Load Specifications
Bullet Manufacturer:Prvi Partizan
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:1:12.0
Load data in caliber .284 Win. with .284 | 140gr | Prvi Partizan PSP BT 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 Alliant Power Pro 2000-MR.
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% | 54,824 psi | 86% | 2756 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,724 psi | 89% | 2828 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,927 psi | 89% | 2822 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,187 psi | 86% | 2841 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,202 psi | 88% | 2825 fps | 97.1% |
| Accurate 4064 | <<locked>> | 92% | 57,087 psi | 89% | 2874 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 56,811 psi | 89% | 2956 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 88% | 57,377 psi | 90% | 2904 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 54,969 psi | 86% | 2854 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,521 psi | 89% | 2858 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,305 psi | 90% | 2828 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,087 psi | 89% | 3028 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,824 psi | 86% | 2874 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,638 psi | 90% | 2799 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,666 psi | 87% | 2900 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,244 psi | 85% | 2956 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,825 psi | 87% | 2999 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,943 psi | 61% | 2690 fps | 98.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,294 psi | 68% | 2848 fps | 97.7% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,261 psi | 90% | 2920 fps | 99.8% |
| Bofors RP3 | <<locked>> | 92% | 55,448 psi | 87% | 2890 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,709 psi | 87% | 2861 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,578 psi | 86% | 2785 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,811 psi | 87% | 2884 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 53,867 psi | 84% | 2927 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 56,971 psi | 89% | 2844 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,739 psi | 89% | 2907 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 98% | 56,043 psi | 88% | 2953 fps | 98% |
| Hodgdon H4350 | <<locked>> | 96% | 56,550 psi | 89% | 2910 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 86% | 54,592 psi | 86% | 2867 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,647 psi | 79% | 2835 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 57,624 psi | 90% | 2949 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 56,826 psi | 89% | 2992 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,592 psi | 56% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,825 psi | 87% | 2867 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,244 psi | 85% | 2844 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,549 psi | 85% | 2838 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,592 psi | 86% | 2815 fps | 97.6% |
| IMR 4198 | <<locked>> | 82% | 57,508 psi | 90% | 2756 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,767 psi | 87% | 2881 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,537 psi | 90% | 2890 fps | 98% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,751 psi | 84% | 2894 fps | 99.5% |
| IMR 4895 | <<locked>> | 90% | 57,087 psi | 89% | 2930 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,521 psi | 89% | 2858 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 56,753 psi | 89% | 2841 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,276 psi | 90% | 2881 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 57,029 psi | 89% | 2835 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 57,682 psi | 90% | 2881 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 56,695 psi | 89% | 2881 fps | 98.9% |
| Lovex S070ᴾ | <<locked>> | 100% | 57,740 psi | 90% | 2917 fps | 98.3% |
| Norma 201 | <<locked>> | 88% | 56,072 psi | 88% | 2851 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,797 psi | 89% | 2851 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,824 psi | 86% | 2887 fps | 99.9% |
| Norma 204ᴾ | <<locked>> | 100% | 56,594 psi | 89% | 2933 fps | 96.2% |
| Norma URPᴾ | <<locked>> | 100% | 55,550 psi | 87% | 2940 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 55,129 psi | 86% | 2907 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,476 psi | 85% | 2936 fps | 98.5% |
| Ramshot TAC | <<locked>> | 86% | 56,826 psi | 89% | 2877 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,188 psi | 88% | 2890 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,421 psi | 90% | 2861 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,955 psi | 56% | 1788 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,767 psi | 87% | 2835 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 56,739 psi | 89% | 2884 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 55,927 psi | 88% | 2963 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,550 psi | 87% | 2999 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,434 psi | 88% | 2979 fps | 99.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,159 psi | 88% | 3009 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 86% | 57,043 psi | 89% | 2831 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,710 psi | 89% | 2851 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,245 psi | 87% | 2881 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,709 psi | 87% | 2861 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,695 psi | 89% | 2881 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,276 psi | 90% | 2881 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,682 psi | 90% | 2881 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 57,740 psi | 90% | 2917 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,305 psi | 90% | 2946 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,027 psi | 86% | 2851 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,753 psi | 87% | 2874 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,667 psi | 90% | 2785 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,462 psi | 85% | 2740 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,522 psi | 90% | 2838 fps | 98% |
| Somchem S321 | <<locked>> | 82% | 53,969 psi | 85% | 2835 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,942 psi | 89% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,766 psi | 86% | 2844 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 55,709 psi | 87% | 2881 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,024 psi | 78% | 2890 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 57,246 psi | 90% | 2746 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,476 psi | 85% | 2726 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,289 psi | 88% | 2808 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 57,029 psi | 89% | 2825 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,363 psi | 90% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 54,897 psi | 86% | 2890 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 86% | 57,116 psi | 90% | 2858 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,376 psi | 87% | 2825 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 57,188 psi | 90% | 2943 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,569 psi | 67% | 2769 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,259 psi | 87% | 2867 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 57,000 psi | 89% | 2907 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,043 psi | 88% | 2953 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,751 psi | 54% | 2684 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,680 psi | 87% | 2884 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% | 48,501 psi | 76% | 2664 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,084 psi | 83% | 2776 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,162 psi | 65% | 2589 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,196 psi | 76% | 2740 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 49,327 psi | 77% | 2713 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 38,928 psi | 61% | 2582 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 35,056 psi | 55% | 2562 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 44,599 psi | 70% | 2694 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 80% | 38,000 psi | 60% | 2543 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,659 psi | 73% | 2703 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 47,224 psi | 74% | 2690 fps | 100% |
