Load data for .284 Win. + .284 | 160gr | Sierra SBT GameKing

.284 Win. cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:160 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.17"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:66 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:11.5

Load data in caliber .284 Win. with .284 | 160gr | Sierra SBT GameKing bullet and 104 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.

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>>82%55,680 psi87%2575 fps100%
Accurate 2495<<locked>>86%55,114 psi86%2608 fps100%
Accurate 2520<<locked>>82%56,507 psi89%2671 fps100%
Accurate 2700<<locked>>88%57,014 psi89%2667 fps98.4%
Accurate 3100ᴾ<<locked>>100%45,411 psi71%2589 fps98.1%
Accurate 4064<<locked>>88%55,245 psi87%2657 fps100%
Accurate 4350<<locked>>96%55,230 psi87%2753 fps100%
ADI AR 2206H<<locked>>84%54,926 psi86%2687 fps100%
ADI AR 2208<<locked>>90%55,869 psi88%2687 fps100%
ADI AR 2209ᴾ<<locked>>100%52,895 psi83%2730 fps97.1%
ADI Benchmark 8208<<locked>>84%57,261 psi90%2680 fps100%
Alliant AR-Comp<<locked>>82%55,100 psi86%2605 fps100%
Alliant Power Pro 2000-MR<<locked>>86%54,636 psi86%2805 fps100%
Alliant Power Pro Varmintᴾ<<locked>>100%52,663 psi83%2726 fps97.1%
Alliant Reloder- TS 15.5<<locked>>90%56,173 psi88%2707 fps100%
Alliant Reloder-15<<locked>>88%56,550 psi89%2726 fps100%
Alliant Reloder-16<<locked>>98%56,043 psi88%2802 fps100%
Alliant Reloder-17<<locked>>94%57,392 psi90%2835 fps100%
Alliant Reloder-19ᴾ<<locked>>100%51,880 psi81%2720 fps97%
Alliant Reloder-23ᴾ<<locked>>100%43,004 psi67%2612 fps99.9%
Alliant Reloder-25ᴾ<<locked>>100%37,768 psi59%2520 fps96.7%
Alliant Reloder-26ᴾ<<locked>>100%48,515 psi76%2782 fps99.7%
Baschieri & Pellagri 107<<locked>>84%54,708 psi86%2703 fps100%
Bofors RP3<<locked>>90%57,130 psi90%2726 fps100%
Bofors RP7<<locked>>94%56,594 psi89%2703 fps98.6%
Hodgdon Benchmark<<locked>>82%55,230 psi87%2615 fps100%
Hodgdon BL-C2<<locked>>84%56,884 psi89%2713 fps100%
Hodgdon H380<<locked>>88%54,027 psi85%2690 fps99.8%
Hodgdon H414<<locked>>96%57,537 psi90%2799 fps99.2%
Hodgdon H4350<<locked>>92%54,404 psi85%2707 fps97.7%
Hodgdon H4895<<locked>>84%55,521 psi87%2694 fps100%
Hodgdon Hybrid 100Vᴾ<<locked>>100%55,869 psi88%2726 fps100%
Hodgdon LEVERevolution<<locked>>86%55,230 psi87%2730 fps100%
Hodgdon Superformance<<locked>>94%54,273 psi85%2785 fps98.6%
Hodgdon TrailBossᴾ<<locked>>100%35,853 psi56%1631 fps100%
Hodgdon VARGET<<locked>>86%56,681 psi89%2697 fps100%
IMR 3031<<locked>>84%55,680 psi87%2671 fps100%
IMR 4064<<locked>>88%55,361 psi87%2671 fps100%
IMR 4166 Enduron<<locked>>86%54,897 psi86%2654 fps98.8%
IMR 4350<<locked>>98%57,116 psi90%2730 fps98.7%
IMR 4451 Enduron<<locked>>92%54,940 psi86%2680 fps98.7%
IMR 4831<<locked>>98%55,637 psi87%2743 fps100%
IMR 4895<<locked>>86%54,578 psi86%2707 fps100%
IMR 8208 XBR<<locked>>84%57,261 psi90%2680 fps100%
Lovex D073.6<<locked>>84%54,897 psi86%2661 fps100%
Lovex S060<<locked>>86%57,479 psi90%2661 fps100%
Lovex S062<<locked>>88%55,361 psi87%2664 fps100%
Lovex S065<<locked>>94%54,795 psi86%2680 fps99.5%
