Load Specifications
Load data in caliber .264 Win. Mag. with .264 | 123gr | Sierra MatchKing bullet and 70 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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Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 54,723 psi | 88% | 3087 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 55,608 psi | 89% | 3117 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 53,432 psi | 86% | 3182 fps | 97.9% |
| ADI AR 2209 | <<locked>> | 88% | 52,895 psi | 85% | 3120 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 92% | 54,360 psi | 87% | 3186 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,620 psi | 84% | 3146 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,079 psi | 75% | 3104 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 84% | 53,011 psi | 85% | 3120 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,028 psi | 90% | 3169 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 92% | 54,621 psi | 88% | 3182 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 94% | 56,028 psi | 90% | 3153 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 55,463 psi | 89% | 3215 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 52,431 psi | 84% | 3182 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 55,999 psi | 90% | 3143 fps | 96.8% |
| Bofors RP15 | <<locked>> | 94% | 53,824 psi | 86% | 3169 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,303 psi | 89% | 3219 fps | 99.4% |
| Bofors RP5 | <<locked>> | 92% | 54,621 psi | 88% | 3182 fps | 99.6% |
| Bofors RP7 | <<locked>> | 82% | 54,143 psi | 87% | 3061 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 98% | 54,099 psi | 87% | 3176 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 82% | 53,476 psi | 86% | 3117 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 56,086 psi | 90% | 3130 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 90% | 54,186 psi | 87% | 3120 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 53,127 psi | 85% | 3100 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 53,403 psi | 86% | 3041 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 54,476 psi | 87% | 3301 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 54,056 psi | 87% | 3153 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,173 psi | 60% | 1988 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 55,825 psi | 90% | 3104 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,550 psi | 89% | 3087 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 55,927 psi | 90% | 3107 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,172 psi | 88% | 3104 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 94% | 56,217 psi | 90% | 3228 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,554 psi | 68% | 2999 fps | 96.9% |
| Lovex S065 | <<locked>> | 84% | 56,333 psi | 90% | 3087 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 54,549 psi | 87% | 3081 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,043 psi | 90% | 3107 fps | 100% |
| Norma 204 | <<locked>> | 84% | 53,374 psi | 86% | 3104 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 42,714 psi | 68% | 3025 fps | 98.9% |
| Norma MRP | <<locked>> | 90% | 54,650 psi | 88% | 3209 fps | 100% |
| Norma URP | <<locked>> | 84% | 54,070 psi | 87% | 3100 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 53,229 psi | 85% | 3186 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 84% | 53,113 psi | 85% | 3107 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 55,535 psi | 89% | 3176 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,116 psi | 61% | 2037 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 55,709 psi | 89% | 3140 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 54,259 psi | 87% | 3173 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 55,216 psi | 89% | 3291 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,360 psi | 87% | 3238 fps | 98.4% |
| Rottweil R 904 | <<locked>> | 88% | 54,070 psi | 87% | 3091 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 90% | 55,782 psi | 89% | 3163 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 82% | 54,143 psi | 87% | 3061 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,333 psi | 90% | 3087 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 54,549 psi | 87% | 3081 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,506 psi | 89% | 3035 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,361 psi | 89% | 3156 fps | 99.6% |
| Somchem S361 | <<locked>> | 88% | 55,405 psi | 89% | 3077 fps | 98.5% |
| Somchem S365 | <<locked>> | 86% | 54,766 psi | 88% | 3104 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,115 psi | 90% | 3127 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 56,217 psi | 90% | 3022 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 55,637 psi | 89% | 3087 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 55,782 psi | 89% | 3107 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 84% | 54,969 psi | 88% | 3097 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 54,592 psi | 88% | 3127 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 54,389 psi | 87% | 3202 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 96% | 54,360 psi | 87% | 3179 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,172 psi | 88% | 3245 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,274 psi | 89% | 3041 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 53,751 psi | 86% | 3120 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 94% | 54,491 psi | 87% | 3241 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,101 psi | 90% | 3123 fps | 99.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 36,361 psi | 58% | 2730 fps | 98.2% |
