Load Specifications
Load data in caliber 6 x 62 R Freres with .243 | 105gr | Lapua Naturalis bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Alliant Reloder-26 and Ramshot Grand.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 54,346 psi | 87% | 3104 fps | 99.8% |
| Accurate 4350 | <<locked>> | 86% | 55,361 psi | 89% | 3153 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 56,115 psi | 90% | 3258 fps | 98% |
| Accurate MAGPRO | <<locked>> | 92% | 53,301 psi | 85% | 3189 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 82% | 56,275 psi | 90% | 3123 fps | 100% |
| ADI AR 2209 | <<locked>> | 90% | 52,924 psi | 85% | 3143 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 94% | 54,520 psi | 87% | 3202 fps | 97.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,081 psi | 79% | 3081 fps | 96.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,758 psi | 70% | 3028 fps | 98.3% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,200 psi | 85% | 3140 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,434 psi | 90% | 3219 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,824 psi | 86% | 3173 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,159 psi | 90% | 3192 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,447 psi | 87% | 3196 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,825 psi | 90% | 3182 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,361 psi | 89% | 3235 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 52,301 psi | 84% | 3199 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 53,650 psi | 86% | 3179 fps | 98.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,126 psi | 82% | 3153 fps | 97.5% |
| Bofors RP5 | <<locked>> | 94% | 54,447 psi | 87% | 3196 fps | 98.7% |
| Bofors RP7 | <<locked>> | 84% | 54,360 psi | 87% | 3100 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,215 psi | 87% | 3182 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 53,563 psi | 86% | 3146 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 84% | 56,115 psi | 90% | 3163 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 92% | 54,549 psi | 87% | 3140 fps | 96.9% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,301 psi | 85% | 3120 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,171 psi | 85% | 3081 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,346 psi | 87% | 3301 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 84% | 54,288 psi | 87% | 3176 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,796 psi | 59% | 2064 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,043 psi | 90% | 3136 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,854 psi | 90% | 3130 fps | 99.5% |
| IMR 4831 | <<locked>> | 88% | 55,999 psi | 90% | 3146 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,463 psi | 89% | 3127 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 96% | 56,391 psi | 90% | 3241 fps | 98% |
| Lovex S065 | <<locked>> | 86% | 56,405 psi | 90% | 3127 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,389 psi | 87% | 3114 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,593 psi | 89% | 3127 fps | 99.9% |
| Norma 204 | <<locked>> | 86% | 53,519 psi | 86% | 3130 fps | 98.2% |
| Norma MRP | <<locked>> | 92% | 54,375 psi | 87% | 3219 fps | 99.5% |
| Norma URP | <<locked>> | 86% | 53,853 psi | 86% | 3133 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 53,055 psi | 85% | 3192 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 86% | 53,026 psi | 85% | 3133 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 98% | 55,840 psi | 90% | 3189 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,550 psi | 60% | 2110 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,782 psi | 89% | 3173 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,288 psi | 87% | 3202 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,463 psi | 89% | 3297 fps | 100% |
| Rottweil R 903 | <<locked>> | 82% | 55,463 psi | 89% | 3107 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,027 psi | 87% | 3114 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 92% | 55,608 psi | 89% | 3182 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 84% | 54,360 psi | 87% | 3100 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,405 psi | 90% | 3127 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,389 psi | 87% | 3114 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,288 psi | 89% | 2982 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,666 psi | 89% | 3074 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,187 psi | 88% | 3176 fps | 98.7% |
| Somchem S355 | <<locked>> | 82% | 54,998 psi | 88% | 3104 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,825 psi | 90% | 3097 fps | 97.2% |
| Somchem S365 | <<locked>> | 88% | 54,331 psi | 87% | 3136 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,086 psi | 90% | 3150 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 84% | 56,333 psi | 90% | 3071 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,796 psi | 89% | 3133 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,840 psi | 90% | 3127 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 86% | 54,940 psi | 88% | 3130 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 53,896 psi | 86% | 3150 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,201 psi | 87% | 3209 fps | 97.1% |
| Vihtavuori N565 | <<locked>> | 98% | 54,128 psi | 87% | 3179 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,608 psi | 89% | 3081 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,853 psi | 86% | 3153 fps | 99.4% |
| Winchester StaBALL HD | <<locked>> | 96% | 53,606 psi | 86% | 3251 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,376 psi | 90% | 3146 fps | 98.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 32,996 psi | 53% | 2664 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 44,701 psi | 72% | 2963 fps | 99.5% |
| Accurate High Country | <<locked>> | 86% | 44,962 psi | 72% | 3041 fps | 95.2% |
