86% | 2851 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,911 psi | 88% | 2933 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 54,520 psi | 87% | 2890 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 96% | 55,158 psi | 88% | 2923 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,201 psi | 87% | 2907 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,867 psi | 86% | 2858 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,688 psi | 75% | 2933 fps | 98.1% |
| Hodgdon Superformance | <<locked>> | 88% | 55,288 psi | 89% | 2969 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,564 psi | 59% | 1808 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,418 psi | 87% | 2831 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,882 psi | 86% | 2864 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,317 psi | 87% | 2854 fps | 99.4% |
| IMR 4831 | <<locked>> | 90% | 53,272 psi | 85% | 2871 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,055 psi | 85% | 2851 fps | 96.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 56,318 psi | 90% | 3012 fps | 98% |
| Lovex S062 | <<locked>> | 82% | 54,578 psi | 88% | 2825 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,621 psi | 88% | 2854 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 56,072 psi | 90% | 2897 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,457 psi | 78% | 2792 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 55,405 psi | 89% | 2881 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,723 psi | 88% | 2917 fps | 98.4% |
| Norma MRP | <<locked>> | 96% | 54,186 psi | 87% | 3002 fps | 99.5% |
| Norma URP | <<locked>> | 90% | 55,201 psi | 89% | 2917 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,127 psi | 85% | 2972 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 90% | 53,882 psi | 86% | 2920 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,155 psi | 82% | 2907 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,318 psi | 60% | 1850 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,403 psi | 86% | 2838 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,259 psi | 87% | 2943 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 52,678 psi | 84% | 2900 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,882 psi | 88% | 2986 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,920 psi | 75% | 2930 fps | 99% |
| Rottweil R 903 | <<locked>> | 84% | 53,301 psi | 85% | 2835 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,506 psi | 89% | 2900 fps | 97.8% |
| Rottweil R 905 | <<locked>> | 96% | 56,304 psi | 90% | 2959 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 88% | 56,057 psi | 90% | 2881 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,621 psi | 88% | 2854 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 54,578 psi | 88% | 2825 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,072 psi | 90% | 2897 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,042 psi | 88% | 2894 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,157 psi | 87% | 2720 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,056 psi | 87% | 2805 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,840 psi | 90% | 2956 fps | 98.9% |
| Somchem S355 | <<locked>> | 84% | 53,345 psi | 86% | 2828 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,287 psi | 85% | 2831 fps | 96.6% |
| Somchem S365 | <<locked>> | 92% | 54,882 psi | 88% | 2920 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 53,026 psi | 85% | 2874 fps | 99% |
| Vihtavuori N150 | <<locked>> | 86% | 54,766 psi | 88% | 2805 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,592 psi | 86% | 2858 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 56,246 psi | 90% | 2910 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 82% | 55,332 psi | 89% | 2802 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 56,014 psi | 90% | 2913 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,911 psi | 86% | 2927 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,331 psi | 87% | 2992 fps | 97.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,603 psi | 80% | 2894 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,968 psi | 85% | 2822 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,911 psi | 88% | 2933 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,576 psi | 83% | 3028 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,968 psi | 85% | 2867 fps | 98.3% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 80% | 52,141 psi | 84% | 2782 fps | 98.7% |
| Accurate 3100 | <<locked>> | 84% | 33,489 psi | 54% | 2484 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 51,561 psi | 83% | 2766 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,813 psi | 64% | 2644 fps | 99% |
| Accurate High Country | <<locked>> | 90% | 45,310 psi | 73% | 2841 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 94% | 49,255 psi | 79% | 2904 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 48,617 psi | 78% | 2749 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 41,046 psi | 66% | 2684 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 92% | 44,773 psi | 72% | 2789 fps | 95% |
| ADI AR 2225 | <<locked>> | 98% | 35,230 psi | 56% | 2615 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 41,350 psi | 66% | 2687 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,298 psi | 79% | 2769 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,750 psi | 85% | 2844 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,696 psi | 62% | 2657 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,164 psi | 71% | 2779 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 40,886 psi | 66% | 2677 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 90% | 41,408 psi | 66% | 2733 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,253 psi | 45% | 2405 fps | 97.2% |
