Load data for 6.5 x 50 R + .264 | 142gr | Sierra MatchKing

6.5 x 50 R cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:142 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:1:8.5

Load data in caliber 6.5 x 50 R with .264 | 142gr | Sierra MatchKing bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Hodgdon LEVERevolution and Hodgdon BL-C2.

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.

A valid access license is required to use the Personalized Load Calculator.

You can find more information in our FAQ: How can I use the Personalized Load Calculator?

Max Load - Barrel Length: 23.6"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>92%47,253 psi89%2205 fps100%
Accurate 2200<<locked>>82%45,107 psi85%2211 fps96%
Accurate 2230<<locked>>82%45,078 psi85%2221 fps96.5%
Accurate 2460<<locked>>88%45,266 psi86%2211 fps99.6%
Accurate 2495ᴾ<<locked>>100%47,906 psi90%2277 fps100%
Accurate 2520<<locked>>92%45,556 psi86%2254 fps99.5%
Accurate 4064ᴾ<<locked>>100%44,483 psi84%2260 fps99.9%
Accurate LT-30<<locked>>84%46,369 psi88%2129 fps100%
Accurate LT-32<<locked>>84%46,789 psi88%2139 fps99.5%
ADI AR 2206H<<locked>>94%45,905 psi87%2251 fps97.2%
ADI AR 2207<<locked>>82%46,833 psi88%2152 fps100%
ADI AR 2208ᴾ<<locked>>100%46,746 psi88%2241 fps96.5%
ADI AR 2219<<locked>>86%47,863 psi90%2260 fps100%
ADI Benchmark 8208<<locked>>92%45,890 psi87%2224 fps98.3%
Alliant AR-Comp<<locked>>94%46,325 psi88%2260 fps100%
Alliant Power Pro 1200-R<<locked>>88%46,586 psi88%2303 fps98.1%
Alliant Reloder- TS 15.5ᴾ<<locked>>100%44,846 psi85%2260 fps97.9%
Alliant Reloder-10x<<locked>>88%47,761 psi90%2218 fps100%
Alliant Reloder-15<<locked>>98%46,209 psi87%2277 fps96.7%
Baschieri & Pellagri 106<<locked>>84%44,860 psi85%2133 fps100%
Bofors RP3ᴾ<<locked>>100%44,309 psi84%2267 fps97.9%
Hodgdon Benchmark<<locked>>90%45,861 psi87%2182 fps98.7%
Hodgdon BL-C2<<locked>>94%46,093 psi87%2283 fps98.9%
Hodgdon CFE223<<locked>>90%45,121 psi85%2303 fps96.3%
Hodgdon H322<<locked>>88%46,688 psi88%2244 fps100%
Hodgdon H335<<locked>>88%46,934 psi89%2257 fps99.8%
Hodgdon H4895<<locked>>94%46,108 psi87%2260 fps97.8%
Hodgdon LEVERevolution<<locked>>98%47,123 psi89%2320 fps98.3%
Hodgdon TrailBossᴾ<<locked>>100%33,533 psi63%1345 fps100%
Hodgdon VARGET<<locked>>94%45,266 psi86%2231 fps97.5%
IMR 3031<<locked>>96%47,065 psi89%2303 fps100%
IMR 4064<<locked>>98%46,267 psi87%2228 fps96.7%
IMR 4198<<locked>>86%46,543 psi88%2159 fps100%
IMR 4895<<locked>>98%47,195 psi89%2303 fps97.6%
IMR 8208 XBR<<locked>>92%45,890 psi87%2224 fps98.3%
Lovex D073.4<<locked>>82%45,890 psi87%2221 fps99.3%
Lovex D073.5<<locked>>88%44,991 psi85%2211 fps98.9%
Lovex D073.6<<locked>>96%46,412 psi88%2277 fps99.5%
Lovex S060<<locked>>94%47,892 psi90%2208 fps97.5%
Lovex S062<<locked>>98%45,368 psi86%2234 fps98.3%
Norma 200<<locked>>82%45,179 psi85%2165 fps100%
Norma 201<<locked>>96%47,718 psi90%2254 fps98.6%
Norma 202<<locked>>94%44,672 psi84%2224 fps99.7%
Norma 203B<<locked>>98%45,223 psi85%2267 fps97.1%
Ramshot Big Game<<locked>>98%45,397 psi86%2277 fps96.7%
Ramshot Wild Boar<<locked>>94%47,776 psi90%2287 fps97.4%
Ramshot X-Terminator<<locked>>90%47,703 psi90%2228 fps97.2%
ReloadSwiss RS 14ᴾ<<locked>>100%33,243 psi63%1375 fps100%
ReloadSwiss RS 40<<locked>>88%45,847 psi87%2221 fps99.3%
ReloadSwiss RS 52<<locked>>96%45,339 psi86%2320 fps96.4%
ReloadSwiss RS 60ᴾ<<locked>>100%43,047 psi81%2297 fps98.8%
Rottweil R 901<<locked>>92%46,282 psi87%2215 fps99.7%
Rottweil R 902<<locked>>96%45,426 psi86%2211 fps98.3%
Rottweil R 903ᴾ<<locked>>100%40,973 psi77%2208 fps96.9%
Shooters World AR Plus<<locked>>82%45,890 psi87%2221 fps99.3%
Shooters World Match Rifle<<locked>>96%46,412 psi88%2277 fps99.5%
Shooters World Precision<<locked>>98%45,368 psi86%2234 fps98.3%
Shooters World Tactical Rifle<<locked>>86%46,093 psi87%2192 fps97.9%
SNPE Vectan SP 10<<locked>>84%44,991 psi85%2221 fps99.6%
SNPE Vectan SP 11ᴾ<<locked>>100%43,656 psi82%2257 fps96.3%
SNPE Vectan SP 3<<locked>>86%45,455 psi86%2188 fps100%
SNPE Vectan SP 9<<locked>>96%47,558 psi90%2274 fps97.4%
SNPE Vectan Tubal 3000<<locked>>94%47,906 psi90%2185 fps99.8%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%46,572 psi88%2182 fps100%
Somchem S321<<locked>>90%46,543 psi88%2257 fps98.7%
Somchem S335<<locked>>94%46,528 psi88%2188 fps100%
Somchem S341<<locked>>94%46,253 psi87%2241 fps97%
Somchem S355ᴾ<<locked>>100%42,438 psi80%2215 fps97%
Vihtavuori N120<<locked>>82%46,891 psi89%2113 fps100%
Vihtavuori N130<<locked>>88%45,136 psi85%2139 fps100%
Vihtavuori N133<<locked>>94%47,413 psi90%2182 fps100%
Vihtavuori N135<<locked>>98%46,006 psi87%2238 fps100%
Vihtavuori N140<<locked>>96%45,252 psi85%2211 fps99.8%
Vihtavuori N150ᴾ<<locked>>100%40,930 psi77%2165 fps97.9%
Vihtavuori N530<<locked>>92%46,354 psi88%2228 fps98.4%
Vihtavuori N540<<locked>>98%46,180 psi87%2244 fps99.7%
Winchester 748<<locked>>94%47,456 psi90%2303 fps99.2%
Winchester StaBALL Match<<locked>>96%46,354 psi88%2274 fps97.8%

