Load data for 7 mm Exp. Rem. + .284 | 160gr | Sierra GameKing

7 mm Exp. Rem. cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
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:1:11.0

Load data in caliber 7 mm Exp. Rem. with .284 | 160gr | Sierra GameKing 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-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.

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: 22"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>82%50,502 psi86%2516 fps100%
Accurate 2700<<locked>>84%52,185 psi89%2569 fps97.4%
Accurate 3100ᴾ<<locked>>100%48,254 psi82%2592 fps98.2%
Accurate 4064<<locked>>84%50,937 psi87%2566 fps100%
Accurate 4350<<locked>>92%50,589 psi86%2648 fps99.6%
ADI AR 2208<<locked>>86%51,503 psi88%2592 fps99.8%
ADI AR 2209<<locked>>98%52,040 psi89%2680 fps96.4%
Alliant Power Pro 2000-MR<<locked>>82%49,864 psi85%2690 fps99.8%
Alliant Reloder- TS 15.5<<locked>>86%51,851 psi88%2615 fps100%
Alliant Reloder-15<<locked>>84%52,228 psi89%2631 fps99.9%
Alliant Reloder-16<<locked>>94%51,793 psi88%2703 fps99.9%
Alliant Reloder-17<<locked>>90%52,518 psi89%2726 fps100%
Alliant Reloder-19<<locked>>98%51,213 psi87%2671 fps96.4%
Alliant Reloder-23ᴾ<<locked>>100%45,368 psi77%2615 fps99.9%
Alliant Reloder-25ᴾ<<locked>>100%39,813 psi68%2523 fps96.8%
Alliant Reloder-26ᴾ<<locked>>100%51,619 psi88%2789 fps99.7%
Bofors RP3<<locked>>86%52,460 psi89%2628 fps100%
Bofors RP7<<locked>>90%52,083 psi89%2605 fps97.6%
Hodgdon H380<<locked>>86%53,011 psi90%2638 fps99.6%
Hodgdon H414<<locked>>92%53,026 psi90%2694 fps98.3%
Hodgdon H4350<<locked>>88%50,198 psi85%2608 fps96.5%
Hodgdon Hybrid 100V<<locked>>96%51,793 psi88%2638 fps100%
Hodgdon LEVERevolution<<locked>>82%50,618 psi86%2628 fps100%
Hodgdon Superformance<<locked>>90%49,545 psi84%2671 fps97.3%
Hodgdon TrailBossᴾ<<locked>>100%36,042 psi61%1631 fps100%
Hodgdon VARGET<<locked>>82%51,735 psi88%2595 fps100%
IMR 4064<<locked>>84%50,850 psi87%2572 fps99.9%
IMR 4166 Enduron<<locked>>82%50,328 psi86%2552 fps97.8%
IMR 4350<<locked>>94%52,634 psi90%2631 fps97.7%
IMR 4451 Enduron<<locked>>88%50,763 psi86%2585 fps97.7%
IMR 4831<<locked>>94%51,358 psi87%2644 fps99.7%
IMR 4895<<locked>>82%50,256 psi86%2608 fps100%
Lovex S060<<locked>>82%52,852 psi90%2569 fps100%
Lovex S062<<locked>>84%50,966 psi87%2569 fps100%
Lovex S065<<locked>>90%50,575 psi86%2582 fps98.8%
Lovex S070<<locked>>92%51,503 psi88%2618 fps98.2%
Lovex S071ᴾ<<locked>>100%39,972 psi68%2448 fps96.3%
Norma 201<<locked>>82%52,388 psi89%2582 fps100%
Norma 202<<locked>>82%53,156 psi90%2585 fps100%
Norma 203B<<locked>>84%51,503 psi88%2618 fps100%
Norma MRPᴾ<<locked>>100%50,720 psi86%2740 fps97.9%
Norma URP<<locked>>92%49,908 psi85%2638 fps99.5%
Ramshot Big Game<<locked>>84%51,967 psi88%2644 fps100%
Ramshot Hunter<<locked>>94%51,924 psi88%2684 fps98.8%
ReloadSwiss RS 14ᴾ<<locked>>100%36,767 psi63%1673 fps100%
ReloadSwiss RS 50<<locked>>86%52,924 psi90%2621 fps98.7%
ReloadSwiss RS 52<<locked>>82%52,533 psi89%2690 fps99.9%
ReloadSwiss RS 60<<locked>>88%52,330 psi89%2726 fps100%
ReloadSwiss RS 62<<locked>>92%50,314 psi86%2667 fps99.5%
ReloadSwiss RS 70<<locked>>94%52,620 psi90%2743 fps99.6%
Rottweil R 902<<locked>>84%52,953 psi90%2582 fps100%
Rottweil R 903<<locked>>88%52,330 psi89%2621 fps100%
