Load Specifications
Bullet Manufacturer:Berger
Bullet Weight:150 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 | 150gr | Berger Classic Hybrid Hunter bullet and 99 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% | 57,087 psi | 89% | 2684 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,796 psi | 87% | 2707 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,537 psi | 90% | 2776 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,708 psi | 86% | 2717 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,714 psi | 67% | 2618 fps | 96.9% |
| Accurate 4064 | <<locked>> | 90% | 55,753 psi | 87% | 2756 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,869 psi | 88% | 2848 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 56,072 psi | 88% | 2789 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,058 psi | 89% | 2789 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,158 psi | 86% | 2743 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,956 psi | 88% | 2710 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,869 psi | 88% | 2910 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,159 psi | 90% | 2808 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,186 psi | 85% | 2782 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,840 psi | 89% | 2900 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,491 psi | 85% | 2884 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,756 psi | 64% | 2648 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,701 psi | 72% | 2812 fps | 98.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,985 psi | 88% | 2808 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 54,491 psi | 85% | 2782 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 57,682 psi | 90% | 2799 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,637 psi | 89% | 2720 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,447 psi | 85% | 2769 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,333 psi | 88% | 2867 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,347 psi | 87% | 2795 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 96% | 55,042 psi | 86% | 2848 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 94% | 55,637 psi | 87% | 2808 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 86% | 56,695 psi | 89% | 2799 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,968 psi | 83% | 2776 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,391 psi | 88% | 2835 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,579 psi | 87% | 2884 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,621 psi | 56% | 1683 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,172 psi | 85% | 2749 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,855 psi | 89% | 2779 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,594 psi | 89% | 2772 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,536 psi | 89% | 2759 fps | 98.5% |
| IMR 4350 | <<locked>> | 98% | 54,592 psi | 86% | 2776 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,043 psi | 88% | 2779 fps | 98.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,231 psi | 88% | 2838 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 55,579 psi | 87% | 2812 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,158 psi | 86% | 2743 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,840 psi | 88% | 2762 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,506 psi | 87% | 2717 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 56,463 psi | 88% | 2769 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,709 psi | 87% | 2776 fps | 99.3% |
| Lovex S070 | <<locked>> | 98% | 56,521 psi | 89% | 2808 fps | 98.7% |
| Norma 201 | <<locked>> | 86% | 54,723 psi | 86% | 2733 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,477 psi | 87% | 2736 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,130 psi | 90% | 2822 fps | 100% |
| Norma 204 | <<locked>> | 98% | 55,100 psi | 86% | 2822 fps | 96.6% |
| Norma MRPᴾ | <<locked>> | 100% | 45,643 psi | 72% | 2769 fps | 96.4% |
| Norma URP | <<locked>> | 98% | 54,534 psi | 85% | 2831 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 88% | 53,983 psi | 85% | 2795 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,014 psi | 89% | 2884 fps | 99.2% |
| Ramshot TAC | <<locked>> | 84% | 55,332 psi | 87% | 2762 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,795 psi | 86% | 2776 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,782 psi | 87% | 2743 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,303 psi | 57% | 1729 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,740 psi | 90% | 2762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,376 psi | 87% | 2772 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,636 psi | 86% | 2848 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,201 psi | 85% | 2881 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,405 psi | 87% | 2867 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 54,839 psi | 86% | 2897 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 84% | 55,840 psi | 88% | 2713 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,405 psi | 87% | 2733 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,375 psi | 85% | 2772 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 57,682 psi | 90% | 2799 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,709 psi | 87% | 2776 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,840 psi | 88% | 2762 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,463 psi | 88% | 2769 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,521 psi | 89% | 2808 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,796 psi | 87% | 2828 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,348 psi | 90% | 2792 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,346 psi | 85% | 2759 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,304 psi | 88% | 2674 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,478 psi | 89% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,057 psi | 88% | 2730 fps | 98.4% |
| Somchem S321 | <<locked>> | 82% | 56,057 psi | 88% | 2769 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,564 psi | 87% | 2671 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,058 psi | 89% | 2782 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 54,708 psi | 86% | 2769 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,576 psi | 82% | 2835 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 48,950 psi | 77% | 2723 fps | 96.7% |
| Vihtavuori N130 | <<locked>> | 82% | 55,883 psi | 88% | 2631 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,579 psi | 89% | 2657 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,042 psi | 86% | 2694 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,782 psi | 87% | 2713 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,956 psi | 88% | 2746 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,261 psi | 90% | 2828 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 55,361 psi | 87% | 2740 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 57,653 psi | 90% | 2759 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,217 psi | 88% | 2835 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,875 psi | 70% | 2720 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 57,682 psi | 90% | 2808 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,622 psi | 87% | 2789 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,042 psi | 86% | 2848 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,506 psi | 57% | 2661 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,346 psi | 85% | 2769 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 50,415 psi | 79% | 2595 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,207 psi | 68% | 2530 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,227 psi | 79% | 2674 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,092 psi | 71% | 2556 fps | 95.4% |
