Load Specifications
Load data in caliber 6 x 62 R Freres with .243 | 77gr | Lapua Open Tip 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 Accurate High Country.
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>> | 92% | 56,217 psi | 90% | 2946 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 53,185 psi | 85% | 2923 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 53,983 psi | 87% | 3038 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 90% | 54,824 psi | 88% | 3038 fps | 97.9% |
| ADI AR 2209 | <<locked>> | 88% | 54,114 psi | 87% | 2979 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 92% | 55,608 psi | 89% | 3038 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 54,012 psi | 87% | 3002 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,399 psi | 78% | 2959 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 54,157 psi | 87% | 2972 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 54,215 psi | 87% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 53,548 psi | 86% | 2963 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,898 psi | 90% | 3035 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 92% | 53,766 psi | 86% | 2956 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 53,447 psi | 86% | 3015 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,244 psi | 87% | 3038 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 53,751 psi | 86% | 2940 fps | 96% |
| Bofors RP15 | <<locked>> | 94% | 55,056 psi | 88% | 3022 fps | 99.4% |
| Bofors RP30 | <<locked>> | 98% | 53,098 psi | 85% | 3012 fps | 98.9% |
| Bofors RP5 | <<locked>> | 92% | 55,898 psi | 90% | 3035 fps | 99.6% |
| Bofors RP7 | <<locked>> | 82% | 54,969 psi | 88% | 2923 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 98% | 55,550 psi | 89% | 3028 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 82% | 54,592 psi | 88% | 2972 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 90% | 55,361 psi | 89% | 2976 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 54,433 psi | 87% | 2963 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 54,476 psi | 87% | 2904 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,898 psi | 90% | 3143 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 55,129 psi | 88% | 3005 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,231 psi | 60% | 1916 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 53,447 psi | 86% | 2910 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 56,275 psi | 90% | 2943 fps | 99.9% |
| IMR 4831 | <<locked>> | 84% | 53,505 psi | 86% | 2913 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 56,144 psi | 90% | 2959 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 92% | 53,795 psi | 86% | 3018 fps | 98.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,816 psi | 70% | 2854 fps | 96.8% |
| Lovex S065 | <<locked>> | 82% | 53,621 psi | 86% | 2890 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 55,492 psi | 89% | 2940 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 53,969 psi | 87% | 2913 fps | 100% |
| Norma 204 | <<locked>> | 84% | 54,244 psi | 87% | 2959 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 44,222 psi | 71% | 2884 fps | 98.9% |
| Norma MRP | <<locked>> | 90% | 56,101 psi | 90% | 3058 fps | 100% |
| Norma URP | <<locked>> | 84% | 55,114 psi | 88% | 2959 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 54,549 psi | 87% | 3038 fps | 99% |
| Ramshot Hunter | <<locked>> | 84% | 54,041 psi | 87% | 2959 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 53,026 psi | 85% | 2966 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,145 psi | 61% | 1962 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 53,084 psi | 85% | 2940 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 55,419 psi | 89% | 3025 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 52,953 psi | 85% | 3074 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 52,127 psi | 84% | 3022 fps | 97.6% |
| Rottweil R 904 | <<locked>> | 88% | 54,911 psi | 88% | 2946 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 88% | 53,359 psi | 86% | 2956 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 82% | 54,969 psi | 88% | 2923 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 82% | 53,621 psi | 86% | 2890 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 55,492 psi | 89% | 2940 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 56,217 psi | 90% | 2894 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 56,434 psi | 90% | 3009 fps | 99.6% |
| Somchem S361 | <<locked>> | 86% | 52,881 psi | 85% | 2877 fps | 97.8% |
| Somchem S365 | <<locked>> | 86% | 55,941 psi | 90% | 2959 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 53,751 psi | 86% | 2930 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 82% | 53,243 psi | 85% | 2897 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 53,592 psi | 86% | 2913 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 84% | 56,086 psi | 90% | 2953 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 55,912 psi | 90% | 2986 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 55,753 psi | 89% | 3051 fps | 98.5% |
| Vihtavuori N565 | <<locked>> | 96% | 56,028 psi | 90% | 3035 fps | 98.8% |
| Vihtavuori N568 | <<locked>> | 98% | 53,055 psi | 85% | 3025 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 56,318 psi | 90% | 2900 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,882 psi | 88% | 2976 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 94% | 56,333 psi | 90% | 3091 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 53,548 psi | 86% | 2920 fps | 99.3% |
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% | 37,202 psi | 60% | 2605 fps | 98% |
| Accurate 4350 | <<locked>> | 80% | 49,545 psi | 79% | 2864 fps | 100% |