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%32,561 psi62%1978 fps99.5%
Accurate 2200<<locked>>80%42,409 psi80%2169 fps95.3%
Accurate 2230<<locked>>80%41,858 psi79%2172 fps95.7%
Accurate 2460<<locked>>80%34,635 psi65%2041 fps97.9%
Accurate 2495<<locked>>80%24,874 psi47%1883 fps98.1%
Accurate 2520<<locked>>80%30,197 psi57%1991 fps96.2%
Accurate 4064<<locked>>82%25,469 psi48%1906 fps95.6%
Accurate LT-30<<locked>>80%41,133 psi78%2054 fps99.8%
Accurate LT-32<<locked>>80%41,510 psi78%2064 fps98.8%
ADI AR 2206H<<locked>>88%38,392 psi73%2129 fps95.3%
ADI AR 2207<<locked>>80%44,005 psi83%2116 fps100%
ADI AR 2208<<locked>>96%41,568 psi79%2162 fps95.2%
ADI AR 2219<<locked>>80%39,218 psi74%2133 fps99.6%
ADI Benchmark 8208<<locked>>82%33,721 psi64%2018 fps95.2%
Alliant AR-Comp<<locked>>80%29,733 psi56%1995 fps100%
Alliant Power Pro 1200-R20.8 gr80%35,781 psi68%2119 fps95.4%
Alliant Reloder- TS 15.5<<locked>>92%34,809 psi66%2093 fps95.3%
Alliant Reloder-10x<<locked>>80%37,289 psi70%2067 fps100%
Alliant Reloder-15<<locked>>94%40,495 psi76%2185 fps95.3%
Baschieri & Pellagri 106<<locked>>80%39,581 psi75%2054 fps99.7%
Bofors RP3<<locked>>92%33,953 psi64%2093 fps95.2%
Hodgdon Benchmark<<locked>>80%34,258 psi65%1988 fps96%
Hodgdon BL-C222.7 gr82%30,951 psi58%2021 fps95%
Hodgdon CFE223<<locked>>88%42,076 psi79%2254 fps95.5%
Hodgdon H322<<locked>>80%35,911 psi68%2077 fps99.1%
Hodgdon H335<<locked>>80%36,027 psi68%2087 fps98.4%
Hodgdon H4895<<locked>>86%36,347 psi69%2096 fps95.3%
Hodgdon LEVERevolution24.4 gr90%36,492 psi69%2142 fps95.7%
Hodgdon TrailBoss<<locked>>80%24,613 psi46%1198 fps100%
Hodgdon VARGET<<locked>>88%37,463 psi71%2100 fps95.5%
IMR 3031<<locked>>80%28,529 psi54%1978 fps98.1%
IMR 4064<<locked>>94%41,002 psi77%2146 fps95.4%
IMR 4198<<locked>>80%39,044 psi74%2054 fps100%
IMR 4895<<locked>>92%38,899 psi73%2172 fps95.6%
IMR 8208 XBR<<locked>>82%33,721 psi64%2018 fps95.2%
Lovex D073.4<<locked>>80%42,569 psi80%2175 fps98.9%
Lovex D073.5<<locked>>80%34,461 psi65%2041 fps96.6%
Lovex D073.6<<locked>>82%29,240 psi55%1982 fps95.8%
Lovex S060<<locked>>86%37,898 psi72%2051 fps95%
Lovex S062<<locked>>88%33,591 psi63%2034 fps95.4%
Norma 200<<locked>>80%41,945 psi79%2119 fps100%
Norma 201<<locked>>84%33,330 psi63%2014 fps95.2%
Norma 202<<locked>>80%29,109 psi55%1949 fps96.5%
Norma 203B<<locked>>92%37,304 psi70%2136 fps95%
Ramshot Big Game<<locked>>94%39,914 psi75%2188 fps95.1%
Ramshot Wild Boar<<locked>>88%39,146 psi74%2152 fps95.4%
