Load data for 7 mm B.R. Rem. + .285 | 173gr | Prvi Partizan SP

7 mm B.R. Rem. 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):1.51"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:37.5 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:24"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:12.5

Load data in caliber 7 mm B.R. Rem. with .285 | 173gr | Prvi Partizan SP bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 1200-R and Winchester 748.

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: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>82%51,213 psi87%2119 fps100%
Accurate 2015<<locked>>96%52,721 psi90%2205 fps100%
Accurate 2200<<locked>>86%51,285 psi87%2238 fps97.5%
Accurate 2230<<locked>>86%51,445 psi88%2247 fps97.9%
Accurate 2460<<locked>>92%51,372 psi87%2228 fps100%
Accurate 2495ᴾ<<locked>>100%47,355 psi81%2205 fps100%
Accurate 2520<<locked>>96%51,634 psi88%2267 fps99.9%
Accurate 4064ᴾ<<locked>>100%43,976 psi75%2192 fps99.9%
Accurate LT-30<<locked>>88%51,837 psi88%2133 fps100%
Accurate LT-32<<locked>>88%52,301 psi89%2146 fps99.9%
ADI AR 2206H<<locked>>98%51,735 psi88%2267 fps98.4%
ADI AR 2207<<locked>>86%52,678 psi90%2156 fps100%
ADI AR 2208ᴾ<<locked>>100%46,470 psi79%2175 fps96.6%
ADI AR 2219<<locked>>88%50,473 psi86%2228 fps100%
ADI Benchmark 8208<<locked>>96%51,517 psi88%2234 fps99.2%
Alliant AR-Comp<<locked>>98%52,040 psi89%2260 fps100%
Alliant Power Pro 1200-R<<locked>>92%52,054 psi89%2313 fps99%
Alliant Power Pro 2000-MRᴾ<<locked>>100%50,995 psi87%2333 fps97.1%
Alliant Reloder- TS 15.5ᴾ<<locked>>100%44,251 psi75%2192 fps98%
Alliant Reloder-10x<<locked>>92%53,069 psi90%2215 fps100%
Alliant Reloder-15ᴾ<<locked>>100%48,704 psi83%2247 fps97.4%
Alliant Reloder-7<<locked>>84%50,589 psi86%2133 fps100%
Baschieri & Pellagri 106<<locked>>88%50,314 psi86%2136 fps100%
Baschieri & Pellagri 107<<locked>>98%50,952 psi87%2270 fps97.1%
Bofors RP3ᴾ<<locked>>100%43,830 psi75%2198 fps98%
Hodgdon Benchmark<<locked>>94%51,401 psi88%2192 fps99.4%
Hodgdon BL-C2<<locked>>98%52,170 psi89%2297 fps99.6%
Hodgdon CFE223<<locked>>94%51,242 psi87%2326 fps97.8%
Hodgdon H322<<locked>>92%52,170 psi89%2247 fps100%
Hodgdon H335<<locked>>90%49,647 psi85%2228 fps100%
Hodgdon H4198<<locked>>84%50,821 psi87%2133 fps100%
Hodgdon H4895<<locked>>98%51,996 psi89%2277 fps98.8%
Hodgdon LEVERevolutionᴾ<<locked>>100%49,545 psi84%2290 fps98.8%
Hodgdon TrailBossᴾ<<locked>>100%33,489 psi57%1299 fps100%
Hodgdon VARGET<<locked>>98%50,589 psi86%2238 fps98.5%
IMR 3031ᴾ<<locked>>100%53,113 psi90%2306 fps100%
IMR 4064ᴾ<<locked>>100%48,805 psi83%2198 fps97.4%
IMR 4198<<locked>>90%51,663 psi88%2156 fps100%
IMR 4895ᴾ<<locked>>100%49,792 psi85%2277 fps98.2%
IMR 8208 XBR<<locked>>96%51,517 psi88%2234 fps99.2%
