Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 140gr | Remington PSP Core-Lokt bullet and 54 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 and Winchester StaBALL HD.
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>> | 96% | 45,426 psi | 88% | 2582 fps | 98.6% |
| Accurate 4350 | <<locked>> | 86% | 44,208 psi | 86% | 2572 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 45,600 psi | 89% | 2608 fps | 96.2% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 45,788 psi | 89% | 2612 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 88% | 45,629 psi | 89% | 2635 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 84% | 45,948 psi | 89% | 2654 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 45,237 psi | 88% | 2605 fps | 96.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 45,295 psi | 88% | 2651 fps | 96.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 45,701 psi | 89% | 2651 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,685 psi | 83% | 2628 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 44,788 psi | 87% | 2710 fps | 99.6% |
| Bofors RP15 | <<locked>> | 98% | 44,338 psi | 86% | 2631 fps | 96% |
| Bofors RP5 | <<locked>> | 96% | 45,295 psi | 88% | 2651 fps | 96.4% |
| Bofors RP7 | <<locked>> | 84% | 45,701 psi | 89% | 2533 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 86% | 46,427 psi | 90% | 2621 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 82% | 43,714 psi | 85% | 2530 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 45,803 psi | 89% | 2572 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 45,905 psi | 89% | 2644 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,303 psi | 71% | 1657 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 46,456 psi | 90% | 2566 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 82% | 44,338 psi | 86% | 2510 fps | 97.5% |
| IMR 4831 | <<locked>> | 88% | 45,107 psi | 88% | 2575 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 44,498 psi | 86% | 2513 fps | 98.7% |
| Lovex S070 | <<locked>> | 86% | 45,339 psi | 88% | 2549 fps | 98% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,250 psi | 84% | 2543 fps | 98.2% |
| Norma 204 | <<locked>> | 88% | 46,311 psi | 90% | 2602 fps | 96.3% |
| Norma MRP | <<locked>> | 94% | 44,614 psi | 87% | 2671 fps | 97.7% |
| Norma URP | <<locked>> | 86% | 43,888 psi | 85% | 2569 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 88% | 45,527 psi | 88% | 2612 fps | 98.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,020 psi | 87% | 2628 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,912 psi | 72% | 1696 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 45,629 psi | 89% | 2648 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 43,961 psi | 85% | 2592 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 45,934 psi | 89% | 2667 fps | 99.5% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,394 psi | 80% | 2638 fps | 96.8% |
| Rottweil R 903 | <<locked>> | 82% | 46,006 psi | 89% | 2552 fps | 100% |
| Rottweil R 905 | <<locked>> | 92% | 44,121 psi | 86% | 2585 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 84% | 45,701 psi | 89% | 2533 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 44,498 psi | 86% | 2513 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 86% | 45,339 psi | 88% | 2549 fps | 98% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 46,514 psi | 90% | 2510 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,714 psi | 85% | 2579 fps | 96% |
| Somchem S355 | <<locked>> | 82% | 46,122 psi | 90% | 2546 fps | 100% |
| Somchem S365 | <<locked>> | 90% | 45,484 psi | 88% | 2621 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 44,730 psi | 87% | 2569 fps | 97.1% |
| Vihtavuori N150 | <<locked>> | 82% | 44,295 psi | 86% | 2484 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 45,455 psi | 88% | 2562 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 96% | 44,063 psi | 86% | 2546 fps | 96.5% |
| Vihtavuori N550 | <<locked>> | 86% | 44,991 psi | 87% | 2569 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 94% | 44,933 psi | 87% | 2625 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 44,715 psi | 87% | 2536 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 43,700 psi | 85% | 2569 fps | 97.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,961 psi | 85% | 2753 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 44,483 psi | 86% | 2559 fps | 95.9% |
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>> | 88% | 34,606 psi | 67% | 2369 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 36,013 psi | 70% | 2411 fps | 98% |
