Load data for 7 mm-08 Rem. + .284 | 150gr | Sierra GameKing

7 mm-08 Rem. cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:150 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.035"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:55 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:60,191 psi
Recommended Twist Rate:1:12.0

Load data in caliber 7 mm-08 Rem. with .284 | 150gr | Sierra GameKing bullet and 99 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and ReloadSwiss RS 52.

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 2015<<locked>>86%52,112 psi87%2559 fps100%
Accurate 2460<<locked>>84%53,664 psi89%2628 fps100%
Accurate 2495<<locked>>92%52,794 psi88%2618 fps100%
Accurate 2520<<locked>>86%51,692 psi86%2638 fps100%
Accurate 4064<<locked>>94%52,736 psi88%2661 fps100%
Accurate 4350ᴾ<<locked>>100%47,935 psi80%2664 fps98.3%
ADI AR 2206H<<locked>>90%54,201 psi90%2690 fps99.7%
ADI AR 2208<<locked>>94%52,054 psi86%2641 fps99.1%
ADI Benchmark 8208<<locked>>88%53,432 psi89%2648 fps100%
Alliant AR-Comp<<locked>>88%53,258 psi88%2628 fps100%
Alliant Power Pro 1200-R<<locked>>82%51,764 psi86%2697 fps99.8%
Alliant Power Pro 2000-MR<<locked>>92%53,359 psi89%2792 fps99.4%
Alliant Reloder- TS 15.5<<locked>>94%51,256 psi85%2661 fps99.8%
Alliant Reloder-10x<<locked>>82%51,793 psi86%2562 fps100%
Alliant Reloder-15<<locked>>92%52,025 psi86%2680 fps99.3%
Alliant Reloder-16ᴾ<<locked>>100%47,630 psi79%2674 fps98.4%
Alliant Reloder-17<<locked>>98%51,561 psi86%2766 fps99.8%
Baschieri & Pellagri 106<<locked>>82%53,722 psi89%2546 fps100%
Baschieri & Pellagri 107<<locked>>90%53,708 psi89%2703 fps99.1%
Bofors RP3<<locked>>94%51,314 psi85%2671 fps99.9%
Bofors RP7<<locked>>98%52,156 psi87%2631 fps95.6%
Hodgdon Benchmark<<locked>>86%52,533 psi87%2592 fps100%
Hodgdon BL-C2<<locked>>88%52,460 psi87%2680 fps100%
Hodgdon CFE223<<locked>>86%54,172 psi90%2766 fps99.5%
Hodgdon H322<<locked>>84%54,143 psi90%2644 fps100%
Hodgdon H335<<locked>>82%51,503 psi86%2621 fps100%
Hodgdon H380<<locked>>94%52,953 psi88%2684 fps98.5%
Hodgdon H414ᴾ<<locked>>100%51,605 psi86%2717 fps96.4%
Hodgdon H4895<<locked>>88%51,314 psi85%2651 fps99.7%
Hodgdon Hybrid 100Vᴾ<<locked>>100%43,700 psi73%2562 fps98.9%
Hodgdon LEVERevolution<<locked>>92%53,403 psi89%2730 fps100%
Hodgdon Superformanceᴾ<<locked>>100%52,750 psi88%2746 fps95.8%
Hodgdon TrailBossᴾ<<locked>>100%34,896 psi58%1604 fps100%
Hodgdon VARGET<<locked>>90%52,794 psi88%2657 fps99.8%
IMR 3031<<locked>>90%54,273 psi90%2690 fps100%
IMR 4064<<locked>>92%51,401 psi85%2625 fps99.2%
IMR 4166 Enduron<<locked>>90%51,967 psi86%2602 fps96.2%
IMR 4198<<locked>>82%52,214 psi87%2526 fps100%
IMR 4451 Enduron<<locked>>98%54,230 psi90%2667 fps96.6%
IMR 4831ᴾ<<locked>>100%45,716 psi76%2612 fps97.9%
IMR 4895<<locked>>92%53,345 psi89%2710 fps99.7%
IMR 8208 XBR<<locked>>88%53,432 psi89%2648 fps100%
Lovex D073.5<<locked>>84%53,751 psi89%2638 fps100%
Lovex D073.6<<locked>>90%53,330 psi89%2671 fps100%
Lovex S060<<locked>>90%54,273 psi90%2621 fps99.7%
Lovex S062<<locked>>94%53,969 psi90%2667 fps100%
