Load data for 7 x 61 S&H (Super) + .284 | 150gr | Sierra GameKing

7 x 61 S&H (Super) cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:150 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.401"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:77.6 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:12.0

Load data in caliber 7 x 61 S&H (Super) with .284 | 150gr | Sierra GameKing bullet and 70 powders. The key underlying parameters are shown in the table above.

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>>96%51,358 psi87%2851 fps99.6%
Accurate 4350<<locked>>86%49,574 psi84%2838 fps99.9%
Accurate High Country<<locked>>94%52,460 psi89%2992 fps97.4%
ADI AR 2208<<locked>>82%52,156 psi89%2818 fps100%
ADI AR 2209<<locked>>92%50,546 psi86%2884 fps97.8%
ADI AR 2213<<locked>>96%51,677 psi88%2933 fps96.8%
ADI AR 2225ᴾ<<locked>>100%38,072 psi65%2703 fps96.2%
Alliant Reloder- TS 15.5<<locked>>82%53,040 psi90%2841 fps100%
Alliant Reloder-16<<locked>>88%50,444 psi86%2900 fps100%
Alliant Reloder-17<<locked>>84%51,227 psi87%2917 fps100%
Alliant Reloder-19<<locked>>92%50,067 psi85%2874 fps97.7%
Alliant Reloder-22<<locked>>96%51,082 psi87%2933 fps98.1%
Alliant Reloder-23<<locked>>98%51,793 psi88%2920 fps100%
Alliant Reloder-25ᴾ<<locked>>100%47,906 psi82%2910 fps99.8%
Alliant Reloder-26<<locked>>94%51,750 psi88%3002 fps100%
Bofors RP15<<locked>>98%50,111 psi85%2913 fps97.8%
Bofors RP5<<locked>>96%51,082 psi87%2933 fps98.1%
Bofors RP7<<locked>>84%49,951 psi85%2792 fps98.5%
Hodgdon H1000ᴾ<<locked>>100%47,369 psi81%2848 fps96.6%
Hodgdon H414<<locked>>86%51,547 psi88%2890 fps99.1%
Hodgdon H4350<<locked>>84%51,242 psi87%2851 fps98.2%
Hodgdon H4831<<locked>>94%51,837 psi88%2877 fps96.2%
Hodgdon H4831 SC<<locked>>94%50,807 psi86%2861 fps95.9%
Hodgdon Hybrid 100V<<locked>>90%50,749 psi86%2828 fps100%
Hodgdon Retumboᴾ<<locked>>100%46,847 psi80%2949 fps98%
Hodgdon Superformance<<locked>>86%51,503 psi88%2923 fps99%
Hodgdon TrailBossᴾ<<locked>>100%36,666 psi62%1818 fps100%
IMR 4350<<locked>>88%50,836 psi87%2825 fps98.7%
IMR 4451 Enduron<<locked>>84%51,285 psi87%2818 fps99%
IMR 4831<<locked>>88%50,314 psi86%2838 fps100%
IMR 4955 Enduron<<locked>>92%50,096 psi85%2815 fps96%
IMR 7828 SSC<<locked>>98%52,765 psi90%2966 fps97.2%
Lovex S065<<locked>>86%51,706 psi88%2822 fps99.7%
Lovex S070<<locked>>88%52,866 psi90%2861 fps99.4%
Lovex S071ᴾ<<locked>>100%48,791 psi83%2808 fps99.3%
Norma 204<<locked>>88%51,416 psi88%2874 fps97.8%
Norma MRP<<locked>>94%50,633 psi86%2956 fps99.1%
Norma URP<<locked>>88%51,837 psi88%2881 fps100%
Ramshot Grand<<locked>>96%49,458 psi84%2920 fps96.8%
Ramshot Hunter<<locked>>88%50,734 psi86%2881 fps99.5%
Ramshot Magnumᴾ<<locked>>100%51,343 psi87%2923 fps98.7%
ReloadSwiss RS 14ᴾ<<locked>>100%37,318 psi64%1857 fps100%
ReloadSwiss RS 60<<locked>>82%50,676 psi86%2907 fps100%
ReloadSwiss RS 62<<locked>>88%53,069 psi90%2920 fps100%
ReloadSwiss RS 70<<locked>>88%51,314 psi87%2943 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%47,224 psi80%2949 fps99%
Rottweil R 903<<locked>>82%50,662 psi86%2805 fps100%
Rottweil R 904<<locked>>92%52,199 psi89%2858 fps97%
Rottweil R 905<<locked>>94%52,779 psi90%2917 fps98.4%
Rottweil R 907<<locked>>84%49,951 psi85%2792 fps98.5%
Shooters World Long Rifle<<locked>>86%51,706 psi88%2822 fps99.7%
Shooters World SW4350<<locked>>88%52,866 psi90%2861 fps99.4%
SNPE Vectan SP 11<<locked>>82%51,779 psi88%2858 fps100%
SNPE Vectan Tubal 5000<<locked>>82%51,343 psi87%2694 fps100%
SNPE Vectan Tubal 7000<<locked>>86%51,140 psi87%2769 fps99%
SNPE Vectan Tubal 8000<<locked>>94%52,330 psi89%2913 fps98.3%
Somchem S355<<locked>>82%50,633 psi86%2802 fps100%
Somchem S365<<locked>>90%51,590 psi88%2887 fps100%
Somchem S385<<locked>>92%50,067 psi85%2838 fps98.5%
Vihtavuori N150<<locked>>84%51,706 psi88%2776 fps100%
Vihtavuori N160<<locked>>86%50,328 psi86%2822 fps99.9%
Vihtavuori N165<<locked>>98%52,649 psi90%2867 fps98.6%
Vihtavuori N550<<locked>>88%52,881 psi90%2881 fps100%
Vihtavuori N555<<locked>>94%50,807 psi86%2894 fps100%
Vihtavuori N560<<locked>>94%50,792 psi86%2943 fps96.3%
Vihtavuori N565ᴾ<<locked>>100%50,125 psi85%2917 fps96.4%
Winchester 6.5 StaBALL<<locked>>88%53,113 psi90%2838 fps100%
Winchester 760<<locked>>86%51,764 psi88%2894 fps99.2%
Winchester StaBALL HDᴾ<<locked>>100%51,619 psi88%3048 fps100%
Winchester Supreme 780<<locked>>94%49,748 psi85%2828 fps97.6%

