Load Specifications
Load data in caliber 6 x 62 Freres with .243 | 80gr | Osprey Virtus bullet and 77 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 2700 | <<locked>> | 82% | 55,593 psi | 89% | 3215 fps | 98.2% |
| Accurate 3100 | <<locked>> | 98% | 55,680 psi | 89% | 3261 fps | 99.5% |
| Accurate 4064 | <<locked>> | 82% | 54,795 psi | 88% | 3212 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 53,026 psi | 85% | 3258 fps | 99.8% |
| Accurate High Country | <<locked>> | 94% | 53,156 psi | 85% | 3340 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 84% | 55,172 psi | 88% | 3251 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,462 psi | 87% | 3304 fps | 97.4% |
| ADI AR 2213 | <<locked>> | 98% | 56,202 psi | 90% | 3360 fps | 96.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 54,665 psi | 88% | 3301 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,014 psi | 90% | 3274 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,014 psi | 90% | 3294 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,128 psi | 87% | 3330 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,550 psi | 89% | 3350 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,969 psi | 87% | 3287 fps | 97.4% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,622 psi | 89% | 3353 fps | 97.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 52,547 psi | 84% | 3278 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,631 psi | 78% | 3251 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,069 psi | 85% | 3356 fps | 99.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,433 psi | 87% | 3327 fps | 97.5% |
| Bofors RP3 | <<locked>> | 82% | 53,374 psi | 86% | 3228 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 55,622 psi | 89% | 3353 fps | 97.9% |
| Bofors RP7 | <<locked>> | 88% | 56,318 psi | 90% | 3268 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 82% | 53,650 psi | 86% | 3241 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 88% | 55,230 psi | 89% | 3314 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 86% | 54,462 psi | 87% | 3271 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,520 psi | 87% | 3248 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,747 psi | 77% | 3287 fps | 96.8% |
| Hodgdon Superformance | <<locked>> | 88% | 56,202 psi | 90% | 3346 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,405 psi | 58% | 2162 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,288 psi | 87% | 3228 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,462 psi | 87% | 3245 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,549 psi | 87% | 3241 fps | 98.6% |
| IMR 4831 | <<locked>> | 90% | 53,621 psi | 86% | 3251 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 98% | 53,548 psi | 86% | 3320 fps | 96.1% |
| Lovex S062 | <<locked>> | 82% | 54,476 psi | 87% | 3222 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,578 psi | 88% | 3235 fps | 99.4% |
| Lovex S070 | <<locked>> | 90% | 56,376 psi | 90% | 3284 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,950 psi | 78% | 3143 fps | 98.5% |
| Norma 203B | <<locked>> | 82% | 55,332 psi | 89% | 3278 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,463 psi | 89% | 3294 fps | 97.4% |
| Norma MRP | <<locked>> | 96% | 55,288 psi | 89% | 3376 fps | 98.9% |
| Norma URP | <<locked>> | 90% | 55,550 psi | 89% | 3307 fps | 99.9% |
| Ramshot Grand | <<locked>> | 98% | 54,331 psi | 87% | 3343 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 90% | 54,621 psi | 88% | 3297 fps | 99.3% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,634 psi | 84% | 3268 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,840 psi | 59% | 2205 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,635 psi | 86% | 3222 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,607 psi | 88% | 3340 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,432 psi | 86% | 3281 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,767 psi | 89% | 3373 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,327 psi | 77% | 3281 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 82% | 56,304 psi | 90% | 3238 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 53,548 psi | 86% | 3225 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,869 psi | 90% | 3271 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 94% | 53,185 psi | 85% | 3271 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 88% | 56,318 psi | 90% | 3268 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,578 psi | 88% | 3235 fps | 99.4% |
| Shooters World Precision | <<locked>> | 82% | 54,476 psi | 87% | 3222 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,376 psi | 90% | 3284 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,347 psi | 89% | 3287 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,056 psi | 87% | 3114 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,375 psi | 87% | 3182 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 52,736 psi | 85% | 3268 fps | 97.2% |
| Somchem S355 | <<locked>> | 84% | 53,258 psi | 85% | 3222 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 55,288 psi | 89% | 3304 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 53,766 psi | 86% | 3241 fps | 98.2% |
| Vihtavuori N150 | <<locked>> | 86% | 54,723 psi | 88% | 3192 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,867 psi | 86% | 3241 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 98% | 53,592 psi | 86% | 3219 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 82% | 55,637 psi | 89% | 3199 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 53,084 psi | 85% | 3241 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 96% | 54,781 psi | 88% | 3307 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,317 psi | 89% | 3363 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,780 psi | 86% | 3196 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,550 psi | 89% | 3320 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,359 psi | 86% | 3409 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,215 psi | 87% | 3238 fps | 97.4% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 80% | 51,982 psi | 83% | 3153 fps | 97.6% |
| Accurate 3100 | <<locked>> | 88% | 38,783 psi | 62% | 2930 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 51,140 psi | 82% | 3153 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,668 psi | 64% | 2989 fps | 97.7% |
