Load Specifications
Bullet Manufacturer:Speer
Bullet Weight:160 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:1:12.5
Load data in caliber .284 Win. with .284 | 160gr | Speer Magnum Tip Soft Point bullet and 107 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>> | 82% | 56,478 psi | 89% | 2592 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,608 psi | 87% | 2618 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 57,203 psi | 90% | 2684 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 54,201 psi | 85% | 2635 fps | 98.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,224 psi | 72% | 2605 fps | 98.3% |
| Accurate 4064 | <<locked>> | 88% | 55,985 psi | 88% | 2671 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,869 psi | 88% | 2766 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 50,401 psi | 79% | 2782 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 84% | 55,637 psi | 87% | 2700 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,478 psi | 89% | 2700 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,650 psi | 84% | 2746 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,302 psi | 85% | 2644 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,637 psi | 87% | 2615 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,317 psi | 87% | 2818 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,869 psi | 89% | 2720 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 57,595 psi | 90% | 2746 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,623 psi | 89% | 2815 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,462 psi | 85% | 2795 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,634 psi | 82% | 2736 fps | 97.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 46,369 psi | 73% | 2677 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,729 psi | 69% | 2631 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,348 psi | 60% | 2539 fps | 97.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,255 psi | 77% | 2799 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,288 psi | 87% | 2717 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 54,288 psi | 85% | 2690 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 46,369 psi | 73% | 2677 fps | 96.1% |
| Bofors RP7 | <<locked>> | 94% | 57,464 psi | 90% | 2720 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,912 psi | 88% | 2628 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,566 psi | 90% | 2726 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,998 psi | 86% | 2707 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 94% | 54,955 psi | 86% | 2766 fps | 99% |
| Hodgdon H4350 | <<locked>> | 92% | 55,317 psi | 87% | 2726 fps | 98% |
| Hodgdon H4895 | <<locked>> | 84% | 56,217 psi | 88% | 2710 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,782 psi | 89% | 2740 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,898 psi | 88% | 2743 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,998 psi | 86% | 2799 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,085 psi | 57% | 1640 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 57,348 psi | 90% | 2710 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 56,550 psi | 89% | 2684 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,028 psi | 88% | 2684 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,825 psi | 87% | 2671 fps | 98.9% |
| IMR 4350 | <<locked>> | 96% | 54,592 psi | 86% | 2700 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,840 psi | 88% | 2700 fps | 98.9% |
| IMR 4831 | <<locked>> | 98% | 56,173 psi | 88% | 2753 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 55,259 psi | 87% | 2723 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 54,302 psi | 85% | 2644 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,608 psi | 87% | 2674 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,795 psi | 86% | 2628 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 56,043 psi | 88% | 2677 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,303 psi | 87% | 2694 fps | 99.6% |
| Lovex S070 | <<locked>> | 96% | 56,507 psi | 89% | 2730 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,508 psi | 60% | 2464 fps | 96.6% |
| Norma 201 | <<locked>> | 86% | 57,580 psi | 90% | 2687 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,042 psi | 86% | 2644 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,797 psi | 89% | 2733 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,114 psi | 86% | 2749 fps | 97.5% |
| Norma MRPᴾ | <<locked>> | 100% | 48,965 psi | 77% | 2756 fps | 98.1% |
| Norma URP | <<locked>> | 96% | 54,795 psi | 86% | 2753 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 57,566 psi | 90% | 2759 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,985 psi | 89% | 2802 fps | 99.6% |
| Ramshot TAC | <<locked>> | 82% | 54,476 psi | 85% | 2674 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,462 psi | 85% | 2687 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,550 psi | 57% | 1680 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,955 psi | 86% | 2690 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,563 psi | 86% | 2759 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,085 psi | 85% | 2792 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,564 psi | 87% | 2789 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,650 psi | 86% | 2815 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 55,303 psi | 87% | 2621 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,868 psi | 86% | 2644 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,667 psi | 90% | 2733 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 55,666 psi | 87% | 2723 fps | 96.6% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,576 psi | 81% | 2720 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 94% | 57,464 psi | 90% | 2720 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,303 psi | 87% | 2694 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,608 psi | 87% | 2674 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,043 psi | 88% | 2677 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,507 psi | 89% | 2730 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,608 psi | 87% | 2740 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,927 psi | 89% | 2707 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,537 psi | 90% | 2723 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,492 psi | 87% | 2579 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,130 psi | 88% | 2582 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,448 psi | 87% | 2651 fps | 98.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,082 psi | 80% | 2713 fps | 97.1% |
| Somchem S335 | <<locked>> | 84% | 54,955 psi | 86% | 2579 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,362 psi | 88% | 2690 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,740 psi | 90% | 2726 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 57,522 psi | 90% | 2717 fps | 96% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,782 psi | 89% | 2799 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,460 psi | 82% | 2703 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 84% | 55,883 psi | 88% | 2562 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,013 psi | 86% | 2605 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,317 psi | 87% | 2621 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,579 psi | 87% | 2657 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,072 psi | 89% | 2746 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,092 psi | 71% | 2569 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 82% | 54,795 psi | 86% | 2644 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 57,203 psi | 90% | 2667 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,101 psi | 88% | 2753 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,631 psi | 76% | 2703 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,985 psi | 89% | 2720 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,969 psi | 86% | 2690 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,955 psi | 86% | 2766 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,189 psi | 61% | 2661 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,711 psi | 90% | 2730 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 49,066 psi | 77% | 2638 fps | 96.3% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 53,113 psi | 83% | 2546 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,992 psi | 72% | 2487 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,476 psi | 84% | 2635 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,454 psi | 70% | 2474 fps | 96.2% |
