Load data for 7 x 65 R Brenneke + .285 | 173gr | Prvi Partizan FMJ BT

7 x 65 R Brenneke cartridge drawing
Prvi Partizan logo

Load Specifications

Bullet Manufacturer:Prvi Partizan
Bullet Weight:173 gr
Bullet Diameter:0.285"
Bullet Length:<<locked>>
Case Length (l3):2.56"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:66 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:55,114 psi
Recommended Twist Rate:1:12.0

Load data in caliber 7 x 65 R Brenneke with .285 | 173gr | Prvi Partizan FMJ BT bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and ReloadSwiss RS 70.

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: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2700<<locked>>84%47,993 psi87%2428 fps97.6%
Accurate 3100<<locked>>98%46,557 psi84%2503 fps98.9%
Accurate 4064<<locked>>82%49,226 psi89%2464 fps100%
Accurate 4350<<locked>>90%49,197 psi89%2556 fps99.9%
ADI AR 2208<<locked>>84%49,690 psi90%2490 fps100%
ADI AR 2209<<locked>>94%47,195 psi86%2536 fps96.6%
Alliant Reloder- TS 15.5<<locked>>82%47,253 psi86%2470 fps100%
Alliant Reloder-16<<locked>>90%47,065 psi85%2556 fps99.9%
Alliant Reloder-17<<locked>>86%47,601 psi86%2579 fps100%
Alliant Reloder-19<<locked>>96%49,559 psi90%2579 fps97.3%
Alliant Reloder-22<<locked>>98%46,572 psi85%2575 fps96.8%
Alliant Reloder-23ᴾ<<locked>>100%47,094 psi85%2575 fps100%
Alliant Reloder-25ᴾ<<locked>>100%41,075 psi75%2500 fps98.6%
Alliant Reloder-26<<locked>>98%49,763 psi90%2694 fps100%
Bofors RP15ᴾ<<locked>>100%45,600 psi83%2556 fps96.4%
Bofors RP3<<locked>>82%47,311 psi86%2477 fps100%
Bofors RP5<<locked>>98%46,572 psi85%2575 fps96.8%
Bofors RP7<<locked>>86%47,384 psi86%2461 fps97.7%
Hodgdon H380<<locked>>82%47,877 psi87%2490 fps99.6%
Hodgdon H414<<locked>>86%49,269 psi89%2569 fps98.6%
Hodgdon H4350<<locked>>88%47,152 psi86%2490 fps97.1%
Hodgdon Hybrid 100V<<locked>>92%47,036 psi85%2493 fps100%
Hodgdon LEVERevolution<<locked>>82%49,110 psi89%2530 fps100%
Hodgdon Superformance<<locked>>88%47,471 psi86%2572 fps98.1%
Hodgdon TrailBossᴾ<<locked>>100%36,390 psi66%1578 fps100%
Hodgdon VARGET<<locked>>82%49,501 psi90%2487 fps100%
IMR 4064<<locked>>84%48,936 psi89%2470 fps100%
IMR 4166 Enduron<<locked>>84%47,892 psi87%2444 fps98.3%
IMR 4350<<locked>>90%47,979 psi87%2490 fps97.9%
IMR 4451 Enduron<<locked>>86%48,921 psi89%2487 fps98.4%