| Accurate High Country | 48.3 gr | 80% | 40,422 psi | 65% | 2769 fps | 95.3% |
| Accurate MAGPRO | <<locked>> | 84% | 44,208 psi | 71% | 2838 fps | 95.2% |
| ADI AR 2209 | <<locked>> | 80% | 41,249 psi | 66% | 2736 fps | 96.7% |
| ADI AR 2213 | <<locked>> | 84% | 42,351 psi | 68% | 2789 fps | 95.8% |
| ADI AR 2217 | <<locked>> | 92% | 41,017 psi | 66% | 2749 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 88% | 32,387 psi | 52% | 2579 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,597 psi | 67% | 2736 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,282 psi | 76% | 2871 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,205 psi | 66% | 2730 fps | 96.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,101 psi | 59% | 2667 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,781 psi | 57% | 2631 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,096 psi | 50% | 2539 fps | 96.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,827 psi | 64% | 2779 fps | 99.6% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 50,285 psi | 81% | 2877 fps | 95% |
| Bofors RP15 | <<locked>> | 82% | 37,072 psi | 59% | 2667 fps | 95.3% |
| Bofors RP30 | <<locked>> | 90% | 40,350 psi | 65% | 2762 fps | 95.8% |
| Bofors RP5 | <<locked>> | 80% | 37,101 psi | 59% | 2667 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 51,677 psi | 83% | 2867 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 39,001 psi | 63% | 2707 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 51,010 psi | 82% | 2913 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 82% | 42,076 psi | 67% | 2730 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 84% | 44,382 psi | 71% | 2779 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,628 psi | 72% | 2749 fps | 100% |
| Hodgdon Retumbo | 50.1 gr | 86% | 37,188 psi | 60% | 2753 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 80% | 51,126 psi | 82% | 2940 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,891 psi | 45% | 1716 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,050 psi | 75% | 2799 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,997 psi | 85% | 2894 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 46,934 psi | 75% | 2808 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 43,526 psi | 70% | 2730 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 84% | 40,640 psi | 65% | 2759 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 98% | 41,002 psi | 66% | 2795 fps | 95.9% |
| Lovex S065 | <<locked>> | 80% | 50,473 psi | 81% | 2838 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,863 psi | 78% | 2831 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 32,039 psi | 51% | 2477 fps | 96.2% |
| Norma 204 | <<locked>> | 80% | 47,282 psi | 76% | 2835 fps | 98.1% |
| Norma 217 | <<locked>> | 92% | 33,417 psi | 54% | 2631 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 39,015 psi | 63% | 2740 fps | 97.6% |
| Norma URP | <<locked>> | 80% | 48,283 psi | 77% | 2848 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 40,524 psi | 65% | 2769 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 47,181 psi | 76% | 2844 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 82% | 33,750 psi | 54% | 2579 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,543 psi | 46% | 1759 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,559 psi | 79% | 2884 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,761 psi | 77% | 2900 fps | 100% |
| ReloadSwiss RS 76 | 52.3 gr | 84% | 33,895 psi | 54% | 2654 fps | 96% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 44,614 psi | 72% | 2881 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 42,511 psi | 68% | 2717 fps | 96% |
| Rottweil R 905 | <<locked>> | 80% | 40,698 psi | 65% | 2717 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 80% | 51,677 psi | 83% | 2867 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,473 psi | 81% | 2838 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,863 psi | 78% | 2831 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,385 psi | 79% | 2785 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,364 psi | 65% | 2713 fps | 96.7% |
| Somchem S361 | <<locked>> | 80% | 43,192 psi | 69% | 2697 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 45,716 psi | 73% | 2805 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,176 psi | 66% | 2697 fps | 97.7% |
| Vihtavuori N160 | <<locked>> | 80% | 49,734 psi | 80% | 2841 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,723 psi | 57% | 2566 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 49,095 psi | 79% | 2844 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,074 psi | 64% | 2710 fps | 99.8% |
| Vihtavuori N560 | <<locked>> | 82% | 41,901 psi | 67% | 2792 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 88% | 42,453 psi | 68% | 2782 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 94% | 45,934 psi | 74% | 2897 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,979 psi | 79% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,285 psi | 82% | 2917 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 32,271 psi | 52% | 2654 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,797 psi | 61% | 2621 fps | 95.7% |
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 6 x 62 R Freres loaded with the .243 | 77gr | Lapua Open Tip. Hodgdon Retumbo delivers the highest muzzle velocity at 3,143 fps; across all powders the maximum-charge window runs from 1,916 fps to 3,143 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 105.0 gr projectile in 0.243" calls for a 1:8.0 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, Accurate High Country rank at the top here: for 6 x 62 R Freres with the .243 | 77gr | Lapua Open Tip 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.