Load data for 6 x 62 Freres + .243 | 88gr | Berger Varmint

6 x 62 Freres cartridge drawing
Berger logo

Load Specifications

Bullet Manufacturer:Berger
Bullet Weight:88 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 | 88gr | Berger Varmint bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Norma MRP and Vihtavuori N560.

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>>94%54,027 psi87%3120 fps99.7%
Accurate 4350<<locked>>86%54,853 psi88%3169 fps100%
Accurate High Country<<locked>>92%55,521 psi89%3268 fps97.6%
ADI AR 2208<<locked>>82%55,796 psi89%3140 fps100%
ADI AR 2209<<locked>>92%55,970 psi90%3219 fps98.5%
ADI AR 2213<<locked>>94%53,925 psi86%3212 fps97.1%
ADI AR 2217ᴾ<<locked>>100%48,414 psi78%3087 fps96.1%
ADI AR 2225ᴾ<<locked>>100%43,308 psi69%3035 fps97.9%
Alliant Reloder-16<<locked>>88%55,854 psi90%3232 fps100%
Alliant Reloder-17<<locked>>82%52,997 psi85%3186 fps100%
Alliant Reloder-19<<locked>>92%55,550 psi89%3202 fps98.5%
Alliant Reloder-22<<locked>>94%53,867 psi86%3209 fps98.3%
Alliant Reloder-23<<locked>>96%54,824 psi88%3192 fps100%
Alliant Reloder-25ᴾ<<locked>>100%54,389 psi87%3245 fps100%
Alliant Reloder-26<<locked>>92%55,593 psi89%3278 fps100%
Bofors RP15<<locked>>96%52,794 psi85%3186 fps98%
Bofors RP30ᴾ<<locked>>100%50,401 psi81%3159 fps97%
Bofors RP5<<locked>>94%53,867 psi86%3209 fps98.3%
Bofors RP7<<locked>>84%53,795 psi86%3110 fps98.8%
Hodgdon H1000ᴾ<<locked>>100%53,432 psi86%3189 fps98%
Hodgdon H414<<locked>>84%52,895 psi85%3156 fps99.1%
Hodgdon H4350<<locked>>84%55,695 psi89%3179 fps98.6%
Hodgdon H4831<<locked>>92%53,650 psi86%3143 fps96.4%
Hodgdon H4831 SC<<locked>>92%52,721 psi85%3127 fps96.1%
Hodgdon Hybrid 100V<<locked>>90%56,231 psi90%3153 fps100%
Hodgdon Retumboᴾ<<locked>>100%53,447 psi86%3307 fps99.1%
Hodgdon Superformance<<locked>>84%53,650 psi86%3192 fps99.1%
Hodgdon TrailBossᴾ<<locked>>100%36,840 psi59%2080 fps100%
IMR 4350<<locked>>88%55,405 psi89%3146 fps99.1%
IMR 4451 Enduron<<locked>>84%55,158 psi88%3136 fps99.3%
IMR 4831<<locked>>88%55,477 psi89%3163 fps100%
IMR 4955 Enduron<<locked>>92%54,911 psi88%3136 fps96.8%
IMR 7828 SSC<<locked>>96%55,376 psi89%3248 fps97.5%
Lovex S065<<locked>>86%55,898 psi90%3140 fps99.9%
Lovex S070<<locked>>86%54,201 psi87%3130 fps99.3%
Lovex S071ᴾ<<locked>>100%55,027 psi88%3136 fps99.8%
Norma 204<<locked>>86%52,881 psi85%3140 fps97.8%
Norma MRP<<locked>>92%53,751 psi86%3232 fps99.2%
Norma URP<<locked>>86%53,490 psi86%3153 fps100%
Ramshot Grand<<locked>>96%56,072 psi90%3268 fps98%
Ramshot Hunter<<locked>>88%56,043 psi90%3205 fps99.8%
Ramshot Magnum<<locked>>98%54,926 psi88%3199 fps99.1%
ReloadSwiss RS 14ᴾ<<locked>>100%37,637 psi60%2126 fps100%
ReloadSwiss RS 60<<locked>>82%56,391 psi90%3235 fps100%
ReloadSwiss RS 62<<locked>>86%55,216 psi89%3189 fps100%
ReloadSwiss RS 70<<locked>>86%53,548 psi86%3215 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%54,679 psi88%3304 fps99.8%
Rottweil R 903<<locked>>82%54,911 psi88%3123 fps100%
Rottweil R 904<<locked>>90%53,417 psi86%3120 fps97%
Rottweil R 905<<locked>>92%55,013 psi88%3192 fps98.5%
Rottweil R 907<<locked>>84%53,795 psi86%3110 fps98.8%
Shooters World Long Rifle<<locked>>86%55,898 psi90%3140 fps99.9%
Shooters World SW4350<<locked>>86%54,201 psi87%3130 fps99.3%
SNPE Vectan Tubal 5000<<locked>>82%54,868 psi88%3002 fps100%
SNPE Vectan Tubal 7000<<locked>>86%55,201 psi89%3084 fps99.4%
SNPE Vectan Tubal 8000<<locked>>92%54,563 psi87%3186 fps98.4%
Somchem S355<<locked>>82%54,708 psi88%3120 fps100%
Somchem S361<<locked>>90%55,463 psi89%3110 fps96.8%
Somchem S365<<locked>>88%53,635 psi86%3156 fps100%
Somchem S385<<locked>>92%55,637 psi89%3163 fps99.1%
Vihtavuori N150<<locked>>84%56,043 psi90%3091 fps100%
Vihtavuori N160<<locked>>86%55,129 psi88%3143 fps100%
Vihtavuori N165<<locked>>96%55,361 psi89%3140 fps98.9%
Vihtavuori N550<<locked>>86%54,418 psi87%3143 fps100%
Vihtavuori N555<<locked>>92%53,403 psi86%3166 fps100%
Vihtavuori N560<<locked>>92%53,621 psi86%3219 fps96.6%
Vihtavuori N565<<locked>>98%53,432 psi86%3189 fps96.9%
Winchester 6.5 StaBALL<<locked>>86%54,984 psi88%3097 fps100%
Winchester 760<<locked>>84%53,214 psi85%3159 fps99.1%
Winchester StaBALL HD<<locked>>96%52,359 psi84%3261 fps100%
Winchester Supreme 780<<locked>>94%55,854 psi90%3159 fps98.5%

