Load Specifications
Load data in caliber 6 x 62 R Freres with .243 | 115gr | Barnes RNSP bullet and 58 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N570, Hodgdon Retumbo and ReloadSwiss RS 76.
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>> | 88% | 54,012 psi | 87% | 2805 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 55,883 psi | 90% | 2959 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 86% | 53,011 psi | 85% | 2900 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 86% | 55,506 psi | 89% | 2894 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 88% | 53,679 psi | 86% | 2900 fps | 99.3% |
| ADI AR 2217 | <<locked>> | 98% | 55,840 psi | 90% | 2930 fps | 99.7% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 52,344 psi | 84% | 2963 fps | 96.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 54,520 psi | 87% | 2953 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 55,506 psi | 89% | 2887 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 55,579 psi | 89% | 2884 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 54,911 psi | 88% | 2877 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 88% | 54,172 psi | 87% | 2897 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 90% | 55,666 psi | 89% | 2864 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 55,927 psi | 90% | 2933 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 52,417 psi | 84% | 2890 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 53,708 psi | 86% | 2949 fps | 97.1% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 54,476 psi | 87% | 2861 fps | 97.4% |
| Bofors RP15 | <<locked>> | 90% | 53,403 psi | 86% | 2884 fps | 99.7% |
| Bofors RP30 | <<locked>> | 96% | 55,767 psi | 89% | 2943 fps | 99.7% |
| Bofors RP5 | <<locked>> | 88% | 54,172 psi | 87% | 2897 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 94% | 53,490 psi | 86% | 2894 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 86% | 52,924 psi | 85% | 2835 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 55,724 psi | 89% | 2877 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 55,666 psi | 89% | 2805 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 54,868 psi | 88% | 3012 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,565 psi | 60% | 1850 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 54,273 psi | 87% | 2815 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 54,665 psi | 88% | 2818 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 53,824 psi | 86% | 2822 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 90% | 55,622 psi | 89% | 2936 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 49,951 psi | 80% | 2864 fps | 99.1% |
| Lovex S070 | <<locked>> | 82% | 56,333 psi | 90% | 2844 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 55,869 psi | 90% | 2835 fps | 100% |
| Norma 204 | <<locked>> | 82% | 55,216 psi | 89% | 2867 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 50,546 psi | 81% | 2887 fps | 100% |
| Norma MRP | <<locked>> | 86% | 54,215 psi | 87% | 2913 fps | 100% |
| Norma URP | <<locked>> | 82% | 56,246 psi | 90% | 2861 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 52,721 psi | 85% | 2897 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 82% | 55,187 psi | 88% | 2867 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 55,317 psi | 89% | 2890 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,537 psi | 62% | 1893 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 55,579 psi | 89% | 3002 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 55,042 psi | 88% | 2959 fps | 99% |
| Rottweil R 904 | <<locked>> | 86% | 56,043 psi | 90% | 2861 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 86% | 54,563 psi | 87% | 2871 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 82% | 56,333 psi | 90% | 2844 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 54,172 psi | 87% | 2867 fps | 99.8% |
| Somchem S361 | <<locked>> | 84% | 53,896 psi | 86% | 2795 fps | 98.8% |
| Somchem S365 | <<locked>> | 82% | 54,012 psi | 87% | 2815 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 55,158 psi | 88% | 2844 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 54,926 psi | 88% | 2828 fps | 100% |
| Vihtavuori N555 | <<locked>> | 86% | 54,041 psi | 87% | 2841 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 53,795 psi | 86% | 2913 fps | 99% |
| Vihtavuori N565 | <<locked>> | 92% | 54,476 psi | 87% | 2900 fps | 99.2% |
| Vihtavuori N568 | <<locked>> | 96% | 55,782 psi | 89% | 2966 fps | 98.7% |
| Vihtavuori N570 | <<locked>> | 96% | 52,678 psi | 84% | 2953 fps | 96.4% |
| Winchester StaBALL HD | <<locked>> | 90% | 55,564 psi | 89% | 2953 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 54,868 psi | 88% | 2838 fps | 99.8% |
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% | 41,336 psi | 66% | 2592 fps | 99.5% |
| Accurate High Country | <<locked>> | 80% | 45,063 psi | 72% | 2766 fps | 97.8% |
