Load data for .264 Win. Mag. + .264 | 120gr | Impala RNFP KO

.264 Win. Mag. cartridge drawing
Impala Bullets logo

Load Specifications

Bullet Manufacturer:Impala Bullets
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 | Impala RNFP KO bullet and 68 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 Winchester StaBALL HD.

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%54,433 psi87%3097 fps100%
Accurate 4350<<locked>>82%54,984 psi88%3123 fps100%
Accurate MAGPRO<<locked>>90%55,767 psi89%3245 fps98.1%
ADI AR 2209<<locked>>88%54,694 psi88%3169 fps99.4%
ADI AR 2213<<locked>>92%56,231 psi90%3238 fps98.9%
ADI AR 2217ᴾ<<locked>>100%54,404 psi87%3196 fps99%
ADI AR 2225ᴾ<<locked>>100%49,414 psi79%3166 fps100%
Alliant Power Pro Varmint<<locked>>88%55,245 psi89%3169 fps99.4%
Alliant Reloder-16<<locked>>84%55,056 psi88%3173 fps100%
Alliant Reloder-19<<locked>>88%54,636 psi88%3163 fps99.4%
Alliant Reloder-22<<locked>>90%53,272 psi85%3176 fps99.3%
Alliant Reloder-23<<locked>>92%54,911 psi88%3156 fps100%
Alliant Reloder-25<<locked>>96%54,215 psi87%3219 fps100%
Alliant Reloder-26<<locked>>88%55,317 psi89%3248 fps100%
Baschieri & Pellagri 109<<locked>>92%54,099 psi87%3123 fps96%
Bofors RP15<<locked>>94%55,970 psi90%3222 fps99.5%
Bofors RP30<<locked>>98%54,186 psi87%3219 fps99.1%
Bofors RP5<<locked>>90%53,272 psi85%3176 fps99.3%
Bofors RP7<<locked>>82%56,086 psi90%3110 fps99.8%
Hodgdon H1000<<locked>>98%56,072 psi90%3225 fps99.5%
Hodgdon H414<<locked>>82%55,724 psi89%3169 fps100%
Hodgdon H4831<<locked>>90%56,043 psi90%3166 fps98.4%
Hodgdon H4831 SC<<locked>>90%55,013 psi88%3150 fps98.2%
Hodgdon Hybrid 100V<<locked>>86%55,419 psi89%3091 fps100%
Hodgdon Retumbo<<locked>>96%53,069 psi85%3291 fps99.9%
Hodgdon Superformance<<locked>>82%56,072 psi90%3205 fps99.9%
Hodgdon TrailBossᴾ<<locked>>100%37,507 psi60%2011 fps100%
IMR 4350<<locked>>84%54,360 psi87%3097 fps99.8%
IMR 4831<<locked>>84%54,998 psi88%3110 fps100%
IMR 4955 Enduron<<locked>>88%53,490 psi86%3091 fps98.1%
IMR 7828 SSC<<locked>>92%54,418 psi87%3215 fps98.8%
IMR 8133 Enduronᴾ<<locked>>100%45,208 psi72%3071 fps97.4%
Lovex S065<<locked>>82%55,259 psi89%3084 fps100%
Lovex S070<<locked>>82%53,635 psi86%3081 fps99.9%
Lovex S071<<locked>>96%55,666 psi89%3114 fps100%
Norma 204<<locked>>84%55,216 psi89%3153 fps99.3%
Norma 217ᴾ<<locked>>100%45,469 psi73%3100 fps99.2%
Norma MRP<<locked>>88%53,142 psi85%3202 fps99.9%
Norma URP<<locked>>84%56,130 psi90%3153 fps100%
Ramshot Grand<<locked>>92%55,376 psi89%3241 fps99.2%
Ramshot Hunter<<locked>>84%55,085 psi88%3159 fps100%
Ramshot Magnum<<locked>>94%54,085 psi87%3169 fps99.8%
ReloadSwiss RS 14ᴾ<<locked>>100%38,551 psi62%2060 fps100%
ReloadSwiss RS 62<<locked>>82%54,563 psi87%3143 fps100%
ReloadSwiss RS 70<<locked>>84%56,173 psi90%3222 fps100%
ReloadSwiss RS 76<<locked>>96%53,621 psi86%3284 fps100%
ReloadSwiss RS 80<<locked>>98%52,997 psi85%3235 fps97.9%
Rottweil R 904<<locked>>88%55,840 psi90%3140 fps98.8%
Rottweil R 905<<locked>>88%54,360 psi87%3153 fps99.4%
Rottweil R 907<<locked>>82%56,086 psi90%3110 fps99.8%
Shooters World Long Rifle<<locked>>82%55,259 psi89%3084 fps100%
Shooters World SW4350<<locked>>82%53,635 psi86%3081 fps99.9%
SNPE Vectan Tubal 7000<<locked>>82%54,143 psi87%3028 fps99.9%
SNPE Vectan Tubal 8000<<locked>>88%53,925 psi86%3150 fps99.4%
Somchem S361<<locked>>86%54,056 psi87%3068 fps98%
Somchem S365<<locked>>84%53,722 psi86%3107 fps100%
Somchem S385<<locked>>88%54,969 psi88%3123 fps99.8%
Vihtavuori N160<<locked>>82%54,360 psi87%3087 fps100%
Vihtavuori N165<<locked>>92%54,360 psi87%3100 fps99.6%
Vihtavuori N550<<locked>>82%53,737 psi86%3091 fps100%
Vihtavuori N555<<locked>>88%54,070 psi87%3136 fps100%
Vihtavuori N560<<locked>>88%52,779 psi85%3189 fps98.1%
Vihtavuori N565<<locked>>94%53,577 psi86%3182 fps98.4%
Vihtavuori N568<<locked>>98%53,679 psi86%3235 fps97.4%
Winchester 6.5 StaBALL<<locked>>82%53,447 psi86%3035 fps100%
Winchester 760<<locked>>82%55,724 psi89%3169 fps100%
Winchester StaBALL HD<<locked>>92%52,924 psi85%3241 fps100%
Winchester Supreme 780<<locked>>90%54,534 psi87%3114 fps99.4%

