Load Specifications
Load data in caliber 6 x 62 Freres with .243 | 115gr | DTAC RBT Closed Nose - Boron Nitride bullet and 64 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 ReloadSwiss RS 80.
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% | 55,187 psi | 88% | 2822 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 55,622 psi | 89% | 2841 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 53,882 psi | 86% | 2913 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 86% | 52,866 psi | 85% | 2848 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 90% | 54,592 psi | 88% | 2913 fps | 99.2% |
| ADI AR 2217 | <<locked>> | 98% | 52,939 psi | 85% | 2881 fps | 99.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 51,343 psi | 82% | 2904 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 53,142 psi | 85% | 2844 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 56,072 psi | 90% | 2894 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 90% | 54,998 psi | 88% | 2910 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 90% | 53,185 psi | 85% | 2831 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 52,924 psi | 85% | 2890 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 53,359 psi | 86% | 2907 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 54,244 psi | 87% | 2959 fps | 97% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 55,883 psi | 90% | 2874 fps | 97.4% |
| Bofors RP15 | <<locked>> | 92% | 54,201 psi | 87% | 2894 fps | 99.7% |
| Bofors RP30 | <<locked>> | 98% | 56,231 psi | 90% | 2949 fps | 99.7% |
| Bofors RP5 | <<locked>> | 90% | 54,998 psi | 88% | 2910 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 96% | 54,447 psi | 87% | 2904 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 88% | 54,186 psi | 87% | 2848 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 53,243 psi | 85% | 2835 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 53,374 psi | 86% | 2772 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 55,448 psi | 89% | 3022 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,536 psi | 60% | 1837 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 55,622 psi | 89% | 2831 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 56,202 psi | 90% | 2838 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 55,071 psi | 88% | 2835 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 90% | 52,895 psi | 85% | 2894 fps | 99.1% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 46,702 psi | 75% | 2808 fps | 98.4% |
| Lovex S065 | <<locked>> | 82% | 55,869 psi | 90% | 2808 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 54,244 psi | 87% | 2808 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 52,939 psi | 85% | 2789 fps | 100% |
| Norma 204 | <<locked>> | 82% | 52,910 psi | 85% | 2828 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 47,384 psi | 76% | 2838 fps | 99.8% |
| Norma MRP | <<locked>> | 88% | 55,027 psi | 88% | 2927 fps | 100% |
| Norma URP | <<locked>> | 82% | 53,969 psi | 87% | 2825 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 53,896 psi | 86% | 2913 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 82% | 52,837 psi | 85% | 2828 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 56,318 psi | 90% | 2904 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,261 psi | 61% | 1873 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 55,999 psi | 90% | 2867 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 54,418 psi | 87% | 2890 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 56,159 psi | 90% | 3012 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 55,854 psi | 90% | 2976 fps | 98.9% |
| Rottweil R 904 | <<locked>> | 86% | 53,809 psi | 86% | 2822 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 88% | 55,985 psi | 90% | 2887 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 82% | 55,869 psi | 90% | 2808 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 54,244 psi | 87% | 2808 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 54,810 psi | 88% | 2762 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 55,579 psi | 89% | 2884 fps | 99.8% |
| Somchem S361 | <<locked>> | 86% | 55,274 psi | 89% | 2812 fps | 98.8% |
| Somchem S365 | <<locked>> | 84% | 55,056 psi | 88% | 2828 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 56,318 psi | 90% | 2858 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 55,477 psi | 89% | 2815 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 56,028 psi | 90% | 2838 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 82% | 54,723 psi | 88% | 2818 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 55,172 psi | 88% | 2858 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 54,621 psi | 88% | 2923 fps | 98.9% |
| Vihtavuori N565 | <<locked>> | 94% | 55,172 psi | 88% | 2910 fps | 99.2% |
| Vihtavuori N568 | <<locked>> | 96% | 52,518 psi | 84% | 2913 fps | 97.9% |
| Vihtavuori N570 | <<locked>> | 98% | 53,171 psi | 85% | 2963 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 55,100 psi | 88% | 2769 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 55,753 psi | 89% | 2959 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 55,999 psi | 90% | 2851 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% | 39,334 psi | 63% | 2549 fps | 99.1% |
| Accurate 4350 | <<locked>> | 80% | 52,098 psi | 84% | 2789 fps | 100% |
| Accurate MAGPRO | <<locked>> | 82% | 43,584 psi | 70% | 2723 fps | 96% |
