Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:150 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:.284 Win. load data
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:1:12.0
Load data in caliber .284 Win. with .284 | 150gr | Sierra GameKing bullet and 101 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Winchester 760.
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"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 57,638 psi | 90% | 2694 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,681 psi | 89% | 2723 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,578 psi | 86% | 2740 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,361 psi | 87% | 2730 fps | 97.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,598 psi | 68% | 2638 fps | 97.2% |
| Accurate 4064 | <<locked>> | 90% | 56,637 psi | 89% | 2769 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,594 psi | 89% | 2864 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 56,536 psi | 89% | 2802 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,433 psi | 85% | 2756 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,256 psi | 80% | 2785 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,593 psi | 87% | 2753 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,956 psi | 89% | 2723 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,594 psi | 89% | 2927 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,520 psi | 85% | 2779 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,955 psi | 86% | 2799 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,522 psi | 90% | 2917 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,172 psi | 86% | 2897 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,256 psi | 79% | 2776 fps | 96% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,292 psi | 65% | 2664 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,412 psi | 73% | 2828 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,681 psi | 89% | 2822 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 55,288 psi | 87% | 2795 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,897 psi | 86% | 2766 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,043 psi | 89% | 2730 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,230 psi | 87% | 2785 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,188 psi | 90% | 2881 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,072 psi | 88% | 2808 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 96% | 55,680 psi | 87% | 2861 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 94% | 56,275 psi | 88% | 2825 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 86% | 57,101 psi | 89% | 2808 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,027 psi | 85% | 2792 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,782 psi | 89% | 2844 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,057 psi | 88% | 2897 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,607 psi | 56% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,940 psi | 86% | 2766 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,450 psi | 90% | 2789 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,334 psi | 90% | 2789 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,884 psi | 89% | 2769 fps | 98.6% |
| IMR 4350 | <<locked>> | 98% | 55,172 psi | 86% | 2789 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,666 psi | 89% | 2795 fps | 98.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,913 psi | 89% | 2851 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 56,376 psi | 88% | 2828 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,593 psi | 87% | 2753 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,666 psi | 89% | 2776 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,941 psi | 88% | 2730 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,232 psi | 90% | 2782 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,347 psi | 88% | 2789 fps | 99.4% |
| Lovex S070 | <<locked>> | 98% | 57,435 psi | 90% | 2828 fps | 98.9% |
| Norma 201 | <<locked>> | 86% | 55,521 psi | 87% | 2749 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,956 psi | 88% | 2746 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,537 psi | 90% | 2835 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,057 psi | 88% | 2844 fps | 96.9% |
| Norma MRPᴾ | <<locked>> | 100% | 46,427 psi | 73% | 2789 fps | 96.7% |
| Norma URP | <<locked>> | 98% | 55,579 psi | 87% | 2851 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 54,679 psi | 86% | 2812 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,201 psi | 85% | 2848 fps | 99% |
| Ramshot TAC | <<locked>> | 84% | 55,666 psi | 87% | 2772 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,535 psi | 87% | 2792 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,173 psi | 88% | 2753 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,303 psi | 57% | 1732 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,014 psi | 88% | 2789 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,521 psi | 87% | 2864 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,853 psi | 86% | 2894 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,405 psi | 88% | 2887 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,753 psi | 87% | 2917 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 56,405 psi | 88% | 2726 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,811 psi | 87% | 2746 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,085 psi | 86% | 2785 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,008 psi | 77% | 2756 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 94% | 54,897 psi | 86% | 2766 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,347 psi | 88% | 2789 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,666 psi | 89% | 2776 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,232 psi | 90% | 2782 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,435 psi | 90% | 2828 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,855 psi | 89% | 2848 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,375 psi | 85% | 2756 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,027 psi | 86% | 2776 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,797 psi | 89% | 2684 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,246 psi | 90% | 2684 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,637 psi | 89% | 2746 fps | 98.5% |
| Somchem S321 | <<locked>> | 82% | 56,811 psi | 89% | 2782 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,318 psi | 88% | 2684 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 53,809 psi | 84% | 2743 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,085 psi | 86% | 2779 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,635 psi | 84% | 2851 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,545 psi | 78% | 2736 fps | 96.9% |
| Vihtavuori N130 | <<locked>> | 82% | 56,420 psi | 88% | 2641 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,072 psi | 89% | 2667 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,927 psi | 88% | 2710 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,579 psi | 89% | 2726 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,666 psi | 89% | 2759 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,505 psi | 85% | 2795 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 56,173 psi | 88% | 2753 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,723 psi | 86% | 2723 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,869 psi | 89% | 2851 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,861 psi | 72% | 2743 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,447 psi | 85% | 2772 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,405 psi | 88% | 2802 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,680 psi | 87% | 2861 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,130 psi | 58% | 2684 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,027 psi | 86% | 2782 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 50,981 psi | 80% | 2608 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,758 psi | 69% | 2543 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,024 psi | 80% | 2690 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,469 psi | 71% | 2569 fps | 95.6% |
