Load data for 7 mm Rem. Mag. + .285 | 139gr | Prvi Partizan SP

7 mm Rem. Mag. cartridge drawing
Prvi Partizan logo

Load Specifications

Bullet Manufacturer:Prvi Partizan
Bullet Weight:139 gr
Bullet Diameter:0.285"
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:1:16.0

Load data in caliber 7 mm Rem. Mag. with .285 | 139gr | Prvi Partizan SP bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, 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 2700<<locked>>84%54,969 psi88%2949 fps98.9%
Accurate 3100<<locked>>96%52,968 psi85%2992 fps99.6%
Accurate 4350<<locked>>88%54,563 psi87%3041 fps100%
ADI AR 2208<<locked>>84%56,304 psi90%3009 fps100%
ADI AR 2209<<locked>>94%55,477 psi89%3087 fps98.4%
ADI AR 2213<<locked>>96%53,040 psi85%3077 fps96.8%
ADI AR 2225ᴾ<<locked>>100%39,407 psi63%2838 fps96.3%
Alliant Reloder- TS 15.5<<locked>>82%54,056 psi87%2982 fps100%
Alliant Reloder-16<<locked>>90%55,405 psi89%3100 fps100%
Alliant Reloder-17<<locked>>84%52,837 psi85%3061 fps100%
Alliant Reloder-19<<locked>>94%54,810 psi88%3071 fps98.3%
Alliant Reloder-22<<locked>>98%56,376 psi90%3140 fps98.7%
Alliant Reloder-23<<locked>>98%53,592 psi86%3064 fps100%
Alliant Reloder-25ᴾ<<locked>>100%49,516 psi79%3051 fps99.8%
Alliant Reloder-26<<locked>>94%53,635 psi86%3146 fps100%
Bofors RP15ᴾ<<locked>>100%55,259 psi89%3120 fps98.4%
Bofors RP3<<locked>>82%54,955 psi88%2999 fps100%
Bofors RP5<<locked>>98%56,376 psi90%3140 fps98.7%
Bofors RP7<<locked>>86%54,128 psi87%2986 fps98.9%
Hodgdon H380<<locked>>82%55,216 psi89%3015 fps100%
Hodgdon H414<<locked>>84%53,882 psi86%3048 fps99.2%
Hodgdon H4350<<locked>>88%54,288 psi87%3025 fps98.4%
Hodgdon H4831ᴾ<<locked>>100%55,956 psi90%3064 fps96.8%
Hodgdon H4831 SC<<locked>>96%55,680 psi89%3061 fps96.7%
Hodgdon Hybrid 100V<<locked>>92%55,608 psi89%3018 fps100%
Hodgdon Retumboᴾ<<locked>>100%48,501 psi78%3097 fps98.1%
Hodgdon Superformance<<locked>>86%52,924 psi85%3061 fps99%
Hodgdon TrailBossᴾ<<locked>>100%36,811 psi59%1919 fps100%
Hodgdon VARGET<<locked>>82%55,811 psi89%2999 fps100%
IMR 4064<<locked>>84%55,245 psi89%2982 fps100%
IMR 4166 Enduron<<locked>>84%53,940 psi86%2963 fps99.2%
IMR 4350<<locked>>90%55,448 psi89%3025 fps99.1%
IMR 4451 Enduron<<locked>>86%55,637 psi89%3012 fps99.3%
IMR 4831<<locked>>94%56,159 psi90%3051 fps100%
IMR 4955 Enduron<<locked>>94%54,694 psi88%3012 fps96.7%
IMR 7828 SSC<<locked>>96%54,839 psi88%3123 fps97.3%
Lovex S062<<locked>>82%56,289 psi90%2986 fps100%
Lovex S065<<locked>>88%55,999 psi90%3012 fps99.9%
Lovex S070<<locked>>88%54,085 psi87%3002 fps99.3%
Lovex S071ᴾ<<locked>>100%50,560 psi81%2953 fps99.4%
Norma 204<<locked>>88%52,736 psi85%3015 fps97.8%
Norma MRP<<locked>>96%56,188 psi90%3166 fps99.5%
Norma URP<<locked>>88%53,185 psi85%3022 fps100%
Ramshot Grand<<locked>>94%54,491 psi87%3127 fps97.6%
Ramshot Hunter<<locked>>90%55,695 psi89%3081 fps99.8%
Ramshot Magnum<<locked>>98%55,376 psi89%3104 fps99.1%
ReloadSwiss RS 14ᴾ<<locked>>100%37,420 psi60%1962 fps100%
ReloadSwiss RS 50<<locked>>82%55,013 psi88%2999 fps99.6%
ReloadSwiss RS 60<<locked>>84%56,086 psi90%3110 fps100%
ReloadSwiss RS 62<<locked>>88%54,404 psi87%3061 fps100%
ReloadSwiss RS 70<<locked>>88%52,924 psi85%3091 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%48,863 psi78%3094 fps99%
