Load data for .264 Win. Mag. + .264 | 120gr | Hornady ECX

.264 Win. Mag. cartridge drawing
Hornady logo

Load Specifications

Bullet Manufacturer:Hornady
Bullet Weight:120 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:1:9.0

Load data in caliber .264 Win. Mag. with .264 | 120gr | Hornady ECX bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate High Country, Winchester StaBALL HD and Hodgdon Retumbo.

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>>94%56,391 psi90%3140 fps100%
Accurate 4350<<locked>>84%53,708 psi86%3120 fps100%
Accurate High Country<<locked>>90%54,244 psi87%3241 fps98.8%
Accurate MAGPRO<<locked>>92%55,288 psi89%3245 fps97.9%
ADI AR 2209<<locked>>90%54,578 psi88%3176 fps99.3%
ADI AR 2213<<locked>>94%56,159 psi90%3245 fps98.9%
ADI AR 2217ᴾ<<locked>>100%50,531 psi81%3133 fps98.3%
ADI AR 2225ᴾ<<locked>>100%45,136 psi72%3091 fps99.6%
Alliant Power Pro Varmint<<locked>>90%54,998 psi88%3176 fps99.4%
Alliant Reloder-16<<locked>>86%54,824 psi88%3186 fps100%
Alliant Reloder-17<<locked>>82%55,738 psi89%3192 fps100%
Alliant Reloder-19<<locked>>90%54,346 psi87%3169 fps99.3%
Alliant Reloder-22<<locked>>94%56,246 psi90%3238 fps99.6%
Alliant Reloder-23<<locked>>94%53,882 psi86%3153 fps100%
Alliant Reloder-25<<locked>>98%53,272 psi85%3215 fps100%
Alliant Reloder-26<<locked>>90%54,157 psi87%3245 fps100%
Baschieri & Pellagri 109<<locked>>94%54,505 psi87%3136 fps96%
Bofors RP15<<locked>>96%55,419 psi89%3225 fps99.5%
Bofors RP30ᴾ<<locked>>100%53,113 psi85%3215 fps98.9%
Bofors RP5<<locked>>94%56,246 psi90%3238 fps99.6%
Bofors RP7<<locked>>84%56,101 psi90%3123 fps99.8%
Hodgdon H1000ᴾ<<locked>>100%55,709 psi89%3228 fps99.5%
Hodgdon H414<<locked>>84%55,608 psi89%3182 fps99.9%
Hodgdon H4350<<locked>>82%54,447 psi87%3130 fps99.4%
Hodgdon H4831<<locked>>92%56,246 psi90%3182 fps98.4%
Hodgdon H4831 SC<<locked>>92%54,897 psi88%3159 fps98.1%
Hodgdon Hybrid 100V<<locked>>88%54,984 psi88%3097 fps100%
Hodgdon Retumboᴾ<<locked>>100%55,825 psi90%3353 fps100%
Hodgdon Superformance<<locked>>84%55,970 psi90%3212 fps99.9%
Hodgdon TrailBossᴾ<<locked>>100%37,101 psi59%2005 fps100%
IMR 4350<<locked>>86%54,244 psi87%3107 fps99.7%
IMR 4451 Enduron<<locked>>82%54,012 psi87%3087 fps99.8%
