Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:166 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 | 166gr | Peregrine VRG-2 bullet and 109 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.
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% | 55,492 psi | 87% | 2530 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,624 psi | 90% | 2592 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,869 psi | 88% | 2615 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,956 psi | 89% | 2625 fps | 98.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,918 psi | 70% | 2539 fps | 98.3% |
| Accurate 4064 | <<locked>> | 88% | 54,259 psi | 85% | 2602 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,737 psi | 86% | 2700 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 49,197 psi | 77% | 2717 fps | 96% |
| ADI AR 2206H | <<locked>> | 84% | 54,694 psi | 86% | 2635 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,811 psi | 87% | 2638 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,750 psi | 83% | 2684 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,101 psi | 89% | 2631 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,795 psi | 86% | 2552 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,447 psi | 85% | 2753 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,547 psi | 82% | 2680 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,043 psi | 88% | 2657 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,434 psi | 88% | 2680 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,941 psi | 88% | 2753 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 57,348 psi | 90% | 2782 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,764 psi | 81% | 2674 fps | 97.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 45,440 psi | 71% | 2615 fps | 96.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,641 psi | 67% | 2566 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,347 psi | 59% | 2474 fps | 97.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,124 psi | 75% | 2733 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,389 psi | 85% | 2651 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 56,536 psi | 89% | 2671 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 45,440 psi | 71% | 2615 fps | 96.1% |
| Bofors RP7 | <<locked>> | 94% | 56,521 psi | 89% | 2657 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,969 psi | 86% | 2566 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 56,782 psi | 89% | 2664 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 57,392 psi | 90% | 2690 fps | 100% |
| Hodgdon H414 | <<locked>> | 96% | 57,406 psi | 90% | 2749 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 92% | 54,505 psi | 85% | 2664 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 84% | 55,288 psi | 87% | 2644 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,057 psi | 88% | 2680 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,868 psi | 86% | 2674 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,288 psi | 85% | 2740 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,752 psi | 56% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,594 psi | 89% | 2648 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,434 psi | 87% | 2618 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,245 psi | 87% | 2621 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,824 psi | 86% | 2608 fps | 99% |
| IMR 4350 | <<locked>> | 98% | 56,971 psi | 89% | 2684 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,998 psi | 86% | 2638 fps | 98.9% |
| IMR 4831 | <<locked>> | 98% | 55,361 psi | 87% | 2694 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 54,360 psi | 85% | 2657 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 57,101 psi | 89% | 2631 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,549 psi | 85% | 2608 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,319 psi | 90% | 2612 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,056 psi | 86% | 2615 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,288 psi | 85% | 2628 fps | 99.6% |
| Lovex S070 | <<locked>> | 96% | 55,230 psi | 87% | 2664 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,028 psi | 58% | 2395 fps | 96.4% |
| Norma 201 | <<locked>> | 86% | 56,478 psi | 89% | 2625 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,508 psi | 90% | 2625 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,622 psi | 87% | 2667 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,244 psi | 85% | 2687 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 47,790 psi | 75% | 2690 fps | 98.1% |
| Norma URP | <<locked>> | 98% | 57,551 psi | 90% | 2736 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 56,376 psi | 88% | 2694 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,086 psi | 88% | 2740 fps | 99.7% |
| Ramshot TAC | <<locked>> | 84% | 57,159 psi | 90% | 2661 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,116 psi | 90% | 2674 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,477 psi | 57% | 1640 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 53,998 psi | 85% | 2628 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 57,334 psi | 90% | 2746 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,869 psi | 89% | 2776 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,462 psi | 85% | 2723 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 57,421 psi | 90% | 2805 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 57,246 psi | 90% | 2598 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,203 psi | 90% | 2625 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 56,391 psi | 88% | 2664 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,694 psi | 86% | 2657 fps | 96.6% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,560 psi | 79% | 2654 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 94% | 56,521 psi | 89% | 2657 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,288 psi | 85% | 2628 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,549 psi | 85% | 2608 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,056 psi | 86% | 2615 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,230 psi | 87% | 2664 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,752 psi | 86% | 2677 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,825 psi | 87% | 2641 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,550 psi | 89% | 2657 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,766 psi | 86% | 2520 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,998 psi | 86% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,520 psi | 85% | 2589 fps | 98.