Load Specifications
Bullet:.284 | 140gr | Remington PSP
Bullet Manufacturer:Remington
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:1:15.0
Load data in caliber .284 Win. with .284 | 140gr | Remington PSP bullet and 98 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>> | 84% | 57,058 psi | 89% | 2795 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,217 psi | 88% | 2825 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,128 psi | 85% | 2841 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,911 psi | 86% | 2825 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,163 psi | 68% | 2723 fps | 96.5% |
| Accurate 4064 | <<locked>> | 90% | 56,043 psi | 88% | 2871 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,202 psi | 88% | 2963 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 56,202 psi | 88% | 2904 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,159 psi | 90% | 2904 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,056 psi | 86% | 2854 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,188 psi | 88% | 2825 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,898 psi | 88% | 3025 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,551 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,447 psi | 85% | 2897 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,898 psi | 89% | 3015 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,781 psi | 86% | 2999 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,031 psi | 64% | 2753 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,093 psi | 72% | 2923 fps | 98.7% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,115 psi | 88% | 2920 fps | 99.8% |
| Bofors RP3 | <<locked>> | 90% | 54,462 psi | 85% | 2890 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,476 psi | 85% | 2861 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,666 psi | 89% | 2835 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,563 psi | 86% | 2884 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,797 psi | 89% | 2986 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,564 psi | 87% | 2907 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 96% | 55,317 psi | 87% | 2959 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 94% | 55,550 psi | 87% | 2917 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 86% | 56,768 psi | 89% | 2913 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,403 psi | 84% | 2890 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,260 psi | 88% | 2946 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,811 psi | 87% | 2995 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,781 psi | 56% | 1772 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,317 psi | 85% | 2864 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,927 psi | 89% | 2894 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,579 psi | 89% | 2884 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,666 psi | 89% | 2867 fps | 98.2% |
| IMR 4350 | <<locked>> | 98% | 54,911 psi | 86% | 2887 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,463 psi | 88% | 2894 fps | 98.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,492 psi | 89% | 2949 fps | 99.8% |
| IMR 4895 | <<locked>> | 88% | 55,854 psi | 88% | 2927 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,056 psi | 86% | 2854 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,057 psi | 88% | 2877 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,492 psi | 87% | 2828 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 56,724 psi | 89% | 2884 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,753 psi | 87% | 2887 fps | 99.1% |
| Lovex S070 | <<locked>> | 98% | 56,927 psi | 89% | 2923 fps | 98.5% |
| Norma 201 | <<locked>> | 86% | 54,984 psi | 86% | 2851 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,361 psi | 87% | 2848 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,174 psi | 90% | 2936 fps | 100% |
| Norma 204 | <<locked>> | 98% | 55,463 psi | 87% | 2936 fps | 96.3% |
| Norma MRPᴾ | <<locked>> | 100% | 46,006 psi | 72% | 2874 fps | 96% |
| Norma URP | <<locked>> | 98% | 54,984 psi | 86% | 2949 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 54,070 psi | 85% | 2907 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,595 psi | 90% | 3002 fps | 99.1% |
| Ramshot TAC | <<locked>> | 84% | 55,288 psi | 87% | 2871 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,187 psi | 86% | 2894 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,753 psi | 87% | 2854 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,143 psi | 57% | 1811 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,724 psi | 87% | 2887 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,824 psi | 86% | 2963 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,650 psi | 86% | 2999 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,637 psi | 87% | 2982 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,288 psi | 87% | 3012 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 84% | 55,854 psi | 88% | 2828 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,550 psi | 87% | 2848 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,331 psi | 85% | 2884 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 54,476 psi | 85% | 2861 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,753 psi | 87% | 2887 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,057 psi | 88% | 2877 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,724 psi | 89% | 2884 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,927 psi | 89% | 2923 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,101 psi | 88% | 2943 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,537 psi | 90% | 2904 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,505 psi | 85% | 2874 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,188 psi | 88% | 2782 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,782 psi | 89% | 2785 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,173 psi | 88% | 2841 fps | 98.1% |
| Somchem S321 | <<locked>> | 82% | 56,275 psi | 88% | 2884 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,782 psi | 87% | 2782 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,246 psi | 90% | 2897 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 54,737 psi | 86% | 2881 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,113 psi | 83% | 2949 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,342 psi | 77% | 2828 fps | 96.3% |
| Vihtavuori N130 | <<locked>> | 82% | 56,057 psi | 88% | 2746 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,434 psi | 88% | 2766 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,419 psi | 87% | 2812 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,144 psi | 88% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,115 psi | 88% | 2858 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,624 psi | 90% | 2946 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 55,593 psi | 87% | 2851 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,056 psi | 85% | 2822 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,405 psi | 88% | 2946 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,223 psi | 71% | 2828 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,070 psi | 85% | 2867 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,840 psi | 88% | 2904 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,317 psi | 87% | 2959 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,854 psi | 58% | 2762 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,665 psi | 86% | 2884 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 50,415 psi | 79% | 2707 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,323 psi | 68% | 2635 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,459 psi | 79% | 2785 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,237 psi | 71% | 2661 fps | 95% |