| Alliant Reloder-25 | <<locked>> | 88% | 32,111 psi | 51% | 2530 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 30,255 psi | 49% | 2513 fps | 95.7% |
| Bofors RP15 | <<locked>> | 92% | 40,843 psi | 65% | 2717 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 49,850 psi | 80% | 2782 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 41,408 psi | 66% | 2733 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 43,482 psi | 70% | 2657 fps | 97.3% |
| Hodgdon H1000 | <<locked>> | 98% | 44,092 psi | 71% | 2769 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 50,169 psi | 80% | 2799 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 41,901 psi | 67% | 2694 fps | 97.4% |
| Hodgdon H4350 | <<locked>> | 80% | 44,802 psi | 72% | 2717 fps | 96.9% |
| Hodgdon H4831 | <<locked>> | 92% | 48,167 psi | 77% | 2802 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 47,007 psi | 75% | 2779 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,230 psi | 58% | 2546 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 96% | 40,886 psi | 66% | 2802 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 80% | 40,886 psi | 66% | 2710 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 44% | 1614 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,111 psi | 82% | 2779 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,146 psi | 63% | 2585 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,005 psi | 72% | 2690 fps | 98% |
| IMR 4831 | <<locked>> | 80% | 38,203 psi | 61% | 2595 fps | 98.8% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,702 psi | 75% | 2740 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 94% | 46,035 psi | 74% | 2828 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 51,300 psi | 82% | 2776 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,482 psi | 68% | 2638 fps | 98.6% |
| Lovex S070 | <<locked>> | 80% | 40,727 psi | 65% | 2621 fps | 97.3% |
| Lovex S071 | <<locked>> | 88% | 32,489 psi | 52% | 2461 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 52,083 psi | 84% | 2828 fps | 100% |
| Norma 204 | <<locked>> | 82% | 41,640 psi | 67% | 2674 fps | 95.5% |
| Norma MRP | <<locked>> | 84% | 35,244 psi | 57% | 2618 fps | 95% |
| Norma URP | <<locked>> | 80% | 39,566 psi | 63% | 2638 fps | 98.9% |
| Ramshot Grand | <<locked>> | 94% | 45,832 psi | 73% | 2838 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 38,435 psi | 62% | 2625 fps | 97.3% |
| Ramshot Magnum | <<locked>> | 92% | 37,768 psi | 61% | 2641 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,760 psi | 45% | 1650 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,980 psi | 80% | 2782 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,963 psi | 75% | 2831 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,755 psi | 64% | 2664 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,421 psi | 62% | 2674 fps | 98.4% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 37,521 psi | 60% | 2710 fps | 96% |
| Rottweil R 903 | <<locked>> | 80% | 46,905 psi | 75% | 2730 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 45,687 psi | 73% | 2730 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 86% | 39,958 psi | 64% | 2657 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 43,482 psi | 70% | 2657 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,482 psi | 68% | 2638 fps | 98.6% |
| Shooters World Precision | <<locked>> | 80% | 51,300 psi | 82% | 2776 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,727 psi | 65% | 2621 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,327 psi | 77% | 2789 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,993 psi | 77% | 2631 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,553 psi | 67% | 2582 fps | 97.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,595 psi | 63% | 2654 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 47,094 psi | 76% | 2726 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,688 psi | 75% | 2717 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 36,027 psi | 58% | 2592 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 37,971 psi | 61% | 2589 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 45,049 psi | 72% | 2657 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,031 psi | 66% | 2638 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 88% | 37,536 psi | 60% | 2569 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 52,083 psi | 84% | 2756 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,393 psi | 65% | 2638 fps | 98.9% |
| Vihtavuori N555 | <<locked>> | 80% | 31,415 psi | 50% | 2480 fps | 97.3% |
| Vihtavuori N560 | <<locked>> | 92% | 47,239 psi | 76% | 2864 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 98% | 46,485 psi | 75% | 2835 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,103 psi | 64% | 2605 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,901 psi | 67% | 2694 fps | 97.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,845 psi | 40% | 2372 fps | 96.1% |
| Winchester Supreme 780 | <<locked>> | 88% | 39,929 psi | 64% | 2628 fps | 95.1% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 84 powders for 6.5 x 64 (Reb) loaded with the .264 | 130gr | Merlin Virtus. Alliant Reloder-26 delivers the highest muzzle velocity at 3,041 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,041 fps. ADI AR 2225 gives the best case fill at 100 %, and 84 of the 84 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 130.0 gr projectile in 0.264" calls for a 1:8.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.