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>>82%35,636 psi57%2749 fps95.8%
Accurate 4350<<locked>>80%44,628 psi72%2986 fps99.4%
Accurate High Country<<locked>>88%48,022 psi77%3130 fps95.8%
ADI AR 2208<<locked>>80%52,533 psi84%3087 fps100%
ADI AR 2209<<locked>>84%42,670 psi68%2959 fps95.3%
ADI AR 2213<<locked>>90%46,905 psi75%3071 fps95.2%
ADI AR 2217<<locked>>98%45,136 psi72%3018 fps95%
ADI AR 2225<<locked>>96%37,840 psi61%2897 fps95.7%
Alliant Reloder-16<<locked>>80%42,438 psi68%2989 fps99.4%
Alliant Reloder-17<<locked>>80%49,429 psi79%3127 fps100%
Alliant Reloder-19<<locked>>84%42,467 psi68%2946 fps95.3%
Alliant Reloder-22<<locked>>88%43,801 psi70%3009 fps95.8%
Alliant Reloder-23<<locked>>80%31,662 psi51%2717 fps97.9%
Alliant Reloder-25<<locked>>86%33,997 psi55%2795 fps95.8%
Alliant Reloder-26<<locked>>80%34,737 psi56%2848 fps96.9%
Bofors RP15<<locked>>90%43,192 psi69%2995 fps95.5%
Bofors RP30<<locked>>96%43,918 psi70%3031 fps95.1%
Bofors RP5<<locked>>88%43,801 psi70%3009 fps95.8%
Bofors RP7<<locked>>80%47,398 psi76%2992 fps97.7%
Hodgdon H1000<<locked>>94%43,221 psi69%2979 fps95%
Hodgdon H414<<locked>>80%46,209 psi74%3028 fps97.9%
Hodgdon H4350<<locked>>80%48,834 psi78%3054 fps97.4%
Hodgdon H4831<<locked>>90%50,067 psi80%3077 fps95.4%
Hodgdon H4831 SC<<locked>>90%49,182 psi79%3064 fps95.2%
Hodgdon Hybrid 100V<<locked>>80%40,074 psi64%2867 fps99.7%
Hodgdon Retumbo<<locked>>92%40,553 psi65%3015 fps95.3%
Hodgdon Superformance<<locked>>80%45,876 psi74%3045 fps97.6%
Hodgdon TrailBoss<<locked>>80%27,543 psi44%1867 fps100%
IMR 4350<<locked>>80%42,830 psi69%2907 fps96.6%
IMR 4451 Enduron<<locked>>80%48,733 psi78%3022 fps98.3%
IMR 4831<<locked>>80%42,511 psi68%2927 fps99.2%
IMR 4955 Enduron<<locked>>88%48,196 psi77%3012 fps95.1%
IMR 7828 SSC<<locked>>92%48,124 psi77%3110 fps95.7%
Lovex S065<<locked>>80%46,195 psi74%2966 fps98.9%
Lovex S070<<locked>>80%44,730 psi72%2949 fps97.8%
Lovex S071<<locked>>86%34,795 psi56%2730 fps95.4%
Norma 204<<locked>>80%42,815 psi69%2940 fps95.2%
Norma MRP50.8 gr82%37,260 psi60%2887 fps95%
Norma URP<<locked>>80%43,816 psi70%2972 fps99.2%
Ramshot Grand<<locked>>90%45,092 psi72%3054 fps95.1%
Ramshot Hunter<<locked>>80%42,612 psi68%2953 fps97.8%
Ramshot Magnum<<locked>>90%40,437 psi65%2917 fps95.7%
ReloadSwiss RS 14<<locked>>80%28,094 psi45%1909 fps100%