Lovex D073.4<<locked>>86%51,953 psi88%2234 fps99.9%
Lovex D073.5<<locked>>92%51,329 psi87%2231 fps99.6%
Lovex D073.6ᴾ<<locked>>100%52,359 psi89%2287 fps99.9%
Lovex S053<<locked>>82%52,997 psi90%2070 fps100%
Lovex S060<<locked>>98%53,142 psi90%2211 fps98.4%
Lovex S062ᴾ<<locked>>100%47,732 psi81%2205 fps98.8%
Norma 200<<locked>>86%50,488 psi86%2165 fps100%
Norma 201<<locked>>98%50,546 psi86%2224 fps99.1%
Norma 202<<locked>>98%50,241 psi86%2234 fps100%
Norma 203Bᴾ<<locked>>100%47,747 psi81%2238 fps97.8%
Ramshot Big Gameᴾ<<locked>>100%47,848 psi81%2251 fps97.4%
Ramshot TAC<<locked>>96%52,620 psi90%2244 fps95.8%
Ramshot Wild Boar<<locked>>96%50,517 psi86%2260 fps98.1%
Ramshot X-Terminator<<locked>>92%50,053 psi85%2198 fps97.8%
ReloadSwiss RS 14ᴾ<<locked>>100%33,156 psi56%1325 fps100%
ReloadSwiss RS 40<<locked>>92%51,895 psi88%2234 fps99.8%
ReloadSwiss RS 52ᴾ<<locked>>100%50,908 psi87%2333 fps97.8%
ReloadSwiss RS 60ᴾ<<locked>>100%42,569 psi72%2228 fps98.9%
Rottweil R 901<<locked>>96%51,605 psi88%2218 fps100%
Rottweil R 902ᴾ<<locked>>100%50,386 psi86%2215 fps99.1%
Rottweil R 903ᴾ<<locked>>100%40,335 psi69%2136 fps97%
Shooters World AR Plus<<locked>>86%51,953 psi88%2234 fps99.9%
Shooters World Match Rifleᴾ<<locked>>100%52,359 psi89%2287 fps99.9%
Shooters World Precisionᴾ<<locked>>100%47,732 psi81%2205 fps98.8%
Shooters World Tactical Rifle<<locked>>90%52,562 psi89%2211 fps99%
SNPE Vectan BA6 1/2<<locked>>84%51,155 psi87%1923 fps100%
SNPE Vectan SP 10<<locked>>88%50,836 psi87%2234 fps100%
SNPE Vectan SP 11ᴾ<<locked>>100%43,366 psi74%2192 fps96.5%
SNPE Vectan SP 3<<locked>>90%50,908 psi87%2188 fps100%
SNPE Vectan SP 7<<locked>>98%52,895 psi90%2254 fps96.5%
SNPE Vectan SP 9<<locked>>98%49,879 psi85%2241 fps98%
SNPE Vectan Tubal 3000<<locked>>96%50,589 psi86%2156 fps100%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%46,137 psi79%2113 fps100%
Somchem S321<<locked>>94%52,489 psi89%2270 fps99.4%
Somchem S335<<locked>>98%52,156 psi89%2192 fps100%
Somchem S341<<locked>>98%52,098 psi89%2254 fps98.2%
Somchem S355ᴾ<<locked>>100%41,959 psi71%2146 fps97.1%
Vihtavuori N120<<locked>>86%52,707 psi90%2113 fps100%
Vihtavuori N130<<locked>>92%50,647 psi86%2142 fps100%
Vihtavuori N133<<locked>>98%52,750 psi90%2182 fps100%
Vihtavuori N135ᴾ<<locked>>100%48,428 psi82%2201 fps100%
Vihtavuori N140ᴾ<<locked>>100%50,415 psi86%2215 fps100%
Vihtavuori N150ᴾ<<locked>>100%40,350 psi69%2100 fps97.9%
Vihtavuori N530<<locked>>96%52,069 psi89%2234 fps99.2%
Vihtavuori N540ᴾ<<locked>>100%48,979 psi83%2218 fps99.9%
Winchester 748<<locked>>96%49,980 psi85%2270 fps99.6%
Winchester StaBALL Matchᴾ<<locked>>100%52,185 psi89%2287 fps98.8%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%48,008 psi82%2083 fps100%
