Load data for 6.5 x 63 R Messner Mag. + .264 | 122gr | Lehigh Defense Controlled Chaos

6.5 x 63 R Messner Mag. cartridge drawing
Lehigh Defense logo

Load Specifications

Bullet Manufacturer:Lehigh Defense
Bullet Weight:122 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Case Length (l3):2.48"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:83.5 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:25.6"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:8.0

Load data in caliber 6.5 x 63 R Messner Mag. with .264 | 122gr | Lehigh Defense Controlled Chaos bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Winchester StaBALL HD and ReloadSwiss RS 76.

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%54,172 psi85%3077 fps100%
Accurate 4350<<locked>>84%55,274 psi87%3114 fps100%
Accurate MAGPRO<<locked>>94%57,493 psi90%3245 fps97.9%
ADI AR 2209<<locked>>90%56,057 psi88%3173 fps99.6%
ADI AR 2213<<locked>>94%57,682 psi90%3241 fps99.2%
ADI AR 2217ᴾ<<locked>>100%51,880 psi81%3130 fps98.7%
ADI AR 2225ᴾ<<locked>>100%46,644 psi73%3091 fps99.8%
Alliant Reloder-16<<locked>>86%56,101 psi88%3169 fps100%
Alliant Reloder-17<<locked>>82%57,319 psi90%3186 fps100%
Alliant Reloder-19<<locked>>90%55,477 psi87%3159 fps99.5%
Alliant Reloder-22<<locked>>92%54,070 psi85%3173 fps99.5%
Alliant Reloder-23<<locked>>94%55,448 psi87%3146 fps100%
Alliant Reloder-25<<locked>>98%54,853 psi86%3209 fps100%
Alliant Reloder-26<<locked>>90%55,912 psi88%3238 fps100%
Baschieri & Pellagri 109<<locked>>94%55,651 psi87%3133 fps96.5%
Bofors RP15<<locked>>96%56,956 psi89%3219 fps99.7%
Bofors RP30ᴾ<<locked>>100%54,766 psi86%3212 fps99.2%
Bofors RP5<<locked>>92%54,070 psi85%3173 fps99.5%
Bofors RP7<<locked>>84%57,188 psi90%3114 fps99.9%
Hodgdon H1000ᴾ<<locked>>100%53,345 psi84%3159 fps99.3%
Hodgdon H4350<<locked>>84%54,288 psi85%3100 fps99.5%
Hodgdon H4831<<locked>>96%56,840 psi89%3163 fps98.6%
Hodgdon H4831 SC<<locked>>92%56,304 psi88%3156 fps98.5%
Hodgdon Hybrid 100V<<locked>>88%56,521 psi89%3091 fps100%
Hodgdon Retumbo<<locked>>98%53,896 psi84%3287 fps100%
Hodgdon Superformance<<locked>>84%57,522 psi90%3209 fps100%
Hodgdon TrailBossᴾ<<locked>>100%37,246 psi58%1991 fps100%
IMR 4166 Enduron<<locked>>82%56,594 psi89%3081 fps100%
IMR 4350<<locked>>86%55,317 psi87%3094 fps99.8%
