Load data for 6.5 x 68 + .264 | 123gr | Warner Tool Co. Flat Line

6.5 x 68 cartridge drawing
Warner Tool Co logo

Load Specifications

Bullet Manufacturer:Warner Tool Co
Bullet Weight:123 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Case Length (l3):2.657"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:86 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:7.5

Load data in caliber 6.5 x 68 with .264 | 123gr | Warner Tool Co. Flat Line bullet and 70 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 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: 25.6"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>92%55,608 psi87%3087 fps100%
Accurate 4350<<locked>>84%56,550 psi89%3120 fps100%
Accurate MAGPRO<<locked>>90%54,288 psi85%3189 fps98.1%
ADI AR 2209<<locked>>90%57,188 psi90%3182 fps99.7%
ADI AR 2213<<locked>>92%55,259 psi87%3192 fps99%
ADI AR 2217ᴾ<<locked>>100%53,447 psi84%3150 fps99.1%
ADI AR 2225ᴾ<<locked>>100%47,848 psi75%3107 fps99.9%
Alliant Reloder-16<<locked>>86%57,406 psi90%3179 fps100%
Alliant Reloder-19<<locked>>90%56,855 psi89%3173 fps99.7%
Alliant Reloder-22<<locked>>92%55,477 psi87%3186 fps99.7%
Alliant Reloder-23<<locked>>94%56,985 psi89%3153 fps100%
Alliant Reloder-25<<locked>>98%56,434 psi88%3219 fps100%
Alliant Reloder-26<<locked>>90%57,566 psi90%3248 fps100%
Baschieri & Pellagri 109<<locked>>94%56,652 psi89%3146 fps97%
Bofors RP15<<locked>>94%54,679 psi86%3173 fps99.6%
Bofors RP30ᴾ<<locked>>100%56,246 psi88%3225 fps99.5%
Bofors RP5<<locked>>92%55,477 psi87%3186 fps99.7%
Bofors RP7<<locked>>82%54,679 psi86%3061 fps99.8%
Hodgdon H1000<<locked>>98%54,955 psi86%3179 fps99.6%
Hodgdon H414<<locked>>82%54,360 psi85%3117 fps100%
Hodgdon H4350<<locked>>82%56,681 psi89%3130 fps99.8%
Hodgdon H4831<<locked>>90%54,984 psi86%3123 fps98.5%
Hodgdon H4831 SC<<locked>>92%57,638 psi90%3166 fps98.8%
Hodgdon Hybrid 100V<<locked>>88%57,740 psi90%3094 fps100%
Hodgdon Retumbo<<locked>>98%55,419 psi87%3301 fps100%
Hodgdon Superformance<<locked>>82%54,679 psi86%3153 fps99.9%
Hodgdon TrailBossᴾ<<locked>>100%37,347 psi59%1988 fps100%
IMR 4350<<locked>>86%56,637 psi89%3107 fps99.9%
IMR 4451 Enduron<<locked>>82%56,072 psi88%3087 fps100%
IMR 4831<<locked>>86%56,811 psi89%3110 fps100%
IMR 4955 Enduron<<locked>>90%55,695 psi87%3100 fps98.7%
IMR 7828 SSC<<locked>>94%57,116 psi90%3232 fps99.3%
IMR 8133 Enduronᴾ<<locked>>100%43,352 psi68%3002 fps97.1%
Lovex S065<<locked>>84%56,884 psi89%3084 fps100%
Lovex S070<<locked>>84%55,085 psi86%3077 fps100%
Lovex S071<<locked>>98%56,956 psi89%3107 fps100%
Norma 204<<locked>>84%53,940 psi85%3104 fps99.4%
Norma 217ᴾ<<locked>>100%43,555 psi68%3028 fps99.1%
Norma MRP<<locked>>90%55,303 psi87%3202 fps100%
Norma URP<<locked>>84%54,694 psi86%3100 fps100%
Ramshot Grand<<locked>>92%53,882 psi84%3186 fps99.2%
Ramshot Hunter<<locked>>86%57,508 psi90%3166 fps100%
Ramshot Magnum<<locked>>96%56,492 psi89%3179 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%38,101 psi60%2034 fps100%
ReloadSwiss RS 62<<locked>>84%56,579 psi89%3143 fps100%
ReloadSwiss RS 70<<locked>>84%54,882 psi86%3169 fps100%
ReloadSwiss RS 76<<locked>>98%56,202 psi88%3294 fps100%
ReloadSwiss RS 80ᴾ<<locked>>100%55,666 psi87%3251 fps98.6%
Rottweil R 904<<locked>>88%54,621 psi86%3091 fps98.9%
Rottweil R 905<<locked>>90%56,420 psi88%3159 fps99.7%
Rottweil R 907<<locked>>82%54,679 psi86%3061 fps99.8%
Shooters World Long Rifle<<locked>>84%56,884 psi89%3084 fps100%
Shooters World SW4350<<locked>>84%55,085 psi86%3077 fps100%
SNPE Vectan Tubal 7000<<locked>>84%56,014 psi88%3035 fps100%
SNPE Vectan Tubal 8000<<locked>>90%55,985 psi88%3156 fps99.7%
Somchem S361<<locked>>88%56,130 psi88%3081 fps98.6%
Somchem S365<<locked>>86%55,709 psi87%3104 fps100%
Somchem S385<<locked>>90%56,985 psi89%3130 fps100%
Vihtavuori N150<<locked>>82%56,811 psi89%3018 fps100%
Vihtavuori N160<<locked>>84%56,521 psi89%3094 fps100%
Vihtavuori N165<<locked>>94%56,594 psi89%3107 fps99.9%
Vihtavuori N550<<locked>>84%55,782 psi87%3097 fps100%
Vihtavuori N555<<locked>>90%55,492 psi87%3130 fps100%
Vihtavuori N560<<locked>>90%55,013 psi86%3199 fps98.7%
Vihtavuori N565<<locked>>96%55,259 psi87%3182 fps98.9%
Vihtavuori N568ᴾ<<locked>>100%56,159 psi88%3248 fps98.2%
Winchester 6.5 StaBALL<<locked>>84%56,072 psi88%3041 fps100%
Winchester 760<<locked>>82%54,360 psi85%3117 fps100%
Winchester StaBALL HD<<locked>>94%55,666 psi87%3245 fps100%
Winchester Supreme 780<<locked>>92%56,971 psi89%3127 fps99.7%

