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 Deep Curl Soft Point bullet and 106 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% | 56,391 psi | 88% | 2589 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,492 psi | 87% | 2615 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,840 psi | 89% | 2677 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,508 psi | 90% | 2680 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,180 psi | 72% | 2602 fps | 98.3% |
| Accurate 4064 | <<locked>> | 88% | 55,593 psi | 87% | 2664 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,796 psi | 87% | 2762 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 55,550 psi | 87% | 2697 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,405 psi | 88% | 2697 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,606 psi | 84% | 2746 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,201 psi | 85% | 2644 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,579 psi | 87% | 2612 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,288 psi | 87% | 2818 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,811 psi | 89% | 2720 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 57,188 psi | 90% | 2740 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,608 psi | 89% | 2815 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,389 psi | 85% | 2795 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,663 psi | 83% | 2733 fps | 97.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 46,093 psi | 72% | 2671 fps | 95.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,439 psi | 68% | 2625 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,319 psi | 60% | 2536 fps | 97% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,240 psi | 77% | 2799 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,303 psi | 87% | 2717 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 57,740 psi | 90% | 2736 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 46,093 psi | 72% | 2671 fps | 95.9% |
| Bofors RP7 | <<locked>> | 94% | 57,421 psi | 90% | 2720 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,840 psi | 88% | 2625 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,493 psi | 90% | 2723 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,607 psi | 86% | 2700 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 94% | 54,607 psi | 86% | 2759 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 92% | 54,969 psi | 86% | 2720 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 84% | 56,188 psi | 88% | 2707 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,782 psi | 89% | 2740 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,854 psi | 88% | 2740 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,042 psi | 86% | 2799 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,940 psi | 56% | 1637 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,956 psi | 89% | 2703 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 56,492 psi | 89% | 2680 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,985 psi | 88% | 2684 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,434 psi | 87% | 2664 fps | 98.9% |
| IMR 4350 | <<locked>> | 96% | 54,201 psi | 85% | 2694 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,463 psi | 87% | 2694 fps | 98.8% |
| IMR 4831 | <<locked>> | 98% | 56,173 psi | 88% | 2753 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 55,245 psi | 87% | 2720 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 54,201 psi | 85% | 2644 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,521 psi | 87% | 2671 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,737 psi | 86% | 2625 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,999 psi | 88% | 2677 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,303 psi | 87% | 2690 fps | 99.6% |
| Lovex S070 | <<locked>> | 96% | 56,521 psi | 89% | 2730 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,174 psi | 60% | 2457 fps | 96.4% |
| Norma 201 | <<locked>> | 86% | 57,522 psi | 90% | 2687 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,621 psi | 86% | 2638 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,391 psi | 88% | 2726 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,781 psi | 86% | 2743 fps | 97.4% |
| Norma MRPᴾ | <<locked>> | 100% | 48,646 psi | 76% | 2749 fps | 98% |
| Norma URP | <<locked>> | 96% | 54,752 psi | 86% | 2749 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 57,188 psi | 90% | 2756 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,971 psi | 89% | 2799 fps | 99.6% |
| Ramshot TAC | <<locked>> | 82% | 54,447 psi | 85% | 2671 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,711 psi | 90% | 2733 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,680 psi | 57% | 1680 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,940 psi | 86% | 2687 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,505 psi | 85% | 2756 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,070 psi | 85% | 2792 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,506 psi | 87% | 2785 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,273 psi | 85% | 2812 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 55,187 psi | 86% | 2618 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,810 psi | 86% | 2641 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,580 psi | 90% | 2730 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 55,259 psi | 87% | 2717 fps | 96.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,590 psi | 81% | 2717 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 94% | 57,421 psi | 90% | 2720 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,303 psi | 87% | 2690 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,521 psi | 87% | 2671 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,999 psi | 88% | 2677 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,521 psi | 89% | 2730 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,579 psi | 87% | 2740 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,550 psi | 89% | 2700 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,464 psi | 90% | 2720 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,448 psi | 87% | 2579 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,724 psi | 87% | 2579 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,434 psi | 87% | 2648 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,097 psi | 80% | 2713 fps | 97.1% |
| Somchem S335 | <<locked>> | 84% | 54,868 psi | 86% | 2575 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,333 psi | 88% | 2690 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,711 psi | 90% | 2726 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 57,508 psi | 90% | 2713 fps | 96% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,739 psi | 89% | 2799 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,141 psi | 82% | 2697 fps | 98% |
| Vihtavuori N133 | <<locked>> | 84% | 55,840 psi | 88% | 2562 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,911 psi | 86% | 2605 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,288 psi | 87% | 2618 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,564 psi | 87% | 2654 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,058 psi | 89% | 2743 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,092 psi | 71% | 2569 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 82% | 54,723 psi | 86% | 2644 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,826 psi | 89% | 2664 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,072 psi | 88% | 2749 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,573 psi | 76% | 2700 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,971 psi | 89% | 2717 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,940 psi | 86% | 2690 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,926 psi | 86% | 2766 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,160 psi | 61% | 2661 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,334 psi | 90% | 2726 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 49,124 psi | 77% | 2638 fps | 96.3% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 53,011 psi | 83% | 2546 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,919 psi | 72% | 2487 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,113 psi | 83% | 2631 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,440 psi | 70% | 2474 fps | 96.1% |
