Load Specifications
Load data in caliber .284 Win. with .284 | 146gr | Peregrine VRG-2 bullet and 98 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, Hodgdon Superformance and Alliant Reloder-17.
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.
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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% | 55,550 psi | 87% | 2717 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 57,725 psi | 90% | 2785 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,347 psi | 88% | 2812 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,319 psi | 90% | 2802 fps | 97.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,292 psi | 65% | 2635 fps | 96.3% |
| Accurate 4064 | <<locked>> | 92% | 57,653 psi | 90% | 2831 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,462 psi | 85% | 2877 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 54,868 psi | 86% | 2822 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 56,159 psi | 88% | 2828 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 57,377 psi | 90% | 2822 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 54,824 psi | 86% | 2746 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,708 psi | 86% | 2943 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,043 psi | 88% | 2844 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,507 psi | 89% | 2864 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,941 psi | 88% | 2936 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 57,232 psi | 90% | 2972 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,697 psi | 62% | 2671 fps | 99.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,469 psi | 70% | 2835 fps | 98.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,897 psi | 86% | 2841 fps | 99.8% |
| Bofors RP3 | <<locked>> | 92% | 56,594 psi | 89% | 2861 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,797 psi | 89% | 2835 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,666 psi | 87% | 2756 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,029 psi | 89% | 2854 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,347 psi | 87% | 2900 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 54,070 psi | 85% | 2825 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 98% | 57,406 psi | 90% | 2930 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 94% | 54,491 psi | 85% | 2838 fps | 97% |
| Hodgdon H4895 | <<locked>> | 86% | 55,434 psi | 87% | 2831 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,953 psi | 81% | 2808 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,274 psi | 87% | 2867 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 54,592 psi | 86% | 2917 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,346 psi | 55% | 1716 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,724 psi | 89% | 2835 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,666 psi | 87% | 2815 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,724 psi | 87% | 2812 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,317 psi | 87% | 2789 fps | 98.2% |
| IMR 4350ᴾ | <<locked>> | 100% | 57,334 psi | 90% | 2864 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,405 psi | 87% | 2818 fps | 98.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,998 psi | 86% | 2867 fps | 99.8% |
| IMR 4895 | <<locked>> | 88% | 54,549 psi | 85% | 2848 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 57,377 psi | 90% | 2822 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 54,592 psi | 86% | 2799 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,534 psi | 85% | 2753 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 55,434 psi | 87% | 2805 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,462 psi | 85% | 2805 fps | 99% |
| Lovex S070 | <<locked>> | 98% | 55,405 psi | 87% | 2841 fps | 98.4% |
| Norma 201 | <<locked>> | 88% | 57,101 psi | 89% | 2818 fps | 100% |
| Norma 202 | <<locked>> | 88% | 57,667 psi | 90% | 2815 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,680 psi | 87% | 2854 fps | 100% |
| Norma 204 | <<locked>> | 98% | 54,360 psi | 85% | 2858 fps | 96.4% |
| Norma URPᴾ | <<locked>> | 100% | 57,305 psi | 90% | 2920 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 90% | 56,840 psi | 89% | 2887 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 56,159 psi | 88% | 2920 fps | 99.1% |
| Ramshot TAC | <<locked>> | 84% | 54,331 psi | 85% | 2795 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 84% | 53,795 psi | 84% | 2812 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,636 psi | 86% | 2776 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,955 psi | 56% | 1759 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,985 psi | 89% | 2802 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,534 psi | 85% | 2808 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 57,464 psi | 90% | 2936 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 57,014 psi | 89% | 2969 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 54,346 psi | 85% | 2904 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 53,940 psi | 85% | 2933 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 84% | 54,201 psi | 85% | 2743 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 57,392 psi | 90% | 2812 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 56,463 psi | 88% | 2851 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 56,797 psi | 89% | 2835 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,462 psi | 85% | 2805 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,592 psi | 86% | 2799 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,434 psi | 87% | 2805 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,405 psi | 87% | 2841 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 54,911 psi | 86% | 2864 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 56,130 psi | 88% | 2825 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,985 psi | 89% | 2848 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,347 psi | 87% | 2710 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,666 psi | 87% | 2707 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,723 psi | 86% | 2759 fps | 98.1% |
| Somchem S321 | <<locked>> | 82% | 55,027 psi | 86% | 2805 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 54,346 psi | 85% | 2703 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,999 psi | 88% | 2815 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 56,855 psi | 89% | 2851 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,721 psi | 81% | 2867 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 47,718 psi | 75% | 2746 fps | 96.2% |
| Vihtavuori N130 | <<locked>> | 82% | 55,013 psi | 86% | 2671 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,637 psi | 87% | 2694 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 57,595 psi | 90% | 2776 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,882 psi | 86% | 2749 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,737 psi | 86% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,231 psi | 88% | 2864 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 84% | 54,563 psi | 86% | 2776 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,536 psi | 89% | 2795 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 55,042 psi | 86% | 2867 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,627 psi | 68% | 2746 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,449 psi | 88% | 2841 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,621 psi | 86% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 53,954 psi | 85% | 2877 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,462 psi | 56% | 2677 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,898 psi | 89% | 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% | 49,095 psi | 77% | 2628 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,350 psi | 65% | 2549 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,153 psi | 77% | 2710 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,978 psi | 74% | 2638 fps | 95.7% |
