Load Specifications
Bullet Manufacturer:North Fork
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:1:11.0
Load data in caliber .284 Win. with .284 | 140gr | NorthFork Bonded Core bullet and 102 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% | 57,363 psi | 90% | 2782 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,898 psi | 88% | 2808 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,014 psi | 88% | 2805 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,056 psi | 85% | 2822 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 55,332 psi | 87% | 2802 fps | 96.7% |
| Accurate 4064 | <<locked>> | 92% | 55,854 psi | 88% | 2851 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 55,448 psi | 87% | 2930 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 88% | 56,289 psi | 88% | 2881 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 57,348 psi | 90% | 2881 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 55,376 psi | 87% | 2831 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 56,289 psi | 88% | 2812 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 57,508 psi | 90% | 2946 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 56,072 psi | 88% | 3002 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 57,130 psi | 90% | 2900 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,942 psi | 89% | 2785 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 54,563 psi | 86% | 2874 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,359 psi | 84% | 2933 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 54,563 psi | 86% | 2976 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,014 psi | 60% | 2664 fps | 98.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,395 psi | 66% | 2818 fps | 97.3% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 56,304 psi | 88% | 2900 fps | 99.7% |
| Bofors RP3 | <<locked>> | 92% | 54,317 psi | 85% | 2867 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 54,462 psi | 85% | 2831 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 86% | 57,058 psi | 89% | 2815 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 54,737 psi | 86% | 2864 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 56,869 psi | 89% | 2966 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 82% | 56,043 psi | 88% | 2828 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 57,014 psi | 89% | 2851 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 55,376 psi | 87% | 2881 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 98% | 54,781 psi | 86% | 2927 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 96% | 55,666 psi | 87% | 2887 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 88% | 56,826 psi | 89% | 2894 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,371 psi | 77% | 2808 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 56,202 psi | 88% | 2923 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 55,825 psi | 87% | 2966 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,302 psi | 55% | 1736 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 54,766 psi | 86% | 2844 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 56,811 psi | 89% | 2874 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,855 psi | 89% | 2864 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,927 psi | 89% | 2844 fps | 97.8% |
| IMR 4198 | <<locked>> | 82% | 56,739 psi | 89% | 2740 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 54,592 psi | 86% | 2858 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 96% | 56,681 psi | 89% | 2871 fps | 97.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,475 psi | 82% | 2871 fps | 99.3% |
| IMR 4895 | <<locked>> | 90% | 55,956 psi | 88% | 2907 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 55,376 psi | 87% | 2831 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 55,579 psi | 87% | 2818 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 56,101 psi | 88% | 2858 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,927 psi | 88% | 2808 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 56,594 psi | 89% | 2861 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 55,825 psi | 87% | 2861 fps | 98.7% |
| Lovex S070ᴾ | <<locked>> | 100% | 56,797 psi | 89% | 2894 fps | 98% |
| Norma 201 | <<locked>> | 88% | 55,245 psi | 87% | 2828 fps | 100% |
| Norma 202 | <<locked>> | 88% | 55,622 psi | 87% | 2831 fps | 100% |
| Norma 203B | <<locked>> | 92% | 57,145 psi | 90% | 2913 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 54,592 psi | 86% | 2920 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 90% | 54,172 psi | 85% | 2887 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,374 psi | 84% | 2913 fps | 98.2% |
| Ramshot TAC | <<locked>> | 86% | 55,854 psi | 88% | 2854 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,172 psi | 86% | 2871 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 56,434 psi | 88% | 2838 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,955 psi | 56% | 1781 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,955 psi | 86% | 2815 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,782 psi | 87% | 2861 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 54,723 psi | 86% | 2940 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 54,288 psi | 85% | 2976 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 55,129 psi | 86% | 2953 fps | 99.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 55,129 psi | 86% | 2982 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 86% | 56,130 psi | 88% | 2808 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 55,535 psi | 87% | 2825 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 57,740 psi | 90% | 2907 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 54,462 psi | 85% | 2831 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 98% | 55,825 psi | 87% | 2861 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 56,101 psi | 88% | 2858 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 56,594 psi | 89% | 2861 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 56,797 psi | 89% | 2894 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,956 psi | 88% | 2920 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 54,041 psi | 85% | 2828 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 54,723 psi | 86% | 2854 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,826 psi | 89% | 2769 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,855 psi | 89% | 2762 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 56,318 psi | 88% | 2812 fps | 97.7% |
| Somchem S321 | <<locked>> | 84% | 56,855 psi | 89% | 2871 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,144 psi | 88% | 2766 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 57,508 psi | 90% | 2877 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 54,636 psi | 86% | 2858 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,718 psi | 76% | 2864 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 56,362 psi | 88% | 2726 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,985 psi | 89% | 2753 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 55,390 psi | 87% | 2792 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,275 psi | 88% | 2808 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 56,028 psi | 88% | 2835 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 57,130 psi | 90% | 2913 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 86% | 55,956 psi | 88% | 2835 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 54,404 psi | 85% | 2805 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,999 psi | 88% | 2917 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,321 psi | 65% | 2740 fps | 98.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 57,740 psi | 90% | 2894 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 55,912 psi | 88% | 2884 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 55,114 psi | 86% | 2933 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,026 psi | 53% | 2654 fps | 97.