Load data for 6.5 x 57 + .264 | 123gr | Hornady SST

6.5 x 57 cartridge drawing
Hornady logo

Load Specifications

Bullet Manufacturer:Hornady
Bullet Weight:123 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Case Length (l3):2.232"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:59 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:56,565 psi
Recommended Twist Rate:1:9.0

Load data in caliber 6.5 x 57 with .264 | 123gr | Hornady SST bullet and 71 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-26 and Hodgdon Superformance.

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"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>82%49,458 psi87%2707 fps100%
Accurate 2700<<locked>>84%50,908 psi90%2749 fps96.9%
Accurate 3100ᴾ<<locked>>100%46,818 psi83%2769 fps97.8%
Accurate 4064<<locked>>84%49,559 psi88%2756 fps100%
Accurate 4350<<locked>>92%49,385 psi87%2835 fps99.4%
ADI AR 2208<<locked>>86%50,488 psi89%2782 fps99.7%
ADI AR 2209<<locked>>98%50,952 psi90%2867 fps96%
Alliant Power Pro 2000-MR<<locked>>82%48,704 psi86%2884 fps99.7%
Alliant Power Pro Varmint<<locked>>98%50,604 psi89%2861 fps96%
Alliant Reloder- TS 15.5<<locked>>86%50,589 psi89%2802 fps100%
Alliant Reloder-15<<locked>>84%50,894 psi90%2822 fps99.8%
Alliant Reloder-16<<locked>>94%50,357 psi89%2890 fps99.7%
Alliant Reloder-17<<locked>>90%51,140 psi90%2920 fps100%
Alliant Reloder-19<<locked>>98%49,879 psi88%2851 fps95.9%
Alliant Reloder-23ᴾ<<locked>>100%44,048 psi78%2795 fps99.8%
Alliant Reloder-25ᴾ<<locked>>100%38,696 psi68%2694 fps96.2%
Alliant Reloder-26ᴾ<<locked>>100%50,067 psi89%2976 fps99.6%
Bofors RP3<<locked>>86%51,184 psi90%2818 fps100%
Bofors RP7<<locked>>90%51,184 psi90%2792 fps97.2%
Hodgdon H380<<locked>>84%48,385 psi86%2769 fps99%
Hodgdon H414<<locked>>90%48,356 psi85%2825 fps97.3%
Hodgdon H4350<<locked>>88%49,052 psi87%2792 fps96.1%
Hodgdon Hybrid 100V<<locked>>96%50,430 psi89%2825 fps100%
Hodgdon LEVERevolution<<locked>>82%49,182 psi87%2815 fps100%
Hodgdon Superformance<<locked>>90%48,211 psi85%2851 fps96.9%
Hodgdon TrailBossᴾ<<locked>>100%35,897 psi63%1768 fps100%
Hodgdon VARGET<<locked>>82%50,749 psi90%2785 fps100%
IMR 4064<<locked>>84%49,806 psi88%2762 fps99.8%
IMR 4166 Enduron<<locked>>82%49,269 psi87%2733 fps97.4%
IMR 4350<<locked>>92%48,385 psi86%2766 fps96.7%
IMR 4451 Enduron<<locked>>88%49,734 psi88%2769 fps97.4%
IMR 4831<<locked>>94%49,806 psi88%2828 fps99.5%
IMR 4895<<locked>>82%48,921 psi86%2795 fps99.9%
Lovex S062<<locked>>84%49,908 psi88%2762 fps100%
Lovex S065<<locked>>90%49,356 psi87%2766 fps98.5%
Lovex S070<<locked>>92%50,386 psi89%2802 fps97.8%
Norma 203B<<locked>>84%50,198 psi89%2808 fps99.9%
Norma MRPᴾ<<locked>>100%49,705 psi88%2930 fps97.5%
Norma URP<<locked>>92%48,631 psi86%2825 fps99.3%
Ramshot Big Game<<locked>>84%50,473 psi89%2828 fps99.9%
Ramshot Hunter<<locked>>94%50,705 psi90%2874 fps98.5%
ReloadSwiss RS 14ᴾ<<locked>>100%36,419 psi64%1811 fps100%
ReloadSwiss RS 50<<locked>>84%48,660 psi86%2756 fps97.8%
ReloadSwiss RS 60<<locked>>88%50,879 psi90%2920 fps100%
ReloadSwiss RS 62<<locked>>92%48,892 psi86%2851 fps99.2%