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

Start Load - Barrel Length: 25.6"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>80%37,057 psi58%2736 fps98.4%
Accurate 4350<<locked>>80%49,356 psi77%3005 fps100%
Accurate MAGPRO<<locked>>84%43,830 psi69%2979 fps95.5%
ADI AR 2209<<locked>>80%41,017 psi64%2871 fps97.1%
ADI AR 2213<<locked>>82%39,189 psi61%2858 fps95.1%
ADI AR 2217<<locked>>90%37,985 psi60%2822 fps95%
ADI AR 2225<<locked>>88%32,126 psi50%2713 fps95.8%
Alliant Reloder-16<<locked>>80%47,079 psi74%3005 fps100%
Alliant Reloder-19<<locked>>80%41,060 psi64%2864 fps97.1%
Alliant Reloder-22<<locked>>80%36,912 psi58%2802 fps95.9%
Alliant Reloder-23<<locked>>80%35,679 psi56%2762 fps100%
Alliant Reloder-25<<locked>>80%30,908 psi48%2667 fps97.1%
Alliant Reloder-26<<locked>>80%39,465 psi62%2917 fps99.7%
Baschieri & Pellagri 109<<locked>>90%49,908 psi78%3018 fps95.3%
Bofors RP15<<locked>>82%36,651 psi57%2792 fps95.6%
Bofors RP30<<locked>>88%37,289 psi58%2838 fps95.2%
Bofors RP5<<locked>>80%36,912 psi58%2802 fps95.9%
Bofors RP7<<locked>>80%51,285 psi80%3002 fps99.6%
Hodgdon H1000<<locked>>86%36,289 psi57%2782 fps95%
Hodgdon H414<<locked>>80%50,691 psi79%3054 fps99.8%
Hodgdon H4350<<locked>>80%53,185 psi83%3071 fps99.5%
Hodgdon H4831<<locked>>82%41,872 psi66%2867 fps95.4%
Hodgdon H4831 SC<<locked>>82%41,060 psi64%2848 fps95.1%
Hodgdon Hybrid 100V<<locked>>80%44,324 psi69%2877 fps100%
Hodgdon Retumbo59.3 gr84%34,432 psi54%2818 fps95.5%
Hodgdon Superformance<<locked>>80%50,937 psi80%3087 fps99.7%
Hodgdon TrailBoss<<locked>>80%27,876 psi44%1778 fps100%
IMR 4350<<locked>>80%46,789 psi73%2933 fps99.1%
IMR 4451 Enduron<<locked>>80%52,678 psi83%3028 fps99.9%
IMR 4831<<locked>>80%46,673 psi73%2940 fps100%
IMR 4955 Enduron<<locked>>80%40,698 psi64%2805 fps95.2%
IMR 7828 SSC<<locked>>84%40,408 psi63%2900 fps95.7%
IMR 8133 Enduron<<locked>>96%37,768 psi59%2871 fps95.2%
Lovex S065<<locked>>80%50,386 psi79%2976 fps100%
Lovex S070<<locked>>80%48,733 psi76%2966 fps99.7%
Lovex S071<<locked>>80%31,836 psi50%2602 fps96.7%
Norma 204<<locked>>80%47,050 psi74%2976 fps98.4%
Norma 217<<locked>>92%33,141 psi52%2769 fps95.7%
Norma MRP<<locked>>80%38,740 psi61%2874 fps97.9%
Norma URP<<locked>>80%48,167 psi75%2989 fps100%
Ramshot Grand<<locked>>82%37,478 psi59%2838 fps95%
Ramshot Hunter<<locked>>80%46,978 psi74%2986 fps99.8%