Lovex S065ᴾ<<locked>>100%53,272 psi89%2661 fps97.9%
Lovex S070ᴾ<<locked>>100%50,314 psi84%2635 fps96.2%
Norma 201<<locked>>90%52,866 psi88%2638 fps100%
Norma 202<<locked>>90%53,577 psi89%2648 fps100%
Norma 203B<<locked>>92%51,198 psi85%2667 fps99.5%
Norma URPᴾ<<locked>>100%47,688 psi79%2657 fps98.1%
Ramshot Big Game<<locked>>92%51,126 psi85%2687 fps99.4%
Ramshot Hunterᴾ<<locked>>100%47,239 psi78%2651 fps96.2%
Ramshot TAC<<locked>>88%54,041 psi90%2664 fps98.1%
Ramshot Wild Boar<<locked>>88%53,156 psi88%2680 fps99.6%
Ramshot X-Terminator<<locked>>84%51,430 psi85%2605 fps99.4%
ReloadSwiss RS 14ᴾ<<locked>>100%35,273 psi59%1644 fps100%
ReloadSwiss RS 40<<locked>>84%53,258 psi88%2635 fps100%
ReloadSwiss RS 50<<locked>>94%53,316 psi89%2661 fps97.2%
ReloadSwiss RS 52<<locked>>90%51,692 psi86%2736 fps99.3%
ReloadSwiss RS 60<<locked>>96%51,213 psi85%2769 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%47,587 psi79%2684 fps97.9%
ReloadSwiss RS 70ᴾ<<locked>>100%48,660 psi81%2707 fps97.5%
Rottweil R 901<<locked>>88%54,273 psi90%2628 fps100%
Rottweil R 902<<locked>>92%53,287 psi89%2635 fps100%
Rottweil R 903<<locked>>96%51,184 psi85%2661 fps99.8%
Rottweil R 907<<locked>>98%52,156 psi87%2631 fps95.6%
Shooters World Long Rifleᴾ<<locked>>100%53,272 psi89%2661 fps97.9%
Shooters World Match Rifle<<locked>>90%53,330 psi89%2671 fps100%
Shooters World Precision<<locked>>94%53,969 psi90%2667 fps100%
Shooters World SW4350ᴾ<<locked>>100%50,314 psi84%2635 fps96.2%
Shooters World Tactical Rifle<<locked>>82%52,765 psi88%2602 fps99.9%
SNPE Vectan SP 11<<locked>>96%52,765 psi88%2717 fps99.6%
SNPE Vectan SP 3<<locked>>82%52,750 psi88%2585 fps100%
SNPE Vectan SP 7<<locked>>88%52,098 psi87%2638 fps98.3%
SNPE Vectan SP 9<<locked>>90%52,576 psi87%2664 fps99.6%
SNPE Vectan Tubal 3000<<locked>>88%51,808 psi86%2546 fps100%
SNPE Vectan Tubal 5000<<locked>>94%51,387 psi85%2543 fps100%
SNPE Vectan Tubal 7000ᴾ<<locked>>100%53,664 psi89%2615 fps96.5%
Somchem S321<<locked>>84%51,227 psi85%2635 fps100%
Somchem S335<<locked>>90%53,969 psi90%2585 fps100%
Somchem S341<<locked>>88%51,532 psi86%2635 fps99.4%
Somchem S355<<locked>>96%51,721 psi86%2661 fps99.7%
Somchem S365ᴾ<<locked>>100%42,685 psi71%2612 fps99.6%
Vihtavuori N130<<locked>>84%51,677 psi86%2516 fps100%
Vihtavuori N133<<locked>>88%51,851 psi86%2533 fps100%
Vihtavuori N135<<locked>>92%52,692 psi88%2608 fps100%
Vihtavuori N140<<locked>>92%53,693 psi89%2621 fps100%
Vihtavuori N150<<locked>>98%53,417 psi89%2648 fps100%
Vihtavuori N160ᴾ<<locked>>100%50,328 psi84%2657 fps98.4%
Vihtavuori N530<<locked>>88%53,838 psi89%2648 fps100%
Vihtavuori N540<<locked>>92%52,127 psi87%2625 fps100%
Vihtavuori N550ᴾ<<locked>>100%49,487 psi82%2664 fps98.2%
Vihtavuori N555ᴾ<<locked>>100%35,737 psi59%2487 fps95.9%
Winchester 6.5 StaBALLᴾ<<locked>>100%51,488 psi86%2648 fps99.8%
Winchester 748<<locked>>88%53,142 psi88%2690 fps100%
Winchester 760ᴾ<<locked>>100%51,605 psi86%2717 fps96.4%
Winchester StaBALL Match<<locked>>90%52,286 psi87%2674 fps99.8%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%43,062 psi72%2428 fps100%