| Accurate High Country | <<locked>> | 92% | 49,472 psi | 79% | 3268 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 48,472 psi | 78% | 3130 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 90% | 47,514 psi | 76% | 3169 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 96% | 52,330 psi | 84% | 3287 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 47,819 psi | 77% | 3166 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,153 psi | 79% | 3156 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,620 psi | 84% | 3235 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,261 psi | 61% | 2999 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,367 psi | 71% | 3150 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 47,253 psi | 76% | 3159 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 44,860 psi | 72% | 3140 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 82% | 30,052 psi | 48% | 2769 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 92% | 36,912 psi | 59% | 2972 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 84% | 35,462 psi | 57% | 2969 fps | 96% |
| Bofors RP15 | <<locked>> | 96% | 47,485 psi | 76% | 3196 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 49,763 psi | 80% | 3166 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 44,860 psi | 72% | 3140 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 43,352 psi | 70% | 3015 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 50,082 psi | 80% | 3176 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 80% | 41,771 psi | 67% | 3041 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 80% | 44,628 psi | 72% | 3074 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,795 psi | 57% | 2877 fps | 98.3% |
| Hodgdon Retumbo | <<locked>> | 98% | 44,512 psi | 71% | 3212 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 41,133 psi | 66% | 3051 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,064 psi | 43% | 1942 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,981 psi | 82% | 3173 fps | 99.9% |
| IMR 4350 | <<locked>> | 82% | 41,771 psi | 67% | 2989 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,889 psi | 72% | 3051 fps | 96.5% |
| IMR 4831 | <<locked>> | 80% | 37,826 psi | 61% | 2930 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 96% | 49,835 psi | 80% | 3248 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 51,184 psi | 82% | 3166 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,119 psi | 68% | 2989 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 40,350 psi | 65% | 2959 fps | 95.4% |
| Lovex S071 | <<locked>> | 92% | 37,376 psi | 60% | 2897 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 51,967 psi | 83% | 3222 fps | 100% |
| Norma 204 | <<locked>> | 86% | 47,892 psi | 77% | 3156 fps | 95.6% |
| Norma MRP | <<locked>> | 88% | 41,002 psi | 66% | 3081 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 39,175 psi | 63% | 2979 fps | 97.5% |
| Ramshot Grand | <<locked>> | 96% | 50,415 psi | 81% | 3264 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 38,334 psi | 61% | 2963 fps | 95.5% |
| Ramshot Magnum | <<locked>> | 96% | 44,889 psi | 72% | 3117 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,514 psi | 44% | 1985 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,169 psi | 80% | 3159 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,152 psi | 76% | 3215 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,668 psi | 64% | 3002 fps | 97.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,363 psi | 62% | 3009 fps | 96.7% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 41,568 psi | 67% | 3120 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 52,924 psi | 85% | 3182 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,499 psi | 75% | 3100 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 52,417 psi | 84% | 3209 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 90% | 46,079 psi | 74% | 3133 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 43,352 psi | 70% | 3015 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,119 psi | 68% | 2989 fps | 97.2% |
| Shooters World Precision | <<locked>> | 80% | 51,184 psi | 82% | 3166 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,350 psi | 65% | 2959 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,254 psi | 77% | 3163 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,616 psi | 76% | 3012 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,481 psi | 67% | 2930 fps | 95.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 45,672 psi | 73% | 3127 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 46,717 psi | 75% | 3104 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 35,810 psi | 57% | 2930 fps | 99.3% |
| Somchem S385 | <<locked>> | 88% | 43,642 psi | 70% | 3045 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 44,672 psi | 72% | 3022 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,886 psi | 66% | 2989 fps | 97.9% |
| Vihtavuori N165 | <<locked>> | 92% | 43,294 psi | 69% | 3022 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 52,054 psi | 83% | 3143 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,306 psi | 65% | 2982 fps | 97.6% |
| Vihtavuori N555 | <<locked>> | 82% | 33,475 psi | 54% | 2854 fps | 96.1% |
| Vihtavuori N560 | <<locked>> | 94% | 51,517 psi | 83% | 3287 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,103 psi | 64% | 2946 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 41,771 psi | 67% | 3041 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 84% | 28,543 psi | 46% | 2795 fps | 96.1% |
| Winchester Supreme 780 | <<locked>> | 92% | 46,833 psi | 75% | 3104 fps | 95.6% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 77 powders for 6 x 62 Freres loaded with the .243 | 80gr | Osprey Virtus. Winchester StaBALL HD delivers the highest muzzle velocity at 3,409 fps; across all powders the maximum-charge window runs from 2,162 fps to 3,409 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 77 of the 77 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 80.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Bofors RP15, Hodgdon Retumbo 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.