Load data for 6.5 x 50 R + .264 | 144gr | Sierra MatchKing

6.5 x 50 R cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:144 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Case Length (l3):1.948"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:37.5 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.6"
Max. allowed Pressure:52,939 psi
Recommended Twist Rate:1:9.0

Load data in caliber 6.5 x 50 R with .264 | 144gr | Sierra MatchKing bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 52, Hodgdon CFE223 and Hodgdon LEVERevolution.

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: 23.6"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>90%45,469 psi86%2169 fps100%
Accurate 2200<<locked>>82%46,093 psi87%2218 fps96.5%
Accurate 2230<<locked>>82%46,122 psi87%2228 fps96.9%
Accurate 2460<<locked>>88%46,282 psi87%2215 fps99.8%
Accurate 2495<<locked>>98%46,064 psi87%2241 fps100%
Accurate 2520<<locked>>92%46,572 psi88%2254 fps99.7%
Accurate 4064ᴾ<<locked>>100%45,629 psi86%2264 fps99.9%
Accurate LT-30<<locked>>84%47,253 psi89%2129 fps100%
Accurate LT-32<<locked>>84%47,718 psi90%2142 fps99.7%
ADI AR 2206H<<locked>>94%46,833 psi88%2251 fps97.6%
ADI AR 2207<<locked>>82%47,906 psi90%2152 fps100%
ADI AR 2208ᴾ<<locked>>100%47,674 psi90%2244 fps96.9%
ADI AR 2219<<locked>>84%45,426 psi86%2215 fps100%
ADI Benchmark 8208<<locked>>92%46,833 psi88%2228 fps98.6%
Alliant AR-Comp<<locked>>94%47,456 psi90%2260 fps100%
Alliant Power Pro 1200-R<<locked>>88%47,630 psi90%2306 fps98.4%
Alliant Power Pro 2000-MR<<locked>>96%46,238 psi87%2316 fps96.1%
Alliant Reloder- TS 15.5ᴾ<<locked>>100%45,832 psi87%2264 fps98.3%
Alliant Reloder-10x<<locked>>86%45,934 psi87%2182 fps100%
Alliant Reloder-15<<locked>>98%47,152 psi89%2280 fps97.2%
Alliant Reloder-17ᴾ<<locked>>100%40,959 psi77%2241 fps96.2%
Baschieri & Pellagri 106<<locked>>84%45,701 psi86%2133 fps100%
Baschieri & Pellagri 107<<locked>>94%46,209 psi87%2257 fps96.2%
Bofors RP3ᴾ<<locked>>100%45,310 psi86%2270 fps98.3%
Hodgdon Benchmark<<locked>>90%46,673 psi88%2182 fps99%
Hodgdon BL-C2<<locked>>94%47,659 psi90%2293 fps99.2%
Hodgdon CFE223<<locked>>90%46,064 psi87%2306 fps96.9%
Hodgdon H322<<locked>>88%47,123 psi89%2238 fps100%
Hodgdon H335<<locked>>86%45,150 psi85%2221 fps99.8%
Hodgdon H380ᴾ<<locked>>100%47,863 psi90%2277 fps95.8%
Hodgdon H4895<<locked>>94%47,065 psi89%2264 fps98.2%
Hodgdon LEVERevolution<<locked>>96%45,324 psi86%2280 fps98.2%
Hodgdon TrailBossᴾ<<locked>>100%33,286 psi63%1335 fps100%
Hodgdon VARGET<<locked>>94%46,224 psi87%2234 fps97.9%
IMR 3031<<locked>>94%45,252 psi85%2264 fps100%
IMR 4064<<locked>>98%47,181 psi89%2231 fps97.1%
IMR 4198<<locked>>86%46,978 psi89%2152 fps100%
IMR 4895<<locked>>96%45,411 psi86%2267 fps97.5%
IMR 8208 XBR<<locked>>92%46,833 psi88%2228 fps98.6%
Lovex D073.4<<locked>>82%46,383 psi88%2218 fps99.5%
Lovex D073.5<<locked>>88%46,514 psi88%2221 fps99.2%
Lovex D073.6<<locked>>96%47,485 psi90%2280 fps99.7%
Lovex S060<<locked>>92%46,006 psi87%2169 fps97.3%
Lovex S062<<locked>>98%46,311 psi87%2238 fps98.7%
Norma 200<<locked>>82%45,643 psi86%2156 fps100%
Norma 201<<locked>>94%45,890 psi87%2215 fps98.6%
Norma 202<<locked>>94%45,643 psi86%2228 fps99.8%
Norma 203B<<locked>>98%46,195 psi87%2270 fps97.6%
Ramshot Big Game<<locked>>98%46,731 psi88%2287 fps97.2%
Ramshot Wild Boar<<locked>>92%45,919 psi87%2251 fps97.3%
Ramshot X-Terminator<<locked>>88%45,397 psi86%2185 fps97%
ReloadSwiss RS 14ᴾ<<locked>>100%33,518 psi63%1371 fps100%
ReloadSwiss RS 40<<locked>>88%46,818 psi88%2221 fps99.5%
ReloadSwiss RS 52<<locked>>96%46,253 psi87%2323 fps96.9%
ReloadSwiss RS 60ᴾ<<locked>>100%43,816 psi83%2303 fps99.2%
Rottweil R 901<<locked>>92%47,311 psi89%2215 fps99.8%
Rottweil R 902<<locked>>96%46,369 psi88%2215 fps98.6%
Rottweil R 903ᴾ<<locked>>100%41,945 psi79%2211 fps97.3%
Shooters World AR Plus<<locked>>82%46,383 psi88%2218 fps99.5%
Shooters World Match Rifle<<locked>>96%47,485 psi90%2280 fps99.7%
Shooters World Precision<<locked>>98%46,311 psi87%2238 fps98.7%
Shooters World Tactical Rifle<<locked>>86%46,978 psi89%2192 fps98.3%
SNPE Vectan SP 10<<locked>>84%45,934 psi87%2221 fps99.8%
SNPE Vectan SP 11ᴾ<<locked>>100%44,962 psi85%2267 fps96.9%
SNPE Vectan SP 3<<locked>>86%46,528 psi88%2188 fps100%
SNPE Vectan SP 9<<locked>>94%45,179 psi85%2228 fps97.2%
SNPE Vectan Tubal 3000<<locked>>92%45,948 psi87%2149 fps99.8%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%47,543 psi90%2182 fps100%
Somchem S321<<locked>>90%47,543 psi90%2260 fps99%
Somchem S335<<locked>>94%47,456 psi90%2188 fps100%
Somchem S341<<locked>>94%47,195 psi89%2244 fps97.4%
Somchem S355ᴾ<<locked>>100%43,381 psi82%2218 fps97.4%
Vihtavuori N130<<locked>>88%46,108 psi87%2139 fps100%
Vihtavuori N133<<locked>>92%45,542 psi86%2146 fps100%
Vihtavuori N135<<locked>>98%47,094 psi89%2238 fps100%
Vihtavuori N140<<locked>>96%46,238 psi87%2215 fps99.9%
Vihtavuori N150ᴾ<<locked>>100%41,800 psi79%2169 fps98.2%
Vihtavuori N530<<locked>>92%47,311 psi89%2228 fps98.7%
Vihtavuori N540<<locked>>98%47,703 psi90%2254 fps99.9%
Winchester 748<<locked>>92%45,092 psi85%2257 fps99.1%
Winchester StaBALL Match<<locked>>96%47,268 psi89%2277 fps98.2%

