Load data for 6.5 x 50 R + .263 | 123gr | Prvi Partizan SP

6.5 x 50 R cartridge drawing
Prvi Partizan logo

Load Specifications

Bullet Manufacturer:Prvi Partizan
Bullet Weight:123 gr
Bullet Diameter:0.263"
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:1:11.0

Load data in caliber 6.5 x 50 R with .263 | 123gr | Prvi Partizan SP bullet and 73 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, IMR 3031 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.

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Max Load - Barrel Length: 23.6"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>92%46,267 psi87%2415 fps100%
Accurate 2230<<locked>>84%47,601 psi90%2477 fps96.1%
Accurate 2460<<locked>>90%47,747 psi90%2464 fps99.4%
Accurate 2495ᴾ<<locked>>100%47,442 psi90%2493 fps100%
Accurate 2520<<locked>>92%44,715 psi84%2457 fps98.9%
Accurate 4064ᴾ<<locked>>100%44,019 psi83%2470 fps99.5%
Accurate LT-30<<locked>>84%46,166 psi87%2339 fps99.8%
Accurate LT-32<<locked>>84%46,543 psi88%2352 fps99%
ADI AR 2206H<<locked>>94%45,643 psi86%2461 fps96.2%
ADI AR 2207<<locked>>82%46,108 psi87%2365 fps100%
ADI AR 2219<<locked>>86%47,326 psi89%2477 fps99.9%
ADI Benchmark 8208<<locked>>92%45,440 psi86%2431 fps97.5%
Alliant AR-Comp<<locked>>94%45,948 psi87%2484 fps100%
Alliant Power Pro 1200-R<<locked>>88%45,556 psi86%2510 fps97%
Alliant Reloder- TS 15.5ᴾ<<locked>>100%43,888 psi83%2461 fps96.9%
Alliant Reloder-10x<<locked>>88%47,065 psi89%2434 fps100%
Alliant Reloder-7<<locked>>82%47,442 psi90%2379 fps100%
Baschieri & Pellagri 106<<locked>>86%46,992 psi89%2372 fps99.9%
Bofors RP3ᴾ<<locked>>100%43,395 psi82%2464 fps96.9%
Hodgdon Benchmark<<locked>>90%45,426 psi86%2388 fps98%
Hodgdon BL-C2<<locked>>94%45,368 psi86%2490 fps98.1%
Hodgdon CFE223<<locked>>92%47,645 psi90%2562 fps96%
Hodgdon H322<<locked>>88%45,716 psi86%2451 fps99.8%
Hodgdon H335<<locked>>88%46,659 psi88%2474 fps99.5%
Hodgdon H4198<<locked>>82%47,630 psi90%2375 fps99.7%
Hodgdon H4895<<locked>>94%45,832 psi87%2474 fps96.9%
Hodgdon LEVERevolution<<locked>>98%46,630 psi88%2530 fps97.4%
Hodgdon TrailBossᴾ<<locked>>100%33,301 psi63%1493 fps100%
Hodgdon VARGET<<locked>>96%47,558 psi90%2477 fps97.1%
IMR 3031<<locked>>96%46,398 psi88%2520 fps100%
IMR 4198<<locked>>86%45,716 psi86%2369 fps100%
IMR 4895<<locked>>98%46,267 psi87%2507 fps96.5%