Rottweil R 905<<locked>>98%50,227 psi86%2654 fps96.4%
Rottweil R 907<<locked>>90%52,083 psi89%2605 fps97.6%
Shooters World Long Rifle<<locked>>90%50,575 psi86%2582 fps98.8%
Shooters World Precision<<locked>>84%50,966 psi87%2569 fps100%
Shooters World SW4350<<locked>>92%51,503 psi88%2618 fps98.2%
SNPE Vectan SP 11<<locked>>86%50,546 psi86%2628 fps99.9%
SNPE Vectan SP 9<<locked>>82%51,924 psi88%2605 fps100%
SNPE Vectan Tubal 5000<<locked>>86%50,807 psi86%2484 fps100%
SNPE Vectan Tubal 7000<<locked>>90%50,024 psi85%2533 fps97.7%
SNPE Vectan Tubal 8000<<locked>>98%49,748 psi85%2648 fps96.2%
Somchem S335<<locked>>82%53,040 psi90%2523 fps100%
Somchem S355<<locked>>88%52,620 psi90%2618 fps100%
Somchem S365<<locked>>96%51,663 psi88%2690 fps100%
Somchem S385<<locked>>98%50,995 psi87%2638 fps97.4%
Vihtavuori N135<<locked>>82%50,067 psi85%2510 fps100%
Vihtavuori N140<<locked>>82%50,299 psi86%2523 fps100%
Vihtavuori N150<<locked>>88%50,415 psi86%2552 fps100%
Vihtavuori N160<<locked>>92%51,851 psi88%2631 fps99.6%
Vihtavuori N165ᴾ<<locked>>100%46,847 psi80%2559 fps96%
Vihtavuori N540<<locked>>84%51,837 psi88%2562 fps100%
Vihtavuori N550<<locked>>92%51,024 psi87%2635 fps99.5%
Vihtavuori N555ᴾ<<locked>>100%50,560 psi86%2687 fps99.9%
Winchester 6.5 StaBALL<<locked>>92%51,430 psi88%2608 fps100%
Winchester 760<<locked>>90%49,951 psi85%2644 fps97.8%
Winchester StaBALL HDᴾ<<locked>>100%40,901 psi70%2648 fps100%
Winchester StaBALL Match<<locked>>82%51,909 psi88%2615 fps100%
Winchester Supreme 780ᴾ<<locked>>100%50,865 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%47,543 psi81%2477 fps100%
Accurate 2700<<locked>>80%45,730 psi78%2464 fps95.9%
Accurate 3100<<locked>>92%36,651 psi62%2379 fps95.2%
Accurate 4064<<locked>>80%45,005 psi77%2477 fps100%
Accurate 4350<<locked>>80%33,576 psi57%2323 fps96%
ADI AR 2208<<locked>>80%42,757 psi73%2444 fps98.9%
ADI AR 2209<<locked>>96%48,718 psi83%2625 fps95.6%
Alliant Power Pro 2000-MR<<locked>>80%46,398 psi79%2631 fps99.5%
Alliant Reloder- TS 15.5<<locked>>80%42,960 psi73%2467 fps99.8%
Alliant Reloder-15<<locked>>80%45,948 psi78%2530 fps99.5%
Alliant Reloder-1642.4 gr80%33,417 psi57%2336 fps96.1%
Alliant Reloder-17<<locked>>80%37,304 psi64%2451 fps98.9%
Alliant Reloder-19<<locked>>96%48,008 psi82%2615 fps95.6%
Alliant Reloder-23<<locked>>86%29,182 psi50%2251 fps95.9%
Alliant Reloder-25<<locked>>98%37,376 psi64%2467 fps95.9%
Alliant Reloder-2651.4 gr88%33,504 psi57%2418 fps95.2%
Bofors RP3<<locked>>80%43,047 psi73%2477 fps99.8%
Bofors RP7<<locked>>84%43,250 psi74%2451 fps95.5%
Hodgdon H380<<locked>>80%43,366 psi74%2477 fps98.2%
Hodgdon H414<<locked>>84%40,872 psi70%2477 fps95.5%
Hodgdon H4350<<locked>>86%47,108 psi80%2556 fps95.8%
Hodgdon Hybrid 100V<<locked>>80%30,864 psi53%2244 fps96.9%
Hodgdon LEVERevolution<<locked>>80%47,137 psi80%2572 fps100%
Hodgdon Superformance<<locked>>86%42,743 psi73%2543 fps95.5%
Hodgdon TrailBoss<<locked>>80%27,035 psi46%1460 fps100%
Hodgdon VARGET<<locked>>80%48,805 psi83%2549 fps100%
IMR 4064<<locked>>80%44,933 psi76%2477 fps99.4%
IMR 4166 Enduron<<locked>>80%47,239 psi80%2497 fps97.1%
IMR 4350<<locked>>88%43,772 psi75%2484 fps95.7%
IMR 4451 Enduron<<locked>>82%42,308 psi72%2431 fps95.7%
IMR 4831<<locked>>80%32,489 psi55%2283 fps95.7%