| Accurate 3100 | <<locked>> | 96% | 37,449 psi | 59% | 2516 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 40,857 psi | 64% | 2526 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,126 psi | 50% | 2411 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 46,514 psi | 73% | 2638 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 39,581 psi | 62% | 2493 fps | 98.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,559 psi | 76% | 2641 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,095 psi | 77% | 2621 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,424 psi | 66% | 2677 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,291 psi | 62% | 2516 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,148 psi | 66% | 2579 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,489 psi | 51% | 2421 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 33,924 psi | 53% | 2490 fps | 97.9% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,152 psi | 44% | 2333 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 92% | 34,592 psi | 54% | 2562 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,643 psi | 72% | 2641 fps | 99% |
| Bofors RP3 | <<locked>> | 80% | 38,972 psi | 61% | 2520 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 42,496 psi | 67% | 2546 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,270 psi | 79% | 2628 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,645 psi | 75% | 2667 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,634 psi | 82% | 2812 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 39,827 psi | 62% | 2526 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 88% | 42,119 psi | 66% | 2625 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 88% | 45,832 psi | 72% | 2644 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 46,934 psi | 74% | 2648 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,949 psi | 44% | 2274 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,917 psi | 67% | 2621 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 90% | 44,686 psi | 70% | 2697 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,498 psi | 42% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,817 psi | 70% | 2598 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 46,833 psi | 73% | 2638 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,568 psi | 65% | 2526 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,961 psi | 69% | 2546 fps | 96% |
| IMR 4350 | <<locked>> | 90% | 42,583 psi | 67% | 2572 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,336 psi | 65% | 2523 fps | 95.1% |
| IMR 4831 | <<locked>> | 82% | 31,169 psi | 49% | 2369 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 43,207 psi | 68% | 2608 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 48,559 psi | 76% | 2641 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,687 psi | 72% | 2615 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,369 psi | 73% | 2575 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 41,597 psi | 65% | 2530 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 36,289 psi | 57% | 2425 fps | 95.2% |
| Lovex S070 | <<locked>> | 88% | 41,452 psi | 65% | 2552 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 45,571 psi | 71% | 2592 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 45,847 psi | 72% | 2595 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,553 psi | 65% | 2566 fps | 99.1% |
| Norma 204 | <<locked>> | 94% | 48,283 psi | 76% | 2713 fps | 95.1% |
| Norma MRP | <<locked>> | 98% | 42,598 psi | 67% | 2707 fps | 95.5% |
| Norma URP | <<locked>> | 82% | 32,634 psi | 51% | 2415 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 41,176 psi | 65% | 2582 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 38,580 psi | 60% | 2559 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 48,370 psi | 76% | 2654 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,037 psi | 75% | 2671 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,330 psi | 82% | 2690 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,948 psi | 42% | 1542 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 54,317 psi | 85% | 2717 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,016 psi | 63% | 2503 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,469 psi | 70% | 2677 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,085 psi | 57% | 2552 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 34,098 psi | 53% | 2480 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 36,535 psi | 57% | 2543 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 49,516 psi | 78% | 2621 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,337 psi | 68% | 2543 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 36,666 psi | 57% | 2464 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 86% | 42,496 psi | 67% | 2546 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 82% | 36,289 psi | 57% | 2425 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,687 psi | 72% | 2615 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,597 psi | 65% | 2530 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 41,452 psi | 65% | 2552 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,579 psi | 59% | 2513 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,862 psi | 73% | 2631 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,831 psi | 70% | 2605 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,630 psi | 73% | 2536 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,957 psi | 61% | 2408 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 40,480 psi | 63% | 2470 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 52,489 psi | 82% | 2720 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,427 psi | 73% | 2539 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,441 psi | 73% | 2625 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 37,536 psi | 59% | 2470 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 27,398 psi | 43% | 2316 fps | 96.8% |
| Somchem S385 | <<locked>> | 96% | 42,975 psi | 67% | 2615 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 52,533 psi | 82% | 2589 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,021 psi | 74% | 2526 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,888 psi | 67% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,366 psi | 68% | 2530 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,607 psi | 56% | 2408 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 33,895 psi | 53% | 2415 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 48,573 psi | 76% | 2638 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,887 psi | 66% | 2523 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 33,330 psi | 52% | 2415 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 88% | 30,255 psi | 47% | 2405 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,488 psi | 49% | 2339 fps | 97.1% |
| Winchester 748 | <<locked>> | 80% | 48,515 psi | 76% | 2684 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 42,380 psi | 66% | 2628 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,195 psi | 44% | 2405 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,396 psi | 70% | 2612 fps | 99.7% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 99 powders for .284 Win. loaded with the .284 | 150gr | Berger Classic Hybrid Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,910 fps; across all powders the maximum-charge window runs from 1,683 fps to 2,910 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 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 150.0 gr projectile in 0.284" calls for a 1:11.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.