Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 140gr | Peregrine VRG-3 Hybrid bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 and Norma MRP.
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 3100 | <<locked>> | 98% | 46,108 psi | 90% | 2595 fps | 98.7% |
| Accurate 4350 | <<locked>> | 88% | 45,049 psi | 87% | 2592 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 82% | 46,325 psi | 90% | 2539 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 46,514 psi | 90% | 2625 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 46,485 psi | 90% | 2559 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 46,572 psi | 90% | 2651 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 84% | 43,671 psi | 85% | 2615 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 45,919 psi | 89% | 2615 fps | 96.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 46,282 psi | 90% | 2667 fps | 96.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 43,439 psi | 84% | 2615 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,437 psi | 79% | 2582 fps | 98.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 45,672 psi | 89% | 2726 fps | 99.7% |
| Bofors RP15ᴾ | <<locked>> | 100% | 45,266 psi | 88% | 2651 fps | 96.2% |
| Bofors RP5 | <<locked>> | 98% | 46,282 psi | 90% | 2667 fps | 96.6% |
| Bofors RP7 | <<locked>> | 84% | 44,063 psi | 86% | 2503 fps | 96.8% |
| Hodgdon H414 | <<locked>> | 86% | 44,483 psi | 86% | 2585 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 84% | 44,875 psi | 87% | 2549 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 43,453 psi | 84% | 2536 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 43,816 psi | 85% | 2605 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,969 psi | 70% | 1647 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 44,701 psi | 87% | 2536 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 84% | 45,585 psi | 89% | 2530 fps | 97.6% |
| IMR 4831 | <<locked>> | 90% | 46,122 psi | 90% | 2595 fps | 99.7% |
| Lovex S065 | <<locked>> | 86% | 45,498 psi | 88% | 2533 fps | 98.8% |
| Lovex S070 | <<locked>> | 88% | 46,050 psi | 89% | 2562 fps | 98% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,741 psi | 79% | 2500 fps | 97.6% |
| Norma MRP | <<locked>> | 96% | 45,513 psi | 88% | 2687 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 44,599 psi | 87% | 2582 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 90% | 46,383 psi | 90% | 2628 fps | 98.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,656 psi | 83% | 2585 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,825 psi | 72% | 1690 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 46,514 psi | 90% | 2667 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 44,918 psi | 87% | 2612 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 43,845 psi | 85% | 2628 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 82% | 43,743 psi | 85% | 2516 fps | 100% |
| Rottweil R 905 | <<locked>> | 94% | 44,991 psi | 87% | 2602 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 84% | 44,063 psi | 86% | 2503 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 45,498 psi | 88% | 2533 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 88% | 46,050 psi | 89% | 2562 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 45,121 psi | 88% | 2572 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 45,629 psi | 89% | 2434 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 44,643 psi | 87% | 2477 fps | 97.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 44,556 psi | 87% | 2595 fps | 96.1% |
| Somchem S355 | <<locked>> | 82% | 44,309 psi | 86% | 2520 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 46,572 psi | 90% | 2641 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 45,498 psi | 88% | 2582 fps | 97.2% |
| Vihtavuori N150 | <<locked>> | 84% | 45,324 psi | 88% | 2503 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 43,482 psi | 84% | 2530 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 98% | 45,020 psi | 87% | 2562 fps | 96.7% |
| Vihtavuori N550 | <<locked>> | 88% | 45,745 psi | 89% | 2582 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 96% | 45,498 psi | 88% | 2638 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 46,050 psi | 89% | 2556 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 44,788 psi | 87% | 2592 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,858 psi | 81% | 2713 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 45,237 psi | 88% | 2572 fps | 96% |
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 3100 | <<locked>> | 90% | 34,664 psi | 67% | 2375 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 34,026 psi | 66% | 2372 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 80% | 43,569 psi | 85% | 2490 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 43,729 psi | 85% | 2572 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,714 psi | 85% | 2513 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,823 psi | 66% | 2388 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,942 psi | 74% | 2503 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 43,192 psi | 84% | 2566 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 96% | 43,163 psi | 84% | 2612 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 25,991 psi | 50% | 2201 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 94% | 33,489 psi | 65% | 2418 fps | 95.7% |
| Alliant Reloder-26 | 44 gr | 86% | 31,778 psi | 62% | 2418 fps | 95.9% |
| Bofors RP15 | <<locked>> | 98% | 42,264 psi | 82% | 2592 fps | 95.2% |
| Bofors RP5 | <<locked>> | 96% | 43,163 psi | 84% | 2612 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 38,696 psi | 75% | 2398 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 36,318 psi | 71% | 2421 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 82% | 42,221 psi | 82% | 2500 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,096 psi | 60% | 2283 fps | 98% |
| Hodgdon Superformance | <<locked>> | 82% | 37,927 psi | 74% | 2487 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,803 psi | 52% | 1470 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 39,305 psi | 76% | 2431 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,118 psi | 78% | 2428 fps | 96.2% |
| IMR 4831 | <<locked>> | 80% | 32,822 psi | 64% | 2329 fps | 97% |
| Lovex S065 | <<locked>> | 80% | 37,666 psi | 73% | 2382 fps | 97% |
| Lovex S070 | <<locked>> | 80% | 35,810 psi | 70% | 2359 fps | 95.2% |
| Lovex S071 | <<locked>> | 94% | 33,402 psi | 65% | 2346 fps | 95.3% |
| Norma MRP | 44.7 gr | 90% | 36,912 psi | 72% | 2510 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 34,287 psi | 67% | 2375 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 82% | 35,476 psi | 69% | 2411 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 98% | 39,668 psi | 77% | 2523 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,369 psi | 53% | 1509 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,393 psi | 78% | 2556 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,779 psi | 66% | 2388 fps | 96.9% |
| ReloadSwiss RS 70 | 40.6 gr | 80% | 33,315 psi | 65% | 2395 fps | 96% |
| Rottweil R 903 | <<locked>> | 80% | 41,031 psi | 80% | 2467 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 92% | 42,163 psi | 82% | 2549 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 38,696 psi | 75% | 2398 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,666 psi | 73% | 2382 fps | 97% |
| Shooters World SW4350 | <<locked>> | 80% | 35,810 psi | 70% | 2359 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,119 psi | 82% | 2520 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,830 psi | 83% | 2392 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 36,796 psi | 71% | 2326 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 41,756 psi | 81% | 2543 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 41,640 psi | 81% | 2470 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 30,705 psi | 60% | 2329 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 39,900 psi | 77% | 2477 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 39,682 psi | 77% | 2408 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,636 psi | 69% | 2375 fps | 97.6% |
| Vihtavuori N165 | <<locked>> | 96% | 41,974 psi | 82% | 2507 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 34,998 psi | 68% | 2372 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 82% | 28,355 psi | 55% | 2270 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,983 psi | 68% | 2349 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 36,318 psi | 71% | 2421 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 86% | 26,034 psi | 51% | 2277 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 94% | 42,395 psi | 82% | 2520 fps | 95.2% |
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 55 powders for 6.5 x 58 mm Mauser Port. loaded with the .264 | 140gr | Peregrine VRG-3 Hybrid. Alliant Reloder-26 delivers the highest muzzle velocity at 2,726 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,726 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 55 of the 55 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Bofors RP15, 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. Alliant Reloder-26, ReloadSwiss RS 70, Norma MRP rank at the top here: for 6.5 x 58 mm Mauser Port. with the .264 | 140gr | Peregrine VRG-3 Hybrid 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.