Load Specifications
Load data in caliber 6 x 62 R Freres with .243 | 70gr | Speer TNT bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Alliant Reloder-16 and Winchester 760.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 54,839 psi | 88% | 3353 fps | 97.3% |
| Accurate 3100 | <<locked>> | 98% | 54,607 psi | 88% | 3389 fps | 98.8% |
| Accurate 4064 | <<locked>> | 82% | 54,157 psi | 87% | 3366 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,825 psi | 90% | 3461 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 84% | 54,041 psi | 87% | 3392 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 94% | 53,461 psi | 86% | 3435 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,114 psi | 88% | 3422 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,143 psi | 88% | 3442 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 90% | 52,852 psi | 85% | 3468 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,302 psi | 87% | 3491 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 52,997 psi | 85% | 3415 fps | 96.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,476 psi | 87% | 3474 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 55,027 psi | 88% | 3474 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,747 psi | 77% | 3369 fps | 98.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 55,854 psi | 90% | 3560 fps | 99.8% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,359 psi | 86% | 3451 fps | 96.3% |
| Bofors RP3 | <<locked>> | 84% | 56,246 psi | 90% | 3435 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 54,476 psi | 87% | 3474 fps | 96.7% |
| Bofors RP7 | <<locked>> | 88% | 55,506 psi | 89% | 3406 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 52,794 psi | 85% | 3383 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 88% | 54,230 psi | 87% | 3448 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 86% | 53,447 psi | 86% | 3402 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,243 psi | 85% | 3383 fps | 100% |
| Hodgdon Superformance | <<locked>> | 88% | 55,085 psi | 88% | 3478 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,201 psi | 58% | 2300 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,301 psi | 85% | 3376 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,999 psi | 90% | 3406 fps | 98.1% |
| IMR 4350 | <<locked>> | 90% | 53,316 psi | 85% | 3373 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,505 psi | 86% | 3376 fps | 97.6% |
| IMR 4831 | <<locked>> | 92% | 56,434 psi | 90% | 3451 fps | 99.8% |
| Lovex S062 | <<locked>> | 82% | 53,621 psi | 86% | 3373 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 53,853 psi | 86% | 3373 fps | 98.8% |
| Lovex S070 | <<locked>> | 90% | 55,405 psi | 89% | 3419 fps | 98.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,341 psi | 78% | 3274 fps | 97.6% |
| Norma 203B | <<locked>> | 82% | 54,476 psi | 87% | 3425 fps | 99.9% |
| Norma 204 | <<locked>> | 90% | 54,230 psi | 87% | 3419 fps | 96.2% |
| Norma MRP | <<locked>> | 96% | 54,317 psi | 87% | 3504 fps | 98% |
| Norma URP | <<locked>> | 90% | 54,360 psi | 87% | 3442 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 82% | 55,695 psi | 89% | 3445 fps | 100% |
| Ramshot Hunter | <<locked>> | 90% | 53,417 psi | 86% | 3428 fps | 98.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,735 psi | 83% | 3386 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,840 psi | 59% | 2352 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,362 psi | 90% | 3422 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 53,519 psi | 86% | 3491 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 56,246 psi | 90% | 3478 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,505 psi | 87% | 3504 fps | 99.5% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,776 psi | 77% | 3396 fps | 96.9% |
| Rottweil R 902 | <<locked>> | 82% | 55,564 psi | 89% | 3392 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,333 psi | 90% | 3432 fps | 100% |
| Rottweil R 905 | <<locked>> | 96% | 55,956 psi | 90% | 3471 fps | 97% |
| Rottweil R 907 | <<locked>> | 88% | 55,506 psi | 89% | 3406 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 53,853 psi | 86% | 3373 fps | 98.8% |
| Shooters World Precision | <<locked>> | 82% | 53,621 psi | 86% | 3373 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,405 psi | 89% | 3419 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,288 psi | 87% | 3425 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,171 psi | 85% | 3261 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,592 psi | 86% | 3314 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,492 psi | 89% | 3461 fps | 96.9% |
| Somchem S355 | <<locked>> | 86% | 56,043 psi | 90% | 3428 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 54,375 psi | 87% | 3451 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,910 psi | 85% | 3373 fps | 97.2% |
| Vihtavuori N135 | <<locked>> | 82% | 55,985 psi | 90% | 3353 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,405 psi | 90% | 3363 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 54,012 psi | 87% | 3340 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,405 psi | 90% | 3438 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 56,304 psi | 90% | 3406 fps | 97.5% |
| Vihtavuori N540 | <<locked>> | 82% | 54,781 psi | 88% | 3350 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,738 psi | 89% | 3438 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 96% | 53,809 psi | 86% | 3445 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,779 psi | 85% | 3330 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,491 psi | 87% | 3451 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,692 psi | 83% | 3537 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,243 psi | 85% | 3363 fps | 96.2% |
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 2700 | <<locked>> | 80% | 51,184 psi | 82% | 3287 fps | 96.5% |
| Accurate 3100 | <<locked>> | 90% | 41,060 psi | 66% | 3117 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 50,705 psi | 81% | 3310 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,059 psi | 63% | 3114 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 80% | 47,500 psi | 76% | 3268 fps | 99% |