IMR 4831<<locked>>94%47,688 psi87%2520 fps99.8%
Lovex S062<<locked>>82%49,414 psi90%2474 fps100%
Lovex S065<<locked>>88%48,907 psi89%2487 fps99.3%
Lovex S070<<locked>>90%49,705 psi90%2523 fps98.8%
Lovex S071ᴾ<<locked>>100%41,452 psi75%2418 fps97.9%
Norma 203B<<locked>>82%49,835 psi90%2520 fps100%
Norma 204<<locked>>90%47,993 psi87%2530 fps96.7%
Norma MRP<<locked>>98%49,269 psi89%2651 fps98.7%
Norma URP<<locked>>90%48,167 psi87%2539 fps99.8%
Ramshot Hunter<<locked>>90%47,021 psi85%2539 fps98.9%
Ramshot Magnumᴾ<<locked>>100%48,747 psi88%2595 fps97.8%
ReloadSwiss RS 14ᴾ<<locked>>100%36,912 psi67%1614 fps100%
ReloadSwiss RS 50<<locked>>82%47,993 psi87%2477 fps98.8%
ReloadSwiss RS 60<<locked>>84%47,239 psi86%2572 fps100%
ReloadSwiss RS 62<<locked>>90%48,733 psi88%2575 fps99.8%
ReloadSwiss RS 70<<locked>>90%47,442 psi86%2592 fps99.7%
ReloadSwiss RS 76ᴾ<<locked>>100%39,885 psi72%2507 fps96.2%
Rottweil R 903<<locked>>84%47,471 psi86%2477 fps100%
Rottweil R 904<<locked>>94%48,979 psi89%2516 fps95.9%
Rottweil R 905<<locked>>96%48,588 psi88%2562 fps97.3%
Rottweil R 907<<locked>>86%47,384 psi86%2461 fps97.7%
Shooters World Long Rifle<<locked>>88%48,907 psi89%2487 fps99.3%
Shooters World Precision<<locked>>82%49,414 psi90%2474 fps100%
Shooters World SW4350<<locked>>90%49,705 psi90%2523 fps98.8%
SNPE Vectan SP 11<<locked>>84%48,689 psi88%2526 fps100%
SNPE Vectan Tubal 5000<<locked>>84%49,124 psi89%2382 fps100%
SNPE Vectan Tubal 7000<<locked>>88%48,399 psi88%2441 fps98.4%
SNPE Vectan Tubal 8000<<locked>>96%48,138 psi87%2559 fps97.2%
Somchem S355<<locked>>84%48,051 psi87%2477 fps100%
Somchem S365<<locked>>92%46,847 psi85%2546 fps100%
Somchem S385<<locked>>96%49,153 psi89%2543 fps98.1%
Unknown powder<<locked>>88%48,921 psi89%2546 fps99.6%
Vihtavuori N150<<locked>>90%49,298 psi89%2464 fps100%
Vihtavuori N160<<locked>>88%49,371 psi90%2520 fps99.8%
Vihtavuori N165ᴾ<<locked>>100%46,659 psi85%2493 fps97.2%
Vihtavuori N550<<locked>>88%49,617 psi90%2562 fps99.8%
Vihtavuori N555<<locked>>98%49,153 psi89%2595 fps100%
Winchester 6.5 StaBALL<<locked>>90%49,501 psi90%2510 fps100%
Winchester 760<<locked>>86%49,269 psi89%2569 fps98.6%
Winchester StaBALL HDᴾ<<locked>>100%42,235 psi77%2618 fps100%
Winchester Supreme 780<<locked>>94%47,181 psi86%2507 fps96.6%