Accurate 2015<<locked>>80%32,416 psi55%1919 fps99.6%
Accurate 2200<<locked>>80%42,061 psi72%2103 fps95.5%
Accurate 2230<<locked>>80%41,568 psi71%2106 fps95.8%
Accurate 2460<<locked>>80%34,345 psi58%1982 fps98.1%
Accurate 2495<<locked>>80%24,831 psi42%1834 fps98.3%
Accurate 2520<<locked>>80%29,907 psi51%1932 fps96.4%
Accurate 4064<<locked>>80%23,583 psi40%1811 fps95%
Accurate LT-30<<locked>>80%40,944 psi70%1991 fps99.8%
Accurate LT-32<<locked>>80%41,292 psi70%1998 fps98.9%
ADI AR 2206H<<locked>>88%38,000 psi65%2064 fps95.4%
ADI AR 2207<<locked>>80%44,077 psi75%2057 fps100%
ADI AR 2208<<locked>>96%41,365 psi70%2096 fps95.4%
ADI AR 2219<<locked>>80%38,653 psi66%2064 fps99.6%
ADI Benchmark 8208<<locked>>82%33,315 psi57%1955 fps95.3%
Alliant AR-Comp<<locked>>80%29,515 psi50%1936 fps100%
Alliant Power Pro 1200-R23.2 gr80%35,578 psi61%2057 fps95.6%
Alliant Power Pro 2000-MR<<locked>>96%44,860 psi76%2241 fps95.6%
Alliant Reloder- TS 15.5<<locked>>92%34,563 psi59%2031 fps95.5%
Alliant Reloder-10x<<locked>>80%37,217 psi63%2005 fps100%
Alliant Reloder-15<<locked>>94%40,132 psi68%2119 fps95.4%
Alliant Reloder-7<<locked>>80%44,933 psi76%2064 fps100%
Baschieri & Pellagri 106<<locked>>80%39,073 psi67%1988 fps99.8%
Baschieri & Pellagri 107<<locked>>92%42,279 psi72%2146 fps95.1%
Bofors RP3<<locked>>92%33,373 psi57%2024 fps95.3%
Hodgdon Benchmark<<locked>>80%33,837 psi58%1923 fps96.2%
Hodgdon BL-C2<<locked>>82%30,661 psi52%1962 fps95.2%
Hodgdon CFE22327.8 gr88%41,887 psi71%2188 fps95.7%
Hodgdon H322<<locked>>80%35,331 psi60%2008 fps99.2%
Hodgdon H335<<locked>>80%35,563 psi61%2021 fps98.5%
Hodgdon H4198<<locked>>80%45,121 psi77%2060 fps99.9%
Hodgdon H4895<<locked>>86%35,781 psi61%2031 fps95.4%
Hodgdon LEVERevolution<<locked>>88%34,026 psi58%2034 fps95.1%
Hodgdon TrailBoss<<locked>>80%24,598 psi42%1155 fps100%
Hodgdon VARGET<<locked>>88%37,173 psi63%2037 fps95.7%
IMR 3031<<locked>>80%28,282 psi48%1919 fps98.3%
IMR 4064<<locked>>94%40,596 psi69%2080 fps95.5%
IMR 4198<<locked>>80%38,638 psi66%1985 fps100%
IMR 4895<<locked>>90%36,376 psi62%2070 fps95.1%
IMR 8208 XBR<<locked>>82%33,315 psi57%1955 fps95.3%
Lovex D073.4<<locked>>80%41,989 psi71%2103 fps99%
Lovex D073.5<<locked>>80%33,968 psi58%1975 fps96.8%
Lovex D073.6<<locked>>80%26,963 psi46%1880 fps95.1%
Lovex S053<<locked>>80%50,198 psi85%2041 fps100%
Lovex S060<<locked>>86%37,275 psi63%1982 fps95%
Lovex S062<<locked>>88%33,112 psi56%1972 fps95.5%
Norma 200<<locked>>80%41,989 psi71%2057 fps100%
Norma 201<<locked>>84%32,866 psi56%1949 fps95.4%
Norma 202<<locked>>80%28,732 psi49%1886 fps96.6%
Norma 203B<<locked>>92%36,854 psi63%2070 fps95.2%
Ramshot Big Game<<locked>>94%39,682 psi68%2123 fps95.4%
Ramshot TAC<<locked>>94%48,936 psi83%2195 fps95.1%