Accurate 2460<<locked>>80%46,847 psi78%2530 fps100%
Accurate 2495<<locked>>80%35,737 psi59%2352 fps100%
Accurate 2520<<locked>>80%42,119 psi70%2487 fps99.9%
Accurate 4064<<locked>>80%33,750 psi56%2339 fps99.4%
Accurate 4350<<locked>>92%36,419 psi61%2454 fps95.4%
ADI AR 2206H<<locked>>80%39,755 psi66%2444 fps97.6%
ADI AR 2208<<locked>>82%35,969 psi60%2349 fps95.8%
ADI Benchmark 8208<<locked>>80%41,742 psi69%2457 fps99%
Alliant AR-Comp<<locked>>80%40,915 psi68%2454 fps100%
Alliant Power Pro 1200-R<<locked>>80%48,443 psi80%2644 fps99.5%
Alliant Power Pro 2000-MR37.7 gr80%35,766 psi59%2451 fps95.1%
Alliant Reloder- TS 15.5<<locked>>80%32,953 psi55%2320 fps96.7%
Alliant Reloder-10x<<locked>>80%48,849 psi81%2523 fps100%
Alliant Reloder-15<<locked>>80%35,592 psi59%2379 fps95.9%
Alliant Reloder-16<<locked>>92%37,246 psi62%2467 fps95.5%
Alliant Reloder-17<<locked>>84%32,532 psi54%2382 fps95.6%
Baschieri & Pellagri 106<<locked>>80%50,589 psi84%2503 fps100%
Baschieri & Pellagri 107<<locked>>80%38,609 psi64%2441 fps96.2%
Bofors RP3<<locked>>80%32,358 psi54%2320 fps96.6%
Bofors RP7<<locked>>96%49,255 psi82%2589 fps95%
Hodgdon Benchmark<<locked>>80%43,569 psi72%2451 fps99.5%
Hodgdon BL-C2<<locked>>80%39,958 psi66%2474 fps99.2%
Hodgdon CFE223<<locked>>80%43,859 psi73%2598 fps98.1%
Hodgdon H322<<locked>>80%47,427 psi79%2552 fps100%
Hodgdon H335<<locked>>80%48,283 psi80%2575 fps100%
Hodgdon H380<<locked>>84%38,232 psi64%2428 fps95.3%
Hodgdon H414<<locked>>98%48,385 psi80%2664 fps95.6%
Hodgdon H4895<<locked>>80%40,030 psi67%2457 fps98.2%
Hodgdon Hybrid 100V<<locked>>90%31,981 psi53%2316 fps95.5%
Hodgdon LEVERevolution<<locked>>80%35,911 psi60%2421 fps97.7%
Hodgdon Superformance<<locked>>98%49,400 psi82%2690 fps95%
Hodgdon TrailBoss<<locked>>80%25,860 psi43%1430 fps100%
Hodgdon VARGET<<locked>>80%38,566 psi64%2411 fps97.8%
IMR 3031<<locked>>80%39,117 psi65%2461 fps100%
IMR 4064<<locked>>80%35,317 psi59%2329 fps95.9%
IMR 4166 Enduron<<locked>>88%48,805 psi81%2552 fps95.5%
IMR 4198<<locked>>80%49,197 psi82%2484 fps100%
IMR 4451 Enduron<<locked>>94%48,196 psi80%2572 fps95.3%
IMR 4831<<locked>>92%35,288 psi59%2411 fps95.1%
IMR 4895<<locked>>80%36,419 psi61%2408 fps96.9%
IMR 8208 XBR<<locked>>80%41,742 psi69%2457 fps99%
Lovex D073.5<<locked>>80%46,920 psi78%2539 fps99.9%
Lovex D073.6<<locked>>80%38,319 psi64%2428 fps99.5%
Lovex S060<<locked>>80%40,219 psi67%2388 fps97.8%
Lovex S062<<locked>>80%35,128 psi58%2339 fps97.7%
Lovex S065<<locked>>92%41,655 psi69%2467 fps95.3%
Lovex S070<<locked>>98%47,514 psi79%2589 fps95.6%
Norma 201<<locked>>80%38,914 psi65%2402 fps98.6%
Norma 202<<locked>>80%39,001 psi65%2415 fps99.8%
Norma 203B<<locked>>80%34,983 psi58%2369 fps96.4%
Norma URP<<locked>>92%36,985 psi61%2454 fps95.4%
Ramshot Big Game<<locked>>80%34,374 psi57%2375 fps95.8%
Ramshot Hunter<<locked>>98%44,367 psi74%2602 fps95.5%
Ramshot TAC<<locked>>80%41,437 psi69%2451 fps95.4%
Ramshot Wild Boar<<locked>>80%40,683 psi68%2474 fps97.8%
Ramshot X-Terminator<<locked>>80%45,208 psi75%2503 fps98.5%