IMR 4831<<locked>>86%54,143 psi87%3114 fps100%
IMR 4955 Enduron<<locked>>90%53,461 psi86%3100 fps98%
IMR 7828 SSC<<locked>>94%54,114 psi87%3222 fps98.7%
Lovex S065<<locked>>84%54,737 psi88%3091 fps100%
Lovex S070<<locked>>84%52,939 psi85%3084 fps99.9%
Lovex S071<<locked>>98%53,969 psi87%3104 fps100%
Norma 204<<locked>>86%55,317 psi89%3166 fps99.3%
Norma 217ᴾ<<locked>>100%40,828 psi65%3009 fps98.2%
Norma MRP<<locked>>92%56,260 psi90%3264 fps100%
Norma URP<<locked>>86%55,970 psi90%3163 fps100%
Ramshot Grand<<locked>>94%54,940 psi88%3245 fps99.1%
Ramshot Hunter<<locked>>86%54,926 psi88%3166 fps100%
Ramshot Magnum<<locked>>96%53,388 psi86%3169 fps99.7%
ReloadSwiss RS 14ᴾ<<locked>>100%38,043 psi61%2054 fps100%
ReloadSwiss RS 62<<locked>>84%53,882 psi86%3146 fps100%
ReloadSwiss RS 70<<locked>>86%56,072 psi90%3235 fps100%
ReloadSwiss RS 76<<locked>>98%52,823 psi85%3281 fps100%
ReloadSwiss RS 80ᴾ<<locked>>100%51,851 psi83%3225 fps97.6%
Rottweil R 904<<locked>>90%55,811 psi89%3150 fps98.8%
Rottweil R 905<<locked>>90%53,780 psi86%3156 fps99.3%
Rottweil R 907<<locked>>84%56,101 psi90%3123 fps99.8%
Shooters World Long Rifle<<locked>>84%54,737 psi88%3091 fps100%
Shooters World SW4350<<locked>>84%52,939 psi85%3084 fps99.9%
SNPE Vectan Tubal 7000<<locked>>84%53,954 psi87%3038 fps99.9%
SNPE Vectan Tubal 8000<<locked>>90%53,345 psi86%3150 fps99.3%
Somchem S361<<locked>>88%53,940 psi86%3077 fps97.9%
Somchem S365<<locked>>86%52,852 psi85%3107 fps100%
Somchem S385<<locked>>90%54,433 psi87%3130 fps99.7%
Vihtavuori N150<<locked>>82%54,882 psi88%3031 fps100%
Vihtavuori N160<<locked>>84%53,911 psi86%3094 fps100%
Vihtavuori N165<<locked>>94%53,853 psi86%3104 fps99.6%
Vihtavuori N550<<locked>>84%53,330 psi86%3100 fps100%
Vihtavuori N555<<locked>>92%56,115 psi90%3182 fps100%
Vihtavuori N560<<locked>>92%56,028 psi90%3261 fps98.6%
Vihtavuori N565<<locked>>98%55,999 psi90%3235 fps98.7%
Vihtavuori N568ᴾ<<locked>>100%52,808 psi85%3228 fps97.2%
Winchester 6.5 StaBALL<<locked>>84%53,635 psi86%3048 fps100%
Winchester 760<<locked>>84%55,608 psi89%3182 fps99.9%
Winchester StaBALL HD<<locked>>96%55,883 psi90%3297 fps100%
Winchester Supreme 780<<locked>>92%54,143 psi87%3120 fps99.3%

