Load data for 6 x 62 Freres + .243 | 77gr | IBEX TRD

6 x 62 Freres cartridge drawing
IBEX logo

Load Specifications

Bullet Manufacturer:IBEX
Bullet Weight:77 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Case Length (l3):2.425"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:68 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:9.5

Load data in caliber 6 x 62 Freres with .243 | 77gr | IBEX TRD bullet and 62 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and Alliant Reloder-16.

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"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>96%55,999 psi90%3297 fps99.3%
Accurate 4350<<locked>>86%53,330 psi86%3294 fps99.7%
ADI AR 2208<<locked>>82%54,317 psi87%3268 fps99.9%
ADI AR 2209<<locked>>92%53,664 psi86%3320 fps96.8%
Alliant Power Pro Varmint<<locked>>92%54,041 psi87%3317 fps97%
Alliant Power Pro Varmint<<locked>>92%54,041 psi87%3317 fps97%
Alliant Reloder- TS 15.5<<locked>>82%55,680 psi89%3301 fps100%
Alliant Reloder-16<<locked>>88%53,316 psi85%3353 fps99.9%
Alliant Reloder-17<<locked>>84%54,592 psi88%3376 fps100%
Alliant Reloder-19<<locked>>92%53,388 psi86%3310 fps96.9%
Alliant Reloder-22<<locked>>96%54,926 psi88%3373 fps97.4%
Alliant Reloder-23<<locked>>98%55,796 psi89%3369 fps100%
Alliant Reloder-25ᴾ<<locked>>100%52,069 psi83%3350 fps99.6%
Alliant Reloder-26<<locked>>92%52,504 psi84%3386 fps99.8%
Bofors RP15<<locked>>98%54,157 psi87%3356 fps97.1%
Bofors RP5<<locked>>96%54,926 psi88%3373 fps97.4%
Bofors RP7<<locked>>86%55,912 psi90%3291 fps98.2%
Hodgdon H414<<locked>>86%54,810 psi88%3337 fps98.5%
Hodgdon H4350<<locked>>84%53,722 psi86%3287 fps97.2%
Hodgdon Hybrid 100V<<locked>>90%54,070 psi87%3274 fps100%
Hodgdon Retumboᴾ<<locked>>100%50,865 psi82%3386 fps97.3%
Hodgdon Superformance<<locked>>86%54,940 psi88%3360 fps98.4%
Hodgdon TrailBossᴾ<<locked>>100%36,767 psi59%2198 fps100%
IMR 4350<<locked>>88%53,534 psi86%3258 fps97.8%
IMR 4451 Enduron<<locked>>84%53,751 psi86%3258 fps98.2%
IMR 4831<<locked>>88%53,693 psi86%3284 fps99.8%
IMR 7828 SSC<<locked>>98%56,405 psi90%3406 fps96.3%
Lovex S065<<locked>>86%54,462 psi87%3261 fps99.2%
Lovex S070<<locked>>88%56,014 psi90%3304 fps98.8%
Lovex S071ᴾ<<locked>>100%53,606 psi86%3255 fps99%
Norma 204<<locked>>88%54,462 psi87%3310 fps96.9%
Norma MRP<<locked>>94%54,679 psi88%3399 fps98.5%
Norma URP<<locked>>88%54,940 psi88%3330 fps99.8%
Ramshot Hunter<<locked>>88%53,925 psi86%3320 fps99%
Ramshot Magnumᴾ<<locked>>100%55,956 psi90%3356 fps98.4%
ReloadSwiss RS 14ᴾ<<locked>>100%37,608 psi60%2247 fps100%
ReloadSwiss RS 60<<locked>>82%53,621 psi86%3366 fps100%
ReloadSwiss RS 62<<locked>>86%53,229 psi85%3310 fps99.6%
ReloadSwiss RS 70<<locked>>88%54,752 psi88%3389 fps99.8%