| Accurate 3100 | <<locked>> | 98% | 40,306 psi | 63% | 2667 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 40,988 psi | 64% | 2631 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 34,592 psi | 54% | 2562 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 46,485 psi | 73% | 2743 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 39,494 psi | 62% | 2589 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,559 psi | 76% | 2749 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,327 psi | 77% | 2733 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,554 psi | 67% | 2782 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,334 psi | 62% | 2615 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,177 psi | 66% | 2680 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 34,621 psi | 54% | 2572 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,127 psi | 53% | 2589 fps | 97.5% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,023 psi | 47% | 2474 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 94% | 37,101 psi | 58% | 2720 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,006 psi | 72% | 2753 fps | 98.8% |
| Bofors RP3 | <<locked>> | 80% | 39,146 psi | 61% | 2621 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 45,266 psi | 71% | 2700 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,343 psi | 79% | 2740 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,776 psi | 75% | 2776 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,910 psi | 83% | 2927 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 80% | 39,929 psi | 63% | 2625 fps | 96.9% |
| Hodgdon H414 | <<locked>> | 88% | 42,395 psi | 66% | 2730 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 90% | 48,950 psi | 77% | 2805 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 46,963 psi | 74% | 2756 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 29,820 psi | 47% | 2415 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,178 psi | 68% | 2730 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 90% | 45,078 psi | 71% | 2805 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 42% | 1581 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,107 psi | 71% | 2707 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 46,775 psi | 73% | 2746 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,481 psi | 65% | 2628 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,903 psi | 69% | 2644 fps | 95.5% |
| IMR 4350 | <<locked>> | 92% | 45,469 psi | 71% | 2726 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 44,077 psi | 69% | 2677 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 33,489 psi | 52% | 2516 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 43,236 psi | 68% | 2710 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 48,559 psi | 76% | 2749 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,093 psi | 72% | 2726 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,253 psi | 72% | 2677 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 41,495 psi | 65% | 2631 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 38,696 psi | 61% | 2572 fps | 95.5% |
| Lovex S070 | <<locked>> | 88% | 41,698 psi | 65% | 2657 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 45,701 psi | 72% | 2697 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 45,963 psi | 72% | 2700 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,553 psi | 65% | 2667 fps | 98.8% |
| Norma 204 | <<locked>> | 96% | 51,924 psi | 81% | 2877 fps | 95.5% |
| Norma MRP | <<locked>> | 98% | 42,873 psi | 67% | 2812 fps | 95% |
| Norma URP | <<locked>> | 84% | 34,795 psi | 55% | 2562 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 41,321 psi | 65% | 2684 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 88% | 38,783 psi | 61% | 2657 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 48,399 psi | 76% | 2756 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,167 psi | 75% | 2779 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,460 psi | 82% | 2802 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,064 psi | 42% | 1621 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,248 psi | 63% | 2605 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,585 psi | 70% | 2785 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,318 psi | 57% | 2654 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 34,316 psi | 54% | 2575 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 36,724 psi | 58% | 2641 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 49,516 psi | 78% | 2733 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,294 psi | 68% | 2644 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 36,738 psi | 58% | 2562 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 45,266 psi | 71% | 2700 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 38,696 psi | 61% | 2572 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,093 psi | 72% | 2726 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,495 psi | 65% | 2631 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 41,698 psi | 65% | 2657 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,637 psi | 59% | 2612 fps | 97.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,949 psi | 74% | 2736 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,889 psi | 70% | 2710 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,688 psi | 73% | 2644 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,015 psi | 61% | 2510 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 43,294 psi | 68% | 2625 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 52,895 psi | 83% | 2835 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,572 psi | 73% | 2648 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,804 psi | 73% | 2733 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 37,666 psi | 59% | 2572 fps | 98.4% |
| Somchem S365 | <<locked>> | 80% | 27,398 psi | 43% | 2402 fps | 96.1% |
| Somchem S385 | <<locked>> | 98% | 46,238 psi | 72% | 2776 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 52,591 psi | 82% | 2700 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,079 psi | 74% | 2635 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,946 psi | 67% | 2625 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,424 psi | 68% | 2635 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,650 psi | 56% | 2503 fps | 99% |
| Vihtavuori N160 | <<locked>> | 82% | 33,997 psi | 53% | 2510 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 48,820 psi | 77% | 2749 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,032 psi | 66% | 2625 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 35,810 psi | 56% | 2566 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 90% | 32,445 psi | 51% | 2552 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,720 psi | 50% | 2431 fps | 96.7% |
| Winchester 748 | <<locked>> | 80% | 48,762 psi | 76% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 42,395 psi | 66% | 2730 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 30,298 psi | 47% | 2562 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,599 psi | 70% | 2717 fps | 99.5% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 117 powders for .284 Win. loaded with the .284 | 140gr | Remington PSP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,025 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,025 fps. Accurate 3100 gives the best case fill at 100 %, and 117 of the 117 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 140.0 gr projectile in 0.284" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, 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 High Country, ADI AR 2213, Alliant Reloder-22 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.