| Accurate 4350 | <<locked>> | 80% | 48,486 psi | 78% | 2999 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 43,047 psi | 69% | 2976 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 40,292 psi | 65% | 2864 fps | 96.9% |
| ADI AR 2213 | <<locked>> | 84% | 41,408 psi | 66% | 2923 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 92% | 39,987 psi | 64% | 2884 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 88% | 31,720 psi | 51% | 2713 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,456 psi | 74% | 3005 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,364 psi | 65% | 2861 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,405 psi | 58% | 2802 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,954 psi | 56% | 2759 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,342 psi | 49% | 2661 fps | 96.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,638 psi | 62% | 2913 fps | 99.6% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,327 psi | 79% | 3015 fps | 95.1% |
| Bofors RP15 | <<locked>> | 82% | 36,129 psi | 58% | 2792 fps | 95.4% |
| Bofors RP30 | <<locked>> | 90% | 39,204 psi | 63% | 2897 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 36,405 psi | 58% | 2802 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 50,734 psi | 81% | 3002 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 38,174 psi | 61% | 2841 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 50,096 psi | 80% | 3054 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 52,605 psi | 84% | 3071 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 41,176 psi | 66% | 2861 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 84% | 43,424 psi | 70% | 2910 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,743 psi | 70% | 2877 fps | 100% |
| Hodgdon Retumbo | 59 gr | 84% | 33,982 psi | 54% | 2815 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 50,067 psi | 80% | 3084 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,862 psi | 45% | 1781 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,108 psi | 74% | 2927 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,127 psi | 84% | 3028 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 46,137 psi | 74% | 2943 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,074 psi | 64% | 2802 fps | 95% |
| IMR 7828 SSC | <<locked>> | 84% | 39,871 psi | 64% | 2897 fps | 95.5% |
| IMR 8133 Enduron | <<locked>> | 96% | 37,246 psi | 60% | 2871 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 49,632 psi | 80% | 2972 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,008 psi | 77% | 2963 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 31,372 psi | 50% | 2598 fps | 96.5% |
| Norma 204 | <<locked>> | 80% | 46,528 psi | 75% | 2976 fps | 98.2% |
| Norma 217 | <<locked>> | 92% | 32,503 psi | 52% | 2762 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 38,203 psi | 61% | 2877 fps | 97.7% |
| Norma URP | <<locked>> | 80% | 47,355 psi | 76% | 2982 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 39,668 psi | 64% | 2907 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 46,427 psi | 74% | 2986 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 82% | 32,924 psi | 53% | 2703 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,572 psi | 46% | 1824 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,544 psi | 78% | 3022 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,833 psi | 75% | 3045 fps | 100% |
| ReloadSwiss RS 76 | 63.1 gr | 84% | 33,083 psi | 53% | 2785 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 43,221 psi | 69% | 3022 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 41,771 psi | 67% | 2848 fps | 96.2% |
| Rottweil R 905 | <<locked>> | 80% | 39,798 psi | 64% | 2848 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 80% | 50,734 psi | 81% | 3002 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,632 psi | 80% | 2972 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,008 psi | 77% | 2963 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,747 psi | 78% | 2920 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,465 psi | 63% | 2841 fps | 96.8% |
| Somchem S361 | <<locked>> | 80% | 42,496 psi | 68% | 2831 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 44,570 psi | 71% | 2936 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,480 psi | 65% | 2831 fps | 97.9% |
| Vihtavuori N150 | <<locked>> | 80% | 52,707 psi | 85% | 2966 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,776 psi | 78% | 2976 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,969 psi | 56% | 2690 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 48,341 psi | 78% | 2982 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,349 psi | 63% | 2844 fps | 99.9% |
| Vihtavuori N560 | 59.7 gr | 82% | 40,973 psi | 66% | 2927 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 88% | 41,437 psi | 66% | 2923 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 94% | 44,425 psi | 71% | 3031 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,109 psi | 77% | 2930 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,343 psi | 81% | 3061 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,372 psi | 50% | 2789 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,912 psi | 59% | 2746 fps | 95.8% |
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.
This overview compares 70 powders for .264 Win. Mag. loaded with the .264 | 123gr | Sierra MatchKing. Hodgdon Retumbo delivers the highest muzzle velocity at 3,301 fps; across all powders the maximum-charge window runs from 1,988 fps to 3,301 fps. ADI AR 2217 gives the best case fill at 100 %, and 70 of the 70 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 123.0 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. Hodgdon Retumbo, ReloadSwiss RS 76, Vihtavuori N560 rank at the top here: for .264 Win. Mag. with the .264 | 123gr | Sierra MatchKing 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.