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 54,607 psi | 86% | 2861 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 47,529 psi | 74% | 2641 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 52,199 psi | 82% | 2759 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,248 psi | 63% | 2566 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,369 psi | 74% | 2720 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 48,399 psi | 76% | 2690 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 38,072 psi | 60% | 2559 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,127 psi | 53% | 2533 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 43,772 psi | 69% | 2671 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 37,289 psi | 58% | 2520 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,861 psi | 72% | 2680 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 46,137 psi | 72% | 2671 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 53,650 psi | 84% | 2887 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,755 psi | 62% | 2694 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,999 psi | 58% | 2546 fps | 98.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 53,476 psi | 84% | 2736 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,537 psi | 62% | 2605 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,664 psi | 54% | 2549 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 31,734 psi | 50% | 2503 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,676 psi | 50% | 2503 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,883 psi | 58% | 2687 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,134 psi | 68% | 2677 fps | 97.9% |
| Bofors RP3 | <<locked>> | 80% | 36,521 psi | 57% | 2549 fps | 98.2% |
| Bofors RP7 | <<locked>> | 92% | 48,153 psi | 75% | 2726 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,703 psi | 75% | 2671 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,657 psi | 70% | 2703 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,168 psi | 77% | 2844 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 80% | 52,576 psi | 82% | 2779 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 53,359 psi | 84% | 2799 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,275 psi | 58% | 2546 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 92% | 44,802 psi | 70% | 2753 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 94% | 52,359 psi | 82% | 2838 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 44,193 psi | 69% | 2684 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,791 psi | 47% | 2395 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,306 psi | 63% | 2654 fps | 99% |
| Hodgdon Superformance | <<locked>> | 94% | 48,312 psi | 76% | 2838 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,426 psi | 41% | 1555 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,482 psi | 67% | 2635 fps | 99% |
| IMR 3031 | <<locked>> | 80% | 43,729 psi | 69% | 2677 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,117 psi | 61% | 2552 fps | 97.5% |
| IMR 4166 Enduron | <<locked>> | 82% | 44,469 psi | 70% | 2631 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 53,606 psi | 84% | 2697 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 48,327 psi | 76% | 2753 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 44,309 psi | 69% | 2657 fps | 95% |
| IMR 4831 | <<locked>> | 88% | 35,288 psi | 55% | 2546 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 40,509 psi | 63% | 2638 fps | 98.3% |
| IMR 8208 XBR | <<locked>> | 80% | 45,861 psi | 72% | 2680 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 80% | 51,938 psi | 81% | 2766 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,989 psi | 67% | 2654 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,961 psi | 69% | 2612 fps | 98.9% |
| Lovex S062 | <<locked>> | 80% | 39,059 psi | 61% | 2559 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 38,740 psi | 61% | 2552 fps | 95% |
| Lovex S070 | <<locked>> | 92% | 44,208 psi | 69% | 2684 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 42,931 psi | 67% | 2625 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 43,366 psi | 68% | 2638 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,928 psi | 61% | 2592 fps | 97.9% |
| Norma URP | <<locked>> | 86% | 34,476 psi | 54% | 2536 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 38,450 psi | 60% | 2605 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 92% | 40,988 psi | 64% | 2684 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 45,687 psi | 72% | 2680 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,179 psi | 71% | 2703 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,559 psi | 78% | 2730 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,600 psi | 42% | 1588 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,358 psi | 80% | 2762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,018 psi | 67% | 2641 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,568 psi | 65% | 2710 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,794 psi | 53% | 2569 fps | 99% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 36,347 psi | 57% | 2608 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 39,189 psi | 61% | 2674 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 47,036 psi | 74% | 2671 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,046 psi | 64% | 2582 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 80% | 34,360 psi | 54% | 2493 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 92% | 48,153 psi | 75% | 2726 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,740 psi | 61% | 2552 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,989 psi | 67% | 2654 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,059 psi | 61% | 2559 fps | 99% |
| Shooters World SW4350 | <<locked>> | 92% | 44,208 psi | 69% | 2684 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,331 psi | 55% | 2539 fps | 96.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,063 psi | 69% | 2657 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,453 psi | 67% | 2641 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,411 psi | 70% | 2582 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,883 psi | 58% | 2451 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 46,238 psi | 72% | 2654 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 49,792 psi | 78% | 2762 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,888 psi | 69% | 2582 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,903 psi | 69% | 2661 fps | 98.8% |
| Somchem S355 | <<locked>> | 80% | 35,143 psi | 55% | 2497 fps | 97.4% |
| Somchem S365 | <<locked>> | 82% | 27,137 psi | 43% | 2372 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 50,096 psi | 79% | 2644 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,686 psi | 70% | 2575 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,335 psi | 63% | 2566 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,988 psi | 64% | 2572 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,489 psi | 52% | 2438 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 86% | 36,114 psi | 57% | 2539 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 46,064 psi | 72% | 2680 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 39,392 psi | 62% | 2559 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 35,592 psi | 56% | 2543 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 94% | 34,026 psi | 53% | 2579 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,791 psi | 47% | 2356 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 45,730 psi | 72% | 2726 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 45,107 psi | 71% | 2759 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,979 psi | 47% | 2520 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,901 psi | 66% | 2648 fps | 99% |
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 | NorthFork Bonded Core. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,002 fps; across all powders the maximum-charge window runs from 1,736 fps to 3,002 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 1:11.0 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.