Load data for .264 Win. Mag. + .264 | 140gr | Hornady InterLock

.264 Win. Mag. cartridge drawing
Hornady logo

Load Specifications

Bullet Manufacturer:Hornady
Bullet Weight:140 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Case Length (l3):2.5"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:82 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:26"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:10.0

Load data in caliber .264 Win. Mag. with .264 | 140gr | Hornady InterLock bullet and 69 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and ReloadSwiss RS 80.

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: 26"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>90%55,463 psi89%2923 fps100%
Accurate 4350<<locked>>82%56,376 psi90%2946 fps100%
Accurate High Country<<locked>>86%53,272 psi85%3022 fps99.6%
Accurate MAGPRO<<locked>>88%54,114 psi87%3025 fps99%
ADI AR 2209<<locked>>86%53,505 psi86%2956 fps99.9%
ADI AR 2213<<locked>>90%55,143 psi88%3025 fps99.6%
ADI AR 2217<<locked>>98%53,417 psi86%2995 fps99.7%
ADI AR 2218ᴾ<<locked>>100%49,603 psi80%3025 fps96.5%
ADI AR 2225ᴾ<<locked>>100%51,474 psi83%3015 fps100%
Alliant Power Pro Varmint<<locked>>86%53,708 psi86%2953 fps99.9%
Alliant Power Pro Varmint<<locked>>86%53,708 psi86%2953 fps99.9%
Alliant Reloder-16<<locked>>82%53,708 psi86%2946 fps100%
Alliant Reloder-19<<locked>>86%53,113 psi85%2946 fps99.9%
Alliant Reloder-22<<locked>>90%55,535 psi89%3022 fps100%
Alliant Reloder-23<<locked>>90%53,563 psi86%2930 fps100%
Alliant Reloder-25<<locked>>94%53,200 psi85%2999 fps100%
Alliant Reloder-26<<locked>>86%53,722 psi86%3018 fps100%
Alliant Reloder-33ᴾ<<locked>>100%54,520 psi87%3087 fps97.8%
Baschieri & Pellagri 109<<locked>>92%55,985 psi90%2986 fps98%
Bofors RP15<<locked>>92%54,737 psi88%3009 fps99.9%
Bofors RP30<<locked>>96%52,924 psi85%3009 fps99.7%
Bofors RP5<<locked>>90%55,535 psi89%3022 fps100%
Hodgdon H1000<<locked>>96%54,940 psi88%3022 fps100%
Hodgdon H4831<<locked>>88%54,621 psi88%2956 fps99.2%
Hodgdon H4831 SC<<locked>>88%53,577 psi86%2940 fps99.1%
Hodgdon Hybrid 100V<<locked>>84%53,795 psi86%2864 fps100%
Hodgdon Retumbo<<locked>>96%55,869 psi90%3143 fps100%
Hodgdon TrailBossᴾ<<locked>>100%37,434 psi60%1867 fps100%
IMR 4350<<locked>>84%56,043 psi90%2933 fps100%
IMR 4831<<locked>>84%56,376 psi90%2930 fps100%
IMR 4955 Enduron<<locked>>88%55,274 psi89%2936 fps99.4%
IMR 7828 SSC<<locked>>90%53,374 psi86%3005 fps99.5%
IMR 8133 Enduronᴾ<<locked>>100%47,166 psi76%2930 fps99%
Lovex S065<<locked>>82%56,275 psi90%2907 fps100%
Lovex S070<<locked>>82%54,665 psi88%2907 fps100%
Lovex S071<<locked>>94%53,621 psi86%2894 fps100%
Norma 204<<locked>>82%53,534 psi86%2933 fps99.8%
Norma 217ᴾ<<locked>>100%47,703 psi76%2953 fps100%
Norma MRP<<locked>>88%55,535 psi89%3041 fps100%
Norma URP<<locked>>82%54,404 psi87%2923 fps100%
Ramshot Grand<<locked>>90%54,302 psi87%3028 fps99.8%
Ramshot Hunter<<locked>>82%53,476 psi86%2933 fps100%
Ramshot Magnum<<locked>>92%52,634 psi84%2956 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%38,479 psi62%1913 fps100%
ReloadSwiss RS 62<<locked>>82%56,275 psi90%2966 fps100%
ReloadSwiss RS 70<<locked>>82%54,766 psi88%2995 fps100%
ReloadSwiss RS 76<<locked>>94%52,359 psi84%3068 fps100%
ReloadSwiss RS 80<<locked>>98%55,956 psi90%3094 fps99.4%
Rottweil R 904<<locked>>86%54,375 psi87%2927 fps99.5%
Rottweil R 905<<locked>>88%56,275 psi90%2992 fps100%
Shooters World Long Rifle<<locked>>82%56,275 psi90%2907 fps100%
Shooters World SW4350<<locked>>82%54,665 psi88%2907 fps100%
SNPE Vectan Tubal 7000<<locked>>82%55,390 psi89%2861 fps100%
SNPE Vectan Tubal 8000<<locked>>88%55,912 psi90%2989 fps100%
Somchem S361<<locked>>86%55,550 psi89%2917 fps99.3%
Somchem S365<<locked>>84%55,564 psi89%2927 fps100%
Somchem S385<<locked>>86%53,084 psi85%2907 fps100%
Vihtavuori N160<<locked>>82%56,173 psi90%2917 fps100%
Vihtavuori N165<<locked>>90%52,837 psi85%2890 fps100%
Vihtavuori N170<<locked>>96%55,332 psi89%2963 fps96.2%
Vihtavuori N550<<locked>>82%55,361 psi89%2920 fps100%
Vihtavuori N555<<locked>>88%55,593 psi89%2956 fps100%
Vihtavuori N560<<locked>>88%55,143 psi88%3038 fps99.4%
Vihtavuori N565<<locked>>94%55,492 psi89%3028 fps99.6%
Vihtavuori N568<<locked>>96%52,620 psi84%3031 fps98.6%
Vihtavuori N570<<locked>>98%53,606 psi86%3091 fps97.2%
Winchester 6.5 StaBALL<<locked>>82%55,376 psi89%2864 fps100%
Winchester StaBALL HD<<locked>>92%56,217 psi90%3071 fps100%
Winchester Supreme 780<<locked>>88%52,707 psi85%2900 fps99.8%

