Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:140 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:1:10.0
Load data in caliber .284 Win. with .284 | 140gr | Sierra GameKing bullet and 104 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.
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>> | 86% | 56,507 psi | 89% | 2766 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,114 psi | 86% | 2795 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 55,114 psi | 86% | 2792 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,101 psi | 89% | 2858 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,737 psi | 86% | 2789 fps | 96.5% |
| Accurate 4064 | <<locked>> | 92% | 55,027 psi | 86% | 2838 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,752 psi | 86% | 2917 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 88% | 55,825 psi | 87% | 2871 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 56,681 psi | 89% | 2867 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,650 psi | 86% | 2818 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,332 psi | 87% | 2795 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,594 psi | 89% | 2927 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,434 psi | 87% | 2989 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 56,434 psi | 88% | 2887 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,376 psi | 88% | 2772 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 57,290 psi | 90% | 2913 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,431 psi | 82% | 2917 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 57,537 psi | 90% | 3015 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,333 psi | 59% | 2644 fps | 97.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,727 psi | 65% | 2799 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,695 psi | 87% | 2887 fps | 99.6% |
| Bofors RP3 | <<locked>> | 94% | 57,174 psi | 90% | 2904 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 57,319 psi | 90% | 2871 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,637 psi | 89% | 2805 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 54,041 psi | 85% | 2851 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 56,028 psi | 88% | 2949 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 55,521 psi | 87% | 2815 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 56,608 psi | 89% | 2841 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,665 psi | 86% | 2864 fps | 99.1% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 57,740 psi | 90% | 2969 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 96% | 54,723 psi | 86% | 2871 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 88% | 56,434 psi | 88% | 2884 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,733 psi | 76% | 2795 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,506 psi | 87% | 2913 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 54,708 psi | 86% | 2943 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,317 psi | 55% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 57,493 psi | 90% | 2881 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 56,275 psi | 88% | 2864 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,130 psi | 88% | 2848 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,289 psi | 88% | 2828 fps | 97.6% |
| IMR 4198 | <<locked>> | 82% | 56,173 psi | 88% | 2726 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 54,056 psi | 85% | 2841 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,767 psi | 87% | 2851 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,517 psi | 81% | 2851 fps | 99.2% |
| IMR 4895 | <<locked>> | 90% | 55,201 psi | 87% | 2890 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 54,650 psi | 86% | 2818 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,781 psi | 86% | 2802 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,332 psi | 87% | 2844 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,245 psi | 87% | 2795 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 55,840 psi | 88% | 2844 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 55,201 psi | 87% | 2848 fps | 98.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,898 psi | 88% | 2877 fps | 97.8% |
| Norma 201 | <<locked>> | 88% | 54,476 psi | 85% | 2815 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,839 psi | 86% | 2815 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,434 psi | 88% | 2900 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 53,606 psi | 84% | 2900 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 92% | 56,956 psi | 89% | 2923 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,489 psi | 82% | 2894 fps | 98% |
| Ramshot TAC | <<locked>> | 86% | 55,259 psi | 87% | 2841 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,505 psi | 85% | 2854 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,767 psi | 87% | 2822 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,665 psi | 56% | 1772 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,172 psi | 85% | 2799 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,230 psi | 87% | 2848 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 53,911 psi | 84% | 2923 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 57,174 psi | 90% | 3012 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,244 psi | 85% | 2936 fps | 99.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,346 psi | 85% | 2966 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 86% | 55,622 psi | 87% | 2799 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,810 psi | 86% | 2812 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 57,029 psi | 89% | 2894 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 57,319 psi | 90% | 2871 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 98% | 55,201 psi | 87% | 2848 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,332 psi | 87% | 2844 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,840 psi | 88% | 2844 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,898 psi | 88% | 2877 fps | 97.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 57,435 psi | 90% | 2822 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,332 psi | 87% | 2907 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,377 psi | 90% | 2799 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 57,145 psi | 90% | 2871 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 54,056 psi | 85% | 2838 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,057 psi | 88% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,115 psi | 88% | 2753 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,390 psi | 87% | 2795 fps | 97.4% |
| Somchem S321 | <<locked>> | 84% | 56,159 psi | 88% | 2854 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,434 psi | 87% | 2753 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 56,855 psi | 89% | 2864 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 57,406 psi | 90% | 2894 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,080 psi | 75% | 2851 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,840 psi | 88% | 2717 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,202 psi | 88% | 2740 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,520 psi | 85% | 2779 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,535 psi | 87% | 2795 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,332 psi | 87% | 2822 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 56,521 psi | 89% | 2900 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 86% | 55,230 psi | 87% | 2822 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 57,130 psi | 90% | 2841 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,434 psi | 87% | 2907 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,669 psi | 64% | 2726 fps | 97.