Load data for 7 mm Exp. Rem. + .284 | 160gr | Prvi Partizan PSP BT

7 mm Exp. Rem. cartridge drawing
Prvi Partizan logo

Load Specifications

Bullet Manufacturer:Prvi Partizan
Bullet Weight:160 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.54"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:67.5 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:22"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:11.5

Load data in caliber 7 mm Exp. Rem. with .284 | 160gr | Prvi Partizan PSP BT bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Alliant Reloder-26.

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: 22"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>82%50,792 psi86%2523 fps100%
Accurate 2700<<locked>>84%52,127 psi89%2569 fps97.4%
Accurate 3100ᴾ<<locked>>100%48,486 psi83%2598 fps98.3%
Accurate 4064<<locked>>84%50,937 psi87%2566 fps100%
Accurate 4350<<locked>>92%50,865 psi87%2651 fps99.6%
ADI AR 2208<<locked>>86%51,750 psi88%2595 fps99.9%
ADI AR 2209<<locked>>98%52,199 psi89%2684 fps96.5%
Alliant Power Pro 2000-MR<<locked>>82%50,140 psi85%2697 fps99.8%
Alliant Power Pro Varmint<<locked>>98%52,170 psi89%2684 fps96.6%
Alliant Reloder- TS 15.5<<locked>>86%52,112 psi89%2618 fps100%
Alliant Reloder-15<<locked>>84%52,199 psi89%2631 fps99.9%
Alliant Reloder-16<<locked>>94%52,069 psi89%2707 fps99.9%
Alliant Reloder-17<<locked>>90%52,794 psi90%2733 fps100%
Alliant Reloder-19<<locked>>98%51,430 psi88%2674 fps96.5%
Alliant Reloder-22ᴾ<<locked>>100%48,370 psi82%2667 fps95.9%
Alliant Reloder-23ᴾ<<locked>>100%45,556 psi78%2618 fps99.9%
Alliant Reloder-25ᴾ<<locked>>100%39,987 psi68%2526 fps96.9%
Alliant Reloder-26ᴾ<<locked>>100%51,851 psi88%2792 fps99.8%
Bofors RP3<<locked>>86%52,402 psi89%2628 fps100%
Bofors RP5ᴾ<<locked>>100%48,370 psi82%2667 fps95.9%
Bofors RP7<<locked>>90%52,330 psi89%2608 fps97.6%
Hodgdon H380<<locked>>84%49,676 psi85%2589 fps99.2%
Hodgdon H414<<locked>>90%49,937 psi85%2644 fps97.8%
Hodgdon H4350<<locked>>88%50,444 psi86%2612 fps96.6%
Hodgdon Hybrid 100V<<locked>>96%52,054 psi89%2641 fps100%
Hodgdon LEVERevolution<<locked>>82%50,589 psi86%2628 fps100%
Hodgdon Superformance<<locked>>90%49,763 psi85%2674 fps97.4%
Hodgdon TrailBossᴾ<<locked>>100%36,143 psi62%1634 fps100%
Hodgdon VARGET<<locked>>82%52,025 psi89%2598 fps100%
IMR 4064<<locked>>84%51,126 psi87%2579 fps99.9%
IMR 4166 Enduron<<locked>>82%50,589 psi86%2556 fps97.8%
IMR 4350<<locked>>94%52,881 psi90%2635 fps97.8%
IMR 4451 Enduron<<locked>>88%50,981 psi87%2589 fps97.8%
IMR 4831<<locked>>94%51,590 psi88%2648 fps99.7%
IMR 4895<<locked>>82%50,488 psi86%2612 fps100%