ReloadSwiss RS 76ᴾ<<locked>>100%52,025 psi83%3389 fps98.7%
Rottweil R 903<<locked>>82%53,940 psi86%3264 fps100%
Rottweil R 904<<locked>>92%55,042 psi88%3287 fps96%
Rottweil R 905<<locked>>94%56,260 psi90%3360 fps97.6%
Rottweil R 907<<locked>>86%55,912 psi90%3291 fps98.2%
Shooters World Long Rifle<<locked>>86%54,462 psi87%3261 fps99.2%
Shooters World SW4350<<locked>>88%56,014 psi90%3304 fps98.8%
SNPE Vectan SP 11<<locked>>82%54,824 psi88%3310 fps100%
SNPE Vectan Tubal 5000<<locked>>82%53,592 psi86%3136 fps100%
SNPE Vectan Tubal 7000<<locked>>86%53,925 psi86%3202 fps98.4%
SNPE Vectan Tubal 8000<<locked>>94%55,782 psi89%3350 fps97.5%
Somchem S355<<locked>>82%53,345 psi86%3251 fps100%
Somchem S365<<locked>>90%55,158 psi88%3340 fps100%
Somchem S385<<locked>>92%53,911 psi86%3278 fps97.9%
Vihtavuori N150<<locked>>84%54,491 psi87%3222 fps100%
Vihtavuori N160<<locked>>86%53,200 psi85%3261 fps99.7%
Vihtavuori N165<<locked>>96%52,968 psi85%3238 fps97.4%
Vihtavuori N550<<locked>>88%56,275 psi90%3327 fps99.8%
Vihtavuori N555<<locked>>94%55,245 psi89%3350 fps100%
Winchester 6.5 StaBALL<<locked>>86%52,910 psi85%3219 fps100%
Winchester 760<<locked>>86%54,810 psi88%3337 fps98.5%
Winchester StaBALL HD<<locked>>98%52,605 psi84%3442 fps100%
Winchester Supreme 780<<locked>>94%53,447 psi86%3255 fps96.9%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>84%38,000 psi61%2933 fps95.2%
Accurate 4350<<locked>>80%43,845 psi70%3110 fps98.4%
ADI AR 2208<<locked>>80%50,952 psi82%3209 fps99.7%
ADI AR 2209<<locked>>88%46,992 psi75%3189 fps95.1%
Alliant Power Pro Varmint<<locked>>88%47,398 psi76%3189 fps95.2%
Alliant Power Pro Varmint<<locked>>88%47,398 psi76%3189 fps95.2%
Alliant Reloder- TS 15.5<<locked>>80%52,228 psi84%3241 fps100%
Alliant Reloder-1645.9 gr80%41,336 psi66%3104 fps98.2%
Alliant Reloder-17<<locked>>80%47,384 psi76%3245 fps99.9%
Alliant Reloder-19<<locked>>88%46,920 psi75%3179 fps95.2%
Alliant Reloder-22<<locked>>92%48,370 psi78%3245 fps95.8%
Alliant Reloder-23<<locked>>80%31,531 psi51%2838 fps96.4%
Alliant Reloder-25<<locked>>90%37,898 psi61%3025 fps95.9%
Alliant Reloder-2651.9 gr82%36,695 psi59%3035 fps96.2%
Bofors RP15<<locked>>94%47,456 psi76%3222 fps95.3%
Bofors RP5<<locked>>92%48,370 psi78%3245 fps95.8%
Bofors RP7<<locked>>80%46,427 psi74%3110 fps96.1%
Hodgdon H414<<locked>>80%44,831 psi72%3140 fps96.3%
Hodgdon H4350<<locked>>80%47,282 psi76%3159 fps95.5%
Hodgdon Hybrid 100V<<locked>>80%39,218 psi63%2986 fps98.8%
Hodgdon Retumbo<<locked>>96%44,672 psi72%3241 fps95.1%
Hodgdon Superformance<<locked>>80%44,164 psi71%3146 fps95.8%
Hodgdon TrailBoss<<locked>>80%27,731 psi44%1978 fps100%
IMR 4350<<locked>>82%44,512 psi71%3077 fps95.6%
IMR 4451 Enduron<<locked>>80%47,340 psi76%3133 fps96.8%