IMR 8208 XBR<<locked>>92%45,440 psi86%2431 fps97.5%
Lovex D073.4<<locked>>82%44,933 psi85%2425 fps98.7%
Lovex D073.5<<locked>>90%47,674 psi90%2467 fps98.7%
Lovex D073.6<<locked>>96%45,832 psi87%2487 fps99%
Lovex S060<<locked>>94%47,021 psi89%2408 fps96.4%
Lovex S062ᴾ<<locked>>100%47,297 psi89%2480 fps97.9%
Norma 200<<locked>>84%46,833 psi88%2408 fps100%
Norma 201<<locked>>96%46,992 psi89%2461 fps97.8%
Norma 202<<locked>>96%47,137 psi89%2480 fps99.5%
Norma 203Bᴾ<<locked>>100%47,326 psi89%2513 fps96.7%
Ramshot Wild Boar<<locked>>94%47,036 psi89%2493 fps96.4%
Ramshot X-Terminator<<locked>>90%47,166 psi89%2434 fps96.2%
ReloadSwiss RS 14ᴾ<<locked>>100%33,388 psi63%1529 fps100%
ReloadSwiss RS 40<<locked>>88%45,237 psi85%2428 fps98.6%
ReloadSwiss RS 52<<locked>>98%47,776 psi90%2575 fps96%
ReloadSwiss RS 60ᴾ<<locked>>100%42,250 psi80%2493 fps97.8%
Rottweil R 901<<locked>>92%45,992 psi87%2428 fps99.2%
Rottweil R 902<<locked>>98%47,340 psi89%2457 fps97.9%
Shooters World AR Plus<<locked>>82%44,933 psi85%2425 fps98.7%
Shooters World Match Rifle<<locked>>96%45,832 psi87%2487 fps99%
Shooters World Precisionᴾ<<locked>>100%47,297 psi89%2480 fps97.9%
Shooters World Tactical Rifle<<locked>>86%45,658 psi86%2395 fps97.1%
SNPE Vectan SP 10<<locked>>86%47,790 psi90%2480 fps99.5%
SNPE Vectan SP 3<<locked>>88%47,630 psi90%2441 fps100%
SNPE Vectan SP 9<<locked>>96%46,963 psi89%2480 fps96.4%
SNPE Vectan Tubal 3000<<locked>>94%47,398 psi90%2395 fps99.4%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%45,701 psi86%2382 fps99.8%
Somchem S321<<locked>>90%45,876 psi87%2464 fps97.9%
Somchem S335<<locked>>94%46,050 psi87%2395 fps99.7%
Somchem S341<<locked>>94%45,455 psi86%2441 fps95.9%
Somchem S355ᴾ<<locked>>100%42,061 psi79%2418 fps95.9%
Vihtavuori N120<<locked>>82%46,166 psi87%2326 fps100%
Vihtavuori N130<<locked>>90%47,529 psi90%2388 fps100%
Vihtavuori N133<<locked>>94%46,876 psi89%2395 fps100%
Vihtavuori N135<<locked>>98%45,310 psi86%2451 fps100%
Vihtavuori N140<<locked>>98%47,384 psi90%2457 fps99.7%
Vihtavuori N150ᴾ<<locked>>100%40,466 psi76%2362 fps96.9%
Vihtavuori N530<<locked>>92%45,716 psi86%2431 fps97.6%
Vihtavuori N540<<locked>>98%45,542 psi86%2451 fps99.2%
Winchester 748<<locked>>94%46,456 psi88%2507 fps98.5%
Winchester StaBALL Match<<locked>>96%46,050 psi87%2484 fps96.9%