Lovex S070<<locked>>96%55,666 psi87%2713 fps99%
Lovex S071ᴾ<<locked>>100%37,724 psi59%2444 fps96.2%
Norma 201<<locked>>86%57,246 psi90%2680 fps100%
Norma 202<<locked>>86%57,740 psi90%2674 fps100%
Norma 203B<<locked>>88%55,767 psi87%2717 fps100%
Norma 204<<locked>>96%54,331 psi85%2733 fps97.2%
Norma MRPᴾ<<locked>>100%48,269 psi76%2740 fps97.8%
Norma URP<<locked>>98%57,377 psi90%2782 fps100%
Ramshot Big Game<<locked>>88%56,594 psi89%2743 fps100%
Ramshot Hunter<<locked>>98%56,159 psi88%2785 fps99.5%
Ramshot TAC<<locked>>84%57,508 psi90%2710 fps99.8%
Ramshot Wild Boar<<locked>>84%57,130 psi90%2720 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%36,608 psi57%1673 fps100%
ReloadSwiss RS 50<<locked>>88%54,375 psi85%2677 fps99.1%
ReloadSwiss RS 52<<locked>>86%57,725 psi90%2799 fps100%
ReloadSwiss RS 60<<locked>>92%56,971 psi89%2828 fps100%
ReloadSwiss RS 62<<locked>>96%54,665 psi86%2772 fps99.9%
ReloadSwiss RS 70<<locked>>96%53,853 psi84%2799 fps99.9%
Rottweil R 901<<locked>>82%54,853 psi86%2612 fps100%
Rottweil R 902<<locked>>88%57,566 psi90%2674 fps100%
Rottweil R 903<<locked>>92%56,971 psi89%2717 fps100%
Rottweil R 904ᴾ<<locked>>100%54,853 psi86%2703 fps96.3%
Rottweil R 905ᴾ<<locked>>100%50,734 psi80%2703 fps97%
Rottweil R 907<<locked>>94%56,594 psi89%2703 fps98.6%
Shooters World Long Rifle<<locked>>94%54,795 psi86%2680 fps99.5%
Shooters World Match Rifle<<locked>>84%54,897 psi86%2661 fps100%
Shooters World Precision<<locked>>88%55,361 psi87%2664 fps100%
Shooters World SW4350<<locked>>96%55,666 psi87%2713 fps99%
SNPE Vectan SP 11<<locked>>90%55,042 psi86%2730 fps100%
SNPE Vectan SP 7<<locked>>84%55,970 psi88%2687 fps99.8%
SNPE Vectan SP 9<<locked>>86%56,913 psi89%2710 fps100%
SNPE Vectan Tubal 3000<<locked>>84%54,781 psi86%2566 fps100%
SNPE Vectan Tubal 5000<<locked>>90%55,463 psi87%2569 fps100%
SNPE Vectan Tubal 7000<<locked>>94%54,578 psi86%2631 fps98.7%
SNPE Vectan Tubal 8000ᴾ<<locked>>100%50,241 psi79%2697 fps96.9%
Somchem S335<<locked>>84%54,273 psi85%2566 fps100%
Somchem S341<<locked>>84%55,767 psi87%2680 fps100%
Somchem S355<<locked>>92%57,116 psi90%2713 fps100%
Somchem S365ᴾ<<locked>>100%55,782 psi87%2782 fps100%
Somchem S385ᴾ<<locked>>100%51,692 psi81%2684 fps97.9%
Vihtavuori N133<<locked>>84%55,143 psi86%2549 fps100%
Vihtavuori N135<<locked>>86%54,201 psi85%2592 fps100%
Vihtavuori N140<<locked>>86%54,636 psi86%2608 fps100%
Vihtavuori N150<<locked>>92%54,998 psi86%2644 fps100%
Vihtavuori N160<<locked>>96%56,507 psi89%2733 fps100%
Vihtavuori N165ᴾ<<locked>>100%44,411 psi70%2552 fps95.8%
Vihtavuori N530<<locked>>82%54,085 psi85%2635 fps100%
Vihtavuori N540<<locked>>88%56,260 psi88%2654 fps100%
Vihtavuori N550<<locked>>96%55,259 psi87%2736 fps99.9%
Vihtavuori N555ᴾ<<locked>>100%47,718 psi75%2684 fps99.8%
Winchester 6.5 StaBALL<<locked>>96%56,260 psi88%2707 fps100%
Winchester 748<<locked>>82%54,259 psi85%2680 fps100%
Winchester 760<<locked>>94%54,070 psi85%2749 fps98.8%
Winchester StaBALL HDᴾ<<locked>>100%38,580 psi60%2644 fps100%
Winchester StaBALL Match<<locked>>86%56,753 psi89%2713 fps100%
Winchester Supreme 780ᴾ<<locked>>100%48,399 psi76%2621 fps96.1%