ReloadSwiss RS 60<<locked>>80%52,460 psi84%3179 fps100%
ReloadSwiss RS 62<<locked>>80%44,440 psi71%2995 fps99.2%
ReloadSwiss RS 70<<locked>>80%42,931 psi69%3012 fps98.9%
ReloadSwiss RS 76<<locked>>90%37,608 psi60%2920 fps95.4%
Rottweil R 903<<locked>>80%51,619 psi83%3071 fps100%
Rottweil R 904<<locked>>86%46,963 psi75%2999 fps95.4%
Rottweil R 905<<locked>>84%41,916 psi67%2936 fps95.3%
Rottweil R 907<<locked>>80%47,398 psi76%2992 fps97.7%
Shooters World Long Rifle<<locked>>80%46,195 psi74%2966 fps98.9%
Shooters World SW4350<<locked>>80%44,730 psi72%2949 fps97.8%
SNPE Vectan Tubal 5000<<locked>>80%51,590 psi83%2953 fps100%
SNPE Vectan Tubal 7000<<locked>>80%45,455 psi73%2910 fps97.8%
SNPE Vectan Tubal 8000<<locked>>84%41,553 psi67%2930 fps95.1%
Somchem S355<<locked>>80%51,198 psi82%3064 fps100%
Somchem S361<<locked>>86%48,457 psi78%2986 fps95%
Somchem S365<<locked>>80%40,567 psi65%2923 fps100%
Somchem S385<<locked>>82%39,740 psi64%2854 fps95.5%
Vihtavuori N150<<locked>>80%49,298 psi79%2986 fps100%
Vihtavuori N160<<locked>>80%45,208 psi72%2969 fps99.4%
Vihtavuori N165<<locked>>88%42,076 psi67%2890 fps95.9%
Vihtavuori N550<<locked>>80%44,628 psi72%2966 fps99.2%
Vihtavuori N555<<locked>>80%35,505 psi57%2802 fps97.9%
Vihtavuori N56055.7 gr90%49,748 psi80%3146 fps95.6%
Vihtavuori N565<<locked>>94%46,543 psi75%3054 fps95%
Winchester 6.5 StaBALL<<locked>>80%44,512 psi71%2923 fps100%
Winchester 760<<locked>>80%46,499 psi75%3035 fps98%
Winchester StaBALL HD49 gr80%28,224 psi45%2697 fps97.4%
Winchester Supreme 780<<locked>>86%41,916 psi67%2894 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 71 powders for 6 x 62 Freres loaded with the .243 | 88gr | Berger Varmint. Hodgdon Retumbo delivers the highest muzzle velocity at 3,307 fps; across all powders the maximum-charge window runs from 2,080 fps to 3,307 fps. ADI AR 2217 gives the best case fill at 100 %, and 71 of the 71 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 88.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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. Winchester StaBALL HD, Norma MRP, Vihtavuori N560 rank at the top here: for 6 x 62 Freres with the .243 | 88gr | Berger Varmint 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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