Ramshot Wild Boar<<locked>>88%38,812 psi66%2087 fps95.5%
Ramshot X-Terminator<<locked>>84%39,131 psi67%2037 fps95.4%
ReloadSwiss RS 14<<locked>>80%24,845 psi42%1188 fps100%
ReloadSwiss RS 40<<locked>>80%35,259 psi60%1991 fps97.5%
ReloadSwiss RS 52<<locked>>94%41,785 psi71%2198 fps95.8%
ReloadSwiss RS 60<<locked>>92%32,837 psi56%2041 fps95.9%
Rottweil R 901<<locked>>80%32,358 psi55%1923 fps97.5%
Rottweil R 902<<locked>>86%33,127 psi56%1949 fps95.4%
Rottweil R 903<<locked>>96%35,650 psi61%2060 fps95.7%
Shooters World AR Plus<<locked>>80%41,989 psi71%2103 fps99%
Shooters World Match Rifle<<locked>>80%26,963 psi46%1880 fps95.1%
Shooters World Precision<<locked>>88%33,112 psi56%1972 fps95.5%
Shooters World Tactical Rifle<<locked>>80%37,492 psi64%1998 fps96.2%
SNPE Vectan BA6 1/2<<locked>>80%45,890 psi78%1867 fps100%
SNPE Vectan SP 10<<locked>>80%39,015 psi66%2067 fps99.1%
SNPE Vectan SP 11<<locked>>96%38,334 psi65%2106 fps95%
SNPE Vectan SP 3<<locked>>80%37,579 psi64%2008 fps99.8%
SNPE Vectan SP 7<<locked>>94%46,354 psi79%2172 fps95.1%
SNPE Vectan SP 9<<locked>>90%38,783 psi66%2077 fps95.6%
SNPE Vectan Tubal 3000<<locked>>80%31,038 psi53%1860 fps97.2%
SNPE Vectan Tubal 5000<<locked>>80%25,121 psi43%1752 fps96.1%
Somchem S321<<locked>>80%32,866 psi56%1972 fps95.6%
Somchem S335<<locked>>80%30,458 psi52%1867 fps97.9%
Somchem S341<<locked>>90%39,900 psi68%2083 fps95.7%
Somchem S355<<locked>>94%34,896 psi59%2028 fps95.1%
Vihtavuori N120<<locked>>80%44,179 psi75%2018 fps100%
Vihtavuori N130<<locked>>80%35,375 psi60%1936 fps100%
Vihtavuori N133<<locked>>80%30,792 psi52%1870 fps99.2%
Vihtavuori N135<<locked>>80%25,904 psi44%1837 fps98.4%
Vihtavuori N140<<locked>>80%27,209 psi46%1837 fps96.3%
Vihtavuori N150<<locked>>92%31,386 psi53%1942 fps95.3%
Vihtavuori N530<<locked>>82%33,127 psi56%1952 fps95.4%
Vihtavuori N540<<locked>>80%26,150 psi45%1827 fps95.2%
Winchester 74824.8 gr82%31,604 psi54%1972 fps95.8%
Winchester StaBALL Match<<locked>>88%35,607 psi61%2041 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 103 powders for 7 mm B.R. Rem. loaded with the .285 | 173gr | Prvi Partizan SP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,333 fps; across all powders the maximum-charge window runs from 1,299 fps to 2,333 fps. Accurate 2495 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 173.0 gr projectile in 0.285" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 2700, Accurate 4064 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. Hodgdon CFE223, Alliant Power Pro 1200-R, Winchester 748 rank at the top here: for 7 mm B.R. Rem. with the .285 | 173gr | Prvi Partizan SP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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