Load Specifications
Load data in caliber .284 Win. with .284 | 140gr | Alaska Bullet Works Kodiak SP SPBC bullet and 100 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% | 54,969 psi | 86% | 2759 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 57,145 psi | 90% | 2835 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 57,348 psi | 90% | 2828 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,622 psi | 87% | 2851 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,550 psi | 89% | 2831 fps | 97.2% |
| Accurate 4064 | <<locked>> | 92% | 57,159 psi | 90% | 2877 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 57,290 psi | 90% | 2966 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 54,157 psi | 85% | 2861 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 55,332 psi | 87% | 2861 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,550 psi | 89% | 2861 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 53,911 psi | 84% | 2785 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,479 psi | 90% | 3035 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,245 psi | 87% | 2884 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,709 psi | 87% | 2904 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,578 psi | 86% | 2966 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,144 psi | 88% | 3009 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,204 psi | 61% | 2700 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,830 psi | 69% | 2861 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,638 psi | 90% | 2930 fps | 99.8% |
| Bofors RP3 | <<locked>> | 92% | 55,811 psi | 87% | 2897 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,072 psi | 88% | 2867 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,969 psi | 86% | 2795 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,217 psi | 88% | 2894 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,288 psi | 85% | 2936 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 57,435 psi | 90% | 2854 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,724 psi | 89% | 2910 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 98% | 56,362 psi | 88% | 2959 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 96% | 56,898 psi | 89% | 2920 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 86% | 54,679 psi | 86% | 2867 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,010 psi | 80% | 2841 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 54,302 psi | 85% | 2904 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,508 psi | 90% | 3005 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,607 psi | 56% | 1752 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,898 psi | 88% | 2871 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,723 psi | 86% | 2854 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,607 psi | 86% | 2841 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,607 psi | 86% | 2818 fps | 97.6% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,072 psi | 88% | 2890 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,592 psi | 86% | 2848 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,099 psi | 85% | 2904 fps | 99.6% |
| IMR 4895 | <<locked>> | 90% | 57,145 psi | 90% | 2933 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,550 psi | 89% | 2861 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 57,145 psi | 90% | 2848 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,667 psi | 90% | 2887 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 57,101 psi | 89% | 2838 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 54,404 psi | 85% | 2838 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 57,043 psi | 89% | 2887 fps | 99% |
| Lovex S070 | <<locked>> | 98% | 54,679 psi | 86% | 2874 fps | 97.9% |
| Norma 201 | <<locked>> | 88% | 56,478 psi | 89% | 2858 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,884 psi | 89% | 2854 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,882 psi | 86% | 2887 fps | 99.9% |
| Norma 204ᴾ | <<locked>> | 100% | 56,898 psi | 89% | 2940 fps | 96.3% |
| Norma URPᴾ | <<locked>> | 100% | 55,912 psi | 88% | 2949 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 55,506 psi | 87% | 2913 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,839 psi | 86% | 2943 fps | 98.5% |
| Ramshot TAC | <<locked>> | 86% | 57,116 psi | 90% | 2884 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,579 psi | 89% | 2900 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 53,940 psi | 85% | 2812 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,969 psi | 56% | 1791 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,217 psi | 88% | 2841 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 57,087 psi | 89% | 2890 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,362 psi | 88% | 2972 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,898 psi | 88% | 3005 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,782 psi | 89% | 2986 fps | 99.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,434 psi | 88% | 3015 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 86% | 57,479 psi | 90% | 2838 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,782 psi | 89% | 2851 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,666 psi | 87% | 2890 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 56,072 psi | 88% | 2867 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 98% | 57,043 psi | 89% | 2887 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,667 psi | 90% | 2887 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,404 psi | 85% | 2838 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,679 psi | 86% | 2874 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,667 psi | 90% | 2953 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 54,882 psi | 86% | 2733 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,390 psi | 87% | 2858 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,159 psi | 88% | 2884 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,650 psi | 86% | 2749 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,839 psi | 86% | 2746 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,012 psi | 85% | 2792 fps | 97.5% |
| Somchem S321 | <<locked>> | 82% | 54,360 psi | 85% | 2844 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 57,363 psi | 90% | 2792 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,158 psi | 86% | 2851 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 56,072 psi | 88% | 2887 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,372 psi | 79% | 2900 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 54,360 psi | 85% | 2710 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,882 psi | 86% | 2733 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,768 psi | 89% | 2818 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 57,435 psi | 90% | 2831 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,377 psi | 90% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,245 psi | 87% | 2897 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 86% | 57,203 psi | 90% | 2861 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,767 psi | 87% | 2831 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,186 psi | 85% | 2900 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,902 psi | 67% | 2776 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,521 psi | 87% | 2874 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 57,101 psi | 89% | 2907 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,710 psi | 89% | 2966 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,983 psi | 55% | 2694 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,043 psi | 88% | 2890 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% | 48,646 psi | 76% | 2667 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,505 psi | 84% | 2785 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,365 psi | 65% | 2592 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,573 psi | 76% | 2746 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,499 psi | 73% | 2667 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 39,088 psi | 61% | 2585 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 35,201 psi | 55% | 2566 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 44,976 psi | 70% | 2703 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 80% | 38,130 psi | 60% | 2549 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,065 psi | 74% | 2710 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,369 psi | 74% | 2694 fps | 100% |
