Load data for 7 mm Rem. Mag. + .284 | 165gr | Sierra Tipped GameKing

7 mm Rem. Mag. cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:165 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:1:9.5

Load data in caliber 7 mm Rem. Mag. with .284 | 165gr | Sierra Tipped GameKing bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP 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.

A valid access license is required to use the Personalized Load Calculator.

You can find more information in our FAQ: How can I use the Personalized Load Calculator?

Max Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2700<<locked>>84%55,695 psi89%2720 fps99.6%
Accurate 3100<<locked>>96%54,157 psi87%2773 fps100%
Accurate 4350<<locked>>88%55,898 psi90%2808 fps100%
Accurate MAGPRO<<locked>>96%53,142 psi85%2861 fps96.5%
ADI AR 2208<<locked>>82%53,983 psi87%2720 fps100%
ADI AR 2209<<locked>>94%56,420 psi90%2858 fps99.3%
ADI AR 2213<<locked>>96%54,027 psi87%2858 fps98.2%
ADI AR 2217ᴾ<<locked>>100%45,411 psi73%2691 fps96.4%
ADI AR 2225ᴾ<<locked>>100%41,191 psi66%2652 fps98.2%
Alliant Reloder- TS 15.5<<locked>>82%55,114 psi88%2742 fps100%
Alliant Reloder-16<<locked>>90%56,391 psi90%2857 fps100%
Alliant Reloder-17<<locked>>84%53,867 psi86%2823 fps100%
Alliant Reloder-19<<locked>>94%56,043 psi90%2849 fps99.3%
Alliant Reloder-22<<locked>>96%53,693 psi86%2855 fps99.1%
Alliant Reloder-23<<locked>>98%55,767 psi89%2833 fps100%
Alliant Reloder-25ᴾ<<locked>>100%51,111 psi82%2833 fps100%
Alliant Reloder-26<<locked>>94%54,839 psi88%2920 fps100%
Bofors RP15ᴾ<<locked>>100%56,188 psi90%2890 fps99.3%
Bofors RP3<<locked>>82%56,231 psi90%2761 fps100%
Bofors RP30ᴾ<<locked>>100%47,790 psi77%2765 fps97.4%
Bofors RP5<<locked>>96%53,693 psi86%2854 fps99.2%
Bofors RP7<<locked>>86%55,071 psi88%2755 fps99.6%
Hodgdon H1000ᴾ<<locked>>100%46,296 psi74%2717 fps97.4%
Hodgdon H380<<locked>>82%56,115 psi90%2779 fps100%
Hodgdon H414<<locked>>84%54,984 psi88%2822 fps99.8%
Hodgdon H4350<<locked>>88%55,317 psi89%2795 fps99.3%
Hodgdon H4831<<locked>>98%54,940 psi88%2791 fps97.5%
Hodgdon H4831 SC<<locked>>94%53,040 psi85%2782 fps97.4%
Hodgdon Hybrid 100V<<locked>>90%53,432 psi86%2736 fps100%
Hodgdon Retumboᴾ<<locked>>100%49,429 psi79%2887 fps99.3%
Hodgdon Superformance<<locked>>86%53,983 psi87%2839 fps99.7%
Hodgdon TrailBossᴾ<<locked>>100%37,797 psi61%1730 fps100%
IMR 4064<<locked>>82%53,069 psi85%2697 fps100%
IMR 4166 Enduron<<locked>>84%55,085 psi88%2731 fps99.8%
IMR 4350<<locked>>88%53,156 psi85%2743 fps99.5%
IMR 4451 Enduron<<locked>>84%53,243 psi85%2726 fps99.7%
IMR 4831<<locked>>92%53,679 psi86%2763 fps100%
IMR 4955 Enduron<<locked>>94%55,506 psi89%2785 fps98%
IMR 7828 SSC<<locked>>96%55,970 psi90%2900 fps98.6%
Lovex S065<<locked>>86%53,838 psi86%2728 fps100%
Lovex S070<<locked>>88%55,303 psi89%2774 fps99.9%
Lovex S071ᴾ<<locked>>100%52,098 psi84%2732 fps99.9%
Norma 204<<locked>>88%53,650 psi86%2792 fps98.9%
Norma MRP<<locked>>94%53,432 psi86%2877 fps99.8%
Norma URP<<locked>>88%54,462 psi87%2792 fps100%
Ramshot Grand<<locked>>94%55,651 psi89%2907 fps98.8%
Ramshot Hunter<<locked>>88%52,997 psi85%2793 fps99.9%
Ramshot Magnum<<locked>>96%52,286 psi84%2820 fps99.4%
ReloadSwiss RS 14ᴾ<<locked>>100%38,000 psi61%1770 fps100%
ReloadSwiss RS 50<<locked>>82%55,883 psi90%2766 fps100%
ReloadSwiss RS 60<<locked>>82%53,476 psi86%2812 fps100%
ReloadSwiss RS 62<<locked>>88%55,695 psi89%2830 fps100%
ReloadSwiss RS 70<<locked>>88%53,925 psi86%2858 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%51,242 psi82%2886 fps99.8%
Rottweil R 903<<locked>>84%56,333 psi90%2759 fps100%
Rottweil R 904<<locked>>92%54,317 psi87%2774 fps98.2%
Rottweil R 905<<locked>>94%55,347 psi89%2836 fps99.3%
Rottweil R 907<<locked>>86%55,071 psi88%2755 fps99.6%
Shooters World Long Rifle<<locked>>86%53,838 psi86%2728 fps100%
Shooters World SW4350<<locked>>88%55,303 psi89%2776 fps99.9%
SNPE Vectan SP 11<<locked>>82%54,143 psi87%2764 fps100%
SNPE Vectan Tubal 5000<<locked>>82%53,229 psi85%2592 fps100%
SNPE Vectan Tubal 7000<<locked>>86%53,055 psi85%2682 fps99.7%
SNPE Vectan Tubal 8000<<locked>>94%54,897 psi88%2831 fps99.2%
Somchem S355<<locked>>84%56,057 psi90%2752 fps100%
Somchem S361<<locked>>92%56,072 psi90%2770 fps97.9%
Somchem S365<<locked>>90%54,375 psi87%2795 fps100%
Somchem S385<<locked>>94%55,854 psi90%2809 fps99.7%
Unknown powder<<locked>>86%54,752 psi88%2794 fps100%
Vihtavuori N150<<locked>>88%54,302 psi87%2688 fps100%
Vihtavuori N160<<locked>>86%54,911 psi88%2761 fps100%
Vihtavuori N165<<locked>>98%54,157 psi87%2762 fps99.3%
Vihtavuori N550<<locked>>86%55,521 psi89%2809 fps100%
Vihtavuori N555<<locked>>94%53,708 psi86%2809 fps100%
Vihtavuori N560<<locked>>96%53,998 psi87%2880 fps97.9%
Vihtavuori N565ᴾ<<locked>>100%54,201 psi87%2845 fps97.9%
Winchester 6.5 StaBALL<<locked>>88%55,637 psi89%2746 fps100%
Winchester 760<<locked>>84%54,984 psi88%2822 fps99.8%
Winchester StaBALL HD<<locked>>98%51,155 psi82%2906 fps100%
Winchester Supreme 780<<locked>>92%53,679 psi86%2774 fps99%

