Load data for .264 Win. Mag. + .264 | 126gr | Lehigh Defense Controlled Chaos

.264 Win. Mag. cartridge drawing
Lehigh Defense logo

Load Specifications

Bullet Manufacturer:Lehigh Defense
Bullet Weight:126 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:1:8.5

Load data in caliber .264 Win. Mag. with .264 | 126gr | Lehigh Defense Controlled Chaos bullet and 71 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 Vihtavuori N560.

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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?

Max Load - Barrel Length: 26"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>92%54,781 psi88%3051 fps100%
Accurate 4350<<locked>>84%55,709 psi89%3084 fps100%
Accurate MAGPRO<<locked>>90%53,345 psi86%3150 fps98%
ADI AR 2209<<locked>>88%52,823 psi85%3084 fps99.4%
ADI AR 2213<<locked>>92%54,476 psi87%3153 fps99%
ADI AR 2217ᴾ<<locked>>100%52,373 psi84%3110 fps99%
ADI AR 2225ᴾ<<locked>>100%46,891 psi75%3068 fps99.9%
Alliant Power Pro Varmint<<locked>>88%53,055 psi85%3081 fps99.4%
Alliant Reloder-16<<locked>>84%53,069 psi85%3087 fps100%
Alliant Reloder-19<<locked>>90%56,014 psi90%3133 fps99.7%
Alliant Reloder-22<<locked>>92%54,694 psi88%3150 fps99.7%
Alliant Reloder-23<<locked>>94%55,825 psi90%3114 fps100%
Alliant Reloder-25<<locked>>98%55,376 psi89%3179 fps100%
Alliant Reloder-26<<locked>>88%52,591 psi84%3150 fps100%
Baschieri & Pellagri 109<<locked>>94%55,753 psi89%3104 fps96.9%
Bofors RP15<<locked>>94%53,650 psi86%3130 fps99.5%
Bofors RP30ᴾ<<locked>>100%55,303 psi89%3186 fps99.5%
Bofors RP5<<locked>>92%54,694 psi88%3150 fps99.7%
Bofors RP7<<locked>>82%54,157 psi87%3025 fps99.8%
Hodgdon H1000<<locked>>98%53,824 psi86%3136 fps99.5%
Hodgdon H414<<locked>>82%53,606 psi86%3081 fps100%
Hodgdon H4350<<locked>>82%55,898 psi90%3091 fps99.8%
Hodgdon H4831<<locked>>90%54,215 psi87%3084 fps98.4%
Hodgdon H4831 SC<<locked>>90%53,156 psi85%3068 fps98.3%
Hodgdon Hybrid 100V<<locked>>86%53,185 psi85%3002 fps100%
Hodgdon Retumbo<<locked>>98%54,201 psi87%3258 fps100%
Hodgdon Superformance<<locked>>82%53,809 psi86%3114 fps99.9%
Hodgdon TrailBossᴾ<<locked>>100%37,231 psi60%1962 fps100%
IMR 4350<<locked>>86%55,724 psi89%3064 fps99.9%
IMR 4451 Enduron<<locked>>82%55,317 psi89%3048 fps100%
IMR 4831<<locked>>86%56,043 psi90%3074 fps100%
IMR 4955 Enduron<<locked>>90%55,187 psi88%3068 fps98.7%
IMR 7828 SSC<<locked>>94%56,072 psi90%3189 fps99.2%
IMR 8133 Enduronᴾ<<locked>>100%42,511 psi68%2966 fps97.1%
Lovex S065<<locked>>84%56,130 psi90%3045 fps100%
Lovex S070<<locked>>84%54,607 psi88%3048 fps100%
Lovex S071<<locked>>98%55,869 psi90%3068 fps100%
Norma 204<<locked>>84%53,272 psi85%3068 fps99.3%
Norma 217ᴾ<<locked>>100%42,656 psi68%2992 fps99%
Norma MRP<<locked>>90%54,534 psi87%3169 fps100%
Norma URP<<locked>>84%54,172 psi87%3064 fps100%
Ramshot Grand<<locked>>92%53,113 psi85%3150 fps99.1%
Ramshot Hunter<<locked>>84%53,011 psi85%3071 fps100%
Ramshot Magnum<<locked>>96%55,608 psi89%3143 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%38,000 psi61%2005 fps100%
ReloadSwiss RS 62<<locked>>84%55,622 psi89%3104 fps100%
ReloadSwiss RS 70<<locked>>84%53,969 psi87%3133 fps100%
ReloadSwiss RS 76<<locked>>98%55,114 psi88%3258 fps100%
ReloadSwiss RS 80ᴾ<<locked>>100%54,375 psi87%3205 fps98.5%
Rottweil R 904<<locked>>88%53,998 psi87%3054 fps98.9%
Rottweil R 905<<locked>>90%55,492 psi89%3120 fps99.7%
Rottweil R 907<<locked>>82%54,157 psi87%3025 fps99.8%
Shooters World Long Rifle<<locked>>84%56,130 psi90%3045 fps100%
Shooters World SW4350<<locked>>84%54,607 psi88%3048 fps100%
SNPE Vectan Tubal 7000<<locked>>84%55,376 psi89%2999 fps100%
SNPE Vectan Tubal 8000<<locked>>90%55,071 psi88%3117 fps99.7%
Somchem S361<<locked>>88%55,521 psi89%3045 fps98.6%
Somchem S365<<locked>>86%54,607 psi88%3064 fps100%
Somchem S385<<locked>>90%56,188 psi90%3094 fps99.9%
Vihtavuori N150<<locked>>82%56,260 psi90%2986 fps100%
Vihtavuori N160<<locked>>84%55,753 psi89%3054 fps100%
Vihtavuori N165<<locked>>94%55,622 psi89%3071 fps99.9%
Vihtavuori N550<<locked>>84%54,853 psi88%3058 fps100%
Vihtavuori N555<<locked>>90%54,534 psi87%3091 fps100%
Vihtavuori N560<<locked>>90%54,215 psi87%3163 fps98.6%
Vihtavuori N565<<locked>>96%54,375 psi87%3143 fps98.9%
Vihtavuori N568ᴾ<<locked>>100%55,085 psi88%3205 fps98.1%
Winchester 6.5 StaBALL<<locked>>84%55,274 psi89%3005 fps100%
Winchester 760<<locked>>82%53,606 psi86%3081 fps100%
Winchester StaBALL HD<<locked>>94%54,056 psi87%3202 fps100%
Winchester Supreme 780<<locked>>92%55,999 psi90%3087 fps99.7%