Lovex S060<<locked>>82%52,837 psi90%2566 fps100%
Lovex S062<<locked>>84%51,242 psi87%2575 fps100%
Lovex S065<<locked>>90%50,836 psi87%2585 fps98.9%
Lovex S070<<locked>>92%51,779 psi88%2621 fps98.2%
Lovex S071ᴾ<<locked>>100%40,219 psi68%2451 fps96.4%
Norma 201<<locked>>82%52,707 psi90%2589 fps100%
Norma 202<<locked>>82%53,142 psi90%2585 fps100%
Norma 203B<<locked>>84%51,503 psi88%2621 fps100%
Norma 204<<locked>>92%49,748 psi85%2621 fps95.8%
Norma MRPᴾ<<locked>>100%51,242 psi87%2746 fps98%
Norma URP<<locked>>92%50,125 psi85%2641 fps99.5%
Ramshot Big Game<<locked>>84%51,924 psi88%2644 fps100%
Ramshot Hunter<<locked>>94%52,141 psi89%2687 fps98.8%
ReloadSwiss RS 14ᴾ<<locked>>100%36,608 psi62%1670 fps100%
ReloadSwiss RS 50<<locked>>86%53,127 psi90%2625 fps98.7%
ReloadSwiss RS 52<<locked>>82%52,823 psi90%2694 fps99.9%
ReloadSwiss RS 60<<locked>>88%52,591 psi90%2730 fps100%
ReloadSwiss RS 62<<locked>>92%50,575 psi86%2671 fps99.5%
ReloadSwiss RS 70<<locked>>92%49,516 psi84%2694 fps99.3%
Rottweil R 902<<locked>>82%49,951 psi85%2539 fps100%
Rottweil R 903<<locked>>88%52,591 psi90%2625 fps100%
Rottweil R 905<<locked>>98%50,473 psi86%2657 fps96.4%
Rottweil R 907<<locked>>90%52,330 psi89%2608 fps97.6%
Shooters World Long Rifle<<locked>>90%50,836 psi87%2585 fps98.9%
Shooters World Precision<<locked>>84%51,242 psi87%2575 fps100%
Shooters World SW4350<<locked>>92%51,779 psi88%2621 fps98.2%
SNPE Vectan SP 11<<locked>>86%50,807 psi86%2631 fps100%
SNPE Vectan SP 9<<locked>>82%52,170 psi89%2608 fps100%
SNPE Vectan Tubal 5000<<locked>>86%51,082 psi87%2487 fps100%
SNPE Vectan Tubal 7000<<locked>>90%50,256 psi86%2536 fps97.8%
SNPE Vectan Tubal 8000<<locked>>98%49,995 psi85%2654 fps96.3%
Somchem S355<<locked>>88%52,866 psi90%2625 fps100%
Somchem S365<<locked>>96%51,953 psi88%2694 fps100%
Somchem S385<<locked>>98%51,213 psi87%2641 fps97.4%
Vihtavuori N135<<locked>>82%50,067 psi85%2510 fps100%
Vihtavuori N140<<locked>>82%50,531 psi86%2523 fps100%
Vihtavuori N150<<locked>>88%50,691 psi86%2556 fps100%
Vihtavuori N160<<locked>>92%52,127 psi89%2638 fps99.7%
Vihtavuori N165ᴾ<<locked>>100%47,050 psi80%2562 fps96%
Vihtavuori N540<<locked>>84%51,793 psi88%2562 fps100%
Vihtavuori N550<<locked>>92%51,242 psi87%2638 fps99.5%
Vihtavuori N555ᴾ<<locked>>100%50,821 psi87%2690 fps99.9%
Winchester 6.5 StaBALL<<locked>>92%51,634 psi88%2612 fps100%
Winchester 760<<locked>>90%50,212 psi85%2651 fps97.9%
Winchester StaBALL HDᴾ<<locked>>100%41,060 psi70%2651 fps100%
Winchester StaBALL Match<<locked>>82%52,185 psi89%2618 fps100%
Winchester Supreme 780ᴾ<<locked>>100%51,068 psi87%2628 fps96.2%

