Load Specifications
Load data in caliber .284 Win. with .284 | 140gr | Barnes X S bullet and 96 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, ReloadSwiss RS 60 and Hodgdon Superformance.
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% | 57,145 psi | 90% | 2753 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,869 psi | 89% | 2789 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,246 psi | 90% | 2838 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,696 psi | 90% | 2815 fps | 97% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,888 psi | 67% | 2674 fps | 95.8% |
| Accurate 4064 | <<locked>> | 90% | 56,608 psi | 89% | 2835 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,187 psi | 86% | 2904 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 86% | 55,593 psi | 87% | 2848 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 56,289 psi | 88% | 2844 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,476 psi | 85% | 2799 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,405 psi | 87% | 2776 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,578 psi | 86% | 2956 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,521 psi | 89% | 2871 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 57,029 psi | 89% | 2890 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,666 psi | 87% | 2949 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 57,130 psi | 90% | 2992 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,741 psi | 64% | 2700 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,208 psi | 71% | 2854 fps | 97.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,955 psi | 86% | 2858 fps | 99.5% |
| Bofors RP3 | <<locked>> | 90% | 54,070 psi | 85% | 2841 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 57,334 psi | 90% | 2854 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,246 psi | 88% | 2782 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,682 psi | 90% | 2884 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,332 psi | 87% | 2920 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 90% | 54,723 psi | 86% | 2844 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 98% | 57,348 psi | 90% | 2943 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 94% | 54,549 psi | 85% | 2851 fps | 96% |
| Hodgdon H4895 | <<locked>> | 86% | 56,101 psi | 88% | 2858 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,214 psi | 82% | 2831 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,216 psi | 87% | 2890 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 54,375 psi | 85% | 2920 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,969 psi | 56% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,029 psi | 89% | 2858 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,912 psi | 88% | 2838 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,883 psi | 88% | 2828 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,941 psi | 88% | 2805 fps | 97.5% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,927 psi | 89% | 2871 fps | 97.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,434 psi | 87% | 2828 fps | 97.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 55,347 psi | 87% | 2890 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 55,071 psi | 86% | 2871 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 54,476 psi | 85% | 2799 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,608 psi | 87% | 2828 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,810 psi | 86% | 2772 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 56,144 psi | 88% | 2831 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,201 psi | 87% | 2828 fps | 98.6% |
| Lovex S070 | <<locked>> | 98% | 56,289 psi | 88% | 2864 fps | 97.8% |
| Norma 201 | <<locked>> | 86% | 55,027 psi | 86% | 2802 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,027 psi | 86% | 2799 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,260 psi | 88% | 2877 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 57,246 psi | 90% | 2936 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 56,608 psi | 89% | 2900 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,898 psi | 88% | 2930 fps | 98.4% |
| Ramshot TAC | <<locked>> | 84% | 54,520 psi | 85% | 2812 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,230 psi | 85% | 2831 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,317 psi | 87% | 2799 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,463 psi | 57% | 1775 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,319 psi | 90% | 2825 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,969 psi | 86% | 2828 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 57,537 psi | 90% | 2959 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 56,768 psi | 89% | 2989 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 54,331 psi | 85% | 2920 fps | 99.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 57,348 psi | 90% | 2995 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 84% | 56,492 psi | 89% | 2785 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,317 psi | 87% | 2795 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 57,653 psi | 90% | 2884 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 57,334 psi | 90% | 2854 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,201 psi | 87% | 2828 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,608 psi | 87% | 2828 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,144 psi | 88% | 2831 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,289 psi | 88% | 2864 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,042 psi | 86% | 2887 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,029 psi | 89% | 2848 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 57,290 psi | 90% | 2871 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,753 psi | 87% | 2733 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,796 psi | 87% | 2730 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,550 psi | 87% | 2779 fps | 97.4% |
| Somchem S321 | <<locked>> | 82% | 55,970 psi | 88% | 2835 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,608 psi | 87% | 2736 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,086 psi | 88% | 2835 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 57,334 psi | 90% | 2874 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,590 psi | 81% | 2890 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 55,593 psi | 87% | 2697 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,782 psi | 87% | 2717 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 54,853 psi | 86% | 2762 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,201 psi | 87% | 2772 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,550 psi | 87% | 2808 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,159 psi | 88% | 2881 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 84% | 55,085 psi | 86% | 2799 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,826 psi | 89% | 2818 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 55,419 psi | 87% | 2887 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,512 psi | 70% | 2776 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,376 psi | 88% | 2858 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,795 psi | 86% | 2844 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 57,653 psi | 90% | 2949 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,869 psi | 58% | 2707 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 57,377 psi | 90% | 2881 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% | 50,691 psi | 79% | 2664 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,672 psi | 70% | 2608 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,531 psi | 79% | 2743 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 48,167 psi | 75% | 2661 fps | 95% |
