Load Specifications
Load data in caliber 6 x 62 Freres with .243 | 105gr | Berger BT bullet and 69 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>> | 90% | 52,823 psi | 85% | 2894 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 53,693 psi | 86% | 2930 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 54,389 psi | 87% | 3041 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 90% | 55,230 psi | 89% | 3041 fps | 98% |
| ADI AR 2209 | <<locked>> | 88% | 54,563 psi | 87% | 2986 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 92% | 56,347 psi | 90% | 3048 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 54,346 psi | 87% | 3005 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 49,052 psi | 79% | 2966 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 54,882 psi | 88% | 2982 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 54,389 psi | 87% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 54,259 psi | 87% | 2976 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 90% | 52,866 psi | 85% | 2986 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 92% | 54,230 psi | 87% | 2959 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 53,882 psi | 86% | 3018 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,737 psi | 88% | 3045 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 53,998 psi | 87% | 2943 fps | 96.1% |
| Bofors RP15 | <<locked>> | 94% | 55,811 psi | 89% | 3028 fps | 99.5% |
| Bofors RP30 | <<locked>> | 98% | 53,824 psi | 86% | 3022 fps | 99% |
| Bofors RP5 | <<locked>> | 90% | 52,866 psi | 85% | 2986 fps | 99.3% |
| Bofors RP7 | <<locked>> | 82% | 55,390 psi | 89% | 2930 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 98% | 56,260 psi | 90% | 3041 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 82% | 55,056 psi | 88% | 2979 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 90% | 55,767 psi | 89% | 2979 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 54,839 psi | 88% | 2966 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 54,984 psi | 88% | 2910 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 52,765 psi | 85% | 3087 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 82% | 55,869 psi | 90% | 3015 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,347 psi | 60% | 1919 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 53,882 psi | 86% | 2913 fps | 99.7% |
| IMR 4831 | <<locked>> | 84% | 53,983 psi | 87% | 2920 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 53,200 psi | 85% | 2910 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 92% | 54,259 psi | 87% | 3025 fps | 98.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,469 psi | 71% | 2867 fps | 97.1% |
| Lovex S065 | <<locked>> | 82% | 54,070 psi | 87% | 2897 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 55,941 psi | 90% | 2946 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 54,360 psi | 87% | 2920 fps | 100% |
| Norma 204 | <<locked>> | 84% | 54,679 psi | 88% | 2966 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 44,933 psi | 72% | 2897 fps | 99% |
| Norma MRP | <<locked>> | 88% | 52,736 psi | 85% | 3002 fps | 99.8% |
| Norma URP | <<locked>> | 84% | 55,593 psi | 89% | 2966 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 55,317 psi | 89% | 3048 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 84% | 54,462 psi | 87% | 2966 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 53,751 psi | 86% | 2976 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,029 psi | 61% | 1962 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 53,563 psi | 86% | 2946 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 55,883 psi | 90% | 3031 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 53,635 psi | 86% | 3081 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 52,808 psi | 85% | 3028 fps | 97.8% |
| Rottweil R 904 | <<locked>> | 88% | 55,332 psi | 89% | 2953 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 88% | 53,780 psi | 86% | 2963 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 82% | 55,390 psi | 89% | 2930 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,070 psi | 87% | 2897 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 55,941 psi | 90% | 2946 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 53,301 psi | 85% | 2848 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 53,374 psi | 86% | 2959 fps | 99.3% |
| Somchem S361 | <<locked>> | 86% | 53,505 psi | 86% | 2887 fps | 98% |
| Somchem S365 | <<locked>> | 84% | 52,939 psi | 85% | 2917 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,157 psi | 87% | 2933 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 82% | 53,722 psi | 86% | 2904 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 53,954 psi | 87% | 2917 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 82% | 52,939 psi | 85% | 2907 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 56,391 psi | 90% | 2989 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 56,173 psi | 90% | 3058 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 94% | 53,011 psi | 85% | 2982 fps | 98.3% |
| Vihtavuori N568 | <<locked>> | 98% | 53,766 psi | 86% | 3038 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 53,084 psi | 85% | 2854 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 55,347 psi | 89% | 2986 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 92% | 52,692 psi | 84% | 3035 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 53,969 psi | 87% | 2927 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% | 37,637 psi | 60% | 2612 fps | 98.2% |
| Accurate 4350 | <<locked>> | 80% | 50,038 psi | 80% | 2871 fps | 100% |
| Accurate High Country | 48.7 gr | 80% | 40,857 psi | 66% | 2779 fps | 95.5% |
