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:1:10.5
Load data in caliber .284 Win. with .284 | 140gr | Sierra Tipped 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 Alliant Power Pro 2000-MR, Alliant Reloder-17 and ReloadSwiss RS 60.
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% | 56,739 psi | 89% | 2772 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,303 psi | 87% | 2799 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 55,347 psi | 87% | 2795 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,276 psi | 90% | 2864 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,868 psi | 86% | 2792 fps | 96.6% |
| Accurate 4064 | <<locked>> | 92% | 55,245 psi | 87% | 2841 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,868 psi | 86% | 2920 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 88% | 56,072 psi | 88% | 2877 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 56,811 psi | 89% | 2871 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 55,172 psi | 86% | 2828 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,593 psi | 87% | 2802 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,855 psi | 89% | 2933 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,579 psi | 87% | 2992 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 56,971 psi | 89% | 2897 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,608 psi | 89% | 2779 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 57,435 psi | 90% | 2917 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,924 psi | 83% | 2923 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 57,682 psi | 90% | 3018 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,681 psi | 59% | 2654 fps | 98% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,814 psi | 66% | 2805 fps | 97% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,854 psi | 88% | 2890 fps | 99.6% |
| Bofors RP3 | <<locked>> | 94% | 57,740 psi | 90% | 2913 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 54,375 psi | 85% | 2828 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,898 psi | 89% | 2808 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 54,230 psi | 85% | 2854 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 56,275 psi | 88% | 2956 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 55,753 psi | 87% | 2822 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 56,855 psi | 89% | 2848 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,853 psi | 86% | 2871 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 98% | 54,317 psi | 85% | 2917 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 96% | 55,216 psi | 87% | 2881 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 88% | 56,608 psi | 89% | 2887 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,907 psi | 77% | 2799 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,651 psi | 87% | 2913 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 55,187 psi | 86% | 2953 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,389 psi | 55% | 1736 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 57,653 psi | 90% | 2884 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 56,507 psi | 89% | 2867 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,318 psi | 88% | 2854 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,492 psi | 89% | 2835 fps | 97.7% |
| IMR 4198 | <<locked>> | 82% | 56,405 psi | 88% | 2733 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 54,201 psi | 85% | 2848 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 96% | 56,231 psi | 88% | 2858 fps | 97.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,996 psi | 81% | 2861 fps | 99.2% |
| IMR 4895 | <<locked>> | 90% | 55,405 psi | 87% | 2897 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 55,172 psi | 86% | 2828 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 55,347 psi | 87% | 2815 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,492 psi | 87% | 2848 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,782 psi | 87% | 2805 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 55,999 psi | 88% | 2848 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 55,361 psi | 87% | 2851 fps | 98.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 56,057 psi | 88% | 2881 fps | 97.9% |
| Norma 201 | <<locked>> | 88% | 54,723 psi | 86% | 2822 fps | 100% |
| Norma 202 | <<locked>> | 88% | 55,027 psi | 86% | 2818 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,594 psi | 89% | 2904 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 53,809 psi | 84% | 2907 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 92% | 57,450 psi | 90% | 2930 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,968 psi | 83% | 2904 fps | 98.1% |
| Ramshot TAC | <<locked>> | 86% | 55,448 psi | 87% | 2844 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,027 psi | 86% | 2864 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,912 psi | 88% | 2828 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,752 psi | 56% | 1775 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,375 psi | 85% | 2805 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,361 psi | 87% | 2851 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 54,172 psi | 85% | 2927 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 57,377 psi | 90% | 3015 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,331 psi | 85% | 2940 fps | 99.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,418 psi | 85% | 2969 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 86% | 55,854 psi | 88% | 2805 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 55,027 psi | 86% | 2815 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 57,188 psi | 90% | 2900 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 54,375 psi | 85% | 2828 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 98% | 55,361 psi | 87% | 2851 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,492 psi | 87% | 2848 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,999 psi | 88% | 2848 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 56,057 psi | 88% | 2881 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 57,609 psi | 90% | 2828 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,477 psi | 87% | 2910 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,261 psi | 90% | 2795 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 57,334 psi | 90% | 2874 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 54,230 psi | 85% | 2844 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,275 psi | 88% | 2759 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,318 psi | 88% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,956 psi | 88% | 2805 fps | 97.6% |
| Somchem S321 | <<locked>> | 84% | 56,304 psi | 88% | 2861 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,622 psi | 87% | 2759 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 57,014 psi | 89% | 2867 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 57,609 psi | 90% | 2897 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,269 psi | 76% | 2858 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 56,086 psi | 88% | 2723 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,420 psi | 88% | 2743 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,737 psi | 86% | 2782 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,767 psi | 87% | 2802 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,521 psi | 87% | 2828 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 56,681 psi | 89% | 2904 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 86% | 55,448 psi | 87% | 2825 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 57,319 psi | 90% | 2844 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,564 psi | 87% | 2910 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,872 psi | 64% | 2730 fps | 98% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 57,392 psi | 90% | 2887 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 55,317 psi | 87% | 2874 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 54,317 psi | 85% | 2917 fps | 97.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,765 psi | 53% | 2641 fps | 97.5% |
| Winchester StaBALL Match | <<locked>> | 88% | 54,157 psi | 85% | 2854 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% | 47,224 psi | 74% | 2638 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,634 psi | 81% | 2749 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,914 psi | 63% | 2559 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,760 psi | 73% | 2710 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 48,254 psi | 76% | 2684 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 37,768 psi | 59% | 2552 fps | 99.9% |