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>82%31,995 psi54%2457 fps95%
Accurate 4350<<locked>>80%40,364 psi69%2667 fps99.1%
Accurate High Country<<locked>>90%45,571 psi78%2861 fps95.6%
ADI AR 2208<<locked>>80%49,037 psi83%2769 fps100%
ADI AR 2209<<locked>>86%41,452 psi71%2703 fps95.4%
ADI AR 2213<<locked>>92%45,194 psi77%2808 fps95%
ADI AR 2225<<locked>>98%35,810 psi61%2644 fps95.1%
Alliant Reloder- TS 15.5<<locked>>80%49,850 psi85%2792 fps100%
Alliant Reloder-16<<locked>>80%38,928 psi66%2674 fps99.1%
Alliant Reloder-17<<locked>>80%44,454 psi76%2799 fps100%
Alliant Reloder-19<<locked>>86%41,249 psi70%2697 fps95.4%
Alliant Reloder-22<<locked>>90%41,843 psi71%2756 fps95.8%
Alliant Reloder-23<<locked>>80%28,848 psi49%2431 fps97.4%
Alliant Reloder-25<<locked>>88%32,547 psi55%2552 fps95.8%
Alliant Reloder-26<<locked>>80%30,850 psi53%2543 fps95.9%
Bofors RP15<<locked>>92%41,321 psi70%2740 fps95.4%
Bofors RP5<<locked>>90%41,843 psi71%2756 fps95.8%
Bofors RP7<<locked>>80%43,903 psi75%2677 fps97.3%
Hodgdon H1000<<locked>>98%44,396 psi76%2785 fps95.7%
Hodgdon H414<<locked>>80%42,206 psi72%2713 fps97.4%
Hodgdon H4350<<locked>>80%45,020 psi77%2733 fps96.8%
Hodgdon H4831<<locked>>92%48,356 psi82%2818 fps95.3%
Hodgdon H4831 SC<<locked>>92%47,442 psi81%2802 fps95%
Hodgdon Hybrid 100V<<locked>>80%36,651 psi62%2569 fps99.5%
Hodgdon Retumbo<<locked>>96%41,278 psi70%2822 fps96.2%
Hodgdon Superformance<<locked>>80%41,133 psi70%2726 fps96.8%
Hodgdon TrailBoss<<locked>>80%27,427 psi47%1624 fps100%
IMR 4350<<locked>>80%39,479 psi67%2605 fps96%
IMR 4451 Enduron<<locked>>80%45,353 psi77%2707 fps98%
IMR 4831<<locked>>80%38,725 psi66%2618 fps98.8%
IMR 4955 Enduron<<locked>>90%47,137 psi80%2759 fps95.2%
IMR 7828 SSC<<locked>>94%46,093 psi78%2841 fps95.4%
Lovex S065<<locked>>80%42,989 psi73%2661 fps98.6%
Lovex S070<<locked>>80%41,104 psi70%2638 fps97.3%
Lovex S071<<locked>>88%33,344 psi57%2490 fps95.6%
Norma 204<<locked>>82%41,814 psi71%2690 fps95.3%
Norma MRP<<locked>>84%35,621 psi61%2638 fps95%
Norma URP<<locked>>80%39,856 psi68%2657 fps98.9%
Ramshot Grand<<locked>>94%46,253 psi79%2858 fps95.9%
Ramshot Hunter<<locked>>80%38,827 psi66%2648 fps97.3%
Ramshot Magnum<<locked>>92%38,159 psi65%2661 fps95.2%