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%48,921 psi78%2612 fps98.8%
Accurate 3100<<locked>>80%31,546 psi51%2343 fps96%
Accurate 4350<<locked>>80%42,569 psi68%2592 fps99.8%
Accurate MAGPRO<<locked>>94%49,458 psi79%2795 fps95.6%
ADI AR 2208<<locked>>80%50,923 psi82%2672 fps100%
ADI AR 2209<<locked>>82%38,130 psi61%2521 fps95.4%
ADI AR 2213<<locked>>88%41,466 psi66%2622 fps95%
ADI AR 2217<<locked>>98%43,540 psi70%2634 fps95.5%
ADI AR 2225<<locked>>94%33,141 psi53%2476 fps95.3%
Alliant Reloder- TS 15.5<<locked>>80%51,706 psi83%2693 fps100%
Alliant Reloder-16<<locked>>80%40,814 psi65%2598 fps99.8%
Alliant Reloder-17<<locked>>80%46,862 psi75%2716 fps100%
Alliant Reloder-19<<locked>>82%38,043 psi61%2518 fps95.5%
Alliant Reloder-22<<locked>>86%38,537 psi62%2572 fps95.8%
Alliant Reloder-23<<locked>>80%30,385 psi49%2375 fps98.9%
Alliant Reloder-25<<locked>>84%30,211 psi48%2388 fps96%
Alliant Reloder-2655.8 gr80%32,750 psi53%2495 fps97.9%
Bofors RP15<<locked>>88%38,247 psi61%2562 fps95.5%
Bofors RP3<<locked>>80%52,431 psi84%2708 fps100%
Bofors RP30<<locked>>96%40,683 psi65%2651 fps95.7%
Bofors RP5<<locked>>86%38,537 psi62%2572 fps95.8%
Bofors RP7<<locked>>80%45,730 psi73%2598 fps98.5%
Hodgdon H1000<<locked>>96%40,741 psi65%2602 fps95.7%
Hodgdon H380<<locked>>80%52,634 psi84%2726 fps100%
Hodgdon H414<<locked>>80%48,109 psi77%2708 fps99.2%
Hodgdon H4350<<locked>>80%43,294 psi69%2585 fps97.4%
Hodgdon H4831<<locked>>92%44,150 psi71%2627 fps95.2%
Hodgdon H4831 SC<<locked>>88%43,497 psi70%2613 fps95%
Hodgdon Hybrid 100V<<locked>>80%38,537 psi62%2491 fps100%
Hodgdon Retumbo<<locked>>90%35,752 psi57%2579 fps95.1%
Hodgdon Superformance<<locked>>80%43,308 psi69%2656 fps98.3%
Hodgdon TrailBoss<<locked>>80%27,644 psi44%1544 fps100%
IMR 4064<<locked>>80%49,995 psi80%2648 fps100%
IMR 4166 Enduron<<locked>>80%48,820 psi78%2629 fps99.3%
IMR 4350<<locked>>80%41,278 psi66%2533 fps97.5%
IMR 4451 Enduron<<locked>>80%47,195 psi76%2625 fps99%
IMR 4831<<locked>>80%36,956 psi59%2468 fps99.1%
IMR 4955 Enduron<<locked>>86%43,352 psi70%2575 fps95.2%
IMR 7828 SSC<<locked>>88%42,409 psi68%2655 fps95.5%
Lovex S065<<locked>>80%44,802 psi72%2578 fps99.4%
Lovex S070<<locked>>80%42,946 psi69%2563 fps98.5%
Lovex S071<<locked>>84%30,908 psi50%2327 fps95.7%
Norma 204<<locked>>80%41,060 psi66%2563 fps96.2%
Norma MRP54.1 gr80%32,721 psi52%2458 fps95%
Norma URP<<locked>>80%41,887 psi67%2582 fps99.7%
Ramshot Grand<<locked>>86%41,321 psi66%2646 fps95.5%
Ramshot Hunter<<locked>>80%40,785 psi65%2576 fps98.6%