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,956 psi | 89% | 2881 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 55,143 psi | 86% | 2871 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 57,740 psi | 90% | 2969 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,431 psi | 52% | 2628 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 90% | 57,740 psi | 90% | 2904 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 46,992 psi | 74% | 2631 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,430 psi | 81% | 2743 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,726 psi | 62% | 2556 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,557 psi | 73% | 2703 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,790 psi | 75% | 2674 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 37,550 psi | 59% | 2546 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 36,056 psi | 56% | 2575 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 43,337 psi | 68% | 2657 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 36,869 psi | 58% | 2507 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,411 psi | 71% | 2671 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 45,527 psi | 71% | 2661 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 53,055 psi | 83% | 2874 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,146 psi | 61% | 2677 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,303 psi | 57% | 2530 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,881 psi | 83% | 2726 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,117 psi | 61% | 2592 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,303 psi | 57% | 2589 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 31,386 psi | 49% | 2490 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,256 psi | 49% | 2484 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,885 psi | 61% | 2733 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,482 psi | 67% | 2661 fps | 97.7% |
| Bofors RP3 | <<locked>> | 80% | 35,839 psi | 56% | 2530 fps | 98% |
| Bofors RP7 | <<locked>> | 92% | 47,543 psi | 75% | 2710 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,253 psi | 74% | 2661 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,961 psi | 69% | 2687 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,704 psi | 76% | 2831 fps | 99.2% |
| Hodgdon H322 | <<locked>> | 80% | 52,025 psi | 82% | 2769 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,924 psi | 83% | 2792 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,883 psi | 58% | 2536 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 92% | 44,208 psi | 69% | 2740 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 94% | 51,445 psi | 81% | 2818 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 43,714 psi | 69% | 2671 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 31,198 psi | 49% | 2431 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,581 psi | 62% | 2638 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 94% | 47,601 psi | 75% | 2822 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,339 psi | 41% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,061 psi | 66% | 2625 fps | 98.9% |
| IMR 3031 | <<locked>> | 80% | 43,178 psi | 68% | 2667 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,696 psi | 61% | 2543 fps | 97.3% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,615 psi | 73% | 2667 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 53,011 psi | 83% | 2687 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 47,776 psi | 75% | 2740 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,470 psi | 73% | 2694 fps | 95.5% |
| IMR 4831 | <<locked>> | 88% | 34,882 psi | 55% | 2533 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 40,045 psi | 63% | 2625 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 45,411 psi | 71% | 2671 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 51,488 psi | 81% | 2756 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,235 psi | 66% | 2638 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 43,526 psi | 68% | 2598 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 38,624 psi | 61% | 2549 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 40,596 psi | 64% | 2589 fps | 95.5% |
| Lovex S070 | <<locked>> | 92% | 43,613 psi | 68% | 2667 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 42,453 psi | 67% | 2612 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 42,612 psi | 67% | 2621 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,479 psi | 60% | 2582 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 36,390 psi | 57% | 2579 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 37,826 psi | 59% | 2589 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 94% | 43,323 psi | 68% | 2730 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 45,339 psi | 71% | 2671 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,788 psi | 70% | 2694 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,907 psi | 77% | 2717 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,484 psi | 42% | 1581 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,894 psi | 80% | 2753 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,380 psi | 66% | 2625 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,799 psi | 64% | 2690 fps | 97.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,446 psi | 52% | 2559 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,810 psi | 56% | 2592 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,740 psi | 61% | 2657 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 46,528 psi | 73% | 2657 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,335 psi | 63% | 2562 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 33,895 psi | 53% | 2480 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 92% | 47,543 psi | 75% | 2710 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,596 psi | 64% | 2589 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,235 psi | 66% | 2638 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 38,624 psi | 61% | 2549 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 92% | 43,613 psi | 68% | 2667 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 53,635 psi | 84% | 2769 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,722 psi | 54% | 2523 fps | 96.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 53,780 psi | 84% | 2749 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,627 psi | 68% | 2648 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,771 psi | 65% | 2625 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,932 psi | 69% | 2572 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,448 psi | 57% | 2438 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,658 psi | 72% | 2638 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 49,066 psi | 77% | 2749 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,424 psi | 68% | 2572 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,265 psi | 68% | 2644 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 34,708 psi | 54% | 2484 fps | 97.2% |
| Somchem S365 | <<locked>> | 82% | 26,818 psi | 42% | 2359 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 49,574 psi | 78% | 2631 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,193 psi | 69% | 2566 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,798 psi | 62% | 2552 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,567 psi | 64% | 2562 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,098 psi | 52% | 2425 fps | 98% |
| Vihtavuori N160 | <<locked>> | 86% | 35,520 psi | 56% | 2523 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 45,324 psi | 71% | 2661 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 38,957 psi | 61% | 2549 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 37,347 psi | 59% | 2579 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 94% | 33,446 psi | 52% | 2562 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,386 psi | 49% | 2398 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 44,976 psi | 70% | 2710 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 44,483 psi | 70% | 2746 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,473 psi | 49% | 2566 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,205 psi | 65% | 2631 fps | 98.8% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 119 powders for .284 Win. loaded with the .284 | 140gr | Sierra GameKing. Alliant Reloder-17 delivers the highest muzzle velocity at 3,015 fps; across all powders the maximum-charge window runs from 1,732 fps to 3,015 fps. Accurate 3100 gives the best case fill at 100 %, and 119 of the 119 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.