| ADI AR 2209 | <<locked>> | 80% | 43,163 psi | 69% | 2674 fps | 98.1% |
| ADI AR 2213 | <<locked>> | 80% | 38,725 psi | 62% | 2608 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 88% | 37,710 psi | 60% | 2582 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 84% | 29,965 psi | 48% | 2425 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 49,719 psi | 80% | 2792 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 43,294 psi | 69% | 2671 fps | 98.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 39,247 psi | 63% | 2618 fps | 97.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 37,942 psi | 61% | 2572 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,692 psi | 52% | 2490 fps | 98.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 42,453 psi | 68% | 2723 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 50,372 psi | 81% | 2894 fps | 96% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 49,298 psi | 79% | 2759 fps | 95.8% |
| Bofors RP15 | <<locked>> | 80% | 36,492 psi | 59% | 2552 fps | 96.1% |
| Bofors RP30 | <<locked>> | 86% | 37,304 psi | 60% | 2595 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 39,247 psi | 63% | 2618 fps | 97.2% |
| Hodgdon H1000 | <<locked>> | 84% | 35,824 psi | 57% | 2539 fps | 95.5% |
| Hodgdon H4831 | <<locked>> | 80% | 41,307 psi | 66% | 2615 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 40,567 psi | 65% | 2598 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 46,847 psi | 75% | 2674 fps | 100% |
| Hodgdon Retumbo | 46.9 gr | 82% | 34,287 psi | 55% | 2582 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,007 psi | 45% | 1640 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 48,892 psi | 78% | 2723 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 49,226 psi | 79% | 2733 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 42,525 psi | 68% | 2608 fps | 96.4% |
| IMR 7828 SSC | <<locked>> | 80% | 37,405 psi | 60% | 2589 fps | 95.1% |
| IMR 8133 Enduron | <<locked>> | 94% | 38,072 psi | 61% | 2631 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 52,562 psi | 84% | 2759 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 51,010 psi | 82% | 2756 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 33,794 psi | 54% | 2428 fps | 97.8% |
| Norma 204 | <<locked>> | 80% | 49,647 psi | 80% | 2772 fps | 99.1% |
| Norma 217 | <<locked>> | 88% | 31,227 psi | 50% | 2480 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 41,510 psi | 67% | 2687 fps | 98.9% |
| Norma URP | <<locked>> | 80% | 50,647 psi | 81% | 2772 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 37,173 psi | 60% | 2592 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 49,647 psi | 80% | 2779 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 33,228 psi | 53% | 2474 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,703 psi | 46% | 1680 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 52,243 psi | 84% | 2812 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 50,633 psi | 81% | 2835 fps | 100% |
| ReloadSwiss RS 76 | 49 gr | 80% | 31,227 psi | 50% | 2487 fps | 95.8% |
| ReloadSwiss RS 80 | 55.5 gr | 90% | 40,857 psi | 66% | 2700 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 44,237 psi | 71% | 2651 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 80% | 42,627 psi | 68% | 2657 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 52,562 psi | 84% | 2759 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 51,010 psi | 82% | 2756 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 51,488 psi | 83% | 2713 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 42,293 psi | 68% | 2651 fps | 98% |
| Somchem S361 | <<locked>> | 80% | 45,353 psi | 73% | 2641 fps | 96.9% |
| Somchem S365 | <<locked>> | 80% | 47,964 psi | 77% | 2726 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 43,294 psi | 69% | 2638 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 80% | 52,083 psi | 84% | 2766 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,652 psi | 60% | 2513 fps | 97.2% |
| Vihtavuori N550 | <<locked>> | 80% | 51,430 psi | 82% | 2772 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 42,351 psi | 68% | 2648 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 41,408 psi | 66% | 2680 fps | 96% |
| Vihtavuori N565 | <<locked>> | 84% | 39,291 psi | 63% | 2615 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 90% | 42,235 psi | 68% | 2720 fps | 95.1% |
| Vihtavuori N570 | <<locked>> | 96% | 49,676 psi | 80% | 2900 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 51,488 psi | 83% | 2720 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 35,099 psi | 56% | 2612 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,610 psi | 64% | 2566 fps | 97.2% |
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 64 powders for 6 x 62 Freres loaded with the .243 | 115gr | DTAC RBT Closed Nose - Boron Nitride. Hodgdon Retumbo delivers the highest muzzle velocity at 3,022 fps; across all powders the maximum-charge window runs from 1,837 fps to 3,022 fps. ADI AR 2225 gives the best case fill at 100 %, and 64 of the 64 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 1:7.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-33, 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, ReloadSwiss RS 80 rank at the top here: for 6 x 62 Freres with the .243 | 115gr | DTAC RBT Closed Nose - Boron Nitride 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.