Load Specifications
Bullet:.284 | 156gr | Norma ORYX
Bullet Manufacturer:Norma
Bullet Weight:156 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:1:13.5
Load data in caliber .284 Win. with .284 | 156gr | Norma ORYX bullet and 104 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, 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>> | 82% | 56,231 psi | 88% | 2625 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,506 psi | 87% | 2654 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,768 psi | 89% | 2717 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,290 psi | 90% | 2717 fps | 98.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,093 psi | 72% | 2638 fps | 98.2% |
| Accurate 4064 | <<locked>> | 88% | 55,506 psi | 87% | 2703 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,434 psi | 87% | 2795 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 55,230 psi | 87% | 2733 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,362 psi | 88% | 2736 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,548 psi | 84% | 2779 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,551 psi | 90% | 2730 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,361 psi | 87% | 2651 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,042 psi | 86% | 2851 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,666 psi | 89% | 2756 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 57,043 psi | 89% | 2779 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,246 psi | 88% | 2848 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,041 psi | 85% | 2831 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,562 psi | 82% | 2769 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,366 psi | 68% | 2657 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,232 psi | 60% | 2569 fps | 96.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,936 psi | 77% | 2828 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,129 psi | 86% | 2753 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 57,522 psi | 90% | 2776 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 57,246 psi | 90% | 2753 fps | 98.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,637 psi | 87% | 2664 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,363 psi | 90% | 2762 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,462 psi | 85% | 2736 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 94% | 54,549 psi | 85% | 2799 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 92% | 55,042 psi | 86% | 2759 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 84% | 55,825 psi | 87% | 2743 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,405 psi | 88% | 2776 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,680 psi | 87% | 2776 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,766 psi | 86% | 2831 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,911 psi | 56% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,913 psi | 89% | 2743 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 56,202 psi | 88% | 2720 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,637 psi | 87% | 2717 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,419 psi | 87% | 2703 fps | 98.8% |
| IMR 4350 | <<locked>> | 98% | 57,537 psi | 90% | 2779 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,317 psi | 87% | 2726 fps | 98.7% |
| IMR 4831 | <<locked>> | 98% | 56,115 psi | 88% | 2789 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 55,143 psi | 86% | 2759 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 57,551 psi | 90% | 2730 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,172 psi | 86% | 2707 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,505 psi | 85% | 2661 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,637 psi | 87% | 2710 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,071 psi | 86% | 2726 fps | 99.5% |
| Lovex S070 | <<locked>> | 96% | 56,188 psi | 88% | 2762 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,218 psi | 60% | 2490 fps | 96.2% |
| Norma 201 | <<locked>> | 86% | 57,566 psi | 90% | 2726 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,679 psi | 86% | 2677 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,289 psi | 88% | 2766 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,694 psi | 86% | 2779 fps | 97.2% |
| Norma MRPᴾ | <<locked>> | 100% | 48,733 psi | 76% | 2789 fps | 97.8% |
| Norma URP | <<locked>> | 96% | 54,433 psi | 85% | 2785 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 56,898 psi | 89% | 2789 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,811 psi | 89% | 2835 fps | 99.5% |
| Ramshot TAC | <<locked>> | 82% | 54,056 psi | 85% | 2703 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,537 psi | 90% | 2769 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,637 psi | 57% | 1709 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,737 psi | 86% | 2723 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,070 psi | 85% | 2789 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 57,522 psi | 90% | 2877 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,361 psi | 87% | 2822 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,462 psi | 85% | 2851 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 55,071 psi | 86% | 2657 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,505 psi | 85% | 2677 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,392 psi | 90% | 2766 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 55,201 psi | 87% | 2753 fps | 96.3% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,445 psi | 81% | 2753 fps | 97% |
| Rottweil R 907 | <<locked>> | 94% | 57,246 psi | 90% | 2753 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,071 psi | 86% | 2726 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,172 psi | 86% | 2707 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,637 psi | 87% | 2710 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,188 psi | 88% | 2762 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,332 psi | 87% | 2776 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,391 psi | 88% | 2736 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,058 psi | 89% | 2753 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,259 psi | 87% | 2615 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,753 psi | 87% | 2615 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,187 psi | 86% | 2680 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,952 psi | 80% | 2749 fps | 96.9% |
| Somchem S335 | <<locked>> | 84% | 54,636 psi | 86% | 2612 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,159 psi | 88% | 2726 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,551 psi | 90% | 2762 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 57,188 psi | 90% | 2746 fps | 95.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,594 psi | 89% | 2835 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,967 psi | 81% | 2730 fps | 97.9% |
| Vihtavuori N133 | <<locked>> | 84% | 55,651 psi | 87% | 2598 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,679 psi | 86% | 2641 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,245 psi | 87% | 2657 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,361 psi | 87% | 2694 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,666 psi | 89% | 2776 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,005 psi | 71% | 2602 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 82% | 54,433 psi | 85% | 2680 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,652 psi | 89% | 2700 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,680 psi | 87% | 2782 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,225 psi | 76% | 2733 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,811 psi | 89% | 2756 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,853 psi | 86% | 2730 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,549 psi | 85% | 2799 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,972 psi | 61% | 2690 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,145 psi | 90% | 2762 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 48,936 psi | 77% | 2671 fps | 96.1% |
