Load data for 7 mm Rem. Mag. + .284 | 174gr | Prvi Partizan PSP BT

7 mm Rem. Mag. cartridge drawing
Prvi Partizan logo

Load Specifications

Bullet Manufacturer:Prvi Partizan
Bullet Weight:174 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.5"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:82 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:11.0

Load data in caliber 7 mm Rem. Mag. with .284 | 174gr | Prvi Partizan PSP BT bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 and Norma MRP.

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 3100<<locked>>94%54,868 psi88%2720 fps100%
Accurate 4350<<locked>>86%56,202 psi90%2746 fps100%
Accurate MAGPRO<<locked>>92%53,301 psi85%2812 fps97.9%
ADI AR 2209<<locked>>90%53,388 psi86%2753 fps99.4%
ADI AR 2213<<locked>>94%54,752 psi88%2812 fps98.9%
ADI AR 2217ᴾ<<locked>>100%49,052 psi79%2713 fps98.3%
ADI AR 2225ᴾ<<locked>>100%43,743 psi70%2680 fps99.6%
Alliant Reloder-16<<locked>>86%53,519 psi86%2749 fps100%
Alliant Reloder-17<<locked>>82%54,360 psi87%2759 fps100%
Alliant Reloder-19<<locked>>92%56,347 psi90%2792 fps99.7%
Alliant Reloder-22<<locked>>94%54,752 psi88%2808 fps99.6%
Alliant Reloder-23<<locked>>96%55,796 psi89%2776 fps100%
Alliant Reloder-25ᴾ<<locked>>100%54,969 psi88%2838 fps100%
Alliant Reloder-26<<locked>>92%56,420 psi90%2867 fps100%
Baschieri & Pellagri 109<<locked>>96%56,420 psi90%2772 fps96.7%
Bofors RP15<<locked>>96%53,679 psi86%2792 fps99.5%
Bofors RP30ᴾ<<locked>>100%51,111 psi82%2782 fps98.9%
Bofors RP5<<locked>>94%54,752 psi88%2808 fps99.6%
Bofors RP7<<locked>>84%55,201 psi89%2700 fps99.9%
Hodgdon H1000ᴾ<<locked>>100%53,896 psi86%2799 fps99.4%
Hodgdon H414<<locked>>84%54,389 psi87%2749 fps100%
Hodgdon H4350<<locked>>82%53,548 psi86%2707 fps99.5%
Hodgdon H4831<<locked>>92%54,578 psi88%2753 fps98.4%
Hodgdon H4831 SC<<locked>>92%53,548 psi86%2736 fps98.2%
Hodgdon Hybrid 100V<<locked>>88%53,983 psi87%2677 fps100%
Hodgdon Retumboᴾ<<locked>>100%54,099 psi87%2910 fps100%
Hodgdon Superformance<<locked>>84%54,462 psi87%2782 fps99.9%
Hodgdon TrailBossᴾ<<locked>>100%37,130 psi60%1699 fps100%
IMR 4350<<locked>>86%53,171 psi85%2684 fps99.8%
IMR 4451 Enduron<<locked>>84%56,434 psi90%2717 fps100%
IMR 4831<<locked>>86%53,185 psi85%2690 fps100%
IMR 4955 Enduron<<locked>>92%55,724 psi89%2736 fps98.6%
IMR 7828 SSC<<locked>>96%56,260 psi90%2848 fps99.2%
Lovex S065<<locked>>84%53,838 psi86%2671 fps100%
Lovex S070<<locked>>86%55,303 psi89%2713 fps100%
Lovex S071ᴾ<<locked>>100%56,014 psi90%2736 fps100%
Norma 204<<locked>>86%53,911 psi86%2736 fps99.4%
Norma 217ᴾ<<locked>>100%39,305 psi63%2608 fps98.2%
Norma MRP<<locked>>92%54,418 psi87%2828 fps100%
Norma URP<<locked>>86%54,694 psi88%2733 fps100%
Ramshot Grand<<locked>>94%53,156 psi85%2808 fps99.1%
Ramshot Hunter<<locked>>86%53,490 psi86%2736 fps100%
Ramshot Magnum<<locked>>98%55,259 psi89%2802 fps99.9%
ReloadSwiss RS 14ᴾ<<locked>>100%37,884 psi61%1739 fps100%
ReloadSwiss RS 62<<locked>>86%56,289 psi90%2772 fps100%