| Accurate 3100 | <<locked>> | 96% | 38,029 psi | 60% | 2530 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 41,365 psi | 65% | 2539 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,576 psi | 51% | 2425 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 46,963 psi | 74% | 2651 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 40,016 psi | 63% | 2507 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 98% | 47,906 psi | 75% | 2726 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,066 psi | 77% | 2654 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,719 psi | 78% | 2631 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,844 psi | 67% | 2690 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,755 psi | 62% | 2526 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,641 psi | 67% | 2592 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,837 psi | 51% | 2438 fps | 95.7% |
| Alliant Reloder-17 | 43.9 gr | 80% | 34,301 psi | 54% | 2503 fps | 98.1% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,050 psi | 74% | 2720 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,616 psi | 45% | 2349 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,070 psi | 55% | 2579 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,325 psi | 73% | 2661 fps | 99.1% |
| Bofors RP3 | <<locked>> | 80% | 39,668 psi | 62% | 2536 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 42,902 psi | 67% | 2559 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,778 psi | 80% | 2641 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,080 psi | 75% | 2677 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,447 psi | 84% | 2828 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 40,263 psi | 63% | 2539 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 86% | 39,914 psi | 63% | 2582 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 88% | 46,456 psi | 73% | 2661 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 47,427 psi | 74% | 2661 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,311 psi | 44% | 2287 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,656 psi | 68% | 2638 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 42,293 psi | 66% | 2654 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,600 psi | 42% | 1509 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,556 psi | 71% | 2615 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 47,442 psi | 74% | 2651 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,047 psi | 66% | 2539 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,367 psi | 70% | 2559 fps | 96.2% |
| IMR 4350 | <<locked>> | 90% | 43,207 psi | 68% | 2585 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,959 psi | 66% | 2539 fps | 95.4% |
| IMR 4831 | <<locked>> | 82% | 31,807 psi | 50% | 2388 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 43,685 psi | 68% | 2621 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 49,066 psi | 77% | 2654 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,514 psi | 73% | 2631 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,818 psi | 73% | 2585 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 42,076 psi | 66% | 2543 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 36,709 psi | 58% | 2438 fps | 95.5% |
| Lovex S070 | <<locked>> | 86% | 39,624 psi | 62% | 2520 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 46,064 psi | 72% | 2602 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,354 psi | 73% | 2605 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,003 psi | 66% | 2579 fps | 99.2% |
| Norma 204 | <<locked>> | 94% | 48,878 psi | 77% | 2730 fps | 95.4% |
| Norma MRP | <<locked>> | 98% | 43,366 psi | 68% | 2730 fps | 95.9% |
| Norma URP | <<locked>> | 82% | 33,040 psi | 52% | 2428 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 41,626 psi | 65% | 2595 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 39,102 psi | 61% | 2572 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 48,994 psi | 77% | 2667 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,718 psi | 76% | 2687 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,765 psi | 83% | 2703 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,050 psi | 42% | 1549 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,669 psi | 64% | 2523 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,295 psi | 71% | 2697 fps | 99.3% |
| ReloadSwiss RS 60 | 43.9 gr | 80% | 36,477 psi | 57% | 2566 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,401 psi | 51% | 2441 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 34,679 psi | 54% | 2500 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 50,053 psi | 78% | 2635 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,845 psi | 69% | 2556 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,144 psi | 58% | 2480 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 98% | 45,672 psi | 72% | 2700 fps | 95% |
| Rottweil R 907 | <<locked>> | 86% | 42,902 psi | 67% | 2559 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 82% | 36,709 psi | 58% | 2438 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,514 psi | 73% | 2631 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,076 psi | 66% | 2543 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 39,624 psi | 62% | 2520 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,261 psi | 60% | 2533 fps | 98.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,543 psi | 75% | 2648 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,542 psi | 71% | 2621 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,166 psi | 74% | 2549 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,421 psi | 62% | 2421 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 40,843 psi | 64% | 2484 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 53,229 psi | 83% | 2733 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,891 psi | 73% | 2549 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,166 psi | 74% | 2638 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 38,014 psi | 60% | 2487 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 27,746 psi | 43% | 2329 fps | 97% |
| Somchem S385 | <<locked>> | 96% | 43,497 psi | 68% | 2628 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 53,098 psi | 83% | 2598 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,572 psi | 75% | 2539 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,410 psi | 68% | 2533 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,859 psi | 69% | 2543 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,027 psi | 56% | 2418 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 32,198 psi | 50% | 2375 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 49,356 psi | 77% | 2654 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,337 psi | 66% | 2533 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 33,939 psi | 53% | 2431 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 88% | 30,821 psi | 48% | 2425 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,952 psi | 50% | 2356 fps | 97.4% |
| Winchester 748 | <<locked>> | 80% | 49,298 psi | 77% | 2700 fps | 100% |
| Winchester 760 | 46.3 gr | 86% | 40,190 psi | 63% | 2589 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,732 psi | 45% | 2431 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,092 psi | 71% | 2628 fps | 99.8% |
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.
This overview compares 101 powders for .284 Win. loaded with the .284 | 150gr | Sierra GameKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,927 fps; across all powders the maximum-charge window runs from 1,690 fps to 2,927 fps. Accurate 3100 gives the best case fill at 100 %, and 101 of the 101 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 150.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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-17, ReloadSwiss RS 60, Winchester 760 rank at the top here: for .284 Win. 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.