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% | 52,591 psi | 82% | 2579 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,745 psi | 72% | 2520 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,113 psi | 83% | 2667 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,193 psi | 69% | 2503 fps | 95.9% |
| Accurate 3100 | <<locked>> | 92% | 34,925 psi | 55% | 2421 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 43,294 psi | 68% | 2523 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,140 psi | 50% | 2369 fps | 96% |
| ADI AR 2206H | <<locked>> | 80% | 48,791 psi | 76% | 2635 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 41,321 psi | 65% | 2490 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 96% | 47,079 psi | 74% | 2671 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,850 psi | 80% | 2635 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,909 psi | 81% | 2608 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,657 psi | 70% | 2680 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,437 psi | 65% | 2513 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,440 psi | 70% | 2579 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,227 psi | 51% | 2382 fps | 96.1% |
| Alliant Reloder-17 | 44.4 gr | 80% | 36,027 psi | 56% | 2503 fps | 98.9% |
| Alliant Reloder-19 | <<locked>> | 96% | 46,064 psi | 72% | 2657 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 86% | 28,152 psi | 44% | 2300 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 98% | 35,824 psi | 56% | 2510 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 88% | 32,097 psi | 50% | 2464 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,138 psi | 75% | 2644 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 41,220 psi | 65% | 2520 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 41,959 psi | 66% | 2497 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,199 psi | 82% | 2615 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,009 psi | 78% | 2657 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,974 psi | 66% | 2530 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 84% | 39,262 psi | 62% | 2526 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 86% | 45,223 psi | 71% | 2595 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 49,284 psi | 77% | 2644 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,646 psi | 46% | 2287 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,571 psi | 71% | 2625 fps | 100% |
| Hodgdon Superformance | 50.4 gr | 86% | 41,205 psi | 65% | 2592 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 42% | 1483 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,021 psi | 74% | 2595 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 49,530 psi | 78% | 2628 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,424 psi | 68% | 2520 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,919 psi | 72% | 2546 fps | 97.1% |
| IMR 4350 | <<locked>> | 88% | 42,322 psi | 66% | 2530 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,799 psi | 64% | 2477 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 31,169 psi | 49% | 2329 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 45,513 psi | 71% | 2605 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 50,850 psi | 80% | 2635 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,515 psi | 76% | 2612 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,211 psi | 76% | 2566 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 43,526 psi | 68% | 2523 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,984 psi | 56% | 2382 fps | 95.8% |
| Lovex S070 | <<locked>> | 84% | 38,653 psi | 61% | 2457 fps | 95.4% |
| Lovex S071 | <<locked>> | 98% | 35,824 psi | 56% | 2441 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 47,848 psi | 75% | 2585 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,225 psi | 76% | 2585 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,787 psi | 69% | 2566 fps | 99.6% |
| Norma 204 | <<locked>> | 92% | 47,761 psi | 75% | 2667 fps | 95.7% |
| Norma MRP | <<locked>> | 94% | 39,566 psi | 62% | 2605 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 32,285 psi | 51% | 2369 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 43,439 psi | 68% | 2582 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 35,781 psi | 56% | 2457 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 50,763 psi | 80% | 2651 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,604 psi | 79% | 2667 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,166 psi | 43% | 1522 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,264 psi | 66% | 2513 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,384 psi | 74% | 2687 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,305 psi | 60% | 2562 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,763 psi | 50% | 2382 fps | 95.4% |
| ReloadSwiss RS 70 | 46.2 gr | 82% | 33,852 psi | 53% | 2441 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 51,924 psi | 81% | 2612 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,556 psi | 71% | 2539 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,885 psi | 61% | 2470 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 98% | 51,924 psi | 81% | 2700 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 96% | 45,107 psi | 71% | 2644 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 84% | 41,959 psi | 66% | 2497 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,984 psi | 56% | 2382 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,515 psi | 76% | 2612 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,526 psi | 68% | 2523 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 38,653 psi | 61% | 2457 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,987 psi | 63% | 2520 fps | 99.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,443 psi | 77% | 2631 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,311 psi | 74% | 2608 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,907 psi | 77% | 2526 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,988 psi | 64% | 2402 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,972 psi | 63% | 2425 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 44,686 psi | 70% | 2641 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 48,631 psi | 76% | 2530 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,023 psi | 77% | 2621 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 39,668 psi | 62% | 2474 fps | 99.4% |
| Somchem S361 | <<locked>> | 98% | 53,621 psi | 84% | 2694 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 29,109 psi | 46% | 2329 fps | 98.1% |
| Somchem S385 | <<locked>> | 92% | 40,234 psi | 63% | 2523 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 49,327 psi | 77% | 2513 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,353 psi | 71% | 2513 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,614 psi | 71% | 2520 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,608 psi | 59% | 2408 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 33,721 psi | 53% | 2372 fps | 96.4% |
| Vihtavuori N165 | <<locked>> | 98% | 42,047 psi | 66% | 2546 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 50,908 psi | 80% | 2628 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,019 psi | 69% | 2516 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,199 psi | 52% | 2372 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 84% | 28,485 psi | 45% | 2316 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,228 psi | 52% | 2346 fps | 98.3% |
| Winchester 748 | <<locked>> | 80% | 51,329 psi | 80% | 2680 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 39,262 psi | 62% | 2526 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,397 psi | 41% | 2316 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,963 psi | 74% | 2612 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 45,629 psi | 72% | 2615 fps | 95.2% |
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 104 powders for .284 Win. loaded with the .284 | 156gr | Norma ORYX. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,877 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,877 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 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 156.0 gr projectile in 0.284" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .284 Win. with the .284 | 156gr | Norma ORYX 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.