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%35,128 psi56%2726 fps97.5%
Accurate 4350<<locked>>80%46,963 psi75%3002 fps100%
Accurate High Country58.9 gr82%40,785 psi65%2966 fps95.6%
Accurate MAGPRO<<locked>>86%44,599 psi72%3038 fps95.4%
ADI AR 2209<<locked>>80%39,102 psi63%2861 fps96.1%
ADI AR 2213<<locked>>86%42,859 psi69%2979 fps96%
ADI AR 2217<<locked>>94%41,220 psi66%2933 fps95.8%
ADI AR 2225<<locked>>90%32,532 psi52%2759 fps95.5%
Alliant Power Pro Varmint<<locked>>80%39,494 psi63%2864 fps96.2%
Alliant Reloder-16<<locked>>80%44,947 psi72%3009 fps100%
Alliant Reloder-17<<locked>>80%52,054 psi83%3133 fps100%
Alliant Reloder-19<<locked>>80%39,131 psi63%2858 fps96.1%
Alliant Reloder-22<<locked>>82%37,521 psi60%2858 fps95.7%
Alliant Reloder-23<<locked>>80%33,678 psi54%2756 fps99.7%
Alliant Reloder-25<<locked>>80%29,327 psi47%2651 fps95.8%
Alliant Reloder-26<<locked>>80%36,970 psi59%2904 fps99.2%
Baschieri & Pellagri 109<<locked>>92%51,140 psi82%3074 fps95.1%
Bofors RP15<<locked>>84%37,217 psi60%2848 fps95.4%
Bofors RP30<<locked>>92%40,335 psi65%2953 fps95.9%
Bofors RP5<<locked>>82%37,521 psi60%2858 fps95.7%
Bofors RP7<<locked>>80%49,472 psi79%3005 fps99.2%
Hodgdon H1000<<locked>>90%39,523 psi63%2897 fps95.9%
Hodgdon H414<<locked>>80%48,472 psi78%3051 fps99.4%
Hodgdon H4350<<locked>>80%51,024 psi82%3071 fps99%
Hodgdon H4831<<locked>>84%42,801 psi69%2923 fps95.3%
Hodgdon H4831 SC<<locked>>84%41,959 psi67%2904 fps95%
Hodgdon Hybrid 100V<<locked>>80%42,337 psi68%2881 fps100%
Hodgdon Retumbo59.5 gr86%34,809 psi56%2864 fps95.1%
Hodgdon Superformance<<locked>>80%48,385 psi78%3081 fps99.3%
Hodgdon TrailBoss<<locked>>80%27,862 psi45%1798 fps100%
IMR 4350<<locked>>80%44,860 psi72%2930 fps98.6%
IMR 4451 Enduron<<locked>>80%50,662 psi81%3031 fps99.6%
IMR 4831<<locked>>80%44,512 psi71%2940 fps100%
IMR 4955 Enduron<<locked>>82%41,626 psi67%2861 fps95.1%
IMR 7828 SSC<<locked>>86%41,220 psi66%2956 fps95.5%
Lovex S065<<locked>>80%48,370 psi78%2976 fps99.9%
Lovex S070<<locked>>80%46,702 psi75%2966 fps99.3%
Lovex S071<<locked>>80%30,211 psi48%2592 fps95.6%
Norma 204<<locked>>80%44,976 psi72%2972 fps97.6%
Norma 217<<locked>>94%33,402 psi54%2815 fps95.4%
Norma MRP<<locked>>80%36,666 psi59%2864 fps96.9%
Norma URP<<locked>>80%45,963 psi74%2989 fps100%
Ramshot Grand<<locked>>86%40,973 psi66%2963 fps95.9%
Ramshot Hunter<<locked>>80%44,846 psi72%2982 fps99.4%
Ramshot Magnum<<locked>>84%34,113 psi55%2762 fps95.3%
ReloadSwiss RS 14<<locked>>80%28,369 psi45%1837 fps100%
ReloadSwiss RS 62<<locked>>80%46,876 psi75%3022 fps100%
ReloadSwiss RS 70<<locked>>80%45,136 psi72%3041 fps99.9%
ReloadSwiss RS 76<<locked>>86%34,113 psi55%2841 fps96.2%
ReloadSwiss RS 80<<locked>>96%44,454 psi71%3074 fps95.6%
Rottweil R 904<<locked>>80%40,393 psi65%2841 fps95.3%
Rottweil R 905<<locked>>80%38,493 psi62%2841 fps96.1%
Rottweil R 907<<locked>>80%49,472 psi79%3005 fps99.2%
Shooters World Long Rifle<<locked>>80%48,370 psi78%2976 fps99.9%
Shooters World SW4350<<locked>>80%46,702 psi75%2966 fps99.3%
SNPE Vectan Tubal 7000<<locked>>80%47,282 psi76%2920 fps99.3%
SNPE Vectan Tubal 8000<<locked>>80%38,174 psi61%2838 fps96%
Somchem S361<<locked>>82%44,121 psi71%2890 fps95.7%
Somchem S365<<locked>>80%43,033 psi69%2940 fps100%
Somchem S385<<locked>>80%39,073 psi63%2825 fps97.2%
Vihtavuori N150<<locked>>80%51,329 psi82%2979 fps100%
Vihtavuori N160<<locked>>80%47,369 psi76%2979 fps100%
Vihtavuori N165<<locked>>82%36,245 psi58%2746 fps95.9%
Vihtavuori N550<<locked>>80%46,804 psi75%2982 fps100%
Vihtavuori N555<<locked>>80%37,739 psi61%2838 fps99.6%
Vihtavuori N560<<locked>>84%42,453 psi68%2992 fps95.4%
Vihtavuori N565<<locked>>90%42,685 psi68%2976 fps95.8%
Vihtavuori N568<<locked>>96%45,643 psi73%3087 fps95.3%
Winchester 6.5 StaBALL<<locked>>80%46,572 psi75%2933 fps100%
Winchester 760<<locked>>80%48,689 psi78%3054 fps99.5%
Winchester StaBALL HD56.9 gr80%29,994 psi48%2772 fps99.8%
Winchester Supreme 780<<locked>>80%35,752 psi57%2743 fps95%

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 72 powders for .264 Win. Mag. loaded with the .264 | 120gr | Hornady ECX. Hodgdon Retumbo delivers the highest muzzle velocity at 3,353 fps; across all powders the maximum-charge window runs from 2,005 fps to 3,353 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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. Accurate High Country, Winchester StaBALL HD, Hodgdon Retumbo rank at the top here: for .264 Win. Mag. with the .264 | 120gr | Hornady ECX 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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