Load Specifications
Load data in caliber 6 x 62 Freres with .243 | 107gr | Sierra MatchKing bullet and 68 powders. The key underlying parameters are shown in the table above.
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% | 53,127 psi | 85% | 2877 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 53,867 psi | 86% | 2907 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 54,433 psi | 87% | 3022 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 90% | 55,361 psi | 89% | 3022 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 88% | 54,491 psi | 87% | 2963 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 92% | 56,405 psi | 90% | 3028 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 54,505 psi | 87% | 2986 fps | 99.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 49,211 psi | 79% | 2949 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 54,549 psi | 87% | 2963 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 54,215 psi | 87% | 2953 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 90% | 52,866 psi | 85% | 2963 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 92% | 54,520 psi | 87% | 2940 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 53,954 psi | 87% | 2999 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,781 psi | 88% | 3022 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 54,070 psi | 87% | 2923 fps | 96.3% |
| Bofors RP15 | <<locked>> | 94% | 55,811 psi | 89% | 3009 fps | 99.6% |
| Bofors RP30 | <<locked>> | 98% | 53,940 psi | 86% | 3002 fps | 99.1% |
| Bofors RP5 | <<locked>> | 90% | 52,866 psi | 85% | 2963 fps | 99.4% |
| Bofors RP7 | <<locked>> | 82% | 55,506 psi | 89% | 2907 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 98% | 56,028 psi | 90% | 3015 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 82% | 55,245 psi | 89% | 2959 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 56,101 psi | 90% | 2966 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 90% | 54,810 psi | 88% | 2943 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 54,853 psi | 88% | 2884 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 52,866 psi | 85% | 3071 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 82% | 55,898 psi | 90% | 2992 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,391 psi | 60% | 1903 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 53,766 psi | 86% | 2890 fps | 99.8% |
| IMR 4831 | <<locked>> | 84% | 54,128 psi | 87% | 2897 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 53,127 psi | 85% | 2887 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 92% | 54,578 psi | 88% | 3005 fps | 98.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,556 psi | 71% | 2848 fps | 97.2% |
| Lovex S065 | <<locked>> | 82% | 54,157 psi | 87% | 2874 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,072 psi | 90% | 2927 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 54,375 psi | 87% | 2897 fps | 100% |
| Norma 204 | <<locked>> | 84% | 54,926 psi | 88% | 2946 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 45,092 psi | 72% | 2877 fps | 99.2% |
| Norma MRP | <<locked>> | 88% | 52,736 psi | 85% | 2979 fps | 99.9% |
| Norma URP | <<locked>> | 84% | 55,767 psi | 89% | 2943 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 55,434 psi | 89% | 3028 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 84% | 54,708 psi | 88% | 2946 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 53,925 psi | 86% | 2956 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,072 psi | 61% | 1942 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 53,780 psi | 86% | 2927 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 56,231 psi | 90% | 3012 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 53,867 psi | 86% | 3064 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 53,113 psi | 85% | 3015 fps | 98% |
| Rottweil R 904 | <<locked>> | 88% | 55,579 psi | 89% | 2933 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 88% | 53,708 psi | 86% | 2940 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 82% | 55,506 psi | 89% | 2907 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,157 psi | 87% | 2874 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,072 psi | 90% | 2927 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 53,388 psi | 86% | 2828 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 53,330 psi | 86% | 2936 fps | 99.4% |
| Somchem S361 | <<locked>> | 86% | 53,519 psi | 86% | 2864 fps | 98.1% |
| Somchem S365 | <<locked>> | 84% | 52,794 psi | 85% | 2894 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,418 psi | 87% | 2917 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 82% | 53,882 psi | 86% | 2884 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 53,969 psi | 87% | 2894 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 82% | 53,098 psi | 85% | 2887 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 52,895 psi | 85% | 2913 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 56,217 psi | 90% | 3038 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 94% | 53,113 psi | 85% | 2963 fps | 98.4% |
| Vihtavuori N568 | <<locked>> | 98% | 53,954 psi | 87% | 3018 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 53,316 psi | 85% | 2835 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 55,245 psi | 89% | 2959 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 53,127 psi | 85% | 3022 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,259 psi | 87% | 2910 fps | 99.4% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 37,724 psi | 60% | 2595 fps | 98.3% |