Rottweil R 903<<locked>>84%55,288 psi89%2999 fps100%
Rottweil R 904<<locked>>92%53,490 psi86%2999 fps97%
Rottweil R 905<<locked>>94%54,215 psi87%3058 fps98.3%
Rottweil R 907<<locked>>86%54,128 psi87%2986 fps98.9%
Shooters World Long Rifle<<locked>>88%55,999 psi90%3012 fps99.9%
Shooters World Precision<<locked>>82%56,289 psi90%2986 fps100%
Shooters World SW4350<<locked>>88%54,085 psi87%3002 fps99.3%
SNPE Vectan SP 11<<locked>>82%53,098 psi85%2999 fps100%
SNPE Vectan Tubal 5000<<locked>>84%55,492 psi89%2874 fps100%
SNPE Vectan Tubal 7000<<locked>>88%55,448 psi89%2959 fps99.4%
SNPE Vectan Tubal 8000<<locked>>94%53,766 psi86%3054 fps98.2%
Somchem S355<<locked>>84%54,955 psi88%2992 fps100%
Somchem S361<<locked>>92%54,926 psi88%2986 fps96.5%
Somchem S365<<locked>>90%53,040 psi85%3028 fps100%
Somchem S385<<locked>>94%54,926 psi88%3035 fps99%
Unknown powder<<locked>>86%53,621 psi86%3025 fps99.9%
Vihtavuori N150<<locked>>88%53,345 psi86%2927 fps100%
Vihtavuori N160<<locked>>86%53,766 psi86%2992 fps100%
Vihtavuori N165ᴾ<<locked>>100%56,014 psi90%3038 fps98.9%
Vihtavuori N550<<locked>>86%54,418 psi87%3041 fps100%
Vihtavuori N555<<locked>>96%55,898 psi90%3091 fps100%
Vihtavuori N560<<locked>>96%52,910 psi85%3100 fps96.4%
Vihtavuori N565ᴾ<<locked>>100%51,764 psi83%3054 fps96.4%
Winchester 6.5 StaBALL<<locked>>88%54,578 psi88%2976 fps100%
Winchester 760<<locked>>84%53,882 psi86%3048 fps99.2%
Winchester StaBALL HDᴾ<<locked>>100%53,766 psi86%3192 fps100%
Winchester Supreme 780<<locked>>92%52,678 psi84%2992 fps97.9%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2700<<locked>>80%48,037 psi77%2828 fps97.7%
Accurate 3100<<locked>>84%35,128 psi56%2631 fps95.8%
Accurate 4350<<locked>>80%41,408 psi66%2795 fps99%
ADI AR 2208<<locked>>80%49,763 psi80%2900 fps100%
ADI AR 2209<<locked>>86%42,453 psi68%2838 fps95.3%
ADI AR 2213<<locked>>92%46,369 psi74%2946 fps95%
ADI AR 2225<<locked>>98%36,840 psi59%2772 fps95.2%
Alliant Reloder- TS 15.5<<locked>>80%50,792 psi81%2930 fps100%
Alliant Reloder-16<<locked>>80%39,856 psi64%2805 fps99.1%
Alliant Reloder-17<<locked>>80%45,847 psi74%2940 fps100%
Alliant Reloder-19<<locked>>86%42,438 psi68%2831 fps95.4%
Alliant Reloder-22<<locked>>90%43,120 psi69%2890 fps95.8%
Alliant Reloder-23<<locked>>80%29,559 psi47%2549 fps97.3%
Alliant Reloder-25<<locked>>88%33,562 psi54%2680 fps95.8%
Alliant Reloder-2662.2 gr80%31,908 psi51%2667 fps95.8%
Bofors RP15<<locked>>92%42,540 psi68%2871 fps95.4%
Bofors RP3<<locked>>80%51,576 psi83%2943 fps100%
Bofors RP5<<locked>>90%43,120 psi69%2890 fps95.8%
Bofors RP7<<locked>>80%44,947 psi72%2812 fps97.2%
Hodgdon H380<<locked>>80%51,634 psi83%2956 fps99.9%
Hodgdon H414<<locked>>80%47,065 psi75%2923 fps98.2%
Hodgdon H4350<<locked>>80%42,293 psi68%2789 fps95.7%
Hodgdon H4831<<locked>>96%49,110 psi79%2943 fps95.1%
Hodgdon H4831 SC<<locked>>92%48,675 psi78%2936 fps95%
Hodgdon Hybrid 100V<<locked>>80%37,449 psi60%2690 fps99.4%
Hodgdon Retumbo<<locked>>94%39,740 psi64%2887 fps95%
Hodgdon Superformance<<locked>>80%42,322 psi68%2858 fps96.7%
Hodgdon TrailBoss<<locked>>80%27,485 psi44%1716 fps100%
Hodgdon VARGET<<locked>>80%52,431 psi84%2943 fps100%
IMR 4064<<locked>>80%48,950 psi78%2877 fps100%
IMR 4166 Enduron<<locked>>80%47,921 psi77%2851 fps98.3%
IMR 4350<<locked>>80%40,379 psi65%2733 fps95.9%
