Load data for 7 mm Rem. Mag. + .284 | 168gr | Sierra MatchKing

7 mm Rem. Mag. cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:168 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:1:10.5

Load data in caliber 7 mm Rem. Mag. with .284 | 168gr | Sierra MatchKing bullet and 78 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 2700<<locked>>82%54,795 psi88%2697 fps99.7%
Accurate 3100<<locked>>94%53,606 psi86%2753 fps100%
Accurate 4350<<locked>>86%55,085 psi88%2782 fps100%
Accurate MAGPRO<<locked>>94%52,794 psi85%2841 fps96.9%
ADI AR 2208<<locked>>82%56,304 psi90%2740 fps100%
ADI AR 2209<<locked>>92%56,043 psi90%2841 fps99.5%
ADI AR 2213<<locked>>94%53,534 psi86%2841 fps98.5%
ADI AR 2217ᴾ<<locked>>100%47,877 psi77%2736 fps97.7%
ADI AR 2225ᴾ<<locked>>100%42,612 psi68%2700 fps99.2%
Alliant Reloder-16<<locked>>88%55,956 psi90%2835 fps100%
Alliant Reloder-17<<locked>>82%53,534 psi86%2799 fps100%
Alliant Reloder-19<<locked>>92%55,463 psi89%2828 fps99.5%
Alliant Reloder-22<<locked>>94%53,476 psi86%2838 fps99.4%
Alliant Reloder-23<<locked>>96%54,752 psi88%2815 fps100%
Alliant Reloder-25ᴾ<<locked>>100%53,809 psi86%2871 fps100%
Alliant Reloder-26<<locked>>92%54,795 psi88%2897 fps100%
Baschieri & Pellagri 109<<locked>>96%55,550 psi89%2802 fps96.2%
Bofors RP15<<locked>>98%56,086 psi90%2877 fps99.5%
Bofors RP30ᴾ<<locked>>100%49,951 psi80%2812 fps98.5%
Bofors RP5<<locked>>94%53,476 psi86%2838 fps99.4%
Bofors RP7<<locked>>84%54,360 psi87%2733 fps99.7%
Hodgdon H1000ᴾ<<locked>>100%49,168 psi79%2766 fps98.5%
Hodgdon H414<<locked>>82%54,128 psi87%2795 fps99.9%
Hodgdon H4350<<locked>>86%54,694 psi88%2772 fps99.5%
Hodgdon H4831<<locked>>96%53,156 psi85%2776 fps97.9%
Hodgdon H4831 SC<<locked>>94%56,101 psi90%2822 fps98.3%
Hodgdon Hybrid 100V<<locked>>90%56,434 psi90%2762 fps100%
Hodgdon Retumboᴾ<<locked>>100%52,649 psi84%2933 fps99.9%
Hodgdon Superformance<<locked>>84%53,519 psi86%2818 fps99.8%
Hodgdon TrailBossᴾ<<locked>>100%37,057 psi59%1732 fps100%
IMR 4064<<locked>>82%55,521 psi89%2720 fps100%
IMR 4166 Enduron<<locked>>82%53,954 psi87%2707 fps99.9%
IMR 4350<<locked>>88%55,767 psi89%2772 fps99.8%
IMR 4451 Enduron<<locked>>84%55,622 psi89%2753 fps99.9%
IMR 4831<<locked>>90%53,461 psi86%2746 fps100%
IMR 4955 Enduron<<locked>>92%54,926 psi88%2769 fps98.3%
IMR 7828 SSC<<locked>>94%55,463 psi89%2881 fps98.9%
Lovex S065<<locked>>86%56,289 psi90%2753 fps100%
Lovex S070<<locked>>86%54,375 psi87%2749 fps99.9%
Lovex S071ᴾ<<locked>>100%54,723 psi88%2766 fps100%
Norma 204<<locked>>86%52,895 psi85%2769 fps99.1%
Norma 217ᴾ<<locked>>100%38,348 psi61%2628 fps97.6%
Norma MRP<<locked>>92%53,330 psi86%2858 fps99.9%
Norma URP<<locked>>86%53,693 psi86%2766 fps100%
Ramshot Grand<<locked>>92%55,100 psi88%2887 fps99.1%
Ramshot Hunter<<locked>>88%55,999 psi90%2825 fps100%
Ramshot Magnum<<locked>>96%55,970 psi90%2861 fps99.9%
ReloadSwiss RS 14ᴾ<<locked>>100%37,782 psi61%1772 fps100%
ReloadSwiss RS 62<<locked>>86%55,114 psi88%2808 fps100%
ReloadSwiss RS 70<<locked>>86%53,272 psi85%2831 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%53,287 psi85%2933 fps100%
ReloadSwiss RS 80ᴾ<<locked>>100%48,167 psi77%2815 fps96.7%
Rottweil R 903<<locked>>82%55,651 psi89%2733 fps100%
