Load Specifications
Bullet Manufacturer:RWS
Bullet Weight:123 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:1:14.5
Load data in caliber .284 Win. with .284 | 123gr | RWS Kegelspitz bullet and 102 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 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>> | 86% | 55,477 psi | 87% | 2959 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 57,725 psi | 90% | 3038 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 57,537 psi | 90% | 3028 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 56,101 psi | 88% | 3051 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 57,305 psi | 90% | 3018 fps | 96.1% |
| Accurate 4064 | <<locked>> | 94% | 57,421 psi | 90% | 3077 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,417 psi | 84% | 3094 fps | 98.8% |
| Accurate LT-30 | <<locked>> | 82% | 57,580 psi | 90% | 2946 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 54,723 psi | 86% | 3058 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 94% | 55,738 psi | 87% | 3054 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 88% | 57,290 psi | 90% | 3061 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 54,360 psi | 85% | 2995 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,448 psi | 87% | 3123 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,143 psi | 85% | 3169 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,593 psi | 87% | 3081 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,361 psi | 87% | 2969 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,173 psi | 88% | 3100 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,677 psi | 81% | 3097 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 98% | 56,260 psi | 88% | 3199 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,709 psi | 58% | 2799 fps | 96.6% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 57,116 psi | 90% | 2940 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,607 psi | 86% | 3068 fps | 99% |
| Bofors RP3 | <<locked>> | 94% | 56,260 psi | 88% | 3094 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 56,420 psi | 88% | 3051 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,767 psi | 87% | 2995 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 56,840 psi | 89% | 3097 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,897 psi | 86% | 3140 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 82% | 54,476 psi | 85% | 3009 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,521 psi | 87% | 3035 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 57,261 psi | 90% | 3104 fps | 98.9% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 56,478 psi | 89% | 3146 fps | 97% |
| Hodgdon H4350 | <<locked>> | 98% | 57,551 psi | 90% | 3110 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 88% | 55,230 psi | 87% | 3068 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,688 psi | 75% | 2966 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,433 psi | 85% | 3100 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,056 psi | 55% | 1877 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,434 psi | 88% | 3068 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 55,027 psi | 86% | 3058 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,143 psi | 86% | 3035 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,521 psi | 87% | 3012 fps | 96.7% |
| IMR 4198 | <<locked>> | 82% | 55,042 psi | 86% | 2923 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,056 psi | 86% | 3035 fps | 96.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,415 psi | 79% | 3025 fps | 98.4% |
| IMR 4895 | <<locked>> | 92% | 57,595 psi | 90% | 3133 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 88% | 57,290 psi | 90% | 3061 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 53,940 psi | 85% | 2995 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,331 psi | 85% | 3035 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,534 psi | 85% | 2986 fps | 99.6% |
| Lovex S062 | <<locked>> | 92% | 54,795 psi | 86% | 3031 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 57,508 psi | 90% | 3077 fps | 98.3% |
| Lovex S070ᴾ | <<locked>> | 100% | 54,897 psi | 86% | 3054 fps | 96.8% |
| Norma 201 | <<locked>> | 90% | 56,797 psi | 89% | 3054 fps | 100% |
| Norma 202 | <<locked>> | 90% | 57,421 psi | 90% | 3061 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,332 psi | 87% | 3087 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 52,562 psi | 82% | 3081 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 92% | 56,014 psi | 88% | 3110 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,605 psi | 81% | 3068 fps | 96.9% |
| Ramshot TAC | <<locked>> | 86% | 54,215 psi | 85% | 3018 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 88% | 57,305 psi | 90% | 3100 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,795 psi | 86% | 3009 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,578 psi | 56% | 1923 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 56,811 psi | 89% | 3045 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,070 psi | 85% | 3025 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 56,565 psi | 89% | 3169 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 56,217 psi | 88% | 3205 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,895 psi | 83% | 3110 fps | 98.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,374 psi | 84% | 3140 fps | 98.2% |