| Alliant Power Pro 2000-MR | 44.7 gr | 80% | 40,683 psi | 64% | 2723 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,536 psi | 59% | 2566 fps | 98.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,215 psi | 85% | 2753 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,350 psi | 63% | 2628 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,288 psi | 55% | 2572 fps | 95.7% |
| Alliant Reloder-17 | 44 gr | 80% | 32,518 psi | 51% | 2530 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,487 psi | 48% | 2474 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,739 psi | 59% | 2717 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,859 psi | 69% | 2697 fps | 98.2% |
| Bofors RP3 | <<locked>> | 80% | 37,318 psi | 58% | 2572 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 46,180 psi | 72% | 2700 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,515 psi | 76% | 2694 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,745 psi | 72% | 2726 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,328 psi | 79% | 2871 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 80% | 53,548 psi | 84% | 2799 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,029 psi | 60% | 2569 fps | 96% |
| Hodgdon H414 | <<locked>> | 90% | 43,004 psi | 67% | 2726 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 92% | 49,864 psi | 78% | 2802 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 45,049 psi | 71% | 2707 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,400 psi | 48% | 2418 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,089 psi | 64% | 2677 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 92% | 45,788 psi | 72% | 2799 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,339 psi | 41% | 1558 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,294 psi | 68% | 2657 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 44,730 psi | 70% | 2700 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,900 psi | 63% | 2575 fps | 97.8% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,136 psi | 71% | 2654 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 54,360 psi | 85% | 2713 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 46,325 psi | 73% | 2723 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,165 psi | 71% | 2680 fps | 95.4% |
| IMR 4831 | <<locked>> | 86% | 33,982 psi | 53% | 2520 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 41,336 psi | 65% | 2657 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 46,659 psi | 73% | 2703 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 53,069 psi | 83% | 2789 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,816 psi | 69% | 2674 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,744 psi | 70% | 2631 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 39,871 psi | 62% | 2582 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 39,436 psi | 62% | 2575 fps | 95.4% |
| Lovex S070 | <<locked>> | 90% | 42,206 psi | 66% | 2651 fps | 95% |
| Norma 201 | <<locked>> | 80% | 43,729 psi | 69% | 2648 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 43,961 psi | 69% | 2654 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,726 psi | 62% | 2618 fps | 98.2% |
| Norma 204 | <<locked>> | 98% | 52,823 psi | 83% | 2874 fps | 95.3% |
| Norma URP | <<locked>> | 86% | 35,375 psi | 55% | 2562 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 39,392 psi | 62% | 2631 fps | 98% |
| Ramshot Hunter | <<locked>> | 92% | 42,018 psi | 66% | 2713 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 46,644 psi | 73% | 2707 fps | 97.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,180 psi | 72% | 2730 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,270 psi | 79% | 2749 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 42% | 1598 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,214 psi | 82% | 2782 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,118 psi | 64% | 2608 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,511 psi | 67% | 2733 fps | 98.3% |
| ReloadSwiss RS 60 | 44 gr | 80% | 34,621 psi | 54% | 2598 fps | 99.3% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,722 psi | 54% | 2575 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,333 psi | 59% | 2638 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 47,674 psi | 75% | 2687 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,626 psi | 65% | 2598 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 35,128 psi | 55% | 2516 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 46,180 psi | 72% | 2700 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,436 psi | 62% | 2575 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,816 psi | 69% | 2674 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,871 psi | 62% | 2582 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 42,206 psi | 66% | 2651 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,998 psi | 56% | 2562 fps | 97.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,049 psi | 71% | 2684 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,178 psi | 68% | 2664 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,020 psi | 71% | 2598 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,434 psi | 59% | 2467 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,338 psi | 69% | 2628 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 50,517 psi | 79% | 2782 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,701 psi | 70% | 2602 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,643 psi | 70% | 2677 fps | 99% |
| Somchem S355 | <<locked>> | 80% | 35,868 psi | 56% | 2520 fps | 97.7% |
| Somchem S365 | <<locked>> | 82% | 27,717 psi | 43% | 2398 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 50,763 psi | 80% | 2657 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,295 psi | 71% | 2592 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,017 psi | 64% | 2579 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,829 psi | 66% | 2592 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,214 psi | 54% | 2457 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 34,577 psi | 54% | 2510 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 46,891 psi | 73% | 2700 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,118 psi | 63% | 2579 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,274 psi | 57% | 2562 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 92% | 32,750 psi | 51% | 2549 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,255 psi | 47% | 2375 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 46,586 psi | 73% | 2746 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 43,004 psi | 67% | 2726 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,530 psi | 48% | 2549 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,627 psi | 67% | 2667 fps | 99.2% |
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 | 140gr | Prvi Partizan PSP BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,028 fps; across all powders the maximum-charge window runs from 1,749 fps to 3,028 fps. Accurate 4350 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 54–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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, Alliant Power Pro 2000-MR rank at the top here: for .284 Win. with the .284 | 140gr | Prvi Partizan PSP BT 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.