Load data for 6.5 x 70 R + .264 | 123gr | MRR Green Hunting

6.5 x 70 R cartridge drawing
MRR logo

Load Specifications

Bullet Manufacturer:MRR
Bullet Weight:123 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Case Length (l3):2.736"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:38.5 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:25.6"
Max. allowed Pressure:40,611 psi
Recommended Twist Rate:1:9.5

Load data in caliber 6.5 x 70 R with .264 | 123gr | MRR Green Hunting bullet and 29 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 4064, Vihtavuori N540 and Vihtavuori N135.

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: 25.6"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>82%35,476 psi87%2247 fps99.8%
Accurate 2495<<locked>>90%35,853 psi88%2323 fps99.9%
Accurate 2520<<locked>>84%36,013 psi89%2323 fps97.8%
Accurate 4064<<locked>>92%36,013 psi89%2346 fps98.8%
Alliant AR-Comp<<locked>>84%35,027 psi86%2316 fps100%
Hodgdon BL-C2<<locked>>86%36,651 psi90%2352 fps96.8%
Hodgdon TrailBossᴾ<<locked>>100%33,214 psi82%1499 fps100%
IMR 3031<<locked>>86%35,476 psi87%2343 fps99.5%
Lovex D073.6<<locked>>86%34,447 psi85%2303 fps97.4%
Lovex S062<<locked>>90%36,608 psi90%2310 fps96.2%
Norma 201<<locked>>86%36,289 psi89%2287 fps96%
Norma 202<<locked>>86%35,969 psi89%2303 fps98.4%
ReloadSwiss RS 14ᴾ<<locked>>100%33,344 psi82%1535 fps100%
ReloadSwiss RS 60<<locked>>94%36,463 psi90%2398 fps97%
Rottweil R 901<<locked>>82%35,694 psi88%2257 fps98%
Rottweil R 902<<locked>>88%36,593 psi90%2283 fps96.1%
Shooters World Match Rifle<<locked>>86%34,447 psi85%2303 fps97.4%
Shooters World Precision<<locked>>90%36,608 psi90%2310 fps96.2%
SNPE Vectan Tubal 3000<<locked>>84%36,201 psi89%2221 fps98.2%
SNPE Vectan Tubal 5000<<locked>>90%35,288 psi87%2224 fps98.9%
Somchem S321<<locked>>82%36,709 psi90%2316 fps96.4%
Somchem S335<<locked>>84%35,404 psi87%2228 fps98.8%
Vihtavuori N133<<locked>>84%35,984 psi89%2231 fps99.8%
Vihtavuori N135<<locked>>88%34,563 psi85%2283 fps99.8%
Vihtavuori N140<<locked>>88%36,085 psi89%2287 fps98.6%
Vihtavuori N150<<locked>>94%35,143 psi87%2283 fps96.3%
Vihtavuori N530<<locked>>84%36,608 psi90%2287 fps96.1%
Vihtavuori N540<<locked>>88%34,911 psi86%2280 fps97.9%
Winchester 748<<locked>>84%35,230 psi87%2320 fps96.6%

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

Start Load - Barrel Length: 25.6"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%33,547 psi83%2208 fps99.5%
Accurate 2495<<locked>>80%25,962 psi64%2103 fps98.2%
Accurate 2520<<locked>>80%31,502 psi78%2228 fps96.5%
Accurate 406423.4 gr82%26,063 psi64%2116 fps95.6%
Alliant AR-Comp<<locked>>80%30,560 psi75%2221 fps100%
Hodgdon BL-C2<<locked>>82%31,850 psi78%2251 fps95.2%
Hodgdon TrailBoss<<locked>>80%24,831 psi61%1342 fps100%
IMR 3031<<locked>>80%29,312 psi72%2205 fps98.2%
Lovex D073.6<<locked>>80%28,108 psi69%2159 fps95.1%
Lovex S062<<locked>>88%34,330 psi85%2264 fps95.5%
Norma 201<<locked>>84%34,026 psi84%2238 fps95.3%
Norma 202<<locked>>80%29,820 psi73%2169 fps96.5%
ReloadSwiss RS 14<<locked>>80%24,671 psi61%1371 fps100%
ReloadSwiss RS 60<<locked>>90%32,227 psi79%2293 fps95%
Rottweil R 901<<locked>>80%33,446 psi82%2208 fps97.4%
Rottweil R 902<<locked>>86%34,301 psi84%2238 fps95.3%
Shooters World Match Rifle<<locked>>80%28,108 psi69%2159 fps95.1%
Shooters World Precision<<locked>>88%34,330 psi85%2264 fps95.5%
SNPE Vectan Tubal 3000<<locked>>80%32,039 psi79%2136 fps97.1%
SNPE Vectan Tubal 5000<<locked>>80%25,947 psi64%2014 fps96%
Somchem S321<<locked>>80%34,432 psi85%2270 fps95.7%
Somchem S335<<locked>>80%31,488 psi78%2146 fps97.8%
Vihtavuori N133<<locked>>80%31,850 psi78%2149 fps99.2%
Vihtavuori N13522.1 gr80%26,861 psi66%2110 fps98.3%
Vihtavuori N140<<locked>>80%28,123 psi69%2110 fps96.2%
Vihtavuori N150<<locked>>92%32,924 psi81%2234 fps95.5%
Vihtavuori N530<<locked>>82%34,272 psi84%2241 fps95.3%
Vihtavuori N54023.9 gr80%27,035 psi67%2096 fps95.1%
Winchester 748<<locked>>80%30,995 psi76%2221 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 29 powders for 6.5 x 70 R loaded with the .264 | 123gr | MRR Green Hunting. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,398 fps; across all powders the maximum-charge window runs from 1,499 fps to 2,398 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 29 of the 29 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (280 MPa), the top charges use 82–90 %, leaving at least 10 % headroom. The 123.0 gr projectile in 0.264" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 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. Accurate 4064, Vihtavuori N540, Vihtavuori N135 rank at the top here: for 6.5 x 70 R with the .264 | 123gr | MRR Green Hunting 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