| Rottweil R 901 | <<locked>> | 86% | 54,346 psi | 85% | 2989 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 57,363 psi | 90% | 3051 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 55,753 psi | 87% | 3077 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 56,420 psi | 88% | 3051 fps | 96.2% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 57,508 psi | 90% | 3077 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,331 psi | 85% | 3035 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 54,795 psi | 86% | 3031 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 54,897 psi | 86% | 3054 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 56,391 psi | 88% | 3012 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,186 psi | 85% | 3091 fps | 99.5% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 56,260 psi | 88% | 2995 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,130 psi | 88% | 3054 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 56,623 psi | 89% | 3081 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,303 psi | 87% | 2946 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,245 psi | 87% | 2943 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,578 psi | 86% | 2972 fps | 96.5% |
| Somchem S321 | <<locked>> | 84% | 55,027 psi | 86% | 3041 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,592 psi | 86% | 2946 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,738 psi | 87% | 3048 fps | 99.6% |
| Somchem S355 | <<locked>> | 96% | 56,376 psi | 88% | 3081 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,963 psi | 74% | 3025 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 54,940 psi | 86% | 2913 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,390 psi | 87% | 2933 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 57,000 psi | 89% | 3018 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,578 psi | 86% | 2986 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,215 psi | 85% | 3005 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,259 psi | 87% | 3081 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 86% | 54,259 psi | 85% | 3009 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 56,188 psi | 88% | 3028 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,288 psi | 85% | 3084 fps | 98.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,581 psi | 62% | 2877 fps | 96.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,202 psi | 88% | 3064 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 53,969 psi | 85% | 3058 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 56,797 psi | 89% | 3150 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 90% | 56,608 psi | 89% | 3091 fps | 99.9% |
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% | 46,151 psi | 72% | 2815 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,517 psi | 79% | 2930 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,667 psi | 61% | 2720 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,629 psi | 72% | 2881 fps | 99.9% |
| Accurate 2700 | <<locked>> | 90% | 53,824 psi | 84% | 2963 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 36,564 psi | 57% | 2707 fps | 99.5% |
| Accurate 4350 | <<locked>> | 90% | 37,565 psi | 59% | 2785 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 54,389 psi | 85% | 2900 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 42,482 psi | 67% | 2828 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 36,100 psi | 57% | 2664 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,527 psi | 70% | 2844 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 80% | 44,454 psi | 70% | 2844 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,909 psi | 81% | 3061 fps | 99.6% |
| Alliant Power Pro 2000-MR | 46.9 gr | 80% | 38,537 psi | 60% | 2841 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,592 psi | 56% | 2687 fps | 96.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,851 psi | 81% | 2917 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,261 psi | 60% | 2753 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 90% | 37,826 psi | 59% | 2799 fps | 95.1% |
| Alliant Reloder-17 | 47.3 gr | 82% | 32,837 psi | 51% | 2694 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 98% | 34,490 psi | 54% | 2736 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,809 psi | 84% | 2894 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,727 psi | 65% | 2828 fps | 96.6% |
| Bofors RP3 | <<locked>> | 80% | 35,143 psi | 55% | 2687 fps | 96.9% |
| Bofors RP7 | <<locked>> | 96% | 52,939 psi | 83% | 2995 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,296 psi | 73% | 2835 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,250 psi | 68% | 2861 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,601 psi | 75% | 3009 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 80% | 51,024 psi | 80% | 2956 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,808 psi | 81% | 2979 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 41,191 psi | 65% | 2808 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 96% | 49,545 psi | 78% | 3025 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 96% | 53,998 psi | 85% | 3051 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 42,815 psi | 67% | 2841 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,503 psi | 51% | 2628 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,827 psi | 61% | 2805 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,063 psi | 41% | 1677 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,249 psi | 65% | 2792 fps | 98% |