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

Start Load - Barrel Length: 26"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>80%39,769 psi64%2648 fps99.6%
Accurate 4350<<locked>>80%52,620 psi84%2887 fps100%
Accurate High Country<<locked>>80%43,381 psi70%2831 fps98%
Accurate MAGPRO<<locked>>80%40,814 psi65%2766 fps96%
ADI AR 2209<<locked>>80%43,743 psi70%2779 fps98.8%
ADI AR 2213<<locked>>80%39,117 psi63%2717 fps96.7%
ADI AR 2217<<locked>>86%35,679 psi57%2631 fps95.8%
ADI AR 2218<<locked>>98%46,267 psi74%2949 fps95.3%
ADI AR 2225<<locked>>82%28,456 psi46%2474 fps95.6%
Alliant Power Pro Varmint<<locked>>80%44,135 psi71%2779 fps98.9%
Alliant Power Pro Varmint<<locked>>80%44,135 psi71%2779 fps98.9%
Alliant Reloder-16<<locked>>80%50,372 psi81%2894 fps100%
Alliant Reloder-19<<locked>>80%43,714 psi70%2772 fps98.8%
Alliant Reloder-22<<locked>>80%39,668 psi64%2723 fps98.1%
Alliant Reloder-23<<locked>>80%38,421 psi62%2671 fps100%
Alliant Reloder-25<<locked>>80%33,185 psi53%2598 fps99.1%
Alliant Reloder-26<<locked>>80%42,960 psi69%2831 fps100%
Alliant Reloder-33<<locked>>96%46,833 psi75%2946 fps95.9%
Baschieri & Pellagri 109<<locked>>86%46,499 psi75%2808 fps95.8%
Bofors RP15<<locked>>80%36,927 psi59%2657 fps97.2%
Bofors RP30<<locked>>84%35,172 psi56%2644 fps95.9%
Bofors RP5<<locked>>80%39,668 psi64%2723 fps98.1%
Hodgdon H1000<<locked>>82%33,866 psi54%2585 fps95.7%
Hodgdon H4831<<locked>>80%41,582 psi67%2713 fps96.7%
Hodgdon H4831 SC<<locked>>80%40,973 psi66%2703 fps96.6%
Hodgdon Hybrid 100V<<locked>>80%47,355 psi76%2766 fps100%
Hodgdon Retumbo55 gr80%32,416 psi52%2628 fps96.3%
Hodgdon TrailBoss<<locked>>80%28,094 psi45%1670 fps100%
IMR 4350<<locked>>80%49,458 psi79%2822 fps99.9%
IMR 4831<<locked>>80%49,617 psi80%2828 fps100%
IMR 4955 Enduron<<locked>>80%43,033 psi69%2713 fps97.3%
IMR 7828 SSC<<locked>>80%37,768 psi61%2690 fps96.3%
IMR 8133 Enduron<<locked>>90%33,634 psi54%2625 fps95%
Lovex S065<<locked>>80%53,026 psi85%2854 fps100%
Lovex S070<<locked>>80%51,459 psi83%2854 fps100%
Lovex S071<<locked>>80%34,243 psi55%2523 fps98.6%
Norma 204<<locked>>80%50,082 psi80%2877 fps99.6%
Norma 217<<locked>>86%29,486 psi47%2530 fps95.5%
Norma MRP<<locked>>80%41,945 psi67%2795 fps99.5%
Norma URP<<locked>>80%51,140 psi82%2871 fps100%
Ramshot Grand<<locked>>80%37,550 psi60%2700 fps96.7%