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

Start Load - Barrel Length: 22"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>80%47,572 psi81%2477 fps100%
Accurate 2700<<locked>>80%45,977 psi78%2467 fps96%
Accurate 3100<<locked>>92%36,840 psi63%2382 fps95.2%
Accurate 4064<<locked>>80%45,020 psi77%2477 fps100%
Accurate 4350<<locked>>80%33,808 psi58%2329 fps96.1%
ADI AR 2208<<locked>>80%42,989 psi73%2448 fps99%
ADI AR 2209<<locked>>96%48,936 psi83%2628 fps95.7%
Alliant Power Pro 2000-MR<<locked>>80%46,644 psi79%2635 fps99.5%
Alliant Power Pro Varmint<<locked>>94%45,847 psi78%2572 fps95%
Alliant Reloder- TS 15.5<<locked>>80%43,250 psi74%2474 fps99.8%
Alliant Reloder-15<<locked>>80%46,209 psi79%2533 fps99.5%
Alliant Reloder-1642.5 gr80%33,417 psi57%2336 fps96.1%
Alliant Reloder-17<<locked>>80%37,550 psi64%2457 fps99%
Alliant Reloder-19<<locked>>96%48,225 psi82%2621 fps95.7%
Alliant Reloder-22<<locked>>98%45,281 psi77%2608 fps95%
Alliant Reloder-23<<locked>>86%29,327 psi50%2257 fps96%
Alliant Reloder-25<<locked>>98%37,550 psi64%2470 fps96%
Alliant Reloder-2651.6 gr88%33,678 psi57%2421 fps95.3%
Bofors RP3<<locked>>80%43,047 psi73%2477 fps99.8%
Bofors RP5<<locked>>98%45,281 psi77%2608 fps95%
Bofors RP7<<locked>>84%43,511 psi74%2454 fps95.6%
Hodgdon H380<<locked>>80%43,656 psi74%2484 fps98.3%
Hodgdon H414<<locked>>84%40,843 psi70%2477 fps95.5%
Hodgdon H4350<<locked>>84%44,164 psi75%2500 fps95%
Hodgdon Hybrid 100V<<locked>>80%30,879 psi53%2241 fps96.9%
Hodgdon LEVERevolution<<locked>>80%47,398 psi81%2575 fps100%
Hodgdon Superformance<<locked>>86%42,946 psi73%2546 fps95.6%
Hodgdon TrailBoss<<locked>>80%26,934 psi46%1457 fps100%
Hodgdon VARGET<<locked>>80%48,805 psi83%2549 fps100%
IMR 4064<<locked>>80%45,194 psi77%2480 fps99.4%
IMR 4166 Enduron<<locked>>80%47,500 psi81%2503 fps97.2%
IMR 4350<<locked>>88%44,034 psi75%2487 fps95.7%
IMR 4451 Enduron<<locked>>82%42,293 psi72%2434 fps95.8%
IMR 4831<<locked>>80%32,706 psi56%2290 fps95.8%
IMR 4895<<locked>>80%47,398 psi81%2562 fps99.8%
Lovex S060<<locked>>80%49,937 psi85%2523 fps99.9%
Lovex S062<<locked>>80%45,353 psi77%2480 fps100%
Lovex S065<<locked>>80%37,289 psi63%2336 fps95.8%
Lovex S070<<locked>>84%40,176 psi68%2415 fps95.5%
Lovex S071<<locked>>98%37,797 psi64%2405 fps95.6%
Norma 201<<locked>>80%49,443 psi84%2539 fps100%
Norma 202<<locked>>80%50,125 psi85%2543 fps100%
Norma 203B<<locked>>80%45,585 psi78%2523 fps99.7%
Norma 204<<locked>>90%46,586 psi79%2569 fps95%
Norma MRP<<locked>>94%41,553 psi71%2566 fps95.4%
Norma URP<<locked>>80%33,895 psi58%2329 fps96%
Ramshot Big Game<<locked>>80%45,397 psi77%2536 fps99.6%
Ramshot Hunter<<locked>>84%37,405 psi64%2415 fps95.3%
ReloadSwiss RS 14<<locked>>80%27,412 psi47%1493 fps100%
ReloadSwiss RS 50<<locked>>80%43,787 psi75%2467 fps96.9%
ReloadSwiss RS 52<<locked>>80%49,458 psi84%2641 fps99.8%
ReloadSwiss RS 60<<locked>>80%39,914 psi68%2516 fps100%
ReloadSwiss RS 62<<locked>>80%33,489 psi57%2343 fps95.5%
ReloadSwiss RS 7047.7 gr82%35,288 psi60%2402 fps95.5%
Rottweil R 902<<locked>>80%47,137 psi80%2493 fps100%
Rottweil R 903<<locked>>80%40,654 psi69%2428 fps99.4%
Rottweil R 905<<locked>>96%47,152 psi80%2602 fps95.6%
Rottweil R 907<<locked>>84%43,511 psi74%2454 fps95.6%
Shooters World Long Rifle<<locked>>80%37,289 psi63%2336 fps95.8%
Shooters World Precision<<locked>>80%45,353 psi77%2480 fps100%
Shooters World SW4350<<locked>>84%40,176 psi68%2415 fps95.5%
SNPE Vectan SP 11<<locked>>80%41,626 psi71%2474 fps99.1%
SNPE Vectan SP 9<<locked>>80%48,994 psi83%2559 fps99.9%
SNPE Vectan Tubal 5000<<locked>>80%42,453 psi72%2359 fps100%
SNPE Vectan Tubal 7000<<locked>>84%41,408 psi70%2382 fps95.7%
SNPE Vectan Tubal 8000<<locked>>96%46,717 psi80%2595 fps95.5%
Somchem S355<<locked>>80%41,147 psi70%2428 fps99.4%
Somchem S365<<locked>>80%30,342 psi52%2283 fps98.1%
Somchem S385<<locked>>92%42,148 psi72%2484 fps95.1%
Vihtavuori N135<<locked>>80%47,123 psi80%2467 fps100%
Vihtavuori N140<<locked>>80%47,427 psi81%2477 fps100%
Vihtavuori N150<<locked>>80%39,247 psi67%2365 fps99.8%
Vihtavuori N160<<locked>>80%35,302 psi60%2333 fps96.4%
Vihtavuori N165<<locked>>98%44,063 psi75%2510 fps95.2%
Vihtavuori N540<<locked>>80%45,672 psi78%2470 fps100%
Vihtavuori N550<<locked>>80%34,693 psi59%2329 fps96%
Vihtavuori N555<<locked>>84%29,965 psi51%2274 fps95.1%
Winchester 6.5 StaBALL<<locked>>80%34,606 psi59%2306 fps98.4%
Winchester 760<<locked>>84%41,104 psi70%2484 fps95.6%
Winchester StaBALL HD<<locked>>88%27,673 psi47%2280 fps95.5%
Winchester StaBALL Match<<locked>>80%48,675 psi83%2562 fps100%
Winchester Supreme 780<<locked>>98%47,688 psi81%2575 fps95.4%

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 82 powders for 7 mm Exp. Rem. loaded with the .284 | 160gr | Prvi Partizan PSP BT. Alliant Reloder-26 delivers the highest muzzle velocity at 2,792 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,792 fps. Accurate 3100 gives the best case fill at 100 %, and 82 of the 82 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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-16, ReloadSwiss RS 70, Alliant Reloder-26 rank at the top here: for 7 mm Exp. Rem. with the .284 | 160gr | 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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