IMR 4831<<locked>>80%41,626 psi67%3045 fps98%
IMR 7828 SSC<<locked>>96%52,997 psi85%3340 fps95.4%
Lovex S065<<locked>>80%45,658 psi73%3091 fps97.8%
Lovex S070<<locked>>80%43,961 psi70%3068 fps96.2%
Lovex S071<<locked>>90%39,291 psi63%2966 fps95.7%
Norma 204<<locked>>84%47,732 psi77%3179 fps95.1%
Norma MRP<<locked>>86%41,539 psi67%3123 fps95.1%
Norma URP<<locked>>80%42,641 psi68%3091 fps98.1%
Ramshot Hunter<<locked>>80%41,423 psi66%3064 fps96.2%
Ramshot Magnum<<locked>>94%45,049 psi72%3143 fps95.7%
ReloadSwiss RS 14<<locked>>80%28,297 psi45%2024 fps100%
ReloadSwiss RS 60<<locked>>80%50,067 psi80%3304 fps100%
ReloadSwiss RS 62<<locked>>80%43,468 psi70%3117 fps98.1%
ReloadSwiss RS 70<<locked>>80%41,611 psi67%3117 fps97.5%
ReloadSwiss RS 76<<locked>>94%42,163 psi68%3159 fps95.5%
Rottweil R 903<<locked>>80%50,531 psi81%3205 fps100%
Rottweil R 904<<locked>>90%51,590 psi83%3222 fps95.1%
Rottweil R 905<<locked>>88%46,311 psi74%3166 fps95.1%
Rottweil R 907<<locked>>80%46,427 psi74%3110 fps96.1%
Shooters World Long Rifle<<locked>>80%45,658 psi73%3091 fps97.8%
Shooters World SW4350<<locked>>80%43,961 psi70%3068 fps96.2%
SNPE Vectan SP 11<<locked>>80%51,140 psi82%3248 fps99.9%
SNPE Vectan Tubal 5000<<locked>>80%50,198 psi80%3087 fps100%
SNPE Vectan Tubal 7000<<locked>>80%44,701 psi72%3022 fps96.4%
SNPE Vectan Tubal 8000<<locked>>88%45,905 psi74%3159 fps95%
Somchem S355<<locked>>80%50,314 psi81%3199 fps100%
Somchem S365<<locked>>80%39,349 psi63%3045 fps99.7%
Somchem S385<<locked>>86%44,425 psi71%3087 fps95.5%
Vihtavuori N150<<locked>>80%48,095 psi77%3114 fps100%
Vihtavuori N160<<locked>>80%43,990 psi71%3084 fps98.4%
Vihtavuori N165<<locked>>92%46,717 psi75%3120 fps95.9%
Vihtavuori N550<<locked>>80%43,627 psi70%3084 fps98.1%
Vihtavuori N555<<locked>>80%35,288 psi57%2930 fps96.6%
Winchester 6.5 StaBALL<<locked>>80%43,149 psi69%3041 fps99.7%
Winchester 760<<locked>>80%45,063 psi72%3143 fps96.3%
Winchester StaBALL HD48.6 gr80%28,384 psi46%2805 fps95.4%
Winchester Supreme 780<<locked>>90%46,630 psi75%3127 fps95.1%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 62 powders for 6 x 62 Freres loaded with the .243 | 77gr | IBEX TRD. Winchester StaBALL HD delivers the highest muzzle velocity at 3,442 fps; across all powders the maximum-charge window runs from 2,198 fps to 3,442 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 62 of the 62 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 77.0 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. Alliant Reloder-26, Winchester StaBALL HD, Alliant Reloder-16 rank at the top here: for 6 x 62 Freres with the .243 | 77gr | IBEX TRD 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.

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