Load data for 6.5 x 57 + .264 | 125gr | Hasler ARIETE

6.5 x 57 cartridge drawing
Hasler logo

Load Specifications

Bullet Manufacturer:Hasler
Bullet Weight:125 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:1:8.0

Load data in caliber 6.5 x 57 with .264 | 125gr | Hasler ARIETE bullet and 73 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%49,719 psi88%2687 fps100%
Accurate 2700<<locked>>82%48,066 psi85%2677 fps96.4%
Accurate 3100ᴾ<<locked>>100%46,992 psi83%2753 fps98%
Accurate 4064<<locked>>84%49,792 psi88%2733 fps100%
Accurate 4350<<locked>>92%49,472 psi87%2812 fps99.5%
ADI AR 2208<<locked>>86%50,459 psi89%2756 fps99.8%
ADI AR 2209<<locked>>98%51,068 psi90%2848 fps96.2%
Alliant Power Pro 2000-MR<<locked>>82%48,704 psi86%2861 fps99.7%
Alliant Reloder- TS 15.5<<locked>>86%50,908 psi90%2785 fps100%
Alliant Reloder-15<<locked>>84%51,155 psi90%2802 fps99.9%
Alliant Reloder-16<<locked>>94%50,720 psi90%2874 fps99.8%
Alliant Reloder-17<<locked>>88%48,225 psi85%2848 fps100%
Alliant Reloder-19<<locked>>98%50,357 psi89%2838 fps96.2%
Alliant Reloder-23ᴾ<<locked>>100%44,498 psi79%2782 fps99.9%
Alliant Reloder-25ᴾ<<locked>>100%39,044 psi69%2680 fps96.5%
Alliant Reloder-26ᴾ<<locked>>100%50,372 psi89%2959 fps99.6%
Bofors RP3<<locked>>86%51,184 psi90%2795 fps100%
Bofors RP7<<locked>>88%48,298 psi85%2720 fps96.7%
Hodgdon H380<<locked>>84%48,675 psi86%2753 fps99.1%
Hodgdon H414<<locked>>90%48,791 psi86%2808 fps97.5%
Hodgdon H4350<<locked>>88%49,081 psi87%2769 fps96.2%
Hodgdon Hybrid 100V<<locked>>96%50,546 psi89%2802 fps100%
Hodgdon LEVERevolution<<locked>>82%49,472 psi87%2795 fps100%
Hodgdon Superformance<<locked>>90%48,399 psi86%2831 fps97%
Hodgdon TrailBossᴾ<<locked>>100%36,013 psi64%1755 fps100%
Hodgdon VARGET<<locked>>82%51,010 psi90%2766 fps100%
IMR 4064<<locked>>84%50,053 psi88%2743 fps99.8%
IMR 4166 Enduron<<locked>>82%49,501 psi88%2717 fps97.5%
IMR 4350<<locked>>92%48,776 psi86%2749 fps96.9%
IMR 4451 Enduron<<locked>>88%49,705 psi88%2746 fps97.5%
IMR 4831<<locked>>94%50,227 psi89%2812 fps99.6%
IMR 4895<<locked>>82%49,182 psi87%2776 fps99.9%
Lovex S062<<locked>>84%50,169 psi89%2743 fps100%
Lovex S065<<locked>>90%49,661 psi88%2746 fps98.7%