| Accurate 3100 | <<locked>> | 92% | 35,070 psi | 55% | 2392 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 43,424 psi | 68% | 2490 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,314 psi | 51% | 2343 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 80% | 48,994 psi | 77% | 2598 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,684 psi | 65% | 2461 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 94% | 44,251 psi | 69% | 2582 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,039 psi | 80% | 2598 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,098 psi | 82% | 2569 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,947 psi | 70% | 2648 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,582 psi | 65% | 2480 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,570 psi | 70% | 2546 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,314 psi | 51% | 2352 fps | 96.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,042 psi | 56% | 2470 fps | 99.1% |
| Alliant Reloder-19 | <<locked>> | 94% | 43,627 psi | 68% | 2579 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 98% | 43,337 psi | 68% | 2618 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 84% | 26,527 psi | 42% | 2218 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 96% | 33,808 psi | 53% | 2425 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 88% | 32,314 psi | 51% | 2438 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,225 psi | 76% | 2608 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 41,423 psi | 65% | 2487 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 43,337 psi | 68% | 2618 fps | 95.1% |
| Bofors RP7 | <<locked>> | 84% | 41,901 psi | 66% | 2464 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,344 psi | 82% | 2575 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,372 psi | 79% | 2625 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,177 psi | 66% | 2497 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 84% | 39,349 psi | 62% | 2493 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 84% | 42,612 psi | 67% | 2510 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 49,472 psi | 78% | 2608 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,718 psi | 47% | 2257 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,585 psi | 71% | 2585 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 41,423 psi | 65% | 2562 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,803 psi | 42% | 1463 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,195 psi | 74% | 2559 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 49,705 psi | 78% | 2592 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,830 psi | 69% | 2493 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,122 psi | 72% | 2513 fps | 97.3% |
| IMR 4350 | <<locked>> | 86% | 39,929 psi | 63% | 2448 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,551 psi | 60% | 2395 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 31,270 psi | 49% | 2300 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 45,701 psi | 72% | 2572 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 80% | 51,039 psi | 80% | 2598 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,457 psi | 76% | 2572 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,312 psi | 76% | 2530 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 43,656 psi | 68% | 2490 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,114 psi | 57% | 2349 fps | 96.1% |
| Lovex S070 | <<locked>> | 84% | 38,899 psi | 61% | 2428 fps | 95.7% |
| Lovex S071 | <<locked>> | 98% | 36,013 psi | 56% | 2411 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 47,979 psi | 75% | 2549 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,370 psi | 76% | 2549 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,947 psi | 69% | 2533 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 44,875 psi | 70% | 2579 fps | 95.1% |
| Norma MRP | <<locked>> | 94% | 39,885 psi | 63% | 2582 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 32,416 psi | 51% | 2339 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 80% | 43,729 psi | 69% | 2549 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 36,027 psi | 56% | 2431 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 50,792 psi | 80% | 2615 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,647 psi | 79% | 2631 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,311 psi | 43% | 1499 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,235 psi | 66% | 2477 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,355 psi | 74% | 2648 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,319 psi | 60% | 2526 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,981 psi | 50% | 2356 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 33,910 psi | 53% | 2411 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 52,011 psi | 82% | 2575 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,687 psi | 72% | 2507 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,030 psi | 61% | 2438 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 96% | 48,834 psi | 77% | 2615 fps | 95% |
| Rottweil R 905 | <<locked>> | 96% | 45,092 psi | 71% | 2608 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 84% | 41,901 psi | 66% | 2464 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,114 psi | 57% | 2349 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,457 psi | 76% | 2572 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,656 psi | 68% | 2490 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 38,899 psi | 61% | 2428 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,958 psi | 63% | 2484 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,458 psi | 78% | 2595 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,268 psi | 74% | 2569 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,965 psi | 77% | 2490 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,060 psi | 64% | 2369 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 37,536 psi | 59% | 2343 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 44,686 psi | 70% | 2605 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 48,747 psi | 76% | 2493 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,081 psi | 77% | 2585 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 39,784 psi | 62% | 2441 fps | 99.5% |
| Somchem S361 | <<locked>> | 98% | 53,853 psi | 84% | 2664 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 29,254 psi | 46% | 2300 fps | 98.4% |
| Somchem S385 | <<locked>> | 92% | 40,190 psi | 63% | 2490 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 49,414 psi | 77% | 2477 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,411 psi | 71% | 2474 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,774 psi | 72% | 2487 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,753 psi | 59% | 2375 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 33,866 psi | 53% | 2343 fps | 96.6% |
| Vihtavuori N165 | <<locked>> | 98% | 42,119 psi | 66% | 2513 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 51,140 psi | 80% | 2595 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,208 psi | 69% | 2484 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,359 psi | 52% | 2343 fps | 96.2% |
| Vihtavuori N555 | <<locked>> | 84% | 28,645 psi | 45% | 2293 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,257 psi | 52% | 2316 fps | 98.5% |
| Winchester 748 | <<locked>> | 80% | 51,329 psi | 80% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 39,349 psi | 62% | 2493 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,498 psi | 42% | 2293 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,949 psi | 74% | 2575 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 45,716 psi | 72% | 2579 fps | 95.5% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 120 powders for .284 Win. loaded with the .284 | 160gr | Speer Deep Curl 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 1,637 fps to 2,818 fps. Accurate 3100 gives the best case fill at 100 %, and 120 of the 120 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 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, Accurate MAGPRO 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. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.