ReloadSwiss RS 14<<locked>>80%26,310 psi44%1470 fps100%
ReloadSwiss RS 40<<locked>>80%46,847 psi78%2539 fps100%
ReloadSwiss RS 50<<locked>>88%44,121 psi73%2510 fps95.1%
ReloadSwiss RS 5236.5 gr80%36,622 psi61%2464 fps96.2%
ReloadSwiss RS 6037.1 gr80%30,327 psi50%2336 fps97.3%
ReloadSwiss RS 62<<locked>>94%39,044 psi65%2526 fps95.8%
ReloadSwiss RS 70<<locked>>96%42,496 psi71%2589 fps95.8%
Rottweil R 901<<locked>>80%42,728 psi71%2451 fps100%
Rottweil R 902<<locked>>80%37,028 psi62%2359 fps98.2%
Rottweil R 903<<locked>>80%30,414 psi51%2267 fps95.5%
Rottweil R 907<<locked>>96%49,255 psi82%2589 fps95%
Shooters World Long Rifle<<locked>>92%41,655 psi69%2467 fps95.3%
Shooters World Match Rifle<<locked>>80%38,319 psi64%2428 fps99.5%
Shooters World Precision<<locked>>80%35,128 psi58%2339 fps97.7%
Shooters World SW4350<<locked>>98%47,514 psi79%2589 fps95.6%
Shooters World Tactical Rifle<<locked>>80%49,487 psi82%2556 fps99.7%
SNPE Vectan SP 11<<locked>>82%33,533 psi56%2362 fps95.6%
SNPE Vectan SP 3<<locked>>80%49,719 psi83%2543 fps100%
SNPE Vectan SP 7<<locked>>80%39,682 psi66%2428 fps95.6%
SNPE Vectan SP 9<<locked>>80%38,087 psi63%2411 fps97.2%
SNPE Vectan Tubal 3000<<locked>>80%40,654 psi68%2372 fps99.9%
SNPE Vectan Tubal 5000<<locked>>80%33,460 psi56%2247 fps99.7%
SNPE Vectan Tubal 7000<<locked>>96%46,789 psi78%2513 fps95.1%
Somchem S321<<locked>>80%44,831 psi74%2533 fps99.6%
Somchem S335<<locked>>80%40,001 psi66%2372 fps100%
Somchem S341<<locked>>80%39,320 psi65%2428 fps97.4%
Somchem S355<<locked>>80%31,488 psi52%2277 fps95.6%
Somchem S365<<locked>>88%29,153 psi48%2303 fps95.9%
Vihtavuori N130<<locked>>80%46,064 psi77%2438 fps100%
Vihtavuori N133<<locked>>80%40,843 psi68%2372 fps100%
Vihtavuori N135<<locked>>80%36,187 psi60%2352 fps100%
Vihtavuori N140<<locked>>80%36,883 psi61%2356 fps99.8%
Vihtavuori N150<<locked>>80%29,834 psi50%2221 fps96.5%
Vihtavuori N160<<locked>>90%36,535 psi61%2408 fps95%
Vihtavuori N530<<locked>>80%41,742 psi69%2454 fps99.1%
Vihtavuori N540<<locked>>80%35,331 psi59%2343 fps99.4%
Vihtavuori N550<<locked>>92%38,174 psi63%2464 fps95.5%
Vihtavuori N555<<locked>>98%33,475 psi56%2431 fps95%
Winchester 6.5 StaBALL<<locked>>86%32,460 psi54%2290 fps95.7%
Winchester 748<<locked>>80%40,625 psi67%2490 fps99.4%
Winchester 760<<locked>>98%48,385 psi80%2664 fps95.6%
Winchester StaBALL Match<<locked>>80%37,347 psi62%2415 fps97.6%

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 99 powders for 7 mm-08 Rem. loaded with the .284 | 150gr | Sierra GameKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,792 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,792 fps. Accurate 4350 gives the best case fill at 100 %, and 99 of the 99 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (415 MPa), the top charges use 58–90 %, 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. Accurate 4350, Alliant Reloder-16, Hodgdon H414 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 7 mm-08 Rem. with the .284 | 150gr | 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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