Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:120 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:1:16.0
Load data in caliber .284 Win. with .284 | 120gr | Sierra Pro-Hunter bullet and 100 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% | 55,956 psi | 88% | 3009 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,172 psi | 85% | 3028 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,128 psi | 85% | 3025 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 56,318 psi | 88% | 3097 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 57,595 psi | 90% | 3064 fps | 96.1% |
| Accurate 4064 | <<locked>> | 94% | 57,566 psi | 90% | 3120 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,577 psi | 84% | 3133 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 88% | 54,940 psi | 86% | 3100 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 94% | 55,898 psi | 88% | 3097 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 88% | 57,551 psi | 90% | 3110 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 54,433 psi | 85% | 3035 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,608 psi | 87% | 3166 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 54,462 psi | 85% | 3219 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,709 psi | 87% | 3123 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,288 psi | 87% | 3012 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,275 psi | 88% | 3143 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,895 psi | 81% | 3140 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 98% | 56,681 psi | 89% | 3245 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,854 psi | 58% | 2835 fps | 96.5% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 57,319 psi | 90% | 2986 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,926 psi | 86% | 3114 fps | 99% |
| Bofors RP3 | <<locked>> | 94% | 56,318 psi | 88% | 3136 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 56,710 psi | 89% | 3094 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,767 psi | 87% | 3038 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 56,927 psi | 89% | 3136 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 55,056 psi | 86% | 3182 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 82% | 54,636 psi | 86% | 3054 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,811 psi | 87% | 3081 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 57,580 psi | 90% | 3150 fps | 98.8% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 56,898 psi | 89% | 3192 fps | 97% |
| Hodgdon H4895 | <<locked>> | 88% | 55,492 psi | 87% | 3114 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,950 psi | 75% | 3009 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,781 psi | 86% | 3146 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,273 psi | 55% | 1913 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,956 psi | 89% | 3117 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 55,071 psi | 86% | 3100 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,332 psi | 87% | 3081 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,637 psi | 87% | 3054 fps | 96.6% |
| IMR 4198 | <<locked>> | 82% | 55,477 psi | 87% | 2972 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 55,071 psi | 86% | 3071 fps | 96.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,908 psi | 80% | 3071 fps | 98.4% |
| IMR 4895 | <<locked>> | 92% | 57,711 psi | 90% | 3176 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 88% | 57,551 psi | 90% | 3110 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,201 psi | 85% | 3038 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 54,505 psi | 85% | 3077 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,839 psi | 86% | 3031 fps | 99.6% |
| Lovex S062 | <<locked>> | 92% | 54,984 psi | 86% | 3077 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 57,725 psi | 90% | 3123 fps | 98.2% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,129 psi | 86% | 3100 fps | 96.8% |
| Norma 201 | <<locked>> | 90% | 57,072 psi | 89% | 3100 fps | 100% |
| Norma 202 | <<locked>> | 90% | 57,667 psi | 90% | 3104 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,434 psi | 87% | 3130 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 52,736 psi | 83% | 3123 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 92% | 56,231 psi | 88% | 3156 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 51,938 psi | 81% | 3114 fps | 96.9% |
| Ramshot TAC | <<locked>> | 86% | 54,578 psi | 86% | 3064 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 88% | 57,638 psi | 90% | 3146 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,955 psi | 86% | 3051 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,505 psi | 56% | 1955 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 57,145 psi | 90% | 3094 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 54,317 psi | 85% | 3068 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 57,000 psi | 89% | 3219 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 56,347 psi | 88% | 3251 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 53,258 psi | 83% | 3156 fps | 98.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,592 psi | 84% | 3182 fps | 98.2% |
| Rottweil R 901 | <<locked>> | 86% | 54,824 psi | 86% | 3038 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 57,595 psi | 90% | 3097 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 56,159 psi | 88% | 3127 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 56,710 psi | 89% | 3094 fps | 96.2% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 57,725 psi | 90% | 3123 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,505 psi | 85% | 3077 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 54,984 psi | 86% | 3077 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,129 psi | 86% | 3100 fps | 96.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 56,681 psi | 89% | 3058 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 54,447 psi | 85% | 3136 fps | 99.5% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 56,188 psi | 88% | 3035 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 56,449 psi | 88% | 3097 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 57,043 psi | 89% | 3127 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,361 psi | 87% | 2989 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,448 psi | 87% | 2986 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 54,766 psi | 86% | 3015 fps | 96.4% |
| Somchem S321 | <<locked>> | 84% | 55,201 psi | 87% | 3087 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 54,592 psi | 86% | 2986 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 56,072 psi | 88% | 3094 fps | 99.6% |
| Somchem S355 | <<locked>> | 96% | 56,449 psi | 88% | 3123 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,181 psi | 74% | 3068 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 84% | 55,172 psi | 86% | 2959 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,477 psi | 87% | 2976 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 56,971 psi | 89% | 3061 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,781 psi | 86% | 3031 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,592 psi | 86% | 3051 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,419 psi | 87% | 3123 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 86% | 54,563 psi | 86% | 3054 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 56,550 psi | 89% | 3077 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,752 psi | 86% | 3130 fps | 98.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,784 psi | 62% | 2920 fps | 96.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,405 psi | 88% | 3107 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 54,128 psi | 85% | 3100 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 57,246 psi | 90% | 3196 fps | 97.1% |