ReloadSwiss RS 14<<locked>>80%27,876 psi47%1660 fps100%
ReloadSwiss RS 60<<locked>>80%47,195 psi80%2851 fps100%
ReloadSwiss RS 62<<locked>>80%40,234 psi68%2687 fps98.8%
ReloadSwiss RS 70<<locked>>80%38,740 psi66%2694 fps98.4%
ReloadSwiss RS 76<<locked>>94%37,985 psi65%2736 fps96.1%
Rottweil R 903<<locked>>80%47,282 psi80%2749 fps100%
Rottweil R 904<<locked>>88%45,818 psi78%2743 fps95.5%
Rottweil R 905<<locked>>86%40,480 psi69%2684 fps95.4%
Rottweil R 907<<locked>>80%43,903 psi75%2677 fps97.3%
Shooters World Long Rifle<<locked>>80%42,989 psi73%2661 fps98.6%
Shooters World SW4350<<locked>>80%41,104 psi70%2638 fps97.3%
SNPE Vectan SP 11<<locked>>80%48,660 psi83%2805 fps100%
SNPE Vectan Tubal 5000<<locked>>80%48,182 psi82%2644 fps100%
SNPE Vectan Tubal 7000<<locked>>80%41,930 psi71%2602 fps97.4%
SNPE Vectan Tubal 8000<<locked>>86%40,118 psi68%2677 fps95.2%
Somchem S355<<locked>>80%47,601 psi81%2749 fps100%
Somchem S365<<locked>>80%36,463 psi62%2615 fps100%
Somchem S385<<locked>>84%38,493 psi66%2612 fps95.6%
Vihtavuori N150<<locked>>80%45,310 psi77%2674 fps100%
Vihtavuori N160<<locked>>80%41,321 psi70%2657 fps99.1%
Vihtavuori N165<<locked>>88%37,985 psi65%2592 fps95%
Vihtavuori N550<<locked>>80%40,857 psi70%2661 fps98.9%
Vihtavuori N555<<locked>>80%32,082 psi55%2510 fps97.5%
Vihtavuori N560<<locked>>92%47,442 psi81%2881 fps95.4%
Vihtavuori N565<<locked>>98%46,731 psi80%2854 fps95.5%
Winchester 6.5 StaBALL<<locked>>80%40,393 psi69%2625 fps100%
Winchester 760<<locked>>80%42,409 psi72%2720 fps97.5%
Winchester StaBALL HD<<locked>>80%25,512 psi43%2408 fps96.4%
Winchester Supreme 780<<locked>>88%40,379 psi69%2648 fps95.1%

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 70 powders for 7 x 61 S&H (Super) loaded with the .284 | 150gr | Sierra GameKing. Winchester StaBALL HD delivers the highest muzzle velocity at 3,048 fps; across all powders the maximum-charge window runs from 1,818 fps to 3,048 fps. ADI AR 2225 gives the best case fill at 100 %, and 70 of the 70 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 150.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Hodgdon H1000 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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