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%52,286 psi82%2533 fps100%
Accurate 2495<<locked>>80%45,208 psi71%2474 fps100%
Accurate 2520<<locked>>80%52,808 psi83%2625 fps100%
Accurate 2700<<locked>>80%43,918 psi69%2461 fps95.9%
Accurate 3100<<locked>>92%34,621 psi54%2382 fps95.1%
Accurate 4064<<locked>>80%42,801 psi67%2477 fps100%
Accurate 4350<<locked>>80%31,763 psi50%2326 fps96%
ADI AR 2206H<<locked>>80%48,370 psi76%2585 fps99.9%
ADI AR 2208<<locked>>80%41,133 psi64%2448 fps99%
ADI AR 2209<<locked>>96%46,601 psi73%2625 fps95.6%
ADI Benchmark 8208<<locked>>80%50,430 psi79%2585 fps100%
Alliant AR-Comp<<locked>>80%51,634 psi81%2562 fps100%
Alliant Power Pro 2000-MR<<locked>>80%44,382 psi70%2635 fps99.5%
Alliant Power Pro Varmint<<locked>>96%46,543 psi73%2625 fps95.7%
Alliant Reloder- TS 15.5<<locked>>80%41,278 psi65%2474 fps99.8%
Alliant Reloder-15<<locked>>80%43,976 psi69%2530 fps99.5%
Alliant Reloder-16<<locked>>80%32,039 psi50%2343 fps96.2%
Alliant Reloder-1743.1 gr80%35,578 psi56%2457 fps99%
Alliant Reloder-19<<locked>>96%45,919 psi72%2615 fps95.6%
Alliant Reloder-23<<locked>>86%27,978 psi44%2260 fps96.1%
Alliant Reloder-25<<locked>>98%35,534 psi56%2467 fps95.8%
Alliant Reloder-26<<locked>>88%31,734 psi50%2418 fps95.2%
Baschieri & Pellagri 107<<locked>>80%47,935 psi75%2602 fps99.6%
Bofors RP3<<locked>>80%41,089 psi64%2480 fps99.8%
Bofors RP7<<locked>>84%41,640 psi65%2454 fps95.5%
Hodgdon Benchmark<<locked>>80%52,011 psi82%2569 fps100%
Hodgdon BL-C2<<locked>>80%49,777 psi78%2615 fps100%
Hodgdon H380<<locked>>80%41,611 psi65%2484 fps98.3%
Hodgdon H414<<locked>>84%38,798 psi61%2477 fps95.5%
Hodgdon H4350<<locked>>84%42,366 psi66%2503 fps95%
Hodgdon H4895<<locked>>80%48,849 psi77%2595 fps100%
Hodgdon Hybrid 100V<<locked>>80%29,443 psi46%2247 fps97%
Hodgdon LEVERevolution<<locked>>80%45,252 psi71%2579 fps100%
Hodgdon Superformance49 gr86%40,785 psi64%2546 fps95.5%
Hodgdon TrailBoss<<locked>>80%26,890 psi42%1460 fps100%
Hodgdon VARGET<<locked>>80%46,847 psi73%2549 fps100%
IMR 3031<<locked>>80%48,936 psi77%2579 fps100%
IMR 4064<<locked>>80%43,207 psi68%2477 fps99.4%
IMR 4166 Enduron<<locked>>80%45,527 psi71%2500 fps97.2%
IMR 4350<<locked>>88%41,887 psi66%2484 fps95.7%
IMR 4451 Enduron<<locked>>82%40,712 psi64%2438 fps95.8%
IMR 4831<<locked>>80%30,966 psi49%2290 fps95.8%
IMR 4895<<locked>>80%45,078 psi71%2559 fps99.8%
IMR 8208 XBR<<locked>>80%50,430 psi79%2585 fps100%
Lovex D073.6<<locked>>80%48,124 psi75%2566 fps100%
Lovex S060<<locked>>80%47,979 psi75%2520 fps99.9%
Lovex S062<<locked>>80%43,308 psi68%2480 fps100%
Lovex S065<<locked>>80%35,578 psi56%2336 fps95.8%
Lovex S070<<locked>>84%38,363 psi60%2415 fps95.5%
Lovex S071<<locked>>98%35,302 psi55%2395 fps95.4%
Norma 201<<locked>>80%47,340 psi74%2536 fps100%
Norma 202<<locked>>80%47,993 psi75%2543 fps100%
Norma 203B<<locked>>80%43,352 psi68%2520 fps99.6%
Norma 204<<locked>>92%47,268 psi74%2618 fps95.7%
Norma MRP<<locked>>94%39,247 psi62%2562 fps95.3%
Norma URP<<locked>>80%32,111 psi50%2329 fps96%
Ramshot Big Game<<locked>>80%43,163 psi68%2536 fps99.6%
