Load Specifications
Bullet Manufacturer:Nosler
Bullet Weight:140 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 | 140gr | Nosler CT FailSafe bullet and 99 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and Hodgdon Superformance.
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>> | 84% | 55,390 psi | 87% | 2766 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 57,232 psi | 90% | 2838 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 57,450 psi | 90% | 2831 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,666 psi | 87% | 2851 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,579 psi | 89% | 2835 fps | 97.2% |
| Accurate 4064 | <<locked>> | 92% | 57,566 psi | 90% | 2881 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 57,667 psi | 90% | 2972 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 54,505 psi | 85% | 2864 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 55,376 psi | 87% | 2864 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 57,000 psi | 89% | 2867 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 54,346 psi | 85% | 2792 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 53,751 psi | 84% | 2976 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,274 psi | 87% | 2884 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,086 psi | 88% | 2910 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,940 psi | 86% | 2969 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,173 psi | 88% | 3009 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,262 psi | 62% | 2700 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,845 psi | 69% | 2861 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,099 psi | 85% | 2877 fps | 99.6% |
| Bofors RP3 | <<locked>> | 92% | 56,202 psi | 88% | 2904 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,072 psi | 88% | 2871 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,998 psi | 86% | 2795 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,246 psi | 88% | 2894 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,723 psi | 86% | 2943 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 57,493 psi | 90% | 2854 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 57,130 psi | 90% | 2917 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 98% | 56,391 psi | 88% | 2963 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 96% | 57,261 psi | 90% | 2927 fps | 97% |
| Hodgdon H4895 | <<locked>> | 86% | 55,056 psi | 86% | 2877 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,039 psi | 80% | 2844 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 54,375 psi | 85% | 2907 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,421 psi | 90% | 3005 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,476 psi | 56% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,260 psi | 88% | 2877 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,839 psi | 86% | 2854 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,984 psi | 86% | 2848 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,969 psi | 86% | 2825 fps | 97.7% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,420 psi | 88% | 2897 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,636 psi | 86% | 2851 fps | 97.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,157 psi | 85% | 2904 fps | 99.6% |
| IMR 4895 | <<locked>> | 90% | 57,522 psi | 90% | 2940 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 57,000 psi | 89% | 2867 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 57,217 psi | 90% | 2851 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,740 psi | 90% | 2890 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 57,116 psi | 90% | 2838 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 54,795 psi | 86% | 2844 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 57,392 psi | 90% | 2894 fps | 99.1% |
| Lovex S070 | <<locked>> | 98% | 54,679 psi | 86% | 2874 fps | 97.9% |
| Norma 201 | <<locked>> | 88% | 56,565 psi | 89% | 2861 fps | 100% |
| Norma 202 | <<locked>> | 88% | 57,276 psi | 90% | 2861 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,259 psi | 87% | 2897 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 57,203 psi | 90% | 2946 fps | 96.4% |
| Norma URPᴾ | <<locked>> | 100% | 56,333 psi | 88% | 2956 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 90% | 55,840 psi | 88% | 2920 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,129 psi | 86% | 2953 fps | 98.6% |
| Ramshot TAC | <<locked>> | 86% | 57,159 psi | 90% | 2887 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,942 psi | 89% | 2907 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,288 psi | 85% | 2815 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,114 psi | 57% | 1795 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,275 psi | 88% | 2844 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 57,406 psi | 90% | 2897 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,391 psi | 88% | 2972 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,927 psi | 88% | 3009 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 57,188 psi | 90% | 2992 fps | 99.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,782 psi | 89% | 3022 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 86% | 57,537 psi | 90% | 2841 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 57,188 psi | 90% | 2861 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,724 psi | 87% | 2890 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 56,072 psi | 88% | 2871 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 98% | 57,392 psi | 90% | 2894 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,740 psi | 90% | 2890 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,795 psi | 86% | 2844 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,679 psi | 86% | 2874 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,682 psi | 90% | 2953 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,796 psi | 87% | 2867 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,173 psi | 88% | 2887 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,708 psi | 86% | 2749 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,911 psi | 86% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,360 psi | 85% | 2795 fps | 97.6% |
| Somchem S321 | <<locked>> | 82% | 54,404 psi | 85% | 2844 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 57,406 psi | 90% | 2792 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,172 psi | 86% | 2854 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 56,130 psi | 88% | 2890 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,705 psi | 79% | 2907 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 54,447 psi | 85% | 2713 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,955 psi | 86% | 2736 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,840 psi | 89% | 2818 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,143 psi | 85% | 2789 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,740 psi | 90% | 2867 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,317 psi | 87% | 2897 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 86% | 57,246 psi | 90% | 2861 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,825 psi | 87% | 2835 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,201 psi | 85% | 2900 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,975 psi | 67% | 2779 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,506 psi | 87% | 2874 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 57,522 psi | 90% | 2913 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,768 psi | 89% | 2969 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,186 psi | 55% | 2700 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,057 psi | 88% | 2894 fps | 100% |