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

Start Load - Barrel Length: 23.6"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%33,431 psi63%1982 fps99.7%
Accurate 2200<<locked>>80%43,337 psi82%2175 fps95.9%
Accurate 2230<<locked>>80%42,801 psi81%2178 fps96.2%
Accurate 2460<<locked>>80%35,462 psi67%2044 fps98.3%
Accurate 2495<<locked>>80%25,657 psi48%1890 fps98.5%
Accurate 2520<<locked>>80%31,038 psi59%1998 fps96.8%
Accurate 4064<<locked>>80%24,381 psi46%1867 fps95.3%
Accurate LT-30<<locked>>80%41,959 psi79%2054 fps99.9%
Accurate LT-32<<locked>>80%42,337 psi80%2064 fps99.1%
ADI AR 2206H<<locked>>86%36,564 psi69%2083 fps95%
ADI AR 2207<<locked>>80%45,049 psi85%2116 fps100%
ADI AR 2208<<locked>>94%39,972 psi76%2123 fps95%
ADI AR 2219<<locked>>80%40,161 psi76%2136 fps99.8%
ADI Benchmark 8208<<locked>>80%32,489 psi61%1982 fps95%
Alliant AR-Comp<<locked>>80%30,516 psi58%1998 fps100%
Alliant Power Pro 1200-R<<locked>>80%36,695 psi69%2126 fps95.9%
Alliant Power Pro 2000-MR<<locked>>94%43,642 psi82%2274 fps95.3%
Alliant Reloder- TS 15.5<<locked>>90%33,562 psi63%2057 fps95.2%
Alliant Reloder-10x<<locked>>80%38,174 psi72%2067 fps100%
Alliant Reloder-15<<locked>>92%38,972 psi74%2149 fps95.1%
Alliant Reloder-17<<locked>>98%38,638 psi73%2195 fps95.4%
Baschieri & Pellagri 106<<locked>>80%40,379 psi76%2054 fps99.9%
Baschieri & Pellagri 107<<locked>>92%43,714 psi83%2218 fps95.6%
Bofors RP3<<locked>>90%32,750 psi62%2057 fps95.1%
Hodgdon Benchmark<<locked>>80%34,983 psi66%1991 fps96.5%
Hodgdon BL-C2<<locked>>82%31,676 psi60%2024 fps95.6%
Hodgdon CFE22324.6 gr86%40,495 psi76%2215 fps95.4%
Hodgdon H322<<locked>>80%36,811 psi70%2080 fps99.4%
Hodgdon H335<<locked>>80%36,840 psi70%2090 fps98.8%
Hodgdon H380<<locked>>98%44,991 psi85%2234 fps95.1%
Hodgdon H4895<<locked>>84%34,592 psi65%2054 fps95%
Hodgdon LEVERevolution24.1 gr88%35,157 psi66%2103 fps95.5%
Hodgdon TrailBoss<<locked>>80%24,918 psi47%1194 fps100%
Hodgdon VARGET<<locked>>86%36,085 psi68%2064 fps95.3%
IMR 3031<<locked>>80%29,254 psi55%1985 fps98.6%
IMR 4064<<locked>>92%39,436 psi74%2110 fps95.2%
IMR 4198<<locked>>80%39,479 psi75%2047 fps100%
IMR 4895<<locked>>90%37,492 psi71%2136 fps95.5%
IMR 8208 XBR<<locked>>80%32,489 psi61%1982 fps95%
Lovex D073.4<<locked>>80%43,613 psi82%2178 fps99.2%
Lovex D073.5<<locked>>80%35,317 psi67%2044 fps97.1%
Lovex D073.6<<locked>>80%27,862 psi53%1939 fps95.5%
Lovex S060<<locked>>86%38,218 psi72%2047 fps95.4%
Lovex S062<<locked>>86%31,995 psi60%1995 fps95.1%
Norma 200<<locked>>80%42,960 psi81%2119 fps100%
Norma 201<<locked>>84%33,707 psi64%2011 fps95.7%
Norma 202<<locked>>80%29,515 psi56%1946 fps96.9%
Norma 203B<<locked>>92%38,174 psi72%2142 fps95.6%