Ramshot Hunter<<locked>>80%50,082 psi80%2881 fps100%
Ramshot Magnum<<locked>>80%33,576 psi54%2579 fps97.1%
ReloadSwiss RS 14<<locked>>80%28,877 psi46%1713 fps100%
ReloadSwiss RS 62<<locked>>80%52,634 psi84%2910 fps100%
ReloadSwiss RS 70<<locked>>80%51,111 psi82%2936 fps100%
ReloadSwiss RS 7658.8 gr80%31,357 psi50%2595 fps97.1%
ReloadSwiss RS 8065.3 gr88%38,305 psi61%2753 fps95.4%
Rottweil R 904<<locked>>80%44,744 psi72%2753 fps98.2%
Rottweil R 905<<locked>>80%43,265 psi69%2762 fps98.9%
Shooters World Long Rifle<<locked>>80%53,026 psi85%2854 fps100%
Shooters World SW4350<<locked>>80%51,459 psi83%2854 fps100%
SNPE Vectan Tubal 7000<<locked>>80%51,880 psi83%2805 fps100%
SNPE Vectan Tubal 8000<<locked>>80%42,931 psi69%2756 fps98.8%
Somchem S361<<locked>>80%45,701 psi73%2746 fps97.8%
Somchem S365<<locked>>80%48,646 psi78%2825 fps100%
Somchem S385<<locked>>80%43,714 psi70%2740 fps99.4%
Vihtavuori N160<<locked>>80%52,562 psi84%2861 fps100%
Vihtavuori N165<<locked>>80%38,058 psi61%2612 fps98.1%
Vihtavuori N170<<locked>>94%51,764 psi83%2900 fps95.4%
Vihtavuori N550<<locked>>80%51,866 psi83%2867 fps100%
Vihtavuori N555<<locked>>80%42,786 psi69%2746 fps100%
Vihtavuori N560<<locked>>80%41,829 psi67%2785 fps97%
Vihtavuori N565<<locked>>82%37,014 psi59%2664 fps95.7%
Vihtavuori N568<<locked>>88%39,610 psi64%2769 fps95.2%
Vihtavuori N570<<locked>>94%46,557 psi75%2956 fps95.4%
Winchester 6.5 StaBALL<<locked>>80%51,634 psi83%2812 fps100%
Winchester StaBALL HD<<locked>>80%35,607 psi57%2720 fps100%
Winchester Supreme 780<<locked>>80%40,001 psi64%2664 fps98.1%

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 69 powders for .264 Win. Mag. loaded with the .264 | 140gr | Hornady InterLock. Hodgdon Retumbo delivers the highest muzzle velocity at 3,143 fps; across all powders the maximum-charge window runs from 1,867 fps to 3,143 fps. ADI AR 2218 gives the best case fill at 100 %, and 69 of the 69 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-33 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. Hodgdon Retumbo, ReloadSwiss RS 76, ReloadSwiss RS 80 rank at the top here: for .264 Win. Mag. with the .264 | 140gr | Hornady InterLock 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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