| Accurate MAGPRO | <<locked>> | 80% | 42,743 psi | 69% | 2707 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 80% | 45,223 psi | 73% | 2717 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 80% | 40,611 psi | 65% | 2654 fps | 96.4% |
| ADI AR 2217 | <<locked>> | 86% | 37,072 psi | 59% | 2572 fps | 95.6% |
| ADI AR 2218 | <<locked>> | 98% | 48,820 psi | 78% | 2890 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 82% | 29,515 psi | 47% | 2411 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 45,701 psi | 73% | 2717 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 51,924 psi | 83% | 2831 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 45,281 psi | 73% | 2710 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 41,278 psi | 66% | 2661 fps | 97.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 39,885 psi | 64% | 2608 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,490 psi | 55% | 2539 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 44,976 psi | 72% | 2766 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 49,734 psi | 80% | 2881 fps | 96.1% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 48,022 psi | 77% | 2746 fps | 95.8% |
| Bofors RP15 | <<locked>> | 80% | 38,479 psi | 62% | 2598 fps | 96.9% |
| Bofors RP30 | <<locked>> | 84% | 36,782 psi | 59% | 2582 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 41,278 psi | 66% | 2661 fps | 97.9% |
| Hodgdon H1000 | <<locked>> | 82% | 35,099 psi | 56% | 2526 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 80% | 43,163 psi | 69% | 2657 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 42,438 psi | 68% | 2641 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 48,878 psi | 78% | 2707 fps | 100% |
| Hodgdon Retumbo | 47.7 gr | 80% | 33,649 psi | 54% | 2562 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,195 psi | 45% | 1657 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 50,879 psi | 82% | 2762 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 51,474 psi | 83% | 2772 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 44,324 psi | 71% | 2651 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 80% | 39,320 psi | 63% | 2635 fps | 96.1% |
| IMR 8133 Enduron | <<locked>> | 92% | 37,797 psi | 61% | 2625 fps | 95.9% |
| Lovex S070 | <<locked>> | 80% | 53,113 psi | 85% | 2795 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,578 psi | 57% | 2467 fps | 98.4% |
| Norma 204 | <<locked>> | 80% | 51,677 psi | 83% | 2812 fps | 99.5% |
| Norma 217 | <<locked>> | 86% | 31,067 psi | 50% | 2474 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 43,598 psi | 70% | 2730 fps | 99.3% |
| Norma URP | <<locked>> | 80% | 52,910 psi | 85% | 2812 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 39,117 psi | 63% | 2641 fps | 96.5% |
| Ramshot Hunter | <<locked>> | 80% | 51,677 psi | 83% | 2812 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 35,157 psi | 56% | 2520 fps | 97% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,877 psi | 46% | 1696 fps | 100% |
| ReloadSwiss RS 76 | 51.1 gr | 80% | 32,938 psi | 53% | 2539 fps | 97% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 40,640 psi | 65% | 2694 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 46,180 psi | 74% | 2694 fps | 98% |
| Rottweil R 905 | <<locked>> | 80% | 44,744 psi | 72% | 2700 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 80% | 53,113 psi | 85% | 2795 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 44,396 psi | 71% | 2697 fps | 98.6% |
| Somchem S361 | <<locked>> | 80% | 47,224 psi | 76% | 2684 fps | 97.6% |
| Somchem S365 | <<locked>> | 80% | 50,401 psi | 81% | 2762 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 45,266 psi | 73% | 2677 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 80% | 39,508 psi | 63% | 2556 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 44,367 psi | 71% | 2687 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 43,366 psi | 70% | 2720 fps | 96.8% |
| Vihtavuori N565 | <<locked>> | 82% | 38,653 psi | 62% | 2602 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 88% | 41,756 psi | 67% | 2707 fps | 95.2% |
| Vihtavuori N570 | 58.2 gr | 94% | 49,081 psi | 79% | 2887 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 37,536 psi | 60% | 2654 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,698 psi | 67% | 2608 fps | 98% |
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 58 powders for 6 x 62 R Freres loaded with the .243 | 115gr | Barnes RNSP. Hodgdon Retumbo delivers the highest muzzle velocity at 3,012 fps; across all powders the maximum-charge window runs from 1,850 fps to 3,012 fps. ADI AR 2218 gives the best case fill at 100 %, and 58 of the 58 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 115.0 gr projectile in 0.243" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, 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. Vihtavuori N570, Hodgdon Retumbo, ReloadSwiss RS 76 rank at the top here: for 6 x 62 R Freres with the .243 | 115gr | Barnes RNSP 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.