| Winchester StaBALL Match | <<locked>> | 90% | 56,971 psi | 89% | 3136 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% | 46,180 psi | 72% | 2854 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 50,560 psi | 79% | 2969 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,943 psi | 61% | 2762 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,687 psi | 72% | 2920 fps | 99.9% |
| Accurate 2700 | <<locked>> | 90% | 53,867 psi | 84% | 3005 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 36,782 psi | 58% | 2749 fps | 99.5% |
| Accurate 4350 | <<locked>> | 90% | 37,753 psi | 59% | 2825 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 42,627 psi | 67% | 2871 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 36,303 psi | 57% | 2707 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,701 psi | 70% | 2887 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 80% | 44,469 psi | 70% | 2884 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,127 psi | 82% | 3110 fps | 99.6% |
| Alliant Power Pro 2000-MR | 47.9 gr | 80% | 38,580 psi | 60% | 2877 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,795 psi | 56% | 2730 fps | 96.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,199 psi | 82% | 2966 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,421 psi | 60% | 2795 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 90% | 38,000 psi | 60% | 2838 fps | 95% |
| Alliant Reloder-17 | 49.6 gr | 84% | 35,346 psi | 55% | 2799 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 98% | 34,650 psi | 54% | 2776 fps | 95.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 53,795 psi | 84% | 2933 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,742 psi | 65% | 2864 fps | 96.4% |
| Bofors RP3 | <<locked>> | 80% | 35,273 psi | 55% | 2726 fps | 96.8% |
| Bofors RP7 | <<locked>> | 96% | 53,243 psi | 83% | 3038 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,470 psi | 73% | 2881 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,294 psi | 68% | 2900 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,863 psi | 75% | 3054 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 80% | 50,937 psi | 80% | 2999 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,156 psi | 82% | 3025 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 41,423 psi | 65% | 2848 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 96% | 49,734 psi | 78% | 3068 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 43,004 psi | 67% | 2884 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,735 psi | 51% | 2667 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,899 psi | 61% | 2841 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,223 psi | 41% | 1713 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,176 psi | 65% | 2828 fps | 97.9% |
| IMR 3031 | <<locked>> | 80% | 42,438 psi | 67% | 2890 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,087 psi | 60% | 2743 fps | 96% |
| IMR 4166 Enduron | <<locked>> | 86% | 48,994 psi | 77% | 2936 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 52,025 psi | 82% | 2923 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 51,808 psi | 81% | 3018 fps | 95.7% |
| IMR 4831 | <<locked>> | 92% | 39,001 psi | 61% | 2835 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 39,334 psi | 62% | 2825 fps | 97% |
| IMR 8208 XBR | <<locked>> | 80% | 44,701 psi | 70% | 2887 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 80% | 50,633 psi | 79% | 2982 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,626 psi | 65% | 2851 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 42,946 psi | 67% | 2812 fps | 97.9% |
| Lovex S062 | <<locked>> | 80% | 37,956 psi | 59% | 2753 fps | 97.9% |
| Lovex S065 | <<locked>> | 92% | 45,136 psi | 71% | 2897 fps | 95.7% |
| Lovex S070 | <<locked>> | 96% | 48,631 psi | 76% | 2986 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 41,756 psi | 65% | 2825 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 42,090 psi | 66% | 2841 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 37,797 psi | 59% | 2779 fps | 96.5% |
| Norma URP | <<locked>> | 90% | 38,145 psi | 60% | 2831 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 37,188 psi | 58% | 2785 fps | 96% |
| Ramshot Hunter | <<locked>> | 96% | 45,585 psi | 71% | 2992 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 44,614 psi | 70% | 2877 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,092 psi | 69% | 2907 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,269 psi | 76% | 2936 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,513 psi | 42% | 1752 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,183 psi | 79% | 2982 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 47,790 psi | 75% | 2949 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,118 psi | 63% | 2900 fps | 96.5% |
| ReloadSwiss RS 60 | 47.2 gr | 80% | 32,837 psi | 51% | 2743 fps | 97.5% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 40,292 psi | 63% | 2904 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 43,598 psi | 68% | 2982 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 45,556 psi | 71% | 2877 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,813 psi | 62% | 2772 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 80% | 33,098 psi | 52% | 2664 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 96% | 53,243 psi | 83% | 3038 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 92% | 45,136 psi | 71% | 2897 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,626 psi | 65% | 2851 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 37,956 psi | 59% | 2753 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 96% | 48,631 psi | 76% | 2986 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,910 psi | 83% | 2995 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,229 psi | 54% | 2717 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,997 psi | 83% | 2989 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,917 psi | 67% | 2851 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,263 psi | 65% | 2835 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,323 psi | 68% | 2789 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,911 psi | 56% | 2641 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 51,372 psi | 81% | 2959 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 48,283 psi | 76% | 2969 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 42,743 psi | 67% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,496 psi | 67% | 2848 fps | 97.6% |
| Somchem S355 | <<locked>> | 80% | 34,055 psi | 53% | 2674 fps | 95.7% |
| Somchem S365 | <<locked>> | 86% | 29,907 psi | 47% | 2648 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 48,950 psi | 77% | 2864 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,584 psi | 68% | 2789 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,117 psi | 61% | 2766 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,697 psi | 62% | 2766 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 32,372 psi | 51% | 2608 fps | 96.7% |
| Vihtavuori N160 | <<locked>> | 90% | 39,885 psi | 63% | 2831 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 44,744 psi | 70% | 2881 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 38,348 psi | 60% | 2753 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 39,218 psi | 61% | 2828 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 37,246 psi | 58% | 2858 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 32,909 psi | 52% | 2631 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 44,193 psi | 69% | 2927 fps | 99.5% |
| Winchester 760 | <<locked>> | 96% | 50,038 psi | 78% | 3074 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,437 psi | 63% | 2835 fps | 97.8% |
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 | 120gr | Sierra Pro-Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,251 fps; across all powders the maximum-charge window runs from 1,913 fps to 3,251 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 120.0 gr projectile in 0.284" calls for a 1:16.0 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 | 120gr | Sierra Pro-Hunter 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.