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% | 48,704 psi | 76% | 2671 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,606 psi | 84% | 2789 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,684 psi | 65% | 2598 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,675 psi | 76% | 2749 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,528 psi | 73% | 2671 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 39,421 psi | 62% | 2592 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 35,491 psi | 56% | 2575 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 45,078 psi | 71% | 2707 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 38,174 psi | 60% | 2549 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,108 psi | 74% | 2713 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,442 psi | 74% | 2697 fps | 100% |
| Alliant Power Pro 2000-MR | 45 gr | 80% | 40,843 psi | 64% | 2733 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,956 psi | 59% | 2575 fps | 98.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,799 psi | 64% | 2641 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,607 psi | 56% | 2585 fps | 95.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,851 psi | 51% | 2543 fps | 96.7% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,763 psi | 48% | 2484 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 38,000 psi | 60% | 2730 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,222 psi | 69% | 2707 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 37,507 psi | 59% | 2579 fps | 98.6% |
| Bofors RP7 | <<locked>> | 90% | 46,615 psi | 73% | 2710 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,689 psi | 76% | 2700 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,876 psi | 72% | 2733 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,807 psi | 80% | 2881 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 80% | 53,766 psi | 84% | 2802 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,450 psi | 60% | 2582 fps | 96.1% |
| Hodgdon H414 | <<locked>> | 90% | 43,352 psi | 68% | 2736 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 50,560 psi | 79% | 2818 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 45,469 psi | 71% | 2717 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,748 psi | 48% | 2431 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,524 psi | 65% | 2687 fps | 99.3% |
| Hodgdon Superformance | 53.9 gr | 92% | 46,325 psi | 73% | 2812 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,324 psi | 41% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,468 psi | 68% | 2664 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 45,266 psi | 71% | 2713 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,089 psi | 63% | 2585 fps | 97.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,556 psi | 71% | 2664 fps | 95.7% |
| IMR 4350 | <<locked>> | 94% | 46,630 psi | 73% | 2733 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,542 psi | 71% | 2694 fps | 95.6% |
| IMR 4831 | <<locked>> | 86% | 34,374 psi | 54% | 2530 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 41,756 psi | 65% | 2671 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 80% | 47,108 psi | 74% | 2713 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 53,563 psi | 84% | 2799 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 44,324 psi | 69% | 2687 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,933 psi | 70% | 2641 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 40,059 psi | 63% | 2589 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 39,813 psi | 62% | 2585 fps | 95.6% |
| Lovex S070 | <<locked>> | 90% | 42,859 psi | 67% | 2667 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 44,237 psi | 69% | 2661 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 44,469 psi | 70% | 2664 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,161 psi | 63% | 2628 fps | 98.4% |
| Norma 204 | <<locked>> | 98% | 53,432 psi | 84% | 2887 fps | 95.6% |
| Norma URP | <<locked>> | 86% | 35,766 psi | 56% | 2575 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 39,566 psi | 62% | 2638 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 39,653 psi | 62% | 2667 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 47,036 psi | 74% | 2720 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,615 psi | 73% | 2740 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,691 psi | 79% | 2759 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,731 psi | 42% | 1601 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,736 psi | 83% | 2792 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,510 psi | 65% | 2621 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,989 psi | 67% | 2746 fps | 98.5% |
| ReloadSwiss RS 60 | 44.4 gr | 80% | 34,940 psi | 55% | 2608 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 35,085 psi | 55% | 2585 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,637 psi | 59% | 2651 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 48,196 psi | 76% | 2700 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,090 psi | 66% | 2612 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 35,346 psi | 55% | 2523 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 90% | 46,615 psi | 73% | 2710 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,813 psi | 62% | 2585 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,324 psi | 69% | 2687 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,059 psi | 63% | 2589 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 42,859 psi | 67% | 2667 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,419 psi | 57% | 2572 fps | 97.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,469 psi | 71% | 2694 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,627 psi | 68% | 2674 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,498 psi | 71% | 2612 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,869 psi | 59% | 2477 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,657 psi | 70% | 2635 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 50,966 psi | 80% | 2792 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,165 psi | 71% | 2612 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,063 psi | 71% | 2690 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 36,318 psi | 57% | 2533 fps | 97.9% |
| Somchem S365 | <<locked>> | 80% | 26,382 psi | 41% | 2356 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 51,271 psi | 80% | 2667 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,803 psi | 72% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,539 psi | 65% | 2592 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,018 psi | 66% | 2598 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,374 psi | 54% | 2464 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 84% | 34,925 psi | 55% | 2520 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 47,065 psi | 74% | 2707 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,524 psi | 64% | 2589 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,637 psi | 57% | 2575 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 92% | 33,083 psi | 52% | 2562 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,530 psi | 48% | 2388 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 47,036 psi | 74% | 2756 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 43,598 psi | 68% | 2740 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,922 psi | 48% | 2566 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,062 psi | 67% | 2677 fps | 99.3% |
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 99 powders for .284 Win. loaded with the .284 | 140gr | Nosler CT FailSafe. ReloadSwiss RS 70 delivers the highest muzzle velocity at 3,022 fps; across all powders the maximum-charge window runs from 1,749 fps to 3,022 fps. Accurate 4350 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 55–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, Hodgdon Superformance rank at the top here: for .284 Win. with the .284 | 140gr | Nosler CT FailSafe 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.