Ramshot Magnum<<locked>>82%33,547 psi53%2710 fps95.5%
ReloadSwiss RS 14<<locked>>80%28,601 psi45%1821 fps100%
ReloadSwiss RS 62<<locked>>80%49,385 psi77%3025 fps100%
ReloadSwiss RS 70<<locked>>80%47,427 psi74%3041 fps100%
ReloadSwiss RS 7662 gr82%31,386 psi49%2720 fps95.2%
ReloadSwiss RS 80<<locked>>94%44,048 psi69%3028 fps95.9%
Rottweil R 904<<locked>>80%42,235 psi66%2848 fps96.3%
Rottweil R 905<<locked>>80%40,321 psi63%2848 fps97.1%
Rottweil R 907<<locked>>80%51,285 psi80%3002 fps99.6%
Shooters World Long Rifle<<locked>>80%50,386 psi79%2976 fps100%
Shooters World SW4350<<locked>>80%48,733 psi76%2966 fps99.7%
SNPE Vectan Tubal 7000<<locked>>80%49,226 psi77%2920 fps99.7%
SNPE Vectan Tubal 8000<<locked>>80%39,987 psi63%2841 fps97%
Somchem S361<<locked>>80%42,946 psi67%2831 fps95.8%
Somchem S365<<locked>>80%45,397 psi71%2940 fps100%
Somchem S385<<locked>>80%41,002 psi64%2831 fps98%
Vihtavuori N150<<locked>>80%53,505 psi84%2969 fps100%
Vihtavuori N160<<locked>>80%49,588 psi78%2979 fps100%
Vihtavuori N165<<locked>>80%35,607 psi56%2694 fps96.1%
Vihtavuori N550<<locked>>80%48,907 psi77%2982 fps100%
Vihtavuori N555<<locked>>80%39,943 psi63%2848 fps99.9%
Vihtavuori N56060.1 gr82%41,713 psi65%2933 fps95.5%
Vihtavuori N565<<locked>>86%39,262 psi62%2858 fps95%
Vihtavuori N568<<locked>>94%45,237 psi71%3038 fps95.6%
Winchester 6.5 StaBALL<<locked>>80%48,646 psi76%2930 fps100%
Winchester 760<<locked>>80%50,923 psi80%3058 fps99.8%
Winchester StaBALL HD<<locked>>80%32,024 psi50%2792 fps100%
Winchester Supreme 780<<locked>>80%37,579 psi59%2749 fps96.1%

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 70 powders for 6.5 x 68 loaded with the .264 | 123gr | Warner Tool Co. Flat Line. Hodgdon Retumbo delivers the highest muzzle velocity at 3,301 fps; across all powders the maximum-charge window runs from 1,988 fps to 3,301 fps. ADI AR 2217 gives the best case fill at 100 %, and 70 of the 70 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 123.0 gr projectile in 0.264" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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. Hodgdon Retumbo, ReloadSwiss RS 76, Vihtavuori N560 rank at the top here: for 6.5 x 68 with the .264 | 123gr | Warner Tool Co. Flat Line 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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