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

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2700<<locked>>80%42,119 psi76%2329 fps96.3%
Accurate 3100<<locked>>88%33,330 psi60%2254 fps95.5%
Accurate 4064<<locked>>80%46,340 psi84%2421 fps100%
Accurate 4350<<locked>>80%34,882 psi63%2297 fps97.8%
ADI AR 2208<<locked>>80%44,034 psi80%2398 fps99.7%
ADI AR 2209<<locked>>90%41,524 psi75%2431 fps95%
Alliant Reloder- TS 15.5<<locked>>80%44,179 psi80%2418 fps100%
Alliant Reloder-16<<locked>>80%34,374 psi62%2306 fps97.9%
Alliant Reloder-17<<locked>>80%38,754 psi70%2425 fps99.8%
Alliant Reloder-19<<locked>>90%41,147 psi75%2428 fps95.1%
Alliant Reloder-22<<locked>>94%40,959 psi74%2470 fps95.2%
Alliant Reloder-23<<locked>>80%25,135 psi46%2087 fps95.3%
Alliant Reloder-25<<locked>>92%32,039 psi58%2290 fps95.2%
Alliant Reloder-2647.3 gr84%30,342 psi55%2290 fps95.5%
Bofors RP15<<locked>>98%42,917 psi78%2507 fps95.7%
Bofors RP3<<locked>>80%44,483 psi81%2431 fps100%
Bofors RP5<<locked>>94%40,959 psi74%2470 fps95.2%
Bofors RP7<<locked>>80%39,262 psi71%2313 fps95.7%
Hodgdon H380<<locked>>80%44,802 psi81%2438 fps99.3%
Hodgdon H414<<locked>>80%39,987 psi73%2405 fps96.6%
Hodgdon H4350<<locked>>84%41,800 psi76%2395 fps95.7%
Hodgdon Hybrid 100V<<locked>>80%31,836 psi58%2211 fps98.5%
Hodgdon LEVERevolution<<locked>>80%45,948 psi83%2480 fps100%
Hodgdon Superformance<<locked>>82%38,377 psi70%2398 fps95.6%
Hodgdon TrailBoss<<locked>>80%27,021 psi49%1404 fps100%
Hodgdon VARGET<<locked>>80%46,311 psi84%2438 fps100%
IMR 4064<<locked>>80%43,308 psi79%2379 fps99.7%
IMR 4166 Enduron<<locked>>80%42,525 psi77%2349 fps97.2%
IMR 4350<<locked>>82%37,333 psi68%2297 fps95%
IMR 4451 Enduron<<locked>>80%40,727 psi74%2343 fps96.6%
IMR 4831<<locked>>80%30,545 psi55%2185 fps96.4%
Lovex S062<<locked>>80%46,528 psi84%2428 fps100%
Lovex S065<<locked>>80%38,305 psi70%2300 fps97.4%
Lovex S070<<locked>>80%36,593 psi66%2280 fps95.7%
Lovex S071<<locked>>92%32,271 psi59%2231 fps95%
Norma 203B<<locked>>80%46,659 psi85%2470 fps100%
Norma 204<<locked>>86%41,901 psi76%2421 fps95.1%
Norma MRP49.2 gr90%37,536 psi68%2428 fps95.6%
Norma URP<<locked>>80%35,012 psi64%2297 fps97.7%
Ramshot Hunter<<locked>>80%33,895 psi62%2283 fps95.5%
Ramshot Magnum<<locked>>96%41,930 psi76%2474 fps96.1%
ReloadSwiss RS 14<<locked>>80%27,572 psi50%1440 fps100%
ReloadSwiss RS 50<<locked>>80%44,962 psi82%2425 fps98.3%
ReloadSwiss RS 60<<locked>>80%41,220 psi75%2474 fps100%
ReloadSwiss RS 62<<locked>>80%34,519 psi63%2313 fps97.4%
ReloadSwiss RS 7044.6 gr80%33,794 psi61%2313 fps96.5%
ReloadSwiss RS 76<<locked>>98%37,333 psi68%2448 fps95.1%
Rottweil R 903<<locked>>80%41,916 psi76%2385 fps99.9%
Rottweil R 904<<locked>>92%45,803 psi83%2464 fps95%
Rottweil R 905<<locked>>92%42,511 psi77%2457 fps95.8%
Rottweil R 907<<locked>>80%39,262 psi71%2313 fps95.7%
Shooters World Long Rifle<<locked>>80%38,305 psi70%2300 fps97.4%
Shooters World Precision<<locked>>80%46,528 psi84%2428 fps100%
Shooters World SW4350<<locked>>80%36,593 psi66%2280 fps95.7%
SNPE Vectan SP 11<<locked>>80%42,844 psi78%2431 fps99.8%
SNPE Vectan Tubal 5000<<locked>>80%43,381 psi79%2300 fps100%
SNPE Vectan Tubal 7000<<locked>>80%37,463 psi68%2247 fps95.8%
SNPE Vectan Tubal 8000<<locked>>92%42,105 psi76%2454 fps95.6%
Somchem S355<<locked>>80%42,264 psi77%2382 fps99.9%
Somchem S365<<locked>>80%31,459 psi57%2257 fps99.4%
Somchem S385<<locked>>88%38,029 psi69%2346 fps95.3%
Unknown powder<<locked>>80%37,666 psi68%2343 fps97.8%
Vihtavuori N150<<locked>>80%36,143 psi66%2244 fps99.9%
Vihtavuori N160<<locked>>80%37,811 psi69%2323 fps98.3%
Vihtavuori N165<<locked>>96%41,234 psi75%2398 fps95.8%
Vihtavuori N550<<locked>>80%38,247 psi69%2359 fps98.3%
Vihtavuori N555<<locked>>80%27,296 psi50%2156 fps95.5%
Winchester 6.5 StaBALL<<locked>>80%35,505 psi64%2270 fps99.4%
Winchester 760<<locked>>80%39,987 psi73%2405 fps96.6%
Winchester StaBALL HD<<locked>>84%25,063 psi45%2159 fps95.9%
Winchester Supreme 780<<locked>>92%43,990 psi80%2451 fps95.8%

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 7 x 65 R Brenneke loaded with the .285 | 173gr | Prvi Partizan FMJ BT. Alliant Reloder-26 delivers the highest muzzle velocity at 2,694 fps; across all powders the maximum-charge window runs from 1,578 fps to 2,694 fps. Alliant Reloder-23 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 (380 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. The 173.0 gr projectile in 0.285" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 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 Reloder-26, Norma MRP, ReloadSwiss RS 70 rank at the top here: for 7 x 65 R Brenneke with the .285 | 173gr | Prvi Partizan FMJ BT 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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