| Accurate MAGPRO | <<locked>> | 90% | 49,429 psi | 79% | 3114 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 52,982 psi | 85% | 3071 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 42,931 psi | 69% | 2946 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 90% | 47,384 psi | 76% | 3064 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 98% | 45,716 psi | 73% | 3012 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 96% | 37,956 psi | 61% | 2884 fps | 96.2% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 43,366 psi | 70% | 2946 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,830 psi | 69% | 2972 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,864 psi | 80% | 3104 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 42,931 psi | 69% | 2940 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 86% | 41,234 psi | 66% | 2933 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,676 psi | 51% | 2694 fps | 98.1% |
| Alliant Reloder-25 | <<locked>> | 86% | 33,982 psi | 54% | 2776 fps | 96.2% |
| Alliant Reloder-26 | 51.8 gr | 80% | 34,983 psi | 56% | 2831 fps | 97.2% |
| Bofors RP15 | <<locked>> | 90% | 43,613 psi | 70% | 2982 fps | 96% |
| Bofors RP30 | <<locked>> | 96% | 44,295 psi | 71% | 3018 fps | 95.6% |
| Bofors RP5 | <<locked>> | 86% | 41,234 psi | 66% | 2933 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 47,587 psi | 76% | 2979 fps | 98% |
| Hodgdon H1000 | <<locked>> | 94% | 43,772 psi | 70% | 2976 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 46,514 psi | 75% | 3015 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 49,182 psi | 79% | 3041 fps | 97.7% |
| Hodgdon H4831 | <<locked>> | 88% | 47,239 psi | 76% | 3005 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 90% | 49,748 psi | 80% | 3054 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,335 psi | 65% | 2851 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 40,857 psi | 66% | 3005 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 46,441 psi | 74% | 3035 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,369 psi | 44% | 1850 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,091 psi | 69% | 2897 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,081 psi | 79% | 3009 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 42,612 psi | 68% | 2907 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 48,675 psi | 78% | 3005 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 90% | 45,310 psi | 73% | 3031 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 46,340 psi | 74% | 2949 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 44,875 psi | 72% | 2933 fps | 98% |
| Lovex S071 | <<locked>> | 86% | 34,621 psi | 56% | 2707 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 43,323 psi | 69% | 2930 fps | 95.7% |
| Norma MRP | <<locked>> | 82% | 37,362 psi | 60% | 2867 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 44,063 psi | 71% | 2953 fps | 99.4% |
| Ramshot Grand | 56.1 gr | 90% | 45,513 psi | 73% | 3045 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 43,105 psi | 69% | 2943 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 88% | 37,579 psi | 60% | 2831 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,108 psi | 45% | 1896 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,875 psi | 72% | 2982 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,192 psi | 69% | 2995 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 37,710 psi | 60% | 2910 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 51,808 psi | 83% | 3051 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 44,411 psi | 71% | 2930 fps | 95% |
| Rottweil R 905 | <<locked>> | 84% | 42,105 psi | 68% | 2920 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 47,587 psi | 76% | 2979 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,340 psi | 74% | 2949 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 80% | 44,875 psi | 72% | 2933 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,996 psi | 83% | 2936 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,527 psi | 73% | 2894 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 41,756 psi | 67% | 2913 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 51,459 psi | 83% | 3048 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 48,820 psi | 78% | 2976 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 40,814 psi | 65% | 2904 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 39,769 psi | 64% | 2835 fps | 95.9% |
| Vihtavuori N150 | <<locked>> | 80% | 49,530 psi | 79% | 2966 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,498 psi | 73% | 2956 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 39,610 psi | 64% | 2818 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 44,788 psi | 72% | 2949 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 35,491 psi | 57% | 2779 fps | 98.1% |
| Vihtavuori N560 | 55.3 gr | 88% | 46,905 psi | 75% | 3068 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 94% | 47,108 psi | 76% | 3048 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,991 psi | 72% | 2910 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,760 psi | 75% | 3018 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,253 psi | 45% | 2680 fps | 97.8% |
| Winchester Supreme 780 | <<locked>> | 86% | 42,293 psi | 68% | 2884 fps | 95.6% |
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 72 powders for 6 x 62 R Freres loaded with the .243 | 105gr | Lapua Naturalis. Hodgdon Retumbo delivers the highest muzzle velocity at 3,301 fps; across all powders the maximum-charge window runs from 2,064 fps to 3,301 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 90.0 gr projectile in 0.243" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Vihtavuori N560, Alliant Reloder-26, Ramshot Grand rank at the top here: for 6 x 62 R Freres with the .243 | 105gr | Lapua Naturalis 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.