IMR 4451 Enduron<<locked>>82%55,013 psi86%3077 fps99.9%
IMR 4831<<locked>>90%56,927 psi89%3123 fps100%
IMR 4955 Enduron<<locked>>90%54,723 psi86%3094 fps98.4%
IMR 7828 SSC<<locked>>92%55,912 psi88%3222 fps99%
IMR 8133 Enduronᴾ<<locked>>100%42,090 psi66%2986 fps96.6%
Lovex S065<<locked>>84%55,825 psi87%3077 fps100%
Lovex S070<<locked>>86%57,580 psi90%3130 fps100%
Lovex S071<<locked>>98%55,492 psi87%3097 fps100%
Norma 204<<locked>>86%56,463 psi88%3156 fps99.5%
Norma 217ᴾ<<locked>>100%42,221 psi66%3012 fps98.7%
Norma MRP<<locked>>90%54,085 psi85%3199 fps99.9%
Norma URP<<locked>>86%57,159 psi90%3146 fps100%
Ramshot Grand<<locked>>90%55,738 psi87%3225 fps99.3%
Ramshot Hunter<<locked>>86%56,086 psi88%3156 fps100%
Ramshot Magnum<<locked>>94%57,058 psi89%3199 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%37,971 psi60%2034 fps100%
ReloadSwiss RS 62<<locked>>84%55,376 psi87%3136 fps100%
ReloadSwiss RS 70<<locked>>86%57,740 psi90%3228 fps100%
ReloadSwiss RS 76<<locked>>98%54,737 psi86%3281 fps100%
ReloadSwiss RS 80ᴾ<<locked>>100%53,867 psi84%3232 fps98.1%
Rottweil R 904<<locked>>90%57,188 psi90%3140 fps99.1%
Rottweil R 905<<locked>>90%55,259 psi87%3150 fps99.6%
Rottweil R 907<<locked>>84%57,188 psi90%3114 fps99.9%
Shooters World Long Rifle<<locked>>84%55,825 psi87%3077 fps100%
Shooters World SW4350<<locked>>86%57,580 psi90%3130 fps100%
SNPE Vectan Tubal 7000<<locked>>84%54,998 psi86%3028 fps99.9%
SNPE Vectan Tubal 8000<<locked>>90%54,839 psi86%3146 fps99.5%
Somchem S361<<locked>>88%54,955 psi86%3068 fps98.3%
Somchem S365<<locked>>86%54,143 psi85%3094 fps100%
Somchem S385<<locked>>90%55,579 psi87%3117 fps99.9%
Unknown powder<<locked>>84%57,377 psi90%3153 fps100%
Vihtavuori N150<<locked>>82%55,956 psi88%3018 fps100%
Vihtavuori N160<<locked>>84%55,347 psi87%3084 fps100%
Vihtavuori N165<<locked>>94%55,274 psi87%3100 fps99.7%
Vihtavuori N550<<locked>>84%54,418 psi85%3087 fps100%
Vihtavuori N555<<locked>>92%57,682 psi90%3173 fps100%
Vihtavuori N560<<locked>>92%57,595 psi90%3258 fps98.9%
Vihtavuori N565<<locked>>98%57,566 psi90%3232 fps99.1%
Vihtavuori N568ᴾ<<locked>>100%54,679 psi86%3232 fps97.8%
Winchester 6.5 StaBALL<<locked>>84%54,752 psi86%3035 fps100%
Winchester StaBALL HD<<locked>>94%53,461 psi84%3228 fps100%
Winchester Supreme 780<<locked>>90%56,971 psi89%3136 fps99.6%