Rottweil R 904<<locked>>90%53,737 psi86%2756 fps98.5%
Rottweil R 905<<locked>>92%54,897 psi88%2818 fps99.5%
Rottweil R 907<<locked>>84%54,360 psi87%2733 fps99.7%
Shooters World Long Rifle<<locked>>86%56,289 psi90%2753 fps100%
Shooters World SW4350<<locked>>86%54,375 psi87%2749 fps99.9%
SNPE Vectan Tubal 5000<<locked>>82%55,332 psi89%2605 fps100%
SNPE Vectan Tubal 7000<<locked>>86%55,579 psi89%2710 fps99.9%
SNPE Vectan Tubal 8000<<locked>>92%54,462 psi87%2812 fps99.4%
Somchem S355<<locked>>82%55,085 psi88%2723 fps100%
Somchem S361<<locked>>90%55,129 psi88%2749 fps98.1%
Somchem S365<<locked>>88%54,027 psi87%2772 fps100%
Somchem S385<<locked>>92%55,521 psi89%2792 fps99.8%
Unknown powder<<locked>>84%53,954 psi87%2769 fps100%
Vihtavuori N150<<locked>>86%53,766 psi86%2667 fps100%
Vihtavuori N160<<locked>>84%54,302 psi87%2740 fps100%
Vihtavuori N165<<locked>>96%53,113 psi85%2743 fps99.5%
Vihtavuori N550<<locked>>84%54,708 psi88%2782 fps100%
Vihtavuori N555<<locked>>92%53,548 psi86%2789 fps100%
Vihtavuori N560<<locked>>94%53,722 psi86%2864 fps98.2%
Vihtavuori N565<<locked>>98%52,808 psi85%2831 fps98.3%
Vihtavuori N568ᴾ<<locked>>100%49,530 psi79%2825 fps96.4%
Winchester 6.5 StaBALL<<locked>>86%55,013 psi88%2723 fps100%
Winchester 760<<locked>>82%54,128 psi87%2795 fps99.9%
Winchester StaBALL HD<<locked>>98%55,883 psi90%2946 fps100%
Winchester Supreme 780<<locked>>90%52,953 psi85%2753 fps99.2%

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%51,140 psi82%2641 fps99.4%
Accurate 3100<<locked>>80%33,576 psi54%2379 fps97.2%
Accurate 4350<<locked>>80%45,049 psi72%2625 fps100%
Accurate MAGPRO<<locked>>90%46,050 psi74%2720 fps95.1%
ADI AR 2208<<locked>>80%52,982 psi85%2690 fps100%
ADI AR 2209<<locked>>80%37,594 psi60%2500 fps95.8%
ADI AR 2213<<locked>>86%41,031 psi66%2605 fps95.4%
ADI AR 2217<<locked>>94%39,291 psi63%2562 fps95.1%
ADI AR 2225<<locked>>92%32,996 psi53%2464 fps95.9%
Alliant Reloder-16<<locked>>80%43,192 psi69%2631 fps100%
Alliant Reloder-17<<locked>>80%49,676 psi80%2743 fps100%
Alliant Reloder-19<<locked>>80%37,608 psi60%2497 fps95.8%
Alliant Reloder-22<<locked>>82%35,882 psi58%2497 fps95.3%
Alliant Reloder-23<<locked>>80%32,155 psi52%2405 fps99.5%
Alliant Reloder-25<<locked>>80%28,108 psi45%2313 fps95.3%
Alliant Reloder-26<<locked>>80%34,983 psi56%2536 fps98.9%
Baschieri & Pellagri 109<<locked>>94%52,301 psi84%2749 fps95.4%
Bofors RP15<<locked>>84%35,607 psi57%2490 fps95%
Bofors RP30<<locked>>92%38,058 psi61%2579 fps95.3%
Bofors RP5<<locked>>82%35,882 psi58%2497 fps95.3%
Bofors RP7<<locked>>80%47,848 psi77%2628 fps99.1%
Hodgdon H1000<<locked>>92%37,811 psi61%2533 fps95.2%
Hodgdon H414<<locked>>80%50,662 psi81%2740 fps99.7%
Hodgdon H4350<<locked>>80%45,266 psi73%2612 fps98.2%
Hodgdon H4831<<locked>>90%43,671 psi70%2608 fps95.7%
Hodgdon H4831 SC<<locked>>86%43,033 psi69%2595 fps95.4%
Hodgdon Hybrid 100V<<locked>>80%40,669 psi65%2516 fps100%
Hodgdon Retumbo<<locked>>88%35,549 psi57%2566 fps95.7%
Hodgdon Superformance<<locked>>80%46,166 psi74%2697 fps99.1%
Hodgdon TrailBoss<<locked>>80%27,833 psi45%1549 fps100%
IMR 4064<<locked>>80%52,199 psi84%2671 fps100%
IMR 4166 Enduron<<locked>>80%50,763 psi81%2654 fps99.7%
IMR 4350<<locked>>80%43,323 psi69%2562 fps98.4%