Ramshot Magnum<<locked>>86%35,824 psi57%2505 fps95.6%
ReloadSwiss RS 14<<locked>>80%28,152 psi45%1580 fps100%
ReloadSwiss RS 50<<locked>>80%52,475 psi84%2714 fps99.8%
ReloadSwiss RS 60<<locked>>80%49,719 psi80%2759 fps100%
ReloadSwiss RS 62<<locked>>80%42,424 psi68%2614 fps99.7%
ReloadSwiss RS 70<<locked>>80%40,756 psi65%2625 fps99.4%
ReloadSwiss RS 76<<locked>>90%34,882 psi56%2554 fps96.1%
Rottweil R 903<<locked>>80%49,458 psi79%2659 fps100%
Rottweil R 904<<locked>>84%42,148 psi68%2558 fps95.5%
Rottweil R 905<<locked>>82%37,289 psi60%2503 fps95.4%
Rottweil R 907<<locked>>80%45,730 psi73%2598 fps98.5%
Shooters World Long Rifle<<locked>>80%44,802 psi72%2578 fps99.4%
Shooters World SW4350<<locked>>80%42,946 psi69%2562 fps98.5%
SNPE Vectan SP 11<<locked>>80%50,807 psi81%2715 fps100%
SNPE Vectan Tubal 5000<<locked>>80%50,125 psi80%2549 fps100%
SNPE Vectan Tubal 7000<<locked>>80%43,743 psi70%2526 fps98.6%
SNPE Vectan Tubal 8000<<locked>>82%36,941 psi59%2497 fps95.3%
Somchem S355<<locked>>80%49,647 psi80%2657 fps100%
Somchem S361<<locked>>86%45,876 psi74%2604 fps95.7%
Somchem S365<<locked>>80%38,653 psi62%2542 fps100%
Somchem S385<<locked>>80%35,360 psi57%2431 fps95.7%
Unknown powder<<locked>>80%44,991 psi72%2636 fps99.7%
Vihtavuori N150<<locked>>80%42,482 psi68%2505 fps100%
Vihtavuori N160<<locked>>80%45,179 psi72%2609 fps99.9%
Vihtavuori N165<<locked>>86%36,260 psi58%2447 fps95.6%
Vihtavuori N550<<locked>>80%45,643 psi73%2649 fps99.9%
Vihtavuori N555<<locked>>80%33,968 psi54%2448 fps98.9%
Vihtavuori N56059.6 gr90%44,077 psi71%2702 fps95.5%
Vihtavuori N565<<locked>>94%43,120 psi69%2671 fps95.6%
Winchester 6.5 StaBALL<<locked>>80%42,221 psi68%2543 fps100%
Winchester 760<<locked>>80%48,109 psi77%2708 fps99.2%
Winchester StaBALL HD<<locked>>80%26,876 psi43%2372 fps98.7%
Winchester Supreme 780<<locked>>82%37,710 psi60%2484 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 80 powders for 7 mm Rem. Mag. loaded with the .284 | 165gr | Sierra Tipped GameKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,920 fps; across all powders the maximum-charge window runs from 1,730 fps to 2,920 fps. ADI AR 2217 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.284" calls for a 1:9.5 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. Vihtavuori N560, Norma MRP, Alliant Reloder-26 rank at the top here: for 7 mm Rem. Mag. with the .284 | 165gr | Sierra Tipped GameKing 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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