IMR 4451 Enduron<<locked>>80%46,151 psi74%2838 fps97.9%
IMR 4831<<locked>>80%36,013 psi58%2661 fps97.8%
IMR 4955 Enduron<<locked>>90%48,167 psi77%2890 fps95.1%
IMR 7828 SSC<<locked>>92%47,659 psi76%2986 fps95.5%
Lovex S062<<locked>>80%52,910 psi85%2933 fps100%
Lovex S065<<locked>>80%43,845 psi70%2792 fps98.5%
Lovex S070<<locked>>80%42,061 psi67%2769 fps97.2%
Lovex S071<<locked>>88%34,156 psi55%2608 fps95.4%
Norma 204<<locked>>82%42,917 psi69%2825 fps95.3%
Norma MRP63.4 gr84%36,825 psi59%2769 fps95%
Norma URP<<locked>>80%40,930 psi66%2789 fps98.9%
Ramshot Grand<<locked>>90%46,891 psi75%2979 fps95.7%
Ramshot Hunter<<locked>>80%39,740 psi64%2776 fps97.2%
Ramshot Magnum<<locked>>90%40,698 psi65%2822 fps95.8%
ReloadSwiss RS 14<<locked>>80%28,079 psi45%1759 fps100%
ReloadSwiss RS 50<<locked>>80%51,285 psi82%2936 fps99.2%
ReloadSwiss RS 60<<locked>>80%48,660 psi78%2995 fps100%
ReloadSwiss RS 62<<locked>>80%41,292 psi66%2815 fps98.8%
ReloadSwiss RS 70<<locked>>80%39,784 psi64%2825 fps98.3%
ReloadSwiss RS 76<<locked>>94%39,320 psi63%2871 fps96.2%
Rottweil R 903<<locked>>80%48,457 psi78%2887 fps100%
Rottweil R 904<<locked>>88%46,949 psi75%2877 fps95.4%
Rottweil R 905<<locked>>86%41,582 psi67%2815 fps95.3%
Rottweil R 907<<locked>>80%44,947 psi72%2812 fps97.2%
Shooters World Long Rifle<<locked>>80%43,845 psi70%2792 fps98.5%
Shooters World Precision<<locked>>80%52,910 psi85%2933 fps100%
Shooters World SW4350<<locked>>80%42,061 psi67%2769 fps97.2%
SNPE Vectan SP 11<<locked>>80%49,647 psi80%2943 fps100%
SNPE Vectan Tubal 5000<<locked>>80%49,110 psi79%2779 fps100%
SNPE Vectan Tubal 7000<<locked>>80%42,757 psi69%2730 fps97.3%
SNPE Vectan Tubal 8000<<locked>>86%41,205 psi66%2808 fps95.1%
Somchem S355<<locked>>80%48,544 psi78%2884 fps100%
Somchem S361<<locked>>90%51,503 psi83%2927 fps95.8%
Somchem S365<<locked>>80%37,550 psi60%2746 fps99.9%
Somchem S385<<locked>>84%39,537 psi63%2740 fps95.6%
Unknown powder<<locked>>80%43,874 psi70%2848 fps99%
Vihtavuori N150<<locked>>80%41,727 psi67%2723 fps100%
Vihtavuori N160<<locked>>80%44,019 psi71%2818 fps99.3%
Vihtavuori N165<<locked>>90%40,234 psi65%2743 fps95.4%
Vihtavuori N550<<locked>>80%44,715 psi72%2867 fps99.3%
Vihtavuori N555<<locked>>80%32,938 psi53%2628 fps97.3%
Vihtavuori N56069.4 gr94%49,371 psi79%3035 fps95.5%
Vihtavuori N565<<locked>>98%48,515 psi78%2995 fps95.6%
Winchester 6.5 StaBALL<<locked>>80%41,321 psi66%2753 fps100%
Winchester 760<<locked>>80%47,065 psi75%2923 fps98.2%
Winchester StaBALL HD<<locked>>80%26,150 psi42%2520 fps96.2%
Winchester Supreme 780<<locked>>86%42,438 psi68%2799 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 87 powders for 7 mm Rem. Mag. loaded with the .285 | 139gr | Prvi Partizan SP. Winchester StaBALL HD delivers the highest muzzle velocity at 3,192 fps; across all powders the maximum-charge window runs from 1,919 fps to 3,192 fps. ADI AR 2217 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.285" calls for a 1:16.0 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. Alliant Reloder-26, Vihtavuori N560, Norma MRP rank at the top here: for 7 mm Rem. Mag. with the .285 | 139gr | Prvi Partizan SP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Norma 217 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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