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%32,039 psi61%2162 fps98.9%
Accurate 2230<<locked>>82%44,512 psi84%2428 fps95.3%
Accurate 2460<<locked>>80%34,360 psi65%2234 fps97%
Accurate 2495<<locked>>80%24,468 psi46%2051 fps96.9%
Accurate 2520<<locked>>82%31,995 psi60%2221 fps95.8%
Accurate 4064<<locked>>86%28,166 psi53%2156 fps95.7%
Accurate LT-30<<locked>>80%40,524 psi77%2247 fps99.3%
Accurate LT-32<<locked>>80%40,872 psi77%2257 fps98.1%
ADI AR 2206H<<locked>>92%42,772 psi81%2411 fps95.5%
ADI AR 2207<<locked>>80%43,555 psi82%2329 fps100%
ADI AR 2219<<locked>>80%38,653 psi73%2333 fps99%
ADI Benchmark 8208<<locked>>86%37,492 psi71%2290 fps95.4%
Alliant AR-Comp<<locked>>80%29,457 psi56%2182 fps99.9%
Alliant Power Pro 1200-R24.4 gr84%40,277 psi76%2415 fps95.7%
Alliant Reloder- TS 15.5<<locked>>96%38,928 psi74%2372 fps95.6%
Alliant Reloder-10x<<locked>>80%36,796 psi70%2264 fps99.9%
Alliant Reloder-7<<locked>>80%44,947 psi85%2343 fps100%
Baschieri & Pellagri 106<<locked>>80%39,088 psi74%2247 fps99.3%
Bofors RP3<<locked>>96%38,290 psi72%2375 fps95.5%
Hodgdon Benchmark<<locked>>82%35,679 psi67%2211 fps95.5%
Hodgdon BL-C226.6 gr86%34,925 psi66%2300 fps95.4%
Hodgdon CFE223<<locked>>90%44,730 psi84%2510 fps95.2%
Hodgdon H322<<locked>>80%35,346 psi67%2267 fps98.4%
Hodgdon H335<<locked>>80%35,563 psi67%2277 fps97.5%
Hodgdon H4198<<locked>>80%44,643 psi84%2329 fps99.5%
Hodgdon H4895<<locked>>90%40,277 psi76%2375 fps95.5%
Hodgdon LEVERevolution<<locked>>92%38,580 psi73%2385 fps95.2%
Hodgdon TrailBoss<<locked>>80%24,439 psi46%1329 fps100%
Hodgdon VARGET<<locked>>92%41,814 psi79%2382 fps95.7%
IMR 303122.4 gr80%27,949 psi53%2152 fps96.9%
IMR 4198<<locked>>80%38,174 psi72%2247 fps100%
IMR 4895<<locked>>94%41,031 psi78%2418 fps95.1%
IMR 8208 XBR<<locked>>86%37,492 psi71%2290 fps95.4%
Lovex D073.4<<locked>>80%41,989 psi79%2375 fps98.2%
Lovex D073.5<<locked>>80%33,982 psi64%2224 fps95.4%
Lovex D073.6<<locked>>84%30,501 psi58%2201 fps95.1%
Lovex S060<<locked>>90%41,901 psi79%2323 fps95.1%
Lovex S062<<locked>>92%37,289 psi70%2306 fps95.5%
Norma 200<<locked>>80%41,539 psi78%2326 fps100%
Norma 201<<locked>>88%37,028 psi70%2283 fps95.4%
Norma 202<<locked>>80%28,413 psi54%2116 fps95%
Norma 203B<<locked>>96%41,524 psi78%2418 fps95.2%
Ramshot Wild Boar<<locked>>92%44,121 psi83%2444 fps95.7%
Ramshot X-Terminator<<locked>>88%43,903 psi83%2382 fps95.4%
ReloadSwiss RS 14<<locked>>80%24,656 psi47%1365 fps100%
ReloadSwiss RS 40<<locked>>80%35,215 psi67%2244 fps96.3%
ReloadSwiss RS 52<<locked>>96%44,715 psi84%2526 fps95.2%
ReloadSwiss RS 60<<locked>>94%35,012 psi66%2336 fps95.1%
Rottweil R 901<<locked>>80%32,010 psi60%2159 fps96.1%
Rottweil R 902<<locked>>90%37,275 psi70%2280 fps95.4%
Shooters World AR Plus<<locked>>80%41,989 psi79%2375 fps98.2%
Shooters World Match Rifle<<locked>>84%30,501 psi58%2201 fps95.1%
Shooters World Precision<<locked>>92%37,289 psi70%2306 fps95.5%
Shooters World Tactical Rifle<<locked>>82%39,639 psi75%2293 fps95.6%
SNPE Vectan SP 10<<locked>>80%38,986 psi74%2333 fps98.2%
SNPE Vectan SP 3<<locked>>80%37,101 psi70%2267 fps99.3%
SNPE Vectan SP 9<<locked>>92%41,365 psi78%2385 fps95%
SNPE Vectan Tubal 3000<<locked>>80%30,676 psi58%2090 fps95.8%
SNPE Vectan Tubal 5000<<locked>>82%26,542 psi50%2014 fps95.3%
Somchem S321<<locked>>82%35,056 psi66%2267 fps95%
Somchem S335<<locked>>80%30,139 psi57%2100 fps96.7%
Somchem S341<<locked>>92%42,598 psi80%2395 fps95.1%
Somchem S355<<locked>>98%39,421 psi74%2369 fps95.1%
Vihtavuori N120<<locked>>80%43,656 psi82%2290 fps100%
Vihtavuori N130<<locked>>80%34,954 psi66%2182 fps99.7%
Vihtavuori N133<<locked>>80%30,443 psi58%2103 fps98.4%
Vihtavuori N135<<locked>>80%25,570 psi48%2060 fps97.1%
Vihtavuori N140<<locked>>82%28,674 psi54%2106 fps95.5%
Vihtavuori N150<<locked>>96%35,462 psi67%2267 fps95.4%
Vihtavuori N530<<locked>>86%37,449 psi71%2287 fps95.5%
Vihtavuori N540<<locked>>84%29,341 psi55%2139 fps95.2%
Winchester 748<<locked>>84%33,678 psi64%2267 fps95.1%
Winchester StaBALL Match<<locked>>92%40,045 psi76%2382 fps95.3%

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 73 powders for 6.5 x 50 R loaded with the .263 | 123gr | Prvi Partizan SP. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,575 fps; across all powders the maximum-charge window runs from 1,493 fps to 2,575 fps. Accurate 2495 gives the best case fill at 100 %, and 73 of the 73 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 123.0 gr projectile in 0.263" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, 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. Alliant Power Pro 1200-R, IMR 3031, Hodgdon BL-C2 rank at the top here: for 6.5 x 50 R with the .263 | 123gr | Prvi Partizan SP 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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