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,082 psi | 78% | 2651 fps | 97.2% |
| Somchem S335 | <<locked>> | 86% | 57,290 psi | 90% | 2556 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,419 psi | 87% | 2628 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 56,623 psi | 89% | 2661 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 56,507 psi | 89% | 2654 fps | 96.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,695 psi | 87% | 2733 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,430 psi | 81% | 2638 fps | 98.2% |
| Vihtavuori N130 | <<locked>> | 82% | 57,725 psi | 90% | 2516 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 55,230 psi | 87% | 2503 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,435 psi | 90% | 2585 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,476 psi | 85% | 2559 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,534 psi | 85% | 2595 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,289 psi | 88% | 2684 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,121 psi | 69% | 2507 fps | 96.2% |
| Vihtavuori N530 | <<locked>> | 84% | 57,392 psi | 90% | 2628 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,159 psi | 88% | 2605 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,998 psi | 86% | 2687 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,340 psi | 74% | 2635 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,246 psi | 88% | 2657 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,143 psi | 85% | 2631 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 57,740 psi | 90% | 2753 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,203 psi | 60% | 2595 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 56,739 psi | 89% | 2667 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 48,225 psi | 76% | 2579 fps | 96.4% |
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% | 52,069 psi | 82% | 2484 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,512 psi | 70% | 2421 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,402 psi | 82% | 2572 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,540 psi | 68% | 2415 fps | 96.2% |
| Accurate 3100 | <<locked>> | 92% | 33,881 psi | 53% | 2329 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 42,134 psi | 66% | 2425 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,053 psi | 49% | 2274 fps | 96.2% |
| Accurate High Country | <<locked>> | 98% | 46,064 psi | 72% | 2664 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 47,979 psi | 75% | 2536 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,017 psi | 64% | 2405 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 43,468 psi | 68% | 2526 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,111 psi | 79% | 2536 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,256 psi | 80% | 2510 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,208 psi | 69% | 2589 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 43,395 psi | 68% | 2526 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,785 psi | 64% | 2425 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,540 psi | 68% | 2480 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,575 psi | 49% | 2293 fps | 96.5% |
| Alliant Reloder-17 | 42.6 gr | 80% | 35,157 psi | 55% | 2408 fps | 99.1% |
| Alliant Reloder-19 | <<locked>> | 94% | 42,844 psi | 67% | 2520 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 42,322 psi | 66% | 2556 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,744 psi | 40% | 2162 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 96% | 32,967 psi | 52% | 2369 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 88% | 31,328 psi | 49% | 2375 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,456 psi | 74% | 2549 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 40,466 psi | 63% | 2428 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 42,322 psi | 66% | 2556 fps | 95.2% |
| Bofors RP7 | <<locked>> | 82% | 38,667 psi | 61% | 2356 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,692 psi | 81% | 2520 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,458 psi | 78% | 2566 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,118 psi | 64% | 2434 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 84% | 38,493 psi | 60% | 2434 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 84% | 41,843 psi | 66% | 2454 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 48,457 psi | 76% | 2543 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,877 psi | 45% | 2198 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,976 psi | 70% | 2530 fps | 100% |
| Hodgdon Superformance | 48.4 gr | 86% | 40,393 psi | 63% | 2497 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 42% | 1427 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,601 psi | 73% | 2500 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 48,834 psi | 77% | 2530 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,076 psi | 68% | 2434 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,223 psi | 71% | 2454 fps | 97.4% |