Ramshot X-Terminator<<locked>>84%39,247 psi74%2096 fps95.1%
ReloadSwiss RS 14<<locked>>80%24,482 psi46%1224 fps100%
ReloadSwiss RS 40<<locked>>80%35,636 psi67%2054 fps97.4%
ReloadSwiss RS 52<<locked>>94%42,119 psi80%2267 fps95.6%
ReloadSwiss RS 60<<locked>>92%33,359 psi63%2106 fps95.8%
Rottweil R 901<<locked>>80%32,851 psi62%1985 fps97.4%
Rottweil R 902<<locked>>86%33,678 psi64%2014 fps95.3%
Rottweil R 903<<locked>>96%36,143 psi68%2126 fps95.5%
Shooters World AR Plus<<locked>>80%42,569 psi80%2175 fps98.9%
Shooters World Match Rifle<<locked>>82%29,240 psi55%1982 fps95.8%
Shooters World Precision<<locked>>88%33,591 psi63%2034 fps95.4%
Shooters World Tactical Rifle<<locked>>80%37,956 psi72%2064 fps96.1%
SNPE Vectan SP 10<<locked>>80%39,479 psi75%2136 fps99%
SNPE Vectan SP 11<<locked>>98%41,176 psi78%2215 fps95.7%
SNPE Vectan SP 3<<locked>>80%38,072 psi72%2077 fps99.8%
SNPE Vectan SP 9<<locked>>90%39,392 psi74%2146 fps95.5%
SNPE Vectan Tubal 3000<<locked>>80%31,444 psi59%1919 fps97.1%
SNPE Vectan Tubal 5000<<locked>>80%25,454 psi48%1811 fps95.9%
Somchem S321<<locked>>80%33,388 psi63%2037 fps95.5%
Somchem S335<<locked>>80%30,429 psi57%1919 fps97.7%
Somchem S341<<locked>>90%40,611 psi77%2156 fps95.6%
Somchem S355<<locked>>94%35,404 psi67%2093 fps95%
Vihtavuori N120<<locked>>80%44,034 psi83%2080 fps100%
Vihtavuori N130<<locked>>80%35,839 psi68%1998 fps100%
Vihtavuori N133<<locked>>80%31,198 psi59%1929 fps99.2%
Vihtavuori N135<<locked>>80%26,266 psi50%1896 fps98.3%
Vihtavuori N140<<locked>>80%27,543 psi52%1896 fps96.2%
Vihtavuori N150<<locked>>92%32,082 psi61%2008 fps95.3%
Vihtavuori N530<<locked>>82%33,663 psi64%2018 fps95.3%
Vihtavuori N540<<locked>>80%26,455 psi50%1886 fps95%
Winchester 748<<locked>>82%32,024 psi60%2037 fps95.6%
Winchester StaBALL Match<<locked>>88%35,723 psi67%2100 fps95%

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 78 powders for 6.5 x 50 R loaded with the .264 | 142gr | Sierra MatchKing. Hodgdon LEVERevolution delivers the highest muzzle velocity at 2,320 fps; across all powders the maximum-charge window runs from 1,345 fps to 2,320 fps. Accurate 2495 gives the best case fill at 100 %, and 78 of the 78 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 142.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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 Power Pro 1200-R, Hodgdon LEVERevolution, Hodgdon BL-C2 rank at the top here: for 6.5 x 50 R with the .264 | 142gr | 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.

← All load data