| Accurate 3100 | <<locked>> | 98% | 38,609 psi | 61% | 2582 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 39,131 psi | 61% | 2543 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 33,170 psi | 52% | 2480 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 45,498 psi | 71% | 2667 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 38,537 psi | 60% | 2516 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,645 psi | 75% | 2674 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,109 psi | 75% | 2654 fps | 100% |
| Alliant Power Pro 2000-MR | 45.1 gr | 80% | 41,350 psi | 65% | 2700 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,247 psi | 60% | 2539 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,133 psi | 64% | 2605 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,591 psi | 53% | 2497 fps | 95.7% |
| Alliant Reloder-17 | 44.4 gr | 80% | 32,866 psi | 52% | 2507 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 28,906 psi | 45% | 2395 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 94% | 35,853 psi | 56% | 2638 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,773 psi | 70% | 2674 fps | 98.7% |
| Bofors RP3 | <<locked>> | 80% | 37,695 psi | 59% | 2539 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 43,990 psi | 69% | 2618 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,182 psi | 77% | 2661 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,354 psi | 73% | 2694 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,677 psi | 81% | 2844 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 80% | 38,682 psi | 61% | 2546 fps | 96.8% |
| Hodgdon H414 | <<locked>> | 88% | 41,046 psi | 64% | 2648 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 90% | 48,008 psi | 75% | 2730 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 45,919 psi | 72% | 2677 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,805 psi | 45% | 2339 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,814 psi | 66% | 2648 fps | 99.6% |
| Hodgdon Superformance | 52.8 gr | 90% | 43,656 psi | 68% | 2720 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,411 psi | 41% | 1535 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,976 psi | 69% | 2631 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 45,571 psi | 71% | 2667 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,437 psi | 63% | 2549 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,047 psi | 67% | 2575 fps | 95.6% |
| IMR 4350 | <<locked>> | 92% | 44,266 psi | 69% | 2648 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 43,163 psi | 68% | 2605 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 32,271 psi | 51% | 2438 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 42,134 psi | 66% | 2635 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 47,645 psi | 75% | 2674 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 44,425 psi | 70% | 2641 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,339 psi | 71% | 2602 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 40,277 psi | 63% | 2552 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 37,449 psi | 59% | 2497 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 40,408 psi | 63% | 2575 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 44,164 psi | 69% | 2615 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 44,831 psi | 70% | 2625 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,495 psi | 63% | 2592 fps | 98.8% |
| Norma 204 | <<locked>> | 96% | 50,734 psi | 80% | 2799 fps | 95.5% |
| Norma URP | <<locked>> | 84% | 33,663 psi | 53% | 2484 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 40,030 psi | 63% | 2605 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 40,103 psi | 63% | 2635 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 47,529 psi | 74% | 2684 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,166 psi | 74% | 2703 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,242 psi | 80% | 2723 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,556 psi | 42% | 1568 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,359 psi | 84% | 2753 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,160 psi | 61% | 2533 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,337 psi | 68% | 2707 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,027 psi | 55% | 2572 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 32,996 psi | 52% | 2497 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 35,534 psi | 56% | 2559 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 48,008 psi | 75% | 2651 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,989 psi | 66% | 2566 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 35,462 psi | 56% | 2484 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 43,990 psi | 69% | 2618 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 37,449 psi | 59% | 2497 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,425 psi | 70% | 2641 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,277 psi | 63% | 2552 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 40,408 psi | 63% | 2575 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,506 psi | 57% | 2536 fps | 97.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,585 psi | 71% | 2654 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,787 psi | 69% | 2635 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,847 psi | 72% | 2572 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,174 psi | 60% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,076 psi | 66% | 2549 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 51,532 psi | 81% | 2753 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,165 psi | 71% | 2566 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,556 psi | 71% | 2654 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 36,245 psi | 57% | 2490 fps | 98.3% |
| Somchem S365 | <<locked>> | 80% | 26,194 psi | 41% | 2320 fps | 95.8% |
| Somchem S385 | <<locked>> | 98% | 44,556 psi | 70% | 2690 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 51,779 psi | 81% | 2628 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,267 psi | 73% | 2562 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,887 psi | 66% | 2552 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,409 psi | 66% | 2562 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,592 psi | 54% | 2428 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 32,851 psi | 51% | 2434 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 47,587 psi | 75% | 2667 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,843 psi | 64% | 2549 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 34,490 psi | 54% | 2484 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 90% | 31,038 psi | 49% | 2470 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,647 psi | 48% | 2359 fps | 96.6% |
| Winchester 748 | <<locked>> | 80% | 47,384 psi | 74% | 2713 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 41,292 psi | 65% | 2651 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 29,037 psi | 46% | 2477 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,540 psi | 68% | 2641 fps | 99.6% |
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 98 powders for .284 Win. loaded with the .284 | 146gr | Peregrine VRG-2. Alliant Reloder-17 delivers the highest muzzle velocity at 2,972 fps; across all powders the maximum-charge window runs from 1,716 fps to 2,972 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 146.0 gr projectile in 0.284" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, 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 Power Pro 2000-MR, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .284 Win. with the .284 | 146gr | Peregrine VRG-2 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.