| IMR 4350 | <<locked>> | 86% | 39,146 psi | 61% | 2388 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,898 psi | 59% | 2343 fps | 95.3% |
| IMR 4831 | <<locked>> | 80% | 30,414 psi | 48% | 2244 fps | 96% |
| IMR 4895 | <<locked>> | 80% | 44,643 psi | 70% | 2510 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 80% | 50,111 psi | 79% | 2536 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,616 psi | 75% | 2513 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,659 psi | 75% | 2470 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 42,757 psi | 67% | 2428 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,215 psi | 55% | 2293 fps | 96.1% |
| Lovex S070 | <<locked>> | 84% | 37,855 psi | 59% | 2369 fps | 95.8% |
| Lovex S071 | <<locked>> | 98% | 34,824 psi | 55% | 2349 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 47,065 psi | 74% | 2490 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,572 psi | 75% | 2490 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,917 psi | 67% | 2470 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 44,019 psi | 69% | 2520 fps | 95.3% |
| Norma MRP | <<locked>> | 94% | 38,841 psi | 61% | 2516 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 31,604 psi | 50% | 2280 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 80% | 42,931 psi | 67% | 2490 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 35,244 psi | 55% | 2372 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 50,038 psi | 78% | 2556 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,850 psi | 78% | 2572 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,122 psi | 43% | 1463 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,597 psi | 65% | 2421 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,731 psi | 73% | 2589 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,507 psi | 59% | 2464 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,995 psi | 49% | 2293 fps | 95.7% |
| ReloadSwiss RS 70 | 44.4 gr | 82% | 33,127 psi | 52% | 2356 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 50,836 psi | 80% | 2513 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,701 psi | 70% | 2444 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,014 psi | 60% | 2375 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 96% | 48,080 psi | 75% | 2556 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 94% | 41,408 psi | 65% | 2497 fps | 95% |
| Rottweil R 907 | <<locked>> | 82% | 38,667 psi | 61% | 2356 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,215 psi | 55% | 2293 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,616 psi | 75% | 2513 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,757 psi | 67% | 2428 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 37,855 psi | 59% | 2369 fps | 95.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,291 psi | 62% | 2428 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,530 psi | 76% | 2536 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,659 psi | 73% | 2513 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,138 psi | 75% | 2431 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,248 psi | 63% | 2310 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,796 psi | 58% | 2290 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,845 psi | 69% | 2546 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 47,935 psi | 75% | 2434 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,269 psi | 76% | 2526 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 38,856 psi | 61% | 2382 fps | 99.5% |
| Somchem S361 | <<locked>> | 98% | 52,750 psi | 83% | 2602 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 28,195 psi | 44% | 2238 fps | 98.3% |
| Somchem S385 | <<locked>> | 92% | 39,436 psi | 62% | 2434 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 54,201 psi | 85% | 2477 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,646 psi | 76% | 2418 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,454 psi | 70% | 2415 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,020 psi | 71% | 2428 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,927 psi | 58% | 2320 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 32,880 psi | 52% | 2280 fps | 96.6% |
| Vihtavuori N165 | <<locked>> | 98% | 41,350 psi | 65% | 2457 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 50,488 psi | 79% | 2536 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,250 psi | 68% | 2421 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,372 psi | 51% | 2283 fps | 96.2% |
| Vihtavuori N555 | <<locked>> | 84% | 27,543 psi | 43% | 2228 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,489 psi | 51% | 2260 fps | 98.5% |
| Winchester 748 | <<locked>> | 80% | 50,444 psi | 79% | 2579 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 38,493 psi | 60% | 2434 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,657 psi | 40% | 2234 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,398 psi | 73% | 2520 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 44,788 psi | 70% | 2520 fps | 95.6% |
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 109 powders for .284 Win. loaded with the .284 | 166gr | Peregrine VRG-2. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,805 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,805 fps. Accurate 3100 gives the best case fill at 100 %, and 109 of the 109 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 166.0 gr projectile in 0.284" calls for a 1:11.0 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .284 Win. with the .284 | 166gr | Peregrine VRG-2 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.