IMR 4451 Enduron<<locked>>80%49,313 psi79%2654 fps99.5%
IMR 4831<<locked>>80%38,986 psi63%2497 fps99.6%
IMR 4955 Enduron<<locked>>84%42,743 psi69%2556 fps95.6%
IMR 7828 SSC<<locked>>86%41,974 psi67%2638 fps95.9%
Lovex S065<<locked>>80%46,746 psi75%2602 fps99.8%
Lovex S070<<locked>>80%45,092 psi72%2592 fps99.2%
Lovex S071<<locked>>80%29,008 psi47%2264 fps95.3%
Norma 204<<locked>>80%43,352 psi70%2598 fps97.3%
Norma 217<<locked>>96%33,591 psi54%2510 fps95.7%
Norma MRP56.2 gr80%34,838 psi56%2500 fps96.5%
Norma URP<<locked>>80%44,222 psi71%2612 fps100%
Ramshot Grand<<locked>>84%40,901 psi66%2628 fps96%
Ramshot Hunter<<locked>>80%43,120 psi69%2608 fps99.3%
Ramshot Magnum<<locked>>82%33,127 psi53%2428 fps95%
ReloadSwiss RS 14<<locked>>80%28,355 psi45%1585 fps100%
ReloadSwiss RS 62<<locked>>80%44,962 psi72%2644 fps100%
ReloadSwiss RS 70<<locked>>80%43,076 psi69%2661 fps99.9%
ReloadSwiss RS 76<<locked>>86%32,489 psi52%2480 fps95.4%
ReloadSwiss RS 80<<locked>>98%44,628 psi72%2746 fps95.7%
Rottweil R 903<<locked>>80%51,996 psi83%2680 fps100%
Rottweil R 904<<locked>>80%38,957 psi62%2480 fps95%
Rottweil R 905<<locked>>80%36,941 psi59%2484 fps95.8%
Rottweil R 907<<locked>>80%47,848 psi77%2628 fps99.1%
Shooters World Long Rifle<<locked>>80%46,746 psi75%2602 fps99.8%
Shooters World SW4350<<locked>>80%45,092 psi72%2592 fps99.2%
SNPE Vectan Tubal 5000<<locked>>80%52,228 psi84%2566 fps100%
SNPE Vectan Tubal 7000<<locked>>80%45,730 psi73%2552 fps99.2%
SNPE Vectan Tubal 8000<<locked>>80%36,608 psi59%2477 fps95.6%
Somchem S355<<locked>>80%51,808 psi83%2677 fps100%
Somchem S361<<locked>>82%42,409 psi68%2530 fps95.2%
Somchem S365<<locked>>80%41,162 psi66%2569 fps100%
Somchem S385<<locked>>80%37,536 psi60%2467 fps96.9%
Unknown powder<<locked>>80%47,384 psi76%2664 fps100%
Vihtavuori N150<<locked>>80%44,773 psi72%2530 fps100%
Vihtavuori N160<<locked>>80%47,456 psi76%2635 fps100%
Vihtavuori N165<<locked>>82%33,765 psi54%2375 fps95.1%
Vihtavuori N550<<locked>>80%48,182 psi77%2680 fps100%
Vihtavuori N555<<locked>>80%36,085 psi58%2477 fps99.5%
Vihtavuori N56059.2 gr86%41,060 psi66%2628 fps95.1%
Vihtavuori N565<<locked>>90%40,379 psi65%2598 fps95.1%
Vihtavuori N568<<locked>>98%46,195 psi74%2762 fps95.5%
Winchester 6.5 StaBALL<<locked>>80%44,628 psi72%2569 fps100%
Winchester 760<<locked>>80%50,662 psi81%2740 fps99.7%
Winchester StaBALL HD55.7 gr80%28,660 psi46%2421 fps99.7%
Winchester Supreme 780<<locked>>80%37,159 psi60%2461 fps95.7%

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 Rem. Mag. loaded with the .284 | 168gr | Sierra MatchKing. Winchester StaBALL HD delivers the highest muzzle velocity at 2,946 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,946 fps. ADI AR 2217 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 (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 168.0 gr projectile in 0.284" calls for a 1:10.5 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. Winchester StaBALL HD, Vihtavuori N560, Norma MRP rank at the top here: for 7 mm Rem. Mag. with the .284 | 168gr | Sierra MatchKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, Vihtavuori N570 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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