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%36,347 psi58%2700 fps98.3%
Accurate 4350<<locked>>80%48,472 psi78%2963 fps100%
Accurate MAGPRO<<locked>>84%43,004 psi69%2943 fps95.5%
ADI AR 2209<<locked>>80%40,263 psi65%2835 fps97%
ADI AR 2213<<locked>>82%38,580 psi62%2822 fps95.1%
ADI AR 2217<<locked>>92%40,016 psi64%2851 fps96%
ADI AR 2225<<locked>>88%31,705 psi51%2684 fps95.9%
Alliant Power Pro Varmint<<locked>>80%40,727 psi65%2835 fps97.2%
Alliant Reloder-16<<locked>>80%46,383 psi74%2972 fps100%
Alliant Reloder-19<<locked>>80%40,350 psi65%2828 fps97.1%
Alliant Reloder-22<<locked>>80%36,216 psi58%2766 fps95.8%
Alliant Reloder-23<<locked>>80%35,085 psi56%2733 fps100%
Alliant Reloder-25<<locked>>80%30,313 psi49%2635 fps97%
Alliant Reloder-26<<locked>>80%38,754 psi62%2884 fps99.7%
Baschieri & Pellagri 109<<locked>>90%49,458 psi79%2986 fps95.3%
Bofors RP15<<locked>>82%36,143 psi58%2762 fps95.6%
Bofors RP30<<locked>>88%36,521 psi59%2802 fps95.1%
Bofors RP5<<locked>>80%36,216 psi58%2766 fps95.8%
Bofors RP7<<locked>>80%50,705 psi81%2966 fps99.6%
Hodgdon H1000<<locked>>88%38,145 psi61%2812 fps96%
Hodgdon H414<<locked>>80%50,140 psi80%3018 fps99.8%
Hodgdon H4350<<locked>>80%52,359 psi84%3031 fps99.5%
Hodgdon H4831<<locked>>82%41,220 psi66%2831 fps95.3%
Hodgdon H4831 SC<<locked>>82%40,422 psi65%2812 fps95.1%
Hodgdon Hybrid 100V<<locked>>80%43,903 psi70%2848 fps100%
Hodgdon Retumbo57.9 gr84%33,881 psi54%2785 fps95.4%
Hodgdon Superformance<<locked>>80%50,024 psi80%3048 fps99.7%
Hodgdon TrailBoss<<locked>>80%27,934 psi45%1755 fps100%
IMR 4350<<locked>>80%46,079 psi74%2894 fps99.1%
IMR 4451 Enduron<<locked>>80%52,112 psi84%2992 fps99.9%
IMR 4831<<locked>>80%46,093 psi74%2907 fps100%
IMR 4955 Enduron<<locked>>80%40,045 psi64%2769 fps95.2%
IMR 7828 SSC<<locked>>84%39,769 psi64%2864 fps95.7%
IMR 8133 Enduron<<locked>>96%37,144 psi60%2838 fps95.1%
Lovex S065<<locked>>80%49,792 psi80%2940 fps100%
Lovex S070<<locked>>80%47,964 psi77%2930 fps99.7%
Lovex S071<<locked>>80%31,430 psi50%2572 fps96.7%
Norma 204<<locked>>80%46,354 psi74%2940 fps98.3%
Norma 217<<locked>>92%32,503 psi52%2736 fps95.6%
Norma MRP<<locked>>80%38,058 psi61%2841 fps97.9%
Norma URP<<locked>>80%47,297 psi76%2946 fps100%
Ramshot Grand<<locked>>84%39,595 psi63%2874 fps96%
Ramshot Hunter<<locked>>80%46,224 psi74%2946 fps99.8%