| Accurate 3100 | <<locked>> | 92% | 35,143 psi | 55% | 2395 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 43,511 psi | 68% | 2490 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,387 psi | 51% | 2343 fps | 96.4% |
| Accurate High Country | <<locked>> | 98% | 47,021 psi | 74% | 2723 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 49,037 psi | 77% | 2602 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,756 psi | 65% | 2464 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 94% | 44,280 psi | 69% | 2585 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,140 psi | 80% | 2602 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,170 psi | 82% | 2572 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,005 psi | 71% | 2648 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,684 psi | 65% | 2484 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,672 psi | 70% | 2546 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,372 psi | 51% | 2352 fps | 96.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,085 psi | 57% | 2470 fps | 99.1% |
| Alliant Reloder-19 | <<locked>> | 94% | 43,685 psi | 68% | 2579 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 43,323 psi | 68% | 2621 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 84% | 26,585 psi | 42% | 2221 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,040 psi | 53% | 2434 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 88% | 32,314 psi | 51% | 2441 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,544 psi | 76% | 2615 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 41,495 psi | 65% | 2490 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 43,323 psi | 68% | 2621 fps | 95.2% |
| Bofors RP7 | <<locked>> | 82% | 39,494 psi | 62% | 2415 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,678 psi | 83% | 2582 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,444 psi | 79% | 2628 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,264 psi | 66% | 2500 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 84% | 39,363 psi | 62% | 2493 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 84% | 42,946 psi | 67% | 2516 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 49,559 psi | 78% | 2608 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,776 psi | 47% | 2257 fps | 97.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,948 psi | 72% | 2595 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 41,481 psi | 65% | 2562 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,731 psi | 42% | 1460 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,543 psi | 75% | 2566 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 49,777 psi | 78% | 2595 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,903 psi | 69% | 2493 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,151 psi | 72% | 2516 fps | 97.4% |
| IMR 4350 | <<locked>> | 86% | 39,943 psi | 63% | 2448 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,638 psi | 61% | 2398 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 31,357 psi | 49% | 2303 fps | 96% |
| IMR 4895 | <<locked>> | 80% | 45,788 psi | 72% | 2575 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 80% | 51,140 psi | 80% | 2602 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,849 psi | 77% | 2579 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,646 psi | 76% | 2536 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,005 psi | 69% | 2497 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,158 psi | 57% | 2352 fps | 96.1% |
| Lovex S070 | <<locked>> | 82% | 36,637 psi | 57% | 2382 fps | 95% |
| Lovex S071 | <<locked>> | 98% | 36,071 psi | 57% | 2415 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 48,051 psi | 75% | 2552 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,428 psi | 76% | 2552 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,019 psi | 69% | 2536 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 44,918 psi | 70% | 2582 fps | 95.2% |
| Norma MRP | <<locked>> | 94% | 39,900 psi | 63% | 2582 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 32,503 psi | 51% | 2343 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 80% | 43,787 psi | 69% | 2552 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 36,100 psi | 57% | 2431 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 51,140 psi | 80% | 2621 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,010 psi | 80% | 2638 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,224 psi | 43% | 1499 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,525 psi | 67% | 2484 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,776 psi | 75% | 2654 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,392 psi | 60% | 2530 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,053 psi | 50% | 2359 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 33,953 psi | 53% | 2415 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 52,069 psi | 82% | 2579 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,745 psi | 72% | 2507 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,102 psi | 61% | 2438 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 96% | 48,863 psi | 77% | 2615 fps | 95% |
| Rottweil R 905 | <<locked>> | 96% | 45,440 psi | 71% | 2618 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 82% | 39,494 psi | 62% | 2415 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,158 psi | 57% | 2352 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,849 psi | 77% | 2579 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,005 psi | 69% | 2497 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 36,637 psi | 57% | 2382 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,248 psi | 63% | 2493 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,530 psi | 78% | 2598 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,601 psi | 75% | 2575 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,023 psi | 77% | 2490 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,118 psi | 64% | 2369 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 37,637 psi | 59% | 2346 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 45,005 psi | 71% | 2612 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 48,791 psi | 76% | 2493 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,385 psi | 77% | 2592 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 39,856 psi | 62% | 2444 fps | 99.5% |
| Somchem S361 | <<locked>> | 98% | 53,795 psi | 84% | 2664 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 29,312 psi | 46% | 2303 fps | 98.4% |
| Somchem S385 | <<locked>> | 92% | 40,466 psi | 63% | 2493 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 49,472 psi | 78% | 2480 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,542 psi | 71% | 2477 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,818 psi | 72% | 2487 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,811 psi | 59% | 2379 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 33,939 psi | 53% | 2346 fps | 96.7% |
| Vihtavuori N165 | <<locked>> | 98% | 42,395 psi | 66% | 2520 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 51,184 psi | 80% | 2595 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,295 psi | 69% | 2484 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,446 psi | 52% | 2346 fps | 96.3% |
| Vihtavuori N555 | <<locked>> | 84% | 28,703 psi | 45% | 2293 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,518 psi | 53% | 2323 fps | 98.6% |
| Winchester 748 | <<locked>> | 80% | 51,430 psi | 81% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 39,624 psi | 62% | 2500 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,701 psi | 42% | 2300 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,311 psi | 74% | 2582 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 45,745 psi | 72% | 2582 fps | 95.5% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 107 powders for .284 Win. loaded with the .284 | 160gr | Speer Magnum Tip Soft Point. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,818 fps; across all powders the maximum-charge window runs from 1,640 fps to 2,818 fps. Accurate 3100 gives the best case fill at 100 %, and 107 of the 107 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:12.5 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.