Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 124gr | Peregrine VLR-4 bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 62.
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.
A valid access license is required to use the Personalized Load Calculator.
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 2495 | <<locked>> | 82% | 45,020 psi | 87% | 2621 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,221 psi | 82% | 2664 fps | 96.4% |
| Accurate 4064 | <<locked>> | 84% | 45,382 psi | 88% | 2667 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 44,860 psi | 87% | 2733 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 84% | 44,338 psi | 86% | 2644 fps | 98.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 45,020 psi | 87% | 2785 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 44,048 psi | 86% | 2664 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 82% | 44,338 psi | 86% | 2677 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 92% | 43,772 psi | 85% | 2740 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 88% | 44,019 psi | 85% | 2766 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,408 psi | 78% | 2694 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,382 psi | 88% | 2861 fps | 98.6% |
| Bofors RP3 | <<locked>> | 84% | 43,714 psi | 85% | 2667 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 84% | 44,831 psi | 87% | 2680 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 90% | 44,541 psi | 87% | 2726 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 46,412 psi | 90% | 2733 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 45,527 psi | 88% | 2726 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,534 psi | 69% | 1732 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 43,729 psi | 85% | 2625 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 46,427 psi | 90% | 2651 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 46,427 psi | 90% | 2677 fps | 96.3% |
| IMR 4831 | <<locked>> | 94% | 45,803 psi | 89% | 2733 fps | 98.8% |
| IMR 4895 | <<locked>> | 82% | 45,469 psi | 88% | 2710 fps | 99.5% |
| Lovex S062 | <<locked>> | 84% | 46,470 psi | 90% | 2677 fps | 99.9% |
| Lovex S065 | <<locked>> | 90% | 45,788 psi | 89% | 2674 fps | 97.6% |
| Lovex S070 | <<locked>> | 92% | 46,499 psi | 90% | 2707 fps | 96.7% |
| Norma 203B | <<locked>> | 84% | 46,528 psi | 90% | 2720 fps | 99.6% |
| Norma URP | <<locked>> | 92% | 44,614 psi | 87% | 2726 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 82% | 43,613 psi | 85% | 2684 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 94% | 46,456 psi | 90% | 2769 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,984 psi | 70% | 1775 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 45,179 psi | 88% | 2661 fps | 96.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 43,743 psi | 85% | 2769 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 44,585 psi | 87% | 2753 fps | 98.3% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 44,150 psi | 86% | 2766 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 82% | 45,281 psi | 88% | 2638 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 86% | 43,903 psi | 85% | 2664 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 45,788 psi | 89% | 2674 fps | 97.6% |
| Shooters World Precision | <<locked>> | 84% | 46,470 psi | 90% | 2677 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 92% | 46,499 psi | 90% | 2707 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 45,614 psi | 89% | 2726 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 43,700 psi | 85% | 2549 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 45,469 psi | 88% | 2621 fps | 96.2% |
| Somchem S355 | <<locked>> | 86% | 44,701 psi | 87% | 2671 fps | 99.6% |
| Somchem S365 | <<locked>> | 96% | 45,774 psi | 89% | 2789 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 45,063 psi | 88% | 2615 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 45,832 psi | 89% | 2631 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 45,527 psi | 88% | 2651 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 43,613 psi | 85% | 2671 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 82% | 44,005 psi | 85% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 45,876 psi | 89% | 2726 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,512 psi | 86% | 2769 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 46,586 psi | 90% | 2707 fps | 99.9% |
| Winchester 760 | <<locked>> | 90% | 44,860 psi | 87% | 2730 fps | 96.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,984 psi | 70% | 2697 fps | 99.1% |
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 2495 | <<locked>> | 80% | 42,105 psi | 82% | 2572 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 39,117 psi | 76% | 2602 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 39,856 psi | 77% | 2569 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 33,605 psi | 65% | 2497 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 39,073 psi | 76% | 2539 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,945 psi | 81% | 2723 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,754 psi | 75% | 2562 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,626 psi | 81% | 2625 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,982 psi | 66% | 2516 fps | 95.7% |
| Alliant Reloder-17 | 39.1 gr | 80% | 33,373 psi | 65% | 2526 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 29,283 psi | 57% | 2415 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 94% | 36,506 psi | 71% | 2664 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 38,319 psi | 74% | 2562 fps | 99% |
| Hodgdon H380 | <<locked>> | 80% | 39,175 psi | 76% | 2569 fps | 96.8% |
| Hodgdon H414 | <<locked>> | 88% | 41,771 psi | 81% | 2671 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 29,066 psi | 56% | 2356 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,424 psi | 82% | 2671 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,513 psi | 51% | 1552 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,046 psi | 80% | 2575 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,352 psi | 84% | 2592 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 43,671 psi | 85% | 2628 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 32,764 psi | 64% | 2461 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 42,641 psi | 83% | 2654 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 40,625 psi | 79% | 2569 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 38,000 psi | 74% | 2516 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 40,756 psi | 79% | 2595 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 40,988 psi | 80% | 2612 fps | 98.8% |
| Norma URP | <<locked>> | 84% | 34,113 psi | 66% | 2503 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 40,611 psi | 79% | 2628 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 40,712 psi | 79% | 2657 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,731 psi | 52% | 1585 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,639 psi | 77% | 2552 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,607 psi | 69% | 2595 fps | 99.7% |
| ReloadSwiss RS 62 | 41 gr | 84% | 33,518 psi | 65% | 2516 fps | 95% |
| ReloadSwiss RS 70 | 42.7 gr | 86% | 36,100 psi | 70% | 2585 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 42,496 psi | 83% | 2589 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 36,042 psi | 70% | 2507 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 38,000 psi | 74% | 2516 fps | 95.4% |
| Shooters World Precision | <<locked>> | 80% | 40,625 psi | 79% | 2569 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 40,756 psi | 79% | 2595 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,144 psi | 72% | 2559 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,363 psi | 75% | 2454 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,656 psi | 83% | 2569 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 36,898 psi | 72% | 2513 fps | 98.3% |
| Somchem S365 | <<locked>> | 80% | 26,658 psi | 52% | 2339 fps | 95.9% |
| Vihtavuori N135 | <<locked>> | 80% | 42,148 psi | 82% | 2566 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,004 psi | 84% | 2582 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,114 psi | 68% | 2451 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 33,330 psi | 65% | 2451 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 41,350 psi | 80% | 2572 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 35,143 psi | 68% | 2507 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 90% | 31,618 psi | 61% | 2490 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,966 psi | 60% | 2375 fps | 96.6% |
| Winchester 760 | <<locked>> | 88% | 41,771 psi | 81% | 2671 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 29,428 psi | 57% | 2493 fps | 95.9% |
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 | 124gr | Peregrine VLR-4. Alliant Reloder-26 delivers the highest muzzle velocity at 2,861 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,861 fps. Accurate 3100 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 69–90 %, leaving at least 10 % headroom. The 124.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for 6.5 x 58 mm Mauser Port. with the .264 | 124gr | Peregrine VLR-4 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.