| Alliant Power Pro 2000-MR | 44.9 gr | 80% | 40,770 psi | 64% | 2730 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,913 psi | 59% | 2575 fps | 98.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,712 psi | 64% | 2638 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,375 psi | 55% | 2579 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,605 psi | 51% | 2536 fps | 96.6% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,530 psi | 48% | 2477 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 38,014 psi | 60% | 2726 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,193 psi | 69% | 2703 fps | 98.2% |
| Bofors RP3 | <<locked>> | 80% | 37,434 psi | 59% | 2575 fps | 98.6% |
| Bofors RP7 | <<locked>> | 90% | 46,557 psi | 73% | 2707 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,588 psi | 76% | 2697 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,847 psi | 72% | 2730 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,749 psi | 80% | 2881 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 80% | 53,650 psi | 84% | 2802 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,363 psi | 60% | 2579 fps | 96.1% |
| Hodgdon H414 | <<locked>> | 90% | 43,294 psi | 68% | 2733 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 92% | 50,183 psi | 79% | 2812 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 45,426 psi | 71% | 2717 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,487 psi | 48% | 2421 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,220 psi | 65% | 2680 fps | 99.3% |
| Hodgdon Superformance | 53.8 gr | 92% | 46,354 psi | 73% | 2812 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,411 psi | 41% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,395 psi | 68% | 2661 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 44,904 psi | 70% | 2703 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,030 psi | 63% | 2582 fps | 97.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,223 psi | 71% | 2657 fps | 95.6% |
| IMR 4350 | <<locked>> | 94% | 46,615 psi | 73% | 2733 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,237 psi | 71% | 2684 fps | 95.5% |
| IMR 4831 | <<locked>> | 86% | 34,069 psi | 53% | 2523 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 41,713 psi | 65% | 2667 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 80% | 47,065 psi | 74% | 2710 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 80% | 53,156 psi | 83% | 2792 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,976 psi | 69% | 2680 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,831 psi | 70% | 2638 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 39,987 psi | 63% | 2589 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 39,523 psi | 62% | 2579 fps | 95.5% |
| Lovex S070 | <<locked>> | 90% | 42,540 psi | 67% | 2661 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 43,874 psi | 69% | 2651 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 44,353 psi | 70% | 2664 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,089 psi | 63% | 2625 fps | 98.3% |
| Norma 204 | <<locked>> | 98% | 53,127 psi | 83% | 2881 fps | 95.5% |
| Norma URP | <<locked>> | 86% | 35,462 psi | 56% | 2566 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 39,494 psi | 62% | 2635 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 39,639 psi | 62% | 2664 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 46,978 psi | 74% | 2717 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,557 psi | 73% | 2736 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,618 psi | 79% | 2756 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,818 psi | 42% | 1601 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,634 psi | 82% | 2792 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,466 psi | 65% | 2618 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,670 psi | 67% | 2736 fps | 98.4% |
| ReloadSwiss RS 60 | 44.2 gr | 80% | 34,708 psi | 54% | 2605 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 35,012 psi | 55% | 2582 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,594 psi | 59% | 2648 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 48,109 psi | 75% | 2697 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,003 psi | 66% | 2608 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 35,259 psi | 55% | 2520 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 90% | 46,557 psi | 73% | 2707 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,523 psi | 62% | 2579 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,976 psi | 69% | 2680 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,987 psi | 63% | 2589 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 42,540 psi | 67% | 2661 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,114 psi | 57% | 2566 fps | 97.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,716 psi | 72% | 2602 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,121 psi | 71% | 2687 fps | 97.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,294 psi | 68% | 2667 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,382 psi | 71% | 2608 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,782 psi | 59% | 2474 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,324 psi | 69% | 2628 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 50,923 psi | 80% | 2792 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,846 psi | 70% | 2605 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,020 psi | 71% | 2687 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 35,998 psi | 56% | 2523 fps | 97.8% |
| Somchem S365 | <<locked>> | 80% | 26,179 psi | 41% | 2349 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 51,213 psi | 80% | 2667 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,716 psi | 72% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,466 psi | 65% | 2592 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,916 psi | 66% | 2595 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,330 psi | 54% | 2464 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 84% | 34,867 psi | 55% | 2520 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 47,021 psi | 74% | 2703 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,451 psi | 63% | 2585 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,564 psi | 57% | 2572 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 92% | 32,851 psi | 51% | 2556 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,516 psi | 48% | 2385 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 46,659 psi | 73% | 2749 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 43,294 psi | 68% | 2733 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,719 psi | 48% | 2559 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,018 psi | 67% | 2677 fps | 99.2% |
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 100 powders for .284 Win. loaded with the .284 | 140gr | Alaska Bullet Works Kodiak SP SPBC. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,035 fps; across all powders the maximum-charge window runs from 1,752 fps to 3,035 fps. Accurate 4350 gives the best case fill at 100 %, and 100 of the 100 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 | Alaska Bullet Works Kodiak SP SPBC 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.