Lovex S070<<locked>>92%50,444 psi89%2782 fps97.9%
Lovex S071ᴾ<<locked>>100%39,160 psi69%2605 fps96%
Norma 203B<<locked>>84%50,444 psi89%2789 fps99.9%
Norma MRPᴾ<<locked>>100%49,922 psi88%2913 fps97.7%
Norma URP<<locked>>92%48,704 psi86%2802 fps99.4%
Ramshot Big Game<<locked>>84%50,836 psi90%2812 fps99.9%
Ramshot Hunter<<locked>>94%50,821 psi90%2851 fps98.6%
ReloadSwiss RS 14ᴾ<<locked>>100%36,535 psi65%1795 fps100%
ReloadSwiss RS 50<<locked>>84%48,994 psi87%2740 fps98%
ReloadSwiss RS 60<<locked>>86%47,659 psi84%2844 fps100%
ReloadSwiss RS 62<<locked>>92%49,356 psi87%2835 fps99.3%
ReloadSwiss RS 70<<locked>>92%48,472 psi86%2858 fps99.1%
Rottweil R 902<<locked>>82%49,095 psi87%2703 fps100%
Rottweil R 903<<locked>>86%48,095 psi85%2740 fps100%
Rottweil R 905<<locked>>98%49,153 psi87%2818 fps96.1%
Rottweil R 907<<locked>>88%48,298 psi85%2720 fps96.7%
Shooters World Long Rifle<<locked>>90%49,661 psi88%2746 fps98.7%
Shooters World Precision<<locked>>84%50,169 psi89%2743 fps100%
Shooters World SW4350<<locked>>92%50,444 psi89%2782 fps97.9%
SNPE Vectan SP 11<<locked>>86%49,705 psi88%2799 fps99.9%
SNPE Vectan SP 9<<locked>>82%51,024 psi90%2776 fps99.9%
SNPE Vectan Tubal 5000<<locked>>86%50,009 psi88%2651 fps100%
SNPE Vectan Tubal 7000<<locked>>90%49,168 psi87%2694 fps97.5%
SNPE Vectan Tubal 8000<<locked>>98%48,689 psi86%2815 fps96%
Somchem S355<<locked>>86%48,617 psi86%2740 fps100%
Somchem S365<<locked>>96%50,444 psi89%2861 fps100%
Somchem S385<<locked>>98%49,951 psi88%2802 fps97.1%
Vihtavuori N135<<locked>>82%48,820 psi86%2671 fps100%
Vihtavuori N140<<locked>>82%49,429 psi87%2687 fps100%
Vihtavuori N150<<locked>>88%49,617 psi88%2720 fps100%
Vihtavuori N160<<locked>>92%50,850 psi90%2802 fps99.5%
Vihtavuori N540<<locked>>84%50,850 psi90%2730 fps100%
Vihtavuori N550<<locked>>92%50,082 psi89%2805 fps99.4%
Vihtavuori N555ᴾ<<locked>>100%49,559 psi88%2858 fps99.8%
Winchester 6.5 StaBALL<<locked>>92%50,444 psi89%2772 fps100%
Winchester 760<<locked>>90%48,791 psi86%2808 fps97.5%
Winchester StaBALL HDᴾ<<locked>>100%39,813 psi70%2805 fps100%
Winchester StaBALL Match<<locked>>82%50,981 psi90%2782 fps100%
Winchester Supreme 780ᴾ<<locked>>100%50,096 psi89%2792 fps95.9%