| Accurate 4350 | <<locked>> | 86% | 33,866 psi | 53% | 2530 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 43,555 psi | 68% | 2664 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 37,057 psi | 58% | 2513 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,629 psi | 72% | 2674 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 45,803 psi | 72% | 2664 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 53,330 psi | 84% | 2881 fps | 100% |
| Alliant Power Pro 2000-MR | 43.5 gr | 80% | 39,552 psi | 62% | 2690 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,492 psi | 57% | 2536 fps | 98.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 53,171 psi | 83% | 2733 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,320 psi | 62% | 2598 fps | 97.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,287 psi | 54% | 2539 fps | 95% |
| Alliant Reloder-17 | 42.8 gr | 80% | 31,575 psi | 49% | 2493 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,357 psi | 49% | 2490 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,986 psi | 61% | 2736 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,641 psi | 67% | 2664 fps | 97.7% |
| Bofors RP3 | <<locked>> | 80% | 36,042 psi | 56% | 2536 fps | 98.1% |
| Bofors RP7 | <<locked>> | 92% | 47,703 psi | 75% | 2717 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,471 psi | 74% | 2667 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,454 psi | 70% | 2697 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,936 psi | 77% | 2838 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 80% | 52,286 psi | 82% | 2772 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 53,113 psi | 83% | 2795 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,057 psi | 58% | 2539 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 92% | 44,353 psi | 70% | 2743 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 94% | 51,909 psi | 81% | 2828 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 43,932 psi | 69% | 2677 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 31,343 psi | 49% | 2434 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,827 psi | 62% | 2644 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 94% | 47,688 psi | 75% | 2825 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,194 psi | 41% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,264 psi | 66% | 2628 fps | 98.9% |
| IMR 3031 | <<locked>> | 80% | 43,395 psi | 68% | 2671 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,899 psi | 61% | 2546 fps | 97.4% |
| IMR 4166 Enduron | <<locked>> | 82% | 44,034 psi | 69% | 2618 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 53,272 psi | 83% | 2690 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 47,906 psi | 75% | 2743 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,601 psi | 73% | 2697 fps | 95.6% |
| IMR 4831 | <<locked>> | 88% | 35,099 psi | 55% | 2539 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 40,248 psi | 63% | 2628 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 45,629 psi | 72% | 2674 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 51,706 psi | 81% | 2759 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,438 psi | 67% | 2644 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,729 psi | 69% | 2605 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 38,798 psi | 61% | 2552 fps | 98.9% |
| Lovex S065 | <<locked>> | 88% | 40,770 psi | 64% | 2592 fps | 95.6% |
| Lovex S070 | <<locked>> | 92% | 43,772 psi | 69% | 2674 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 42,685 psi | 67% | 2618 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 42,844 psi | 67% | 2628 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,682 psi | 61% | 2589 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 36,564 psi | 57% | 2585 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 38,232 psi | 60% | 2598 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 92% | 40,625 psi | 64% | 2674 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 45,556 psi | 71% | 2677 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,962 psi | 70% | 2697 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,066 psi | 77% | 2720 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,585 psi | 42% | 1585 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,097 psi | 80% | 2756 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,844 psi | 67% | 2635 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,017 psi | 64% | 2697 fps | 97.9% |
| ReloadSwiss RS 60 | 42.8 gr | 80% | 33,591 psi | 53% | 2566 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 35,940 psi | 56% | 2595 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 38,841 psi | 61% | 2664 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 46,760 psi | 73% | 2664 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,567 psi | 64% | 2569 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 34,113 psi | 53% | 2484 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 92% | 47,703 psi | 75% | 2717 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,770 psi | 64% | 2592 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,438 psi | 67% | 2644 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,798 psi | 61% | 2552 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 92% | 43,772 psi | 69% | 2674 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 54,128 psi | 85% | 2779 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,896 psi | 55% | 2530 fps | 96.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 54,027 psi | 85% | 2753 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,859 psi | 69% | 2651 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,989 psi | 66% | 2631 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,121 psi | 69% | 2575 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,651 psi | 57% | 2444 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,832 psi | 72% | 2644 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 49,255 psi | 77% | 2753 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,642 psi | 68% | 2575 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,439 psi | 68% | 2648 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 34,867 psi | 55% | 2490 fps | 97.3% |
| Somchem S365 | <<locked>> | 82% | 26,963 psi | 42% | 2365 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 49,835 psi | 78% | 2638 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,411 psi | 70% | 2569 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,059 psi | 63% | 2559 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,727 psi | 64% | 2566 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,243 psi | 52% | 2428 fps | 98.1% |
| Vihtavuori N160 | <<locked>> | 86% | 35,926 psi | 56% | 2533 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 45,527 psi | 71% | 2667 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 39,146 psi | 61% | 2552 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 35,186 psi | 55% | 2533 fps | 95% |
| Vihtavuori N555 | <<locked>> | 94% | 33,591 psi | 53% | 2569 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,486 psi | 46% | 2346 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 45,179 psi | 71% | 2713 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 44,657 psi | 70% | 2749 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,575 psi | 49% | 2572 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,437 psi | 65% | 2635 fps | 98.9% |
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 119 powders for .284 Win. loaded with the .284 | 140gr | Sierra Tipped GameKing. Alliant Reloder-17 delivers the highest muzzle velocity at 3,018 fps; across all powders the maximum-charge window runs from 1,736 fps to 3,018 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 51–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:10.5 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. Alliant Power Pro 2000-MR, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .284 Win. with the .284 | 140gr | Sierra Tipped GameKing they combine a high case fill with complete burn and sit in the upper velocity band. 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.