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%39,624 psi64%2812 fps98.7%
Accurate 4350<<locked>>80%51,576 psi83%3068 fps100%
Accurate MAGPRO<<locked>>84%45,687 psi73%3048 fps95.8%
ADI AR 2209<<locked>>80%42,395 psi68%2927 fps97.2%
ADI AR 2213<<locked>>82%40,727 psi65%2917 fps95.3%
ADI AR 2217<<locked>>90%39,726 psi64%2884 fps95.3%
ADI AR 2225<<locked>>86%32,140 psi52%2730 fps95.4%
Alliant Power Pro Varmint<<locked>>80%42,931 psi69%2930 fps97.3%
Alliant Reloder-16<<locked>>80%48,515 psi78%3061 fps100%
Alliant Reloder-19<<locked>>80%42,583 psi68%2923 fps97.3%
Alliant Reloder-22<<locked>>80%38,754 psi62%2874 fps96.3%
Alliant Reloder-23<<locked>>80%37,521 psi60%2831 fps100%
Alliant Reloder-25<<locked>>80%32,851 psi53%2746 fps97.7%
Alliant Reloder-26<<locked>>80%41,553 psi67%2995 fps99.9%
Baschieri & Pellagri 109<<locked>>90%51,097 psi82%3064 fps95.2%
Bofors RP15<<locked>>80%36,245 psi58%2805 fps95.2%
Bofors RP30<<locked>>88%39,334 psi63%2913 fps95.7%
Bofors RP5<<locked>>80%38,754 psi62%2874 fps96.3%
Bofors RP7<<locked>>80%52,968 psi85%3054 fps99.6%
Hodgdon H1000<<locked>>86%38,043 psi61%2848 fps95.4%
Hodgdon H414<<locked>>80%52,388 psi84%3114 fps99.8%
Hodgdon H4831<<locked>>82%43,352 psi70%2923 fps95.5%
Hodgdon H4831 SC<<locked>>82%42,569 psi68%2904 fps95.3%
Hodgdon Hybrid 100V<<locked>>80%46,137 psi74%2936 fps100%
Hodgdon Retumbo58.7 gr84%36,303 psi58%2897 fps96%
Hodgdon Superformance<<locked>>80%52,141 psi84%3136 fps99.7%
Hodgdon TrailBoss<<locked>>80%28,195 psi45%1801 fps100%
IMR 4350<<locked>>80%48,124 psi77%2982 fps99.1%
IMR 4831<<locked>>80%48,530 psi78%3002 fps100%
IMR 4955 Enduron<<locked>>80%42,090 psi67%2858 fps95.3%
IMR 7828 SSC<<locked>>84%41,989 psi67%2959 fps95.9%
IMR 8133 Enduron<<locked>>96%39,929 psi64%2949 fps95.7%
Lovex S065<<locked>>80%51,967 psi83%3028 fps100%
Lovex S070<<locked>>80%50,473 psi81%3022 fps99.7%
Lovex S071<<locked>>80%34,621 psi56%2690 fps97.4%
Norma 204<<locked>>80%48,414 psi78%3028 fps98.4%
Norma 217<<locked>>90%33,330 psi53%2795 fps95.5%
Norma MRP<<locked>>80%40,625 psi65%2946 fps98.2%
Norma URP<<locked>>80%49,748 psi80%3041 fps100%
Ramshot Grand<<locked>>82%39,276 psi63%2907 fps95.3%
Ramshot Hunter<<locked>>80%48,457 psi78%3038 fps99.8%