| Accurate MAGPRO | <<locked>> | 84% | 44,599 psi | 72% | 2844 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 41,423 psi | 66% | 2740 fps | 96.8% |
| ADI AR 2213 | <<locked>> | 84% | 42,743 psi | 69% | 2795 fps | 96% |
| ADI AR 2217 | <<locked>> | 92% | 41,379 psi | 66% | 2756 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 88% | 32,677 psi | 52% | 2589 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,989 psi | 67% | 2743 fps | 97% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,790 psi | 77% | 2877 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,611 psi | 67% | 2736 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,507 psi | 60% | 2677 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,216 psi | 58% | 2641 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,270 psi | 50% | 2543 fps | 96.7% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,335 psi | 65% | 2785 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 50,778 psi | 81% | 2884 fps | 95.2% |
| Bofors RP15 | <<locked>> | 82% | 37,246 psi | 60% | 2667 fps | 95.3% |
| Bofors RP30 | <<locked>> | 88% | 38,130 psi | 61% | 2713 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 37,507 psi | 60% | 2677 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 51,851 psi | 83% | 2871 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 39,581 psi | 63% | 2720 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 51,445 psi | 82% | 2920 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 82% | 42,482 psi | 68% | 2736 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 84% | 44,773 psi | 72% | 2785 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,092 psi | 72% | 2756 fps | 100% |
| Hodgdon Retumbo | 49.3 gr | 84% | 35,041 psi | 56% | 2690 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 51,851 psi | 83% | 2949 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,862 psi | 45% | 1719 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,239 psi | 76% | 2802 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 47,384 psi | 76% | 2812 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 43,918 psi | 70% | 2736 fps | 95.9% |
| IMR 7828 SSC | <<locked>> | 84% | 41,031 psi | 66% | 2769 fps | 95.4% |
| IMR 8133 Enduron | <<locked>> | 96% | 38,711 psi | 62% | 2740 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 50,908 psi | 82% | 2844 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,313 psi | 79% | 2838 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 32,416 psi | 52% | 2487 fps | 96.4% |
| Norma 204 | <<locked>> | 80% | 47,674 psi | 76% | 2841 fps | 98.2% |
| Norma 217 | <<locked>> | 92% | 33,997 psi | 55% | 2644 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 39,450 psi | 63% | 2746 fps | 97.7% |
| Norma URP | <<locked>> | 80% | 48,762 psi | 78% | 2854 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 40,930 psi | 66% | 2776 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 47,630 psi | 76% | 2851 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 82% | 34,127 psi | 55% | 2585 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,500 psi | 46% | 1759 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,038 psi | 80% | 2887 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,225 psi | 77% | 2907 fps | 100% |
| ReloadSwiss RS 76 | 52.8 gr | 84% | 34,418 psi | 55% | 2667 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 45,223 psi | 73% | 2887 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 42,656 psi | 68% | 2720 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 80% | 40,915 psi | 66% | 2720 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 80% | 51,851 psi | 83% | 2871 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,908 psi | 82% | 2844 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,313 psi | 79% | 2838 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,806 psi | 80% | 2792 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,582 psi | 65% | 2717 fps | 96.7% |
| Somchem S361 | <<locked>> | 80% | 43,555 psi | 70% | 2707 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 45,948 psi | 74% | 2808 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,568 psi | 67% | 2707 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 80% | 50,183 psi | 80% | 2848 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,085 psi | 58% | 2572 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 49,530 psi | 79% | 2851 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,553 psi | 65% | 2720 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 42,308 psi | 68% | 2799 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 88% | 43,105 psi | 69% | 2795 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 94% | 46,282 psi | 74% | 2900 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,371 psi | 79% | 2799 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,764 psi | 83% | 2923 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 32,793 psi | 53% | 2664 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,174 psi | 61% | 2628 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 69 powders for 6 x 62 Freres loaded with the .243 | 105gr | Berger BT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,087 fps; across all powders the maximum-charge window runs from 1,919 fps to 3,087 fps. ADI AR 2217 gives the best case fill at 100 %, and 69 of the 69 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 1:9.0 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, Accurate High Country rank at the top here: for 6 x 62 Freres with the .243 | 105gr | Berger BT 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.