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%36,071 psi57%2723 fps97.9%
Accurate 4350<<locked>>80%48,124 psi75%2992 fps100%
Accurate MAGPRO<<locked>>88%46,543 psi73%3041 fps95.4%
ADI AR 2209<<locked>>80%40,030 psi63%2858 fps96.6%
ADI AR 2213<<locked>>84%40,959 psi64%2910 fps95.5%
ADI AR 2217<<locked>>92%39,566 psi62%2867 fps95.4%
ADI AR 2225<<locked>>88%31,372 psi49%2697 fps95.1%
Alliant Reloder-16<<locked>>80%46,093 psi72%3002 fps100%
Alliant Reloder-17<<locked>>80%53,330 psi84%3123 fps100%
Alliant Reloder-19<<locked>>80%40,074 psi63%2851 fps96.7%
Alliant Reloder-22<<locked>>80%35,940 psi56%2789 fps95.3%
Alliant Reloder-23<<locked>>80%34,650 psi54%2749 fps99.8%
Alliant Reloder-25<<locked>>80%30,095 psi47%2651 fps96.5%
Alliant Reloder-26<<locked>>80%38,319 psi60%2904 fps99.5%
Baschieri & Pellagri 109<<locked>>92%52,199 psi82%3071 fps95.7%
Bofors RP15<<locked>>82%35,868 psi56%2782 fps95.1%
Bofors RP30<<locked>>90%38,696 psi61%2884 fps95.5%
Bofors RP5<<locked>>80%35,940 psi56%2789 fps95.3%
Bofors RP7<<locked>>80%50,459 psi79%2995 fps99.4%
Hodgdon H1000<<locked>>90%38,130 psi60%2835 fps95.5%
Hodgdon H4350<<locked>>80%47,863 psi75%2982 fps98.7%
Hodgdon H4831<<locked>>88%43,801 psi69%2917 fps95.8%
Hodgdon H4831 SC<<locked>>84%42,960 psi67%2897 fps95.5%
Hodgdon Hybrid 100V<<locked>>80%43,410 psi68%2871 fps100%
Hodgdon Retumbo60 gr86%35,882 psi56%2871 fps96%
Hodgdon Superformance<<locked>>80%49,516 psi78%3071 fps99.5%
Hodgdon TrailBoss<<locked>>80%27,862 psi44%1781 fps100%
IMR 4166 Enduron<<locked>>80%53,301 psi84%3028 fps99.9%
IMR 4350<<locked>>80%45,803 psi72%2923 fps98.9%
IMR 4451 Enduron<<locked>>80%51,634 psi81%3018 fps99.7%
IMR 4831<<locked>>80%41,611 psi65%2851 fps99.9%
IMR 4955 Enduron<<locked>>82%42,482 psi67%2854 fps95.6%
IMR 7828 SSC<<locked>>82%39,218 psi61%2877 fps95%
IMR 8133 Enduron<<locked>>98%39,262 psi62%2920 fps95.6%
Lovex S065<<locked>>80%49,356 psi77%2966 fps99.9%
Lovex S070<<locked>>80%47,688 psi75%2956 fps99.5%
Lovex S071<<locked>>80%31,096 psi49%2589 fps96.2%
Norma 204<<locked>>80%45,992 psi72%2963 fps98%
Norma 217<<locked>>92%32,242 psi51%2753 fps95%
Norma MRP<<locked>>80%37,710 psi59%2864 fps97.4%
Norma URP<<locked>>80%47,050 psi74%2979 fps100%
Ramshot Grand<<locked>>80%38,029 psi60%2861 fps95%
Ramshot Hunter<<locked>>80%45,890 psi72%2972 fps99.6%
Ramshot Magnum<<locked>>80%33,315 psi52%2713 fps95.2%
ReloadSwiss RS 14<<locked>>80%28,587 psi45%1824 fps100%
ReloadSwiss RS 62<<locked>>80%48,240 psi76%3015 fps100%
ReloadSwiss RS 70<<locked>>80%46,282 psi73%3031 fps100%
ReloadSwiss RS 7662.7 gr84%32,721 psi51%2772 fps95.7%
ReloadSwiss RS 80<<locked>>94%42,540 psi67%3002 fps95.2%
Rottweil R 904<<locked>>80%41,307 psi65%2835 fps95.8%
Rottweil R 905<<locked>>80%39,479 psi62%2838 fps96.6%
Rottweil R 907<<locked>>80%50,459 psi79%2995 fps99.4%
Shooters World Long Rifle<<locked>>80%49,356 psi77%2966 fps99.9%
Shooters World SW4350<<locked>>80%47,688 psi75%2956 fps99.5%
SNPE Vectan Tubal 7000<<locked>>80%48,225 psi76%2910 fps99.5%
SNPE Vectan Tubal 8000<<locked>>80%39,175 psi61%2835 fps96.5%
Somchem S361<<locked>>80%42,076 psi66%2822 fps95.3%
Somchem S365<<locked>>80%44,193 psi69%2930 fps100%
Somchem S385<<locked>>80%40,001 psi63%2818 fps97.6%
Unknown powder<<locked>>80%50,270 psi79%3035 fps100%
Vihtavuori N150<<locked>>80%52,373 psi82%2963 fps100%
Vihtavuori N160<<locked>>80%48,486 psi76%2969 fps100%
Vihtavuori N165<<locked>>80%34,708 psi54%2680 fps95.5%
Vihtavuori N550<<locked>>80%47,819 psi75%2972 fps100%
Vihtavuori N555<<locked>>80%38,798 psi61%2831 fps99.8%
Vihtavuori N560<<locked>>84%43,526 psi68%2986 fps95.9%
Vihtavuori N565<<locked>>88%40,944 psi64%2907 fps95.4%
Vihtavuori N568<<locked>>96%47,340 psi74%3094 fps96%
Winchester 6.5 StaBALL<<locked>>80%47,630 psi75%2923 fps100%
Winchester StaBALL HD57.3 gr80%30,864 psi48%2776 fps100%
Winchester Supreme 780<<locked>>80%39,871 psi62%2815 fps96.6%

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 6.5 x 63 R Messner Mag. loaded with the .264 | 122gr | Lehigh Defense Controlled Chaos. Hodgdon Retumbo delivers the highest muzzle velocity at 3,287 fps; across all powders the maximum-charge window runs from 1,991 fps to 3,287 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 (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 122.0 gr projectile in 0.264" calls for a 1:8.0 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, Winchester StaBALL HD, ReloadSwiss RS 76 rank at the top here: for 6.5 x 63 R Messner Mag. with the .264 | 122gr | Lehigh Defense Controlled Chaos 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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