| ADI AR 2209 | <<locked>> | 90% | 42,612 psi | 83% | 2549 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 42,888 psi | 83% | 2556 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,360 psi | 69% | 2421 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,813 psi | 77% | 2539 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 42,380 psi | 82% | 2549 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 42,366 psi | 82% | 2592 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,918 psi | 50% | 2192 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,156 psi | 64% | 2405 fps | 95.6% |
| Alliant Reloder-26 | 43.7 gr | 84% | 31,430 psi | 61% | 2405 fps | 95.9% |
| Bofors RP15 | <<locked>> | 96% | 41,785 psi | 81% | 2579 fps | 95.2% |
| Bofors RP5 | <<locked>> | 94% | 42,366 psi | 82% | 2592 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 40,335 psi | 78% | 2428 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 38,218 psi | 74% | 2461 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 41,220 psi | 80% | 2480 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,967 psi | 64% | 2326 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 80% | 37,130 psi | 72% | 2464 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,282 psi | 53% | 1483 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 38,450 psi | 75% | 2411 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,843 psi | 81% | 2461 fps | 96.8% |
| IMR 4831 | <<locked>> | 80% | 34,853 psi | 68% | 2372 fps | 97.7% |
| Lovex S065 | <<locked>> | 80% | 39,363 psi | 76% | 2415 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 37,492 psi | 73% | 2392 fps | 95.9% |
| Lovex S071 | <<locked>> | 92% | 33,431 psi | 65% | 2343 fps | 95.4% |
| Norma 204 | <<locked>> | 86% | 43,294 psi | 84% | 2546 fps | 95.4% |
| Norma MRP | 44.5 gr | 88% | 36,477 psi | 71% | 2497 fps | 95% |
| Norma URP | <<locked>> | 80% | 35,984 psi | 70% | 2408 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 80% | 34,896 psi | 68% | 2395 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 96% | 39,117 psi | 76% | 2510 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,630 psi | 54% | 1516 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,351 psi | 82% | 2592 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,824 psi | 70% | 2431 fps | 97.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,027 psi | 68% | 2434 fps | 96.9% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 38,725 psi | 75% | 2575 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 43,018 psi | 84% | 2500 fps | 100% |
| Rottweil R 905 | <<locked>> | 90% | 41,466 psi | 81% | 2533 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 40,335 psi | 78% | 2428 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,363 psi | 76% | 2415 fps | 97.6% |
| Shooters World SW4350 | <<locked>> | 80% | 37,492 psi | 73% | 2392 fps | 95.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,435 psi | 75% | 2359 fps | 96% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,075 psi | 80% | 2526 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 43,453 psi | 84% | 2500 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 32,445 psi | 63% | 2369 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 39,407 psi | 77% | 2467 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 41,394 psi | 80% | 2434 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,304 psi | 72% | 2408 fps | 98.1% |
| Vihtavuori N165 | <<locked>> | 94% | 41,205 psi | 80% | 2493 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 36,912 psi | 72% | 2411 fps | 97.8% |
| Vihtavuori N555 | <<locked>> | 80% | 28,384 psi | 55% | 2267 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,593 psi | 71% | 2385 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 38,218 psi | 74% | 2461 fps | 96% |
| Winchester StaBALL HD | 42 gr | 84% | 25,976 psi | 50% | 2274 fps | 96.4% |
| Winchester Supreme 780 | <<locked>> | 92% | 41,510 psi | 81% | 2503 fps | 95% |
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 54 powders for 6.5 x 58 mm Mauser Port. loaded with the .264 | 140gr | Remington PSP Core-Lokt. Winchester StaBALL HD delivers the highest muzzle velocity at 2,753 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,753 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 54 of the 54 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Hodgdon TrailBoss, Lovex S071 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. Norma MRP, Alliant Reloder-26, Winchester StaBALL HD rank at the top here: for 6.5 x 58 mm Mauser Port. with the .264 | 140gr | Remington PSP Core-Lokt 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.