IMR 4895<<locked>>80%47,094 psi80%2556 fps99.8%
Lovex S060<<locked>>80%49,647 psi85%2516 fps99.9%
Lovex S062<<locked>>80%45,078 psi77%2477 fps100%
Lovex S065<<locked>>80%37,289 psi63%2336 fps95.8%
Lovex S070<<locked>>84%40,205 psi68%2415 fps95.5%
Lovex S071<<locked>>98%37,579 psi64%2398 fps95.5%
Norma 201<<locked>>80%49,458 psi84%2536 fps100%
Norma 202<<locked>>80%49,850 psi85%2536 fps100%
Norma 203B<<locked>>80%45,295 psi77%2516 fps99.6%
Norma MRP<<locked>>94%41,365 psi70%2562 fps95.3%
Norma URP<<locked>>80%33,634 psi57%2323 fps95.9%
Ramshot Big Game<<locked>>80%45,150 psi77%2536 fps99.6%
Ramshot Hunter<<locked>>84%37,391 psi64%2415 fps95.3%
ReloadSwiss RS 14<<locked>>80%27,296 psi46%1490 fps100%
ReloadSwiss RS 50<<locked>>80%43,816 psi75%2467 fps96.9%
ReloadSwiss RS 52<<locked>>80%49,124 psi84%2635 fps99.7%
ReloadSwiss RS 60<<locked>>80%39,682 psi68%2510 fps100%
ReloadSwiss RS 62<<locked>>80%33,272 psi57%2339 fps95.4%
ReloadSwiss RS 7047.5 gr82%35,099 psi60%2395 fps95.4%
Rottweil R 902<<locked>>80%46,862 psi80%2490 fps100%
Rottweil R 903<<locked>>80%40,408 psi69%2425 fps99.4%
Rottweil R 905<<locked>>96%46,905 psi80%2598 fps95.6%
Rottweil R 907<<locked>>84%43,250 psi74%2451 fps95.5%
Shooters World Long Rifle<<locked>>80%37,289 psi63%2336 fps95.8%
Shooters World Precision<<locked>>80%45,078 psi77%2477 fps100%
Shooters World SW4350<<locked>>84%40,205 psi68%2415 fps95.5%
SNPE Vectan SP 11<<locked>>80%41,423 psi71%2470 fps99.1%
SNPE Vectan SP 9<<locked>>80%48,747 psi83%2556 fps99.9%
SNPE Vectan Tubal 5000<<locked>>80%42,206 psi72%2356 fps100%
SNPE Vectan Tubal 7000<<locked>>84%41,437 psi71%2385 fps95.7%
SNPE Vectan Tubal 8000<<locked>>96%46,470 psi79%2592 fps95.4%
Somchem S335<<locked>>80%50,125 psi85%2484 fps100%
Somchem S355<<locked>>80%41,104 psi70%2428 fps99.4%
Somchem S365<<locked>>80%30,342 psi52%2283 fps98.1%
Somchem S385<<locked>>92%41,916 psi71%2477 fps95%
Vihtavuori N135<<locked>>80%46,833 psi80%2464 fps100%
Vihtavuori N140<<locked>>80%47,152 psi80%2474 fps100%
Vihtavuori N150<<locked>>80%39,030 psi66%2362 fps99.7%
Vihtavuori N160<<locked>>80%35,085 psi60%2326 fps96.4%
Vihtavuori N165<<locked>>98%43,859 psi75%2503 fps95.1%
Vihtavuori N540<<locked>>80%45,440 psi77%2467 fps100%
Vihtavuori N550<<locked>>80%34,476 psi59%2323 fps95.9%
Vihtavuori N555<<locked>>84%29,936 psi51%2274 fps95.1%
Winchester 6.5 StaBALL<<locked>>80%34,418 psi59%2303 fps98.3%
Winchester 760<<locked>>84%40,872 psi70%2477 fps95.5%
Winchester StaBALL HD<<locked>>88%27,543 psi47%2277 fps95.4%
Winchester StaBALL Match<<locked>>80%48,704 psi83%2566 fps100%
Winchester Supreme 780<<locked>>98%47,485 psi81%2569 fps95.3%

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 79 powders for 7 mm Exp. Rem. loaded with the .284 | 160gr | Sierra GameKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,789 fps; across all powders the maximum-charge window runs from 1,631 fps to 2,789 fps. Accurate 3100 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, 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-16, ReloadSwiss RS 70, Alliant Reloder-26 rank at the top here: for 7 mm Exp. Rem. with the .284 | 160gr | Sierra 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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