| Accurate 4350 | <<locked>> | 80% | 50,140 psi | 80% | 2851 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 41,046 psi | 66% | 2762 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 84% | 44,860 psi | 72% | 2828 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 41,539 psi | 67% | 2723 fps | 97% |
| ADI AR 2213 | <<locked>> | 82% | 39,958 psi | 64% | 2713 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 90% | 38,740 psi | 62% | 2677 fps | 95% |
| ADI AR 2225 | <<locked>> | 88% | 32,851 psi | 53% | 2575 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,892 psi | 77% | 2858 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,698 psi | 67% | 2717 fps | 97.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,623 psi | 60% | 2661 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,318 psi | 58% | 2621 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,328 psi | 50% | 2526 fps | 96.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,509 psi | 65% | 2772 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 50,836 psi | 82% | 2864 fps | 95.4% |
| Bofors RP15 | <<locked>> | 82% | 37,362 psi | 60% | 2651 fps | 95.6% |
| Bofors RP30 | <<locked>> | 88% | 38,101 psi | 61% | 2694 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 37,623 psi | 60% | 2661 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 51,909 psi | 83% | 2848 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 88% | 39,552 psi | 63% | 2703 fps | 96.1% |
| Hodgdon H414 | <<locked>> | 80% | 51,590 psi | 83% | 2900 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 82% | 42,641 psi | 68% | 2720 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 82% | 41,887 psi | 67% | 2703 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,150 psi | 72% | 2733 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 84% | 35,186 psi | 56% | 2677 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 51,808 psi | 83% | 2927 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,021 psi | 45% | 1703 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,311 psi | 76% | 2779 fps | 99.1% |
| IMR 4831 | <<locked>> | 80% | 47,471 psi | 76% | 2792 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,133 psi | 66% | 2657 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 84% | 41,176 psi | 66% | 2753 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 96% | 38,769 psi | 62% | 2723 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 50,952 psi | 82% | 2822 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,385 psi | 79% | 2815 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 32,445 psi | 52% | 2470 fps | 96.6% |
| Norma 204 | <<locked>> | 80% | 47,834 psi | 77% | 2825 fps | 98.4% |
| Norma 217 | <<locked>> | 92% | 34,011 psi | 55% | 2628 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 39,581 psi | 63% | 2730 fps | 97.9% |
| Norma URP | <<locked>> | 80% | 48,878 psi | 78% | 2835 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 38,203 psi | 61% | 2694 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 47,776 psi | 77% | 2831 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 34,272 psi | 55% | 2572 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,674 psi | 46% | 1742 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,198 psi | 80% | 2867 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,443 psi | 78% | 2887 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 82% | 32,111 psi | 51% | 2582 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 45,440 psi | 73% | 2874 fps | 96.1% |
| Rottweil R 904 | <<locked>> | 80% | 42,757 psi | 69% | 2700 fps | 96.2% |
| Rottweil R 905 | <<locked>> | 80% | 40,988 psi | 66% | 2703 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 80% | 51,909 psi | 83% | 2848 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,952 psi | 82% | 2822 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,385 psi | 79% | 2815 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,893 psi | 80% | 2772 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,654 psi | 65% | 2697 fps | 96.9% |
| Somchem S361 | <<locked>> | 80% | 43,729 psi | 70% | 2690 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 46,050 psi | 74% | 2785 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,669 psi | 67% | 2687 fps | 98% |
| Vihtavuori N160 | <<locked>> | 80% | 50,285 psi | 81% | 2828 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,216 psi | 58% | 2559 fps | 96% |
| Vihtavuori N550 | <<locked>> | 80% | 49,661 psi | 80% | 2831 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,625 psi | 65% | 2700 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 42,482 psi | 68% | 2782 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 86% | 40,176 psi | 64% | 2713 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 94% | 46,427 psi | 74% | 2884 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,559 psi | 79% | 2782 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,924 psi | 83% | 2907 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 32,953 psi | 53% | 2648 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,305 psi | 61% | 2612 fps | 96.1% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 68 powders for 6 x 62 Freres loaded with the .243 | 107gr | Sierra MatchKing. Hodgdon Retumbo delivers the highest muzzle velocity at 3,071 fps; across all powders the maximum-charge window runs from 1,903 fps to 3,071 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 107.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.