ReloadSwiss RS 70<<locked>>92%48,008 psi85%2871 fps98.9%
Rottweil R 902<<locked>>82%48,892 psi86%2726 fps100%
Rottweil R 903<<locked>>88%51,082 psi90%2812 fps100%
Rottweil R 905<<locked>>98%48,994 psi87%2838 fps95.9%
Rottweil R 907<<locked>>90%51,184 psi90%2792 fps97.2%
Shooters World Long Rifle<<locked>>90%49,356 psi87%2766 fps98.5%
Shooters World Precision<<locked>>84%49,908 psi88%2762 fps100%
Shooters World SW4350<<locked>>92%50,386 psi89%2802 fps97.8%
SNPE Vectan SP 11<<locked>>86%49,327 psi87%2815 fps99.9%
SNPE Vectan SP 9<<locked>>82%51,039 psi90%2802 fps99.9%
SNPE Vectan Tubal 5000<<locked>>86%49,777 psi88%2671 fps100%
SNPE Vectan Tubal 7000<<locked>>90%49,182 psi87%2717 fps97.4%
Somchem S355<<locked>>86%48,370 psi86%2759 fps99.9%
Somchem S365<<locked>>96%50,314 psi89%2884 fps100%
Somchem S385<<locked>>98%49,443 psi87%2815 fps96.9%
Vihtavuori N135<<locked>>82%48,617 psi86%2694 fps100%
Vihtavuori N140<<locked>>82%49,182 psi87%2707 fps100%
Vihtavuori N150<<locked>>88%49,284 psi87%2740 fps100%
Vihtavuori N160<<locked>>92%50,763 psi90%2822 fps99.5%
Vihtavuori N540<<locked>>84%50,517 psi89%2749 fps100%
Vihtavuori N550<<locked>>92%49,995 psi88%2828 fps99.3%
Vihtavuori N555ᴾ<<locked>>100%49,008 psi87%2871 fps99.7%
Winchester 6.5 StaBALL<<locked>>92%50,299 psi89%2792 fps100%
Winchester 760<<locked>>90%48,704 psi86%2831 fps97.4%
Winchester StaBALL HDᴾ<<locked>>100%39,653 psi70%2822 fps99.9%
Winchester StaBALL Match<<locked>>82%50,618 psi89%2802 fps100%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>80%46,209 psi82%2657 fps100%
Accurate 2700<<locked>>80%44,831 psi79%2638 fps95.5%
Accurate 3100<<locked>>94%38,261 psi68%2605 fps95.6%
Accurate 4064<<locked>>80%43,700 psi77%2657 fps100%
Accurate 4350<<locked>>80%32,460 psi57%2484 fps95.3%
ADI AR 2208<<locked>>80%41,843 psi74%2625 fps98.6%
ADI AR 2209<<locked>>96%47,703 psi84%2808 fps95.1%
Alliant Power Pro 2000-MR<<locked>>80%45,237 psi80%2818 fps99.3%
Alliant Power Pro Varmint<<locked>>96%47,369 psi84%2802 fps95.2%
Alliant Reloder- TS 15.5<<locked>>80%41,887 psi74%2648 fps99.6%
Alliant Reloder-15<<locked>>80%44,715 psi79%2710 fps99.2%
Alliant Reloder-16<<locked>>80%32,460 psi57%2500 fps95.4%
Alliant Reloder-17<<locked>>80%36,434 psi64%2628 fps98.6%
Alliant Reloder-19<<locked>>96%46,746 psi83%2795 fps95.1%
Alliant Reloder-23<<locked>>86%28,514 psi50%2411 fps95.3%
Alliant Reloder-25<<locked>>98%36,535 psi65%2638 fps95.3%
Alliant Reloder-2647.7 gr90%34,983 psi62%2648 fps95.7%
Bofors RP3<<locked>>80%41,916 psi74%2657 fps99.6%
Bofors RP7<<locked>>84%42,496 psi75%2631 fps95%
Hodgdon H380<<locked>>80%42,453 psi75%2661 fps97.9%
Hodgdon H414<<locked>>86%42,380 psi75%2710 fps95.8%
Hodgdon H4350<<locked>>86%46,035 psi81%2736 fps95.3%
Hodgdon Hybrid 100V<<locked>>80%30,066 psi53%2402 fps96.4%
Hodgdon LEVERevolution<<locked>>80%46,021 psi81%2762 fps99.9%
Hodgdon Superformance48.1 gr88%44,860 psi79%2785 fps96%
Hodgdon TrailBoss<<locked>>80%26,832 psi47%1581 fps100%
Hodgdon VARGET<<locked>>80%47,572 psi84%2733 fps99.9%
IMR 4064<<locked>>80%43,990 psi78%2657 fps99.2%
IMR 4166 Enduron<<locked>>80%46,224 psi82%2680 fps96.7%