ReloadSwiss RS 70<<locked>>86%54,505 psi87%2799 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%54,636 psi88%2907 fps100%
ReloadSwiss RS 80ᴾ<<locked>>100%49,501 psi79%2795 fps97.4%
Rottweil R 904<<locked>>90%54,737 psi88%2726 fps98.9%
Rottweil R 905<<locked>>92%56,072 psi90%2785 fps99.7%
Rottweil R 907<<locked>>84%55,201 psi89%2700 fps99.9%
Shooters World Long Rifle<<locked>>84%53,838 psi86%2671 fps100%
Shooters World SW4350<<locked>>86%55,303 psi89%2713 fps100%
SNPE Vectan Tubal 5000<<locked>>82%56,275 psi90%2569 fps100%
SNPE Vectan Tubal 7000<<locked>>84%52,852 psi85%2625 fps99.9%
SNPE Vectan Tubal 8000<<locked>>92%55,637 psi89%2782 fps99.7%
Somchem S355<<locked>>82%56,188 psi90%2690 fps100%
Somchem S361<<locked>>90%55,999 psi90%2717 fps98.5%
Somchem S365<<locked>>88%55,230 psi89%2736 fps100%
Somchem S385<<locked>>90%53,084 psi85%2707 fps99.8%
Vihtavuori N150<<locked>>82%53,882 psi86%2615 fps100%
Vihtavuori N160<<locked>>86%56,391 psi90%2723 fps100%
Vihtavuori N165<<locked>>96%55,927 psi90%2740 fps99.8%
Vihtavuori N550<<locked>>86%55,680 psi89%2730 fps100%
Vihtavuori N555<<locked>>92%54,491 psi87%2753 fps100%
Vihtavuori N560<<locked>>92%54,273 psi87%2822 fps98.6%
Vihtavuori N565<<locked>>98%53,969 psi87%2805 fps98.7%
Vihtavuori N568ᴾ<<locked>>100%50,749 psi81%2802 fps97.1%
Winchester 6.5 StaBALL<<locked>>86%55,854 psi90%2684 fps100%
Winchester 760<<locked>>84%54,389 psi87%2749 fps100%
Winchester StaBALL HD<<locked>>96%53,316 psi85%2858 fps100%
Winchester Supreme 780<<locked>>94%56,362 psi90%2753 fps99.6%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>80%34,301 psi55%2356 fps97.8%
Accurate 4350<<locked>>80%45,934 psi74%2592 fps100%
Accurate MAGPRO<<locked>>86%43,279 psi69%2631 fps95.5%
ADI AR 2209<<locked>>80%38,261 psi61%2470 fps96.4%
ADI AR 2213<<locked>>84%39,073 psi63%2520 fps95.2%
ADI AR 2217<<locked>>94%40,161 psi64%2543 fps95.9%
ADI AR 2225<<locked>>90%31,633 psi51%2388 fps95.7%
Alliant Reloder-16<<locked>>80%43,990 psi71%2595 fps100%
Alliant Reloder-17<<locked>>80%50,691 psi81%2707 fps100%
Alliant Reloder-19<<locked>>80%38,319 psi61%2470 fps96.5%
Alliant Reloder-22<<locked>>80%34,171 psi55%2411 fps95%
Alliant Reloder-23<<locked>>80%33,011 psi53%2382 fps99.8%
Alliant Reloder-25<<locked>>80%28,674 psi46%2293 fps96.2%
Alliant Reloder-26<<locked>>80%35,897 psi58%2513 fps99.3%
Baschieri & Pellagri 109<<locked>>92%49,966 psi80%2664 fps95.2%
Bofors RP15<<locked>>84%36,405 psi58%2464 fps95.8%
Bofors RP30<<locked>>90%36,419 psi58%2500 fps95.1%
Bofors RP5<<locked>>80%34,171 psi55%2411 fps95%
Bofors RP7<<locked>>80%48,559 psi78%2592 fps99.4%
Hodgdon H1000<<locked>>90%38,464 psi62%2507 fps95.9%
Hodgdon H414<<locked>>80%47,543 psi76%2641 fps99.6%
Hodgdon H4350<<locked>>80%50,111 psi80%2654 fps99.2%
Hodgdon H4831<<locked>>84%41,771 psi67%2526 fps95.5%
Hodgdon H4831 SC<<locked>>84%40,973 psi66%2510 fps95.2%
Hodgdon Hybrid 100V<<locked>>80%41,611 psi67%2487 fps100%
Hodgdon Retumbo<<locked>>86%34,142 psi55%2487 fps95.5%
Hodgdon Superformance<<locked>>80%46,949 psi75%2664 fps99.4%
Hodgdon TrailBoss<<locked>>80%27,818 psi45%1516 fps100%