| Accurate 3100 | <<locked>> | 98% | 40,248 psi | 63% | 2621 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 42,148 psi | 66% | 2602 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 35,230 psi | 55% | 2533 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 46,601 psi | 73% | 2697 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 39,740 psi | 62% | 2549 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,472 psi | 76% | 2703 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 49,066 psi | 77% | 2690 fps | 100% |
| Alliant Power Pro 2000-MR | 43.2 gr | 80% | 42,192 psi | 66% | 2723 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,624 psi | 62% | 2575 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,438 psi | 67% | 2638 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 34,983 psi | 55% | 2530 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,490 psi | 54% | 2549 fps | 97% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,835 psi | 48% | 2448 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 94% | 37,391 psi | 59% | 2674 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,556 psi | 71% | 2700 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 39,697 psi | 62% | 2589 fps | 98.8% |
| Bofors RP7 | <<locked>> | 90% | 48,008 psi | 75% | 2697 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,154 psi | 79% | 2690 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,543 psi | 75% | 2726 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,764 psi | 81% | 2864 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 80% | 40,364 psi | 63% | 2585 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 90% | 44,570 psi | 70% | 2726 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 51,401 psi | 81% | 2799 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 47,079 psi | 74% | 2710 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 30,545 psi | 48% | 2385 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,859 psi | 67% | 2680 fps | 99.3% |
| Hodgdon Superformance | 51.7 gr | 92% | 47,384 psi | 74% | 2799 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,006 psi | 42% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,715 psi | 70% | 2654 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 46,644 psi | 73% | 2703 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,742 psi | 65% | 2582 fps | 98% |
| IMR 4166 Enduron | <<locked>> | 82% | 46,688 psi | 73% | 2648 fps | 95.6% |
| IMR 4350 | <<locked>> | 94% | 47,761 psi | 75% | 2720 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 46,601 psi | 73% | 2677 fps | 95.5% |
| IMR 4831 | <<locked>> | 86% | 36,042 psi | 56% | 2533 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 43,482 psi | 68% | 2667 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 48,472 psi | 76% | 2703 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 46,166 psi | 72% | 2680 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,340 psi | 73% | 2628 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 42,105 psi | 66% | 2595 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 39,262 psi | 62% | 2536 fps | 95.1% |
| Lovex S070 | <<locked>> | 90% | 44,541 psi | 70% | 2664 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 46,151 psi | 72% | 2654 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 46,021 psi | 72% | 2657 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,843 psi | 66% | 2628 fps | 98.5% |
| Norma URP | <<locked>> | 84% | 35,085 psi | 55% | 2523 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 41,031 psi | 64% | 2635 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 41,046 psi | 64% | 2661 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 48,428 psi | 76% | 2710 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,964 psi | 75% | 2730 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,967 psi | 81% | 2746 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,282 psi | 43% | 1585 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,998 psi | 85% | 2779 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 43,120 psi | 68% | 2618 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,309 psi | 69% | 2736 fps | 98.5% |
| ReloadSwiss RS 60 | 42.6 gr | 80% | 36,506 psi | 57% | 2612 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 36,869 psi | 58% | 2592 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 39,059 psi | 61% | 2644 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 50,270 psi | 79% | 2694 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,976 psi | 69% | 2608 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 37,521 psi | 59% | 2533 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 90% | 48,008 psi | 75% | 2697 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,262 psi | 62% | 2536 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,166 psi | 72% | 2680 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,105 psi | 66% | 2595 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 44,541 psi | 70% | 2664 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,855 psi | 59% | 2572 fps | 97.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,978 psi | 74% | 2684 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,860 psi | 70% | 2664 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,992 psi | 74% | 2602 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,392 psi | 62% | 2474 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 46,035 psi | 72% | 2625 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 52,518 psi | 82% | 2782 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,804 psi | 73% | 2605 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,485 psi | 73% | 2680 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 38,189 psi | 60% | 2536 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 28,384 psi | 44% | 2379 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 52,663 psi | 83% | 2657 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,181 psi | 74% | 2592 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,395 psi | 68% | 2589 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,468 psi | 68% | 2592 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,158 psi | 57% | 2470 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 36,535 psi | 57% | 2523 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 48,573 psi | 76% | 2697 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 42,279 psi | 66% | 2589 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 36,071 psi | 57% | 2526 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 90% | 33,112 psi | 52% | 2526 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,198 psi | 50% | 2395 fps | 96.2% |
| Winchester 748 | <<locked>> | 80% | 48,283 psi | 76% | 2746 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 44,802 psi | 70% | 2730 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 94% | 30,879 psi | 48% | 2520 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,469 psi | 70% | 2671 fps | 99.3% |
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 96 powders for .284 Win. loaded with the .284 | 140gr | Barnes X S. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,995 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,995 fps. Accurate 3100 gives the best case fill at 100 %, and 96 of the 96 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 1:10.5 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, ReloadSwiss RS 60, Hodgdon Superformance rank at the top here: for .284 Win. with the .284 | 140gr | Barnes X S 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.