IMR 4350<<locked>>88%42,873 psi76%2661 fps95.2%
IMR 4451 Enduron<<locked>>82%41,365 psi73%2608 fps95.2%
IMR 4831<<locked>>80%31,589 psi56%2448 fps95.1%
IMR 4895<<locked>>80%45,832 psi81%2740 fps99.6%
Lovex S062<<locked>>80%44,150 psi78%2661 fps99.9%
Lovex S065<<locked>>80%36,303 psi64%2500 fps95.2%
Lovex S070<<locked>>86%41,568 psi73%2635 fps95.7%
Norma 203B<<locked>>80%44,077 psi78%2700 fps99.4%
Norma MRP<<locked>>96%43,221 psi76%2802 fps95.8%
Norma URP<<locked>>80%32,706 psi58%2487 fps95.3%
Ramshot Big Game<<locked>>80%44,019 psi78%2717 fps99.3%
Ramshot Hunter<<locked>>86%38,885 psi69%2644 fps95.6%
ReloadSwiss RS 14<<locked>>80%27,108 psi48%1617 fps100%
ReloadSwiss RS 50<<locked>>80%42,569 psi75%2641 fps96.4%
ReloadSwiss RS 60<<locked>>80%38,769 psi69%2694 fps100%
ReloadSwiss RS 62<<locked>>82%34,664 psi61%2562 fps95.8%
ReloadSwiss RS 7044.1 gr84%36,550 psi65%2625 fps95.8%
Rottweil R 902<<locked>>80%45,832 psi81%2674 fps100%
Rottweil R 903<<locked>>80%39,349 psi70%2598 fps99.2%
Rottweil R 905<<locked>>96%45,759 psi81%2779 fps95%
Rottweil R 907<<locked>>84%42,496 psi75%2631 fps95%
Shooters World Long Rifle<<locked>>80%36,303 psi64%2500 fps95.2%
Shooters World Precision<<locked>>80%44,150 psi78%2661 fps99.9%
Shooters World SW4350<<locked>>86%41,568 psi73%2635 fps95.7%
SNPE Vectan SP 11<<locked>>80%40,277 psi71%2648 fps98.8%
SNPE Vectan SP 9<<locked>>80%47,601 psi84%2743 fps99.7%
SNPE Vectan Tubal 5000<<locked>>80%41,292 psi73%2533 fps100%
SNPE Vectan Tubal 7000<<locked>>84%40,422 psi71%2552 fps95.2%
Somchem S355<<locked>>80%40,016 psi71%2602 fps99.1%
Somchem S365<<locked>>80%29,341 psi52%2441 fps97.6%
Somchem S385<<locked>>94%43,642 psi77%2707 fps95.4%
Vihtavuori N135<<locked>>80%45,759 psi81%2648 fps100%
Vihtavuori N140<<locked>>80%46,108 psi82%2657 fps100%
Vihtavuori N150<<locked>>80%38,043 psi67%2533 fps99.6%
Vihtavuori N160<<locked>>80%33,968 psi60%2487 fps95.7%
Vihtavuori N540<<locked>>80%44,498 psi79%2651 fps100%
Vihtavuori N550<<locked>>80%33,620 psi59%2490 fps95.4%
Vihtavuori N555<<locked>>86%30,980 psi55%2490 fps95.5%
Winchester 6.5 StaBALL<<locked>>80%33,533 psi59%2464 fps97.9%
Winchester 760<<locked>>86%42,699 psi75%2717 fps95.9%
Winchester StaBALL HD<<locked>>90%28,558 psi50%2490 fps95.9%
Winchester StaBALL Match<<locked>>80%47,485 psi84%2749 fps99.9%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 71 powders for 6.5 x 57 loaded with the .264 | 123gr | Hornady SST. Alliant Reloder-26 delivers the highest muzzle velocity at 2,976 fps; across all powders the maximum-charge window runs from 1,768 fps to 2,976 fps. Accurate 3100 gives the best case fill at 100 %, and 71 of the 71 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (390 MPa), the top charges use 63–90 %, leaving at least 10 % headroom. The 123.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, 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. ReloadSwiss RS 70, Alliant Reloder-26, Hodgdon Superformance rank at the top here: for 6.5 x 57 with the .264 | 123gr | Hornady SST 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.

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