Ramshot Magnum<<locked>>80%33,243 psi53%2720 fps95%
ReloadSwiss RS 14<<locked>>80%28,979 psi46%1847 fps100%
ReloadSwiss RS 62<<locked>>80%51,271 psi82%3084 fps100%
ReloadSwiss RS 70<<locked>>80%48,834 psi78%3100 fps100%
ReloadSwiss RS 7661.3 gr82%33,388 psi54%2802 fps96%
ReloadSwiss RS 80<<locked>>92%42,873 psi69%3028 fps95.2%
Rottweil R 904<<locked>>80%43,656 psi70%2900 fps96.4%
Rottweil R 905<<locked>>80%42,221 psi68%2913 fps97.3%
Rottweil R 907<<locked>>80%52,968 psi85%3054 fps99.6%
Shooters World Long Rifle<<locked>>80%51,967 psi83%3028 fps100%
Shooters World SW4350<<locked>>80%50,473 psi81%3022 fps99.7%
SNPE Vectan Tubal 7000<<locked>>80%50,865 psi82%2972 fps99.7%
SNPE Vectan Tubal 8000<<locked>>80%41,872 psi67%2910 fps97.2%
Somchem S361<<locked>>80%44,599 psi72%2887 fps95.9%
Somchem S365<<locked>>80%47,195 psi76%2999 fps100%
Somchem S385<<locked>>80%42,975 psi69%2897 fps98.2%
Vihtavuori N160<<locked>>80%51,068 psi82%3031 fps100%
Vihtavuori N165<<locked>>80%37,420 psi60%2762 fps96.4%
Vihtavuori N550<<locked>>80%50,575 psi81%3038 fps100%
Vihtavuori N555<<locked>>80%42,206 psi68%2920 fps100%
Vihtavuori N560<<locked>>82%43,366 psi70%2999 fps95.8%
Vihtavuori N565<<locked>>86%41,524 psi67%2936 fps95.5%
Vihtavuori N568<<locked>>94%46,963 psi75%3104 fps95.8%
Winchester 6.5 StaBALL<<locked>>80%50,009 psi80%2979 fps100%
Winchester 760<<locked>>80%52,388 psi84%3114 fps99.8%
Winchester StaBALL HD57.4 gr80%34,026 psi55%2877 fps100%
Winchester Supreme 780<<locked>>80%39,334 psi63%2812 fps96.4%

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 68 powders for .264 Win. Mag. loaded with the .264 | 120gr | Impala RNFP KO. Hodgdon Retumbo delivers the highest muzzle velocity at 3,291 fps; across all powders the maximum-charge window runs from 2,011 fps to 3,291 fps. ADI AR 2217 gives the best case fill at 100 %, and 68 of the 68 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 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, Hodgdon TrailBoss 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, Winchester StaBALL HD rank at the top here: for .264 Win. Mag. with the .264 | 120gr | Impala RNFP KO 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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