Ramshot Hunter<<locked>>84%35,607 psi56%2418 fps95.3%
Ramshot TAC<<locked>>80%50,546 psi79%2608 fps99.2%
Ramshot Wild Boar<<locked>>80%50,053 psi78%2618 fps100%
ReloadSwiss RS 14<<locked>>80%27,151 psi43%1493 fps100%
ReloadSwiss RS 50<<locked>>80%41,989 psi66%2467 fps96.9%
ReloadSwiss RS 52<<locked>>80%46,992 psi74%2638 fps99.7%
ReloadSwiss RS 60<<locked>>80%37,826 psi59%2513 fps100%
ReloadSwiss RS 62<<locked>>80%31,517 psi49%2343 fps95.5%
ReloadSwiss RS 7044.9 gr82%33,533 psi53%2398 fps95.4%
Rottweil R 901<<locked>>80%51,619 psi81%2566 fps100%
Rottweil R 902<<locked>>80%45,310 psi71%2497 fps100%
Rottweil R 903<<locked>>80%38,682 psi61%2428 fps99.4%
Rottweil R 904<<locked>>98%51,474 psi81%2651 fps95.6%
Rottweil R 905<<locked>>96%44,599 psi70%2598 fps95.5%
Rottweil R 907<<locked>>84%41,640 psi65%2454 fps95.5%
Shooters World Long Rifle<<locked>>80%35,578 psi56%2336 fps95.8%
Shooters World Match Rifle<<locked>>80%48,124 psi75%2566 fps100%
Shooters World Precision<<locked>>80%43,308 psi68%2480 fps100%
Shooters World SW4350<<locked>>84%38,363 psi60%2415 fps95.5%
SNPE Vectan SP 11<<locked>>80%39,653 psi62%2477 fps99.1%
SNPE Vectan SP 7<<locked>>80%48,907 psi77%2582 fps99.3%
SNPE Vectan SP 9<<locked>>80%46,963 psi74%2562 fps99.9%
SNPE Vectan Tubal 3000<<locked>>80%48,602 psi76%2480 fps100%
SNPE Vectan Tubal 5000<<locked>>80%40,712 psi64%2359 fps100%
SNPE Vectan Tubal 7000<<locked>>84%39,740 psi62%2385 fps95.7%
SNPE Vectan Tubal 8000<<locked>>96%44,208 psi69%2592 fps95.4%
Somchem S335<<locked>>80%48,124 psi75%2480 fps100%
Somchem S341<<locked>>80%48,776 psi76%2579 fps99.9%
Somchem S355<<locked>>80%39,204 psi61%2428 fps99.4%
Somchem S365<<locked>>80%28,790 psi45%2287 fps98.1%
Somchem S385<<locked>>92%39,726 psi62%2477 fps95%
Vihtavuori N133<<locked>>80%49,023 psi77%2470 fps100%
Vihtavuori N135<<locked>>80%45,005 psi71%2467 fps100%
Vihtavuori N140<<locked>>80%45,411 psi71%2477 fps100%
Vihtavuori N150<<locked>>80%37,449 psi59%2369 fps99.8%
Vihtavuori N160<<locked>>80%33,373 psi52%2329 fps96.4%
Vihtavuori N165<<locked>>98%41,698 psi65%2500 fps95%
Vihtavuori N530<<locked>>80%50,792 psi80%2585 fps100%
Vihtavuori N540<<locked>>80%43,671 psi68%2470 fps100%
Vihtavuori N550<<locked>>80%32,880 psi52%2329 fps96%
Vihtavuori N555<<locked>>84%28,181 psi44%2277 fps95.2%
Winchester 6.5 StaBALL<<locked>>80%33,054 psi52%2310 fps98.4%
Winchester 748<<locked>>80%50,995 psi80%2635 fps100%
Winchester 760<<locked>>84%39,059 psi61%2484 fps95.6%
Winchester StaBALL HD<<locked>>88%26,179 psi41%2277 fps95.4%
Winchester StaBALL Match<<locked>>80%46,673 psi73%2566 fps100%
Winchester Supreme 780<<locked>>98%45,063 psi71%2566 fps95.2%

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 104 powders for .284 Win. loaded with the .284 | 160gr | Sierra SBT GameKing. Alliant Reloder-17 delivers the highest muzzle velocity at 2,835 fps; across all powders the maximum-charge window runs from 1,631 fps to 2,835 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .284 Win. with the .284 | 160gr | Sierra SBT 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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