Load Specifications
Load data in caliber 6 x 62 Freres with .243 | 75gr | Barnes X S bullet and 59 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>> | 96% | 56,333 psi | 90% | 3330 fps | 99.3% |
| Accurate 4350 | <<locked>> | 86% | 53,577 psi | 86% | 3330 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 82% | 54,433 psi | 87% | 3304 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 92% | 53,722 psi | 86% | 3350 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,724 psi | 89% | 3337 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,563 psi | 86% | 3386 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,737 psi | 88% | 3409 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 53,476 psi | 86% | 3340 fps | 96.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,492 psi | 89% | 3412 fps | 97.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 56,376 psi | 90% | 3406 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,243 psi | 84% | 3379 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 92% | 53,040 psi | 85% | 3425 fps | 99.8% |
| Bofors RP15 | <<locked>> | 98% | 54,433 psi | 87% | 3389 fps | 97% |
| Bofors RP5 | <<locked>> | 96% | 55,492 psi | 89% | 3412 fps | 97.4% |
| Bofors RP7 | <<locked>> | 86% | 56,115 psi | 90% | 3327 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 86% | 54,911 psi | 88% | 3369 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 84% | 53,969 psi | 87% | 3323 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,244 psi | 87% | 3307 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,329 psi | 82% | 3425 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 86% | 55,216 psi | 89% | 3392 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,782 psi | 59% | 2228 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 53,708 psi | 86% | 3294 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,751 psi | 86% | 3291 fps | 98.1% |
| IMR 4831 | <<locked>> | 88% | 53,896 psi | 86% | 3320 fps | 99.8% |
| Lovex S065 | <<locked>> | 86% | 54,752 psi | 88% | 3301 fps | 99.2% |
| Lovex S070 | <<locked>> | 86% | 53,113 psi | 85% | 3284 fps | 98.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,911 psi | 86% | 3287 fps | 99% |
| Norma 204 | <<locked>> | 88% | 54,810 psi | 88% | 3346 fps | 96.8% |
| Norma MRP | <<locked>> | 94% | 55,230 psi | 89% | 3438 fps | 98.5% |
| Norma URP | <<locked>> | 88% | 55,419 psi | 89% | 3369 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 88% | 54,302 psi | 87% | 3356 fps | 99% |
| Ramshot Magnum | <<locked>> | 98% | 52,518 psi | 84% | 3320 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,608 psi | 60% | 2280 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,882 psi | 86% | 3399 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 53,374 psi | 86% | 3340 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,100 psi | 88% | 3425 fps | 99.8% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,286 psi | 84% | 3422 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 82% | 54,027 psi | 87% | 3297 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,448 psi | 89% | 3323 fps | 95.9% |
| Rottweil R 905 | <<locked>> | 92% | 53,055 psi | 85% | 3330 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 86% | 56,115 psi | 90% | 3327 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,752 psi | 88% | 3301 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 86% | 53,113 psi | 85% | 3284 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,795 psi | 88% | 3343 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,737 psi | 86% | 3173 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,128 psi | 87% | 3235 fps | 98.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,159 psi | 90% | 3389 fps | 97.5% |
| Somchem S355 | <<locked>> | 82% | 53,737 psi | 86% | 3291 fps | 100% |
| Somchem S365 | <<locked>> | 90% | 55,259 psi | 89% | 3373 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 53,983 psi | 87% | 3307 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 84% | 54,737 psi | 88% | 3258 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 53,417 psi | 86% | 3297 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 96% | 53,272 psi | 85% | 3271 fps | 97.4% |
| Vihtavuori N550 | <<locked>> | 86% | 53,272 psi | 85% | 3304 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 94% | 55,332 psi | 89% | 3379 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 53,243 psi | 85% | 3251 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,911 psi | 88% | 3369 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 98% | 53,214 psi | 85% | 3478 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 53,664 psi | 86% | 3287 fps | 96.8% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 84% | 38,014 psi | 61% | 2959 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 43,903 psi | 70% | 3140 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 51,082 psi | 82% | 3241 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 50,343 psi | 81% | 3284 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,344 psi | 84% | 3278 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,437 psi | 66% | 3136 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,630 psi | 76% | 3278 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 88% | 47,065 psi | 75% | 3212 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 92% | 48,414 psi | 78% | 3278 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,647 psi | 51% | 2864 fps | 96.3% |
| Alliant Reloder-25 | <<locked>> | 90% | 38,014 psi | 61% | 3054 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 82% | 36,854 psi | 59% | 3061 fps | 96.1% |
| Bofors RP15 | <<locked>> | 94% | 47,732 psi | 77% | 3258 fps | 95.3% |
| Bofors RP5 | <<locked>> | 92% | 48,414 psi | 78% | 3278 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 46,514 psi | 75% | 3140 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 45,107 psi | 72% | 3176 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 47,587 psi | 76% | 3196 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,363 psi | 63% | 3018 fps | 98.8% |
| Hodgdon Retumbo | <<locked>> | 96% | 45,150 psi | 72% | 3278 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 44,570 psi | 71% | 3182 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,702 psi | 44% | 2008 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 44,773 psi | 72% | 3114 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,718 psi | 77% | 3173 fps | 96.8% |
| IMR 4831 | <<locked>> | 80% | 41,713 psi | 67% | 3077 fps | 97.9% |
| Lovex S065 | <<locked>> | 80% | 45,745 psi | 73% | 3123 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 44,092 psi | 71% | 3100 fps | 96.1% |
| Lovex S071 | <<locked>> | 90% | 39,523 psi | 63% | 2999 fps | 95.6% |
| Norma 204 | <<locked>> | 84% | 47,935 psi | 77% | 3212 fps | 95% |
| Norma MRP | <<locked>> | 86% | 41,901 psi | 67% | 3159 fps | 95% |
| Norma URP | <<locked>> | 80% | 42,772 psi | 69% | 3120 fps | 98% |
| Ramshot Hunter | <<locked>> | 80% | 41,698 psi | 67% | 3097 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 94% | 45,527 psi | 73% | 3182 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,253 psi | 45% | 2057 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,328 psi | 81% | 3343 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,497 psi | 70% | 3146 fps | 98% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,829 psi | 67% | 3150 fps | 97.4% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 42,293 psi | 68% | 3189 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 50,647 psi | 81% | 3238 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 51,996 psi | 83% | 3264 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 88% | 46,485 psi | 75% | 3199 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 46,514 psi | 75% | 3140 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,745 psi | 73% | 3123 fps | 97.7% |
| Shooters World SW4350 | <<locked>> | 80% | 44,092 psi | 71% | 3100 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,445 psi | 82% | 3287 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,386 psi | 81% | 3120 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,802 psi | 72% | 3054 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 49,211 psi | 79% | 3258 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 50,459 psi | 81% | 3232 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 39,653 psi | 64% | 3077 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 44,643 psi | 72% | 3120 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 48,225 psi | 77% | 3146 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,063 psi | 71% | 3117 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 92% | 46,789 psi | 75% | 3150 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 43,903 psi | 70% | 3120 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 35,404 psi | 57% | 2959 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,323 psi | 69% | 3071 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 45,107 psi | 72% | 3176 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,558 psi | 46% | 2838 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 90% | 46,978 psi | 75% | 3159 fps | 95% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 59 powders for 6 x 62 Freres loaded with the .243 | 75gr | Barnes X S. Winchester StaBALL HD delivers the highest muzzle velocity at 3,478 fps; across all powders the maximum-charge window runs from 2,228 fps to 3,478 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 59 of the 59 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 75.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Hodgdon Retumbo, 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.