Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 90gr | Impala LWHV LS bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and SNPE Vectan SP 11.
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 2495 | <<locked>> | 84% | 44,106 psi | 86% | 3012 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 44,193 psi | 86% | 3045 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 82% | 44,295 psi | 86% | 3041 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 88% | 44,889 psi | 87% | 3035 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 82% | 46,238 psi | 90% | 3058 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 82% | 45,701 psi | 89% | 3071 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 44,672 psi | 87% | 3068 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 86% | 45,150 psi | 88% | 3077 fps | 96.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 44,367 psi | 86% | 3150 fps | 97% |
| Bofors RP3 | <<locked>> | 88% | 44,715 psi | 87% | 3074 fps | 97.7% |
| Hodgdon BL-C2 | <<locked>> | 82% | 44,831 psi | 87% | 3074 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 82% | 44,643 psi | 87% | 3058 fps | 97.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,919 psi | 89% | 3104 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 45,513 psi | 88% | 3127 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,346 psi | 69% | 2031 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 45,324 psi | 88% | 3054 fps | 97.3% |
| IMR 3031 | <<locked>> | 84% | 46,543 psi | 90% | 3127 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 44,585 psi | 87% | 3022 fps | 96.1% |
| IMR 4895 | <<locked>> | 86% | 46,166 psi | 90% | 3117 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 82% | 46,238 psi | 90% | 3058 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 84% | 46,267 psi | 90% | 3087 fps | 99.4% |
| Lovex S060 | <<locked>> | 82% | 44,367 psi | 86% | 2972 fps | 96.6% |
| Lovex S062 | <<locked>> | 86% | 44,730 psi | 87% | 3035 fps | 98% |
| Norma 201 | <<locked>> | 84% | 46,311 psi | 90% | 3054 fps | 98.2% |
| Norma 202 | <<locked>> | 84% | 46,369 psi | 90% | 3071 fps | 99.7% |
| Norma 203B | <<locked>> | 86% | 44,454 psi | 86% | 3068 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 86% | 43,918 psi | 85% | 3074 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 45,513 psi | 88% | 3074 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,737 psi | 69% | 2077 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 44,019 psi | 85% | 3159 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 84% | 44,324 psi | 86% | 3002 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 90% | 44,875 psi | 87% | 3071 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 46,267 psi | 90% | 3087 fps | 99.4% |
| Shooters World Precision | <<locked>> | 86% | 44,730 psi | 87% | 3035 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 45,455 psi | 88% | 3114 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 45,484 psi | 88% | 3061 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 44,831 psi | 87% | 2959 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 44,701 psi | 87% | 2963 fps | 99.9% |
| Somchem S335 | <<locked>> | 82% | 44,599 psi | 87% | 2963 fps | 99.8% |
| Somchem S341 | <<locked>> | 82% | 44,034 psi | 86% | 3015 fps | 96.3% |
| Somchem S355 | <<locked>> | 90% | 45,484 psi | 88% | 3071 fps | 97.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,150 psi | 88% | 3166 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 82% | 44,788 psi | 87% | 2959 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 45,600 psi | 89% | 3045 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 46,412 psi | 90% | 3045 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 92% | 46,180 psi | 90% | 3051 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 82% | 46,267 psi | 90% | 3051 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 86% | 45,107 psi | 88% | 3035 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 44,324 psi | 86% | 3022 fps | 97.1% |
| Winchester 748 | <<locked>> | 82% | 45,368 psi | 88% | 3097 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 44,599 psi | 87% | 3061 fps | 97.2% |
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% | 39,247 psi | 76% | 2910 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 36,985 psi | 72% | 2884 fps | 98.5% |
| ADI AR 2206H | <<locked>> | 80% | 41,611 psi | 81% | 2979 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 86% | 42,453 psi | 82% | 2979 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,410 psi | 84% | 2999 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 80% | 42,699 psi | 83% | 3015 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 37,159 psi | 72% | 2890 fps | 95.4% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,380 psi | 82% | 3015 fps | 95.3% |
| Alliant Reloder-17 | 44.5 gr | 88% | 38,986 psi | 76% | 3015 fps | 95.1% |
| Bofors RP3 | <<locked>> | 82% | 37,072 psi | 72% | 2897 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,090 psi | 82% | 3012 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 80% | 41,887 psi | 81% | 2995 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 38,406 psi | 75% | 2933 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,710 psi | 73% | 2943 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,324 psi | 51% | 1814 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,190 psi | 78% | 2940 fps | 95.9% |
| IMR 3031 | <<locked>> | 80% | 40,872 psi | 79% | 3009 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 41,843 psi | 81% | 2959 fps | 95.3% |
| IMR 4895 | <<locked>> | 82% | 40,915 psi | 79% | 2995 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 43,410 psi | 84% | 2999 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 80% | 40,698 psi | 79% | 2969 fps | 98.5% |
| Lovex S060 | <<locked>> | 80% | 41,974 psi | 82% | 2920 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 37,521 psi | 73% | 2867 fps | 96% |
| Norma 201 | <<locked>> | 80% | 41,365 psi | 80% | 2946 fps | 97.1% |
| Norma 202 | <<locked>> | 80% | 41,060 psi | 80% | 2959 fps | 99% |
| Norma 203B | <<locked>> | 82% | 39,407 psi | 77% | 2949 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 84% | 41,292 psi | 80% | 3012 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,511 psi | 83% | 3005 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 52% | 1864 fps | 100% |
| ReloadSwiss RS 60 | 41.5 gr | 82% | 34,418 psi | 67% | 2897 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 39,349 psi | 76% | 2890 fps | 96.5% |
| Rottweil R 903 | <<locked>> | 84% | 37,217 psi | 72% | 2894 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,698 psi | 79% | 2969 fps | 98.5% |
| Shooters World Precision | <<locked>> | 80% | 37,521 psi | 73% | 2867 fps | 96% |
| SNPE Vectan SP 11 | 42.8 gr | 86% | 40,161 psi | 78% | 2989 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,161 psi | 78% | 2943 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,322 psi | 82% | 2907 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,143 psi | 68% | 2749 fps | 98.6% |
| Somchem S335 | <<locked>> | 80% | 42,177 psi | 82% | 2913 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 41,046 psi | 80% | 2949 fps | 95.5% |
| Somchem S355 | <<locked>> | 84% | 37,927 psi | 74% | 2897 fps | 95.1% |
| Somchem S365 | <<locked>> | 92% | 35,302 psi | 69% | 2917 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 42,250 psi | 82% | 2910 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,072 psi | 74% | 2887 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 38,783 psi | 75% | 2884 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 82% | 33,866 psi | 66% | 2769 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 43,424 psi | 84% | 2992 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 80% | 37,420 psi | 73% | 2861 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 39,059 psi | 76% | 2900 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 42,525 psi | 83% | 3035 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,363 psi | 76% | 2940 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 51 powders for 6.5 x 58 mm Mauser Port. loaded with the .264 | 90gr | Impala LWHV LS. Somchem S365 delivers the highest muzzle velocity at 3,166 fps; across all powders the maximum-charge window runs from 2,031 fps to 3,166 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 51 of the 51 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 90.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, Hodgdon TrailBoss, ReloadSwiss RS 14 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 60, Alliant Reloder-17, SNPE Vectan SP 11 rank at the top here: for 6.5 x 58 mm Mauser Port. with the .264 | 90gr | Impala LWHV LS 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.