| ADI AR 2209 | <<locked>> | 92% | 49,980 psi | 80% | 3363 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,385 psi | 78% | 3297 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,677 psi | 83% | 3379 fps | 99.6% |
| Alliant Reloder-16 | 47.9 gr | 80% | 37,652 psi | 60% | 3123 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,381 psi | 70% | 3278 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 92% | 49,617 psi | 80% | 3346 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 50,908 psi | 82% | 3406 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 84% | 31,763 psi | 51% | 2946 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 94% | 39,102 psi | 63% | 3159 fps | 95.5% |
| Alliant Reloder-26 | 56.8 gr | 86% | 37,739 psi | 61% | 3163 fps | 95.8% |
| Bofors RP15 | <<locked>> | 98% | 49,864 psi | 80% | 3383 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 48,950 psi | 78% | 3307 fps | 99.9% |
| Bofors RP5 | <<locked>> | 96% | 50,908 psi | 82% | 3406 fps | 95.8% |
| Bofors RP7 | <<locked>> | 82% | 45,730 psi | 73% | 3212 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 49,429 psi | 79% | 3317 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 82% | 43,932 psi | 70% | 3235 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 84% | 50,082 psi | 80% | 3337 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,259 psi | 57% | 3002 fps | 97.1% |
| Hodgdon Superformance | <<locked>> | 84% | 47,253 psi | 76% | 3323 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,064 psi | 43% | 2073 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,937 psi | 80% | 3310 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,533 psi | 84% | 3343 fps | 97.5% |
| IMR 4350 | <<locked>> | 86% | 46,891 psi | 75% | 3245 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,193 psi | 71% | 3182 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 37,492 psi | 60% | 3058 fps | 96% |
| Lovex S062 | <<locked>> | 80% | 50,241 psi | 81% | 3310 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,655 psi | 67% | 3120 fps | 96% |
| Lovex S070 | <<locked>> | 82% | 42,801 psi | 69% | 3156 fps | 95.1% |
| Lovex S071 | <<locked>> | 96% | 42,279 psi | 68% | 3143 fps | 95.9% |
| Norma 203B | <<locked>> | 80% | 51,068 psi | 82% | 3363 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 50,749 psi | 81% | 3353 fps | 95.3% |
| Norma MRP | <<locked>> | 92% | 46,731 psi | 75% | 3353 fps | 96.1% |
| Norma URP | <<locked>> | 80% | 38,551 psi | 62% | 3107 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 80% | 51,909 psi | 83% | 3379 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 40,567 psi | 65% | 3156 fps | 95.1% |
| Ramshot Magnum | <<locked>> | 98% | 47,848 psi | 77% | 3307 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,485 psi | 44% | 2123 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,371 psi | 79% | 3291 fps | 97.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,050 psi | 74% | 3353 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,943 psi | 62% | 3123 fps | 96.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,869 psi | 61% | 3130 fps | 95.2% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 44,121 psi | 71% | 3307 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 52,069 psi | 83% | 3333 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,861 psi | 74% | 3238 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 92% | 48,559 psi | 78% | 3327 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 82% | 45,730 psi | 73% | 3212 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,655 psi | 67% | 3120 fps | 96% |
| Shooters World Precision | <<locked>> | 80% | 50,241 psi | 81% | 3310 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 42,801 psi | 69% | 3156 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,384 psi | 76% | 3297 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,847 psi | 75% | 3156 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 43,772 psi | 70% | 3117 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 51,532 psi | 83% | 3389 fps | 95.9% |
| Somchem S355 | <<locked>> | 80% | 46,108 psi | 74% | 3241 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 35,099 psi | 56% | 3051 fps | 98.4% |
| Somchem S385 | <<locked>> | 90% | 46,108 psi | 74% | 3235 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 52,344 psi | 84% | 3297 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,605 psi | 84% | 3304 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,034 psi | 71% | 3156 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 40,118 psi | 64% | 3114 fps | 96.7% |
| Vihtavuori N165 | <<locked>> | 96% | 48,921 psi | 78% | 3274 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 51,387 psi | 82% | 3291 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,798 psi | 64% | 3110 fps | 96.4% |
| Vihtavuori N555 | <<locked>> | 84% | 35,331 psi | 57% | 3038 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,552 psi | 63% | 3071 fps | 98.8% |
| Winchester 760 | 51.8 gr | 82% | 44,193 psi | 71% | 3238 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 86% | 30,429 psi | 49% | 2979 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 94% | 49,414 psi | 79% | 3291 fps | 95.2% |
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 90 powders for 6 x 62 R Freres loaded with the .243 | 70gr | Speer TNT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,560 fps; across all powders the maximum-charge window runs from 2,300 fps to 3,560 fps. ADI AR 2225 gives the best case fill at 100 %, and 90 of the 90 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 70.0 gr projectile in 0.243" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-23, Alliant Reloder-25 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. Alliant Reloder-26, Alliant Reloder-16, Winchester 760 rank at the top here: for 6 x 62 R Freres with the .243 | 70gr | Speer TNT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2225, Baschieri & Pellagri 109 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.