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%46,441 psi82%2638 fps100%
Accurate 2700<<locked>>80%45,034 psi80%2621 fps95.7%
Accurate 3100<<locked>>94%38,363 psi68%2585 fps95.8%
Accurate 4064<<locked>>80%43,961 psi78%2638 fps100%
Accurate 4350<<locked>>80%32,663 psi58%2470 fps95.6%
ADI AR 2208<<locked>>80%42,047 psi74%2605 fps98.8%
ADI AR 2209<<locked>>96%47,805 psi85%2789 fps95.3%
Alliant Power Pro 2000-MR<<locked>>80%45,556 psi81%2802 fps99.4%
Alliant Reloder- TS 15.5<<locked>>80%42,090 psi74%2628 fps99.7%
Alliant Reloder-15<<locked>>80%44,933 psi79%2690 fps99.3%
Alliant Reloder-16<<locked>>80%32,605 psi58%2480 fps95.7%
Alliant Reloder-17<<locked>>80%36,666 psi65%2612 fps98.7%
Alliant Reloder-19<<locked>>96%47,210 psi83%2782 fps95.4%
Alliant Reloder-23<<locked>>86%28,674 psi51%2398 fps95.6%
Alliant Reloder-25<<locked>>98%36,637 psi65%2621 fps95.5%
Alliant Reloder-2647.3 gr90%35,114 psi62%2631 fps96%
Bofors RP3<<locked>>80%42,163 psi75%2638 fps99.7%
Bofors RP7<<locked>>84%42,409 psi75%2605 fps95.2%
Hodgdon H380<<locked>>80%42,699 psi75%2641 fps98.1%
Hodgdon H414<<locked>>84%39,972 psi71%2638 fps95.1%
Hodgdon H4350<<locked>>86%46,021 psi81%2713 fps95.4%
Hodgdon Hybrid 100V<<locked>>80%30,211 psi53%2388 fps96.6%
Hodgdon LEVERevolution<<locked>>80%46,311 psi82%2743 fps100%
Hodgdon Superformance46.7 gr86%42,119 psi74%2707 fps95.2%
Hodgdon TrailBoss<<locked>>80%26,861 psi47%1568 fps100%
Hodgdon VARGET<<locked>>80%47,776 psi84%2713 fps99.9%
IMR 4064<<locked>>80%44,208 psi78%2638 fps99.3%
IMR 4166 Enduron<<locked>>80%46,427 psi82%2661 fps96.9%
IMR 4350<<locked>>88%42,859 psi76%2638 fps95.3%
IMR 4451 Enduron<<locked>>82%41,321 psi73%2585 fps95.4%
IMR 4831<<locked>>80%31,778 psi56%2431 fps95.3%
IMR 4895<<locked>>80%46,050 psi81%2720 fps99.7%
Lovex S062<<locked>>80%44,324 psi78%2641 fps99.9%
Lovex S065<<locked>>80%36,492 psi65%2487 fps95.4%
Lovex S070<<locked>>84%39,436 psi70%2569 fps95.2%
Lovex S071<<locked>>98%36,521 psi65%2546 fps95.1%
Norma 203B<<locked>>80%44,280 psi78%2680 fps99.5%
Norma MRP<<locked>>94%40,596 psi72%2726 fps95.1%
Norma URP<<locked>>80%32,880 psi58%2470 fps95.5%
Ramshot Big Game<<locked>>80%44,338 psi78%2700 fps99.4%
Ramshot Hunter<<locked>>86%39,146 psi69%2628 fps95.9%
ReloadSwiss RS 14<<locked>>80%27,137 psi48%1601 fps100%
ReloadSwiss RS 50<<locked>>80%42,815 psi76%2625 fps96.6%
ReloadSwiss RS 60<<locked>>80%39,030 psi69%2677 fps100%
ReloadSwiss RS 62<<locked>>80%32,401 psi57%2484 fps95%
ReloadSwiss RS 7042.7 gr82%34,301 psi61%2543 fps95%
Rottweil R 902<<locked>>80%45,992 psi81%2654 fps100%
Rottweil R 903<<locked>>80%39,552 psi70%2579 fps99.3%
Rottweil R 905<<locked>>96%45,905 psi81%2759 fps95.2%
Rottweil R 907<<locked>>84%42,409 psi75%2605 fps95.2%
Shooters World Long Rifle<<locked>>80%36,492 psi65%2487 fps95.4%
Shooters World Precision<<locked>>80%44,324 psi78%2641 fps99.9%
Shooters World SW4350<<locked>>84%39,436 psi70%2569 fps95.2%
SNPE Vectan SP 11<<locked>>80%40,538 psi72%2631 fps98.9%
SNPE Vectan SP 9<<locked>>80%47,834 psi85%2723 fps99.8%
SNPE Vectan Tubal 5000<<locked>>80%41,466 psi73%2513 fps100%
SNPE Vectan Tubal 7000<<locked>>84%40,611 psi72%2536 fps95.4%
SNPE Vectan Tubal 8000<<locked>>96%45,469 psi80%2756 fps95.1%
Somchem S355<<locked>>80%40,190 psi71%2585 fps99.2%
Somchem S365<<locked>>80%29,501 psi52%2425 fps97.8%
Somchem S385<<locked>>94%43,772 psi77%2690 fps95.6%
Vihtavuori N135<<locked>>80%45,905 psi81%2628 fps100%
Vihtavuori N140<<locked>>80%46,296 psi82%2638 fps100%
Vihtavuori N150<<locked>>80%38,232 psi68%2516 fps99.6%
Vihtavuori N160<<locked>>80%34,156 psi60%2474 fps96%
Vihtavuori N540<<locked>>80%44,730 psi79%2631 fps100%
Vihtavuori N550<<locked>>80%33,823 psi60%2477 fps95.6%
Vihtavuori N555<<locked>>86%31,241 psi55%2477 fps95.7%
Winchester 6.5 StaBALL<<locked>>80%33,750 psi60%2451 fps98.1%
Winchester 760<<locked>>84%39,972 psi71%2638 fps95.1%
Winchester StaBALL HD<<locked>>90%28,805 psi51%2484 fps96.4%
Winchester StaBALL Match<<locked>>80%47,761 psi84%2730 fps99.9%
Winchester Supreme 780<<locked>>98%46,731 psi83%2733 fps95.1%

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 90 powders for 6.5 x 57 loaded with the .264 | 125gr | Hasler ARIETE. Alliant Reloder-26 delivers the highest muzzle velocity at 2,959 fps; across all powders the maximum-charge window runs from 1,755 fps to 2,959 fps. Accurate 3100 gives the best case fill at 100 %, and 90 of the 90 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (390 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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 | 125gr | Hasler ARIETE they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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