Ramshot Big Game<<locked>>92%38,406 psi73%2152 fps95%
Ramshot Wild Boar<<locked>>86%37,666 psi71%2116 fps95.2%
Ramshot X-Terminator<<locked>>84%40,059 psi76%2103 fps95.7%
ReloadSwiss RS 14<<locked>>80%24,787 psi47%1220 fps100%
ReloadSwiss RS 40<<locked>>80%36,419 psi69%2057 fps97.8%
ReloadSwiss RS 5224.9 gr92%40,553 psi77%2228 fps95.4%
ReloadSwiss RS 60<<locked>>90%32,111 psi61%2070 fps95.6%
Rottweil R 901<<locked>>80%33,243 psi63%1982 fps97.7%
Rottweil R 902<<locked>>84%32,053 psi61%1972 fps95%
Rottweil R 903<<locked>>94%34,766 psi66%2090 fps95.4%
Shooters World AR Plus<<locked>>80%43,613 psi82%2178 fps99.2%
Shooters World Match Rifle<<locked>>80%27,862 psi53%1939 fps95.5%
Shooters World Precision<<locked>>86%31,995 psi60%1995 fps95.1%
Shooters World Tactical Rifle<<locked>>80%38,276 psi72%2060 fps96.5%
SNPE Vectan SP 10<<locked>>80%40,379 psi76%2139 fps99.2%
SNPE Vectan SP 11<<locked>>96%39,639 psi75%2178 fps95.5%
SNPE Vectan SP 3<<locked>>80%38,551 psi73%2070 fps99.9%
SNPE Vectan SP 9<<locked>>88%37,492 psi71%2103 fps95.2%
SNPE Vectan Tubal 3000<<locked>>80%31,778 psi60%1916 fps97.4%
SNPE Vectan Tubal 5000<<locked>>80%25,759 psi49%1808 fps96.4%
Somchem S321<<locked>>80%34,156 psi65%2041 fps96.1%
Somchem S335<<locked>>80%31,154 psi59%1926 fps98.1%
Somchem S341<<locked>>88%38,624 psi73%2113 fps95.3%
Somchem S355<<locked>>94%36,216 psi68%2096 fps95.5%
Vihtavuori N130<<locked>>80%36,230 psi68%1995 fps100%
Vihtavuori N133<<locked>>80%31,575 psi60%1926 fps99.4%
Vihtavuori N135<<locked>>80%26,643 psi50%1896 fps98.6%
Vihtavuori N140<<locked>>80%27,891 psi53%1896 fps96.6%
Vihtavuori N150<<locked>>90%30,516 psi58%1969 fps95%
Vihtavuori N530<<locked>>80%32,010 psi60%1972 fps95%
Vihtavuori N540<<locked>>80%26,774 psi51%1883 fps95.5%
Winchester 748<<locked>>80%30,922 psi58%2001 fps95.5%
Winchester StaBALL Match<<locked>>88%36,477 psi69%2103 fps95.6%

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 81 powders for 6.5 x 50 R loaded with the .264 | 144gr | Sierra MatchKing. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,323 fps; across all powders the maximum-charge window runs from 1,335 fps to 2,323 fps. Accurate 4064 gives the best case fill at 100 %, and 81 of the 81 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (365 MPa), the top charges use 63–90 %, leaving at least 10 % headroom. The 144.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, ADI AR 2208, Alliant Reloder- TS 15.5 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. ReloadSwiss RS 52, Hodgdon CFE223, Hodgdon LEVERevolution rank at the top here: for 6.5 x 50 R with the .264 | 144gr | Sierra MatchKing 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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