IMR 4350<<locked>>80%44,034 psi71%2530 fps98.7%
IMR 4451 Enduron<<locked>>80%50,024 psi80%2618 fps99.7%
IMR 4831<<locked>>80%43,801 psi70%2543 fps100%
IMR 4955 Enduron<<locked>>82%40,872 psi66%2474 fps95.4%
IMR 7828 SSC<<locked>>86%40,234 psi65%2556 fps95.7%
Lovex S065<<locked>>80%47,659 psi76%2572 fps99.9%
Lovex S070<<locked>>80%46,035 psi74%2562 fps99.4%
Lovex S071<<locked>>80%29,602 psi47%2241 fps96%
Norma 204<<locked>>80%44,135 psi71%2569 fps97.8%
Norma 217<<locked>>94%32,198 psi52%2434 fps95.4%
Norma MRP55.8 gr80%35,795 psi57%2480 fps97.2%
Norma URP<<locked>>80%45,208 psi72%2582 fps100%
Ramshot Grand<<locked>>84%37,275 psi60%2503 fps95%
Ramshot Hunter<<locked>>80%43,976 psi71%2579 fps99.6%
Ramshot Magnum<<locked>>84%33,069 psi53%2388 fps95.5%
ReloadSwiss RS 14<<locked>>80%28,558 psi46%1555 fps100%
ReloadSwiss RS 62<<locked>>80%45,890 psi74%2615 fps100%
ReloadSwiss RS 70<<locked>>80%43,990 psi71%2631 fps100%
ReloadSwiss RS 76<<locked>>84%30,951 psi50%2395 fps95.1%
ReloadSwiss RS 80<<locked>>96%42,670 psi68%2667 fps95.5%
Rottweil R 904<<locked>>80%39,769 psi64%2457 fps95.7%
Rottweil R 905<<locked>>80%37,666 psi60%2454 fps96.4%
Rottweil R 907<<locked>>80%48,559 psi78%2592 fps99.4%
Shooters World Long Rifle<<locked>>80%47,659 psi76%2572 fps99.9%
Shooters World SW4350<<locked>>80%46,035 psi74%2562 fps99.4%
SNPE Vectan Tubal 5000<<locked>>80%52,866 psi85%2523 fps100%
SNPE Vectan Tubal 7000<<locked>>80%46,441 psi74%2520 fps99.4%
SNPE Vectan Tubal 8000<<locked>>80%37,333 psi60%2451 fps96.3%
Somchem S355<<locked>>80%52,823 psi85%2641 fps100%
Somchem S361<<locked>>82%43,033 psi69%2500 fps95.8%
Somchem S365<<locked>>80%42,032 psi67%2536 fps100%
Somchem S385<<locked>>80%38,276 psi61%2441 fps97.4%
Vihtavuori N150<<locked>>80%50,618 psi81%2572 fps100%
Vihtavuori N160<<locked>>80%46,441 psi74%2572 fps100%
Vihtavuori N165<<locked>>80%33,083 psi53%2320 fps95.2%
Vihtavuori N550<<locked>>80%45,890 psi74%2579 fps100%
Vihtavuori N555<<locked>>80%37,028 psi59%2454 fps99.7%
Vihtavuori N56058.5 gr84%41,176 psi66%2585 fps95.5%
Vihtavuori N565<<locked>>88%38,653 psi62%2520 fps95%
Vihtavuori N568<<locked>>96%44,150 psi71%2680 fps95.3%
Winchester 6.5 StaBALL<<locked>>80%45,513 psi73%2536 fps100%
Winchester 760<<locked>>80%47,761 psi77%2644 fps99.6%
Winchester StaBALL HD55.2 gr80%29,283 psi47%2402 fps99.9%
Winchester Supreme 780<<locked>>80%34,983 psi56%2372 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 72 powders for 7 mm Rem. Mag. loaded with the .284 | 174gr | Prvi Partizan PSP BT. Hodgdon Retumbo delivers the highest muzzle velocity at 2,910 fps; across all powders the maximum-charge window runs from 1,699 fps to 2,910 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 174.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Winchester StaBALL HD, Vihtavuori N560, Norma MRP rank at the top here: for 7 mm Rem. Mag. with the .284 | 174gr | Prvi Partizan PSP 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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