| IMR 3031 | <<locked>> | 80% | 42,148 psi | 66% | 2844 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,884 psi | 59% | 2703 fps | 96.1% |
| IMR 4166 Enduron | <<locked>> | 86% | 49,037 psi | 77% | 2897 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 52,156 psi | 82% | 2881 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 92% | 48,617 psi | 76% | 2920 fps | 95% |
| IMR 4831 | <<locked>> | 92% | 38,856 psi | 61% | 2799 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 39,160 psi | 61% | 2785 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 80% | 44,527 psi | 70% | 2844 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 80% | 50,343 psi | 79% | 2936 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,263 psi | 65% | 2805 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 42,714 psi | 67% | 2769 fps | 97.9% |
| Lovex S062 | <<locked>> | 80% | 37,753 psi | 59% | 2710 fps | 97.9% |
| Lovex S065 | <<locked>> | 92% | 44,976 psi | 70% | 2858 fps | 95.7% |
| Lovex S070 | <<locked>> | 96% | 48,370 psi | 76% | 2940 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 41,510 psi | 65% | 2782 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 41,858 psi | 66% | 2795 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 37,623 psi | 59% | 2740 fps | 96.6% |
| Norma URP | <<locked>> | 90% | 37,985 psi | 60% | 2789 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 37,188 psi | 58% | 2749 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 96% | 45,165 psi | 71% | 2946 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 44,353 psi | 70% | 2838 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,816 psi | 69% | 2864 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,240 psi | 76% | 2897 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,382 psi | 41% | 1719 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,038 psi | 78% | 2936 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 47,659 psi | 75% | 2910 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,798 psi | 62% | 2854 fps | 96.6% |
| ReloadSwiss RS 60 | 46.2 gr | 80% | 32,808 psi | 51% | 2707 fps | 97.7% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 40,045 psi | 63% | 2864 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 43,468 psi | 68% | 2940 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 45,513 psi | 71% | 2838 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,537 psi | 62% | 2730 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 32,953 psi | 52% | 2625 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 96% | 52,939 psi | 83% | 2995 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 92% | 44,976 psi | 70% | 2858 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,263 psi | 65% | 2805 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 37,753 psi | 59% | 2710 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 96% | 48,370 psi | 76% | 2940 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,924 psi | 83% | 2956 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,924 psi | 53% | 2674 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,634 psi | 82% | 2943 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,641 psi | 67% | 2808 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,915 psi | 64% | 2792 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,047 psi | 67% | 2746 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,665 psi | 56% | 2598 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 51,053 psi | 80% | 2913 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 48,269 psi | 76% | 2930 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 42,525 psi | 67% | 2743 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,482 psi | 67% | 2812 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 33,852 psi | 53% | 2635 fps | 95.8% |
| Somchem S365 | <<locked>> | 86% | 29,675 psi | 47% | 2608 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 48,646 psi | 76% | 2818 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,294 psi | 68% | 2743 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,812 psi | 61% | 2723 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,537 psi | 62% | 2726 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 32,184 psi | 50% | 2569 fps | 96.8% |
| Vihtavuori N160 | <<locked>> | 90% | 39,726 psi | 62% | 2792 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 44,599 psi | 70% | 2838 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 38,247 psi | 60% | 2713 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 39,131 psi | 61% | 2792 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 98% | 37,202 psi | 58% | 2825 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 32,808 psi | 51% | 2595 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 44,092 psi | 69% | 2887 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 49,545 psi | 78% | 3025 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,379 psi | 63% | 2795 fps | 97.9% |
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 102 powders for .284 Win. loaded with the .284 | 123gr | RWS Kegelspitz. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,205 fps; across all powders the maximum-charge window runs from 1,877 fps to 3,205 fps. Accurate 4350 gives the best case fill at 100 %, and 102 of the 102 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 123.0 gr projectile in 0.284" calls for a 1:14.5 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .284 Win. with the .284 | 123gr | RWS Kegelspitz 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.