Ramshot Magnum<<locked>>82%32,851 psi53%2674 fps95.4%
ReloadSwiss RS 14<<locked>>80%28,485 psi46%1795 fps100%
ReloadSwiss RS 62<<locked>>80%48,660 psi78%2989 fps100%
ReloadSwiss RS 70<<locked>>80%46,688 psi75%3009 fps100%
ReloadSwiss RS 7660.5 gr82%30,792 psi49%2684 fps95.1%
ReloadSwiss RS 80<<locked>>94%43,062 psi69%2989 fps95.8%
Rottweil R 904<<locked>>80%41,727 psi67%2815 fps96.3%
Rottweil R 905<<locked>>80%39,769 psi64%2815 fps97.1%
Rottweil R 907<<locked>>80%50,705 psi81%2966 fps99.6%
Shooters World Long Rifle<<locked>>80%49,792 psi80%2940 fps100%
Shooters World SW4350<<locked>>80%47,964 psi77%2930 fps99.7%
SNPE Vectan Tubal 7000<<locked>>80%48,704 psi78%2887 fps99.7%
SNPE Vectan Tubal 8000<<locked>>80%39,436 psi63%2808 fps97%
Somchem S361<<locked>>80%42,409 psi68%2799 fps95.7%
Somchem S365<<locked>>80%44,541 psi71%2900 fps100%
Somchem S385<<locked>>80%40,292 psi65%2795 fps98%
Vihtavuori N150<<locked>>80%52,663 psi84%2933 fps100%
Vihtavuori N160<<locked>>80%48,762 psi78%2943 fps100%
Vihtavuori N165<<locked>>80%34,940 psi56%2661 fps96%
Vihtavuori N550<<locked>>80%48,138 psi77%2946 fps100%
Vihtavuori N555<<locked>>80%39,276 psi63%2812 fps99.9%
Vihtavuori N56058.7 gr82%41,046 psi66%2897 fps95.5%
Vihtavuori N565<<locked>>86%38,696 psi62%2828 fps95%
Vihtavuori N568<<locked>>94%44,367 psi71%3002 fps95.5%
Winchester 6.5 StaBALL<<locked>>80%47,993 psi77%2894 fps100%
Winchester 760<<locked>>80%50,140 psi80%3018 fps99.8%
Winchester StaBALL HD<<locked>>80%31,241 psi50%2759 fps100%
Winchester Supreme 780<<locked>>80%36,941 psi59%2717 fps96%

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 .264 Win. Mag. loaded with the .264 | 126gr | Lehigh Defense Controlled Chaos. Hodgdon Retumbo delivers the highest muzzle velocity at 3,258 fps; across all powders the maximum-charge window runs from 1,962 fps to 3,258 fps. ADI AR 2217 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 (430 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 126.0 gr projectile in 0.264" calls for a 1:8.5 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. Hodgdon Retumbo, ReloadSwiss RS 76, Vihtavuori N560 rank at the top here: for .264 Win. Mag. with the .264 | 126gr | Lehigh Defense Controlled Chaos 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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