Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:100 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:1:15.0
Load data in caliber .284 Win. with .284 | 100gr | Sierra VarmintKing bullet and 88 powders. The key underlying parameters are shown in the table above.
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>> | 90% | 55,695 psi | 87% | 3268 fps | 100% |
| Accurate 2200 | <<locked>> | 82% | 55,695 psi | 87% | 3366 fps | 97.7% |
| Accurate 2230 | <<locked>> | 82% | 56,956 psi | 89% | 3376 fps | 98.3% |
| Accurate 2460 | <<locked>> | 86% | 54,375 psi | 85% | 3284 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 56,710 psi | 89% | 3327 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 56,101 psi | 88% | 3350 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 56,304 psi | 88% | 3366 fps | 100% |
| Accurate LT-30 | <<locked>> | 84% | 55,579 psi | 87% | 3215 fps | 100% |
| Accurate LT-32 | <<locked>> | 84% | 55,941 psi | 88% | 3238 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 92% | 55,042 psi | 86% | 3350 fps | 98.4% |
| ADI AR 2207 | <<locked>> | 82% | 57,029 psi | 89% | 3245 fps | 100% |
| ADI AR 2208 | <<locked>> | 98% | 55,811 psi | 87% | 3337 fps | 98% |
| ADI AR 2219 | <<locked>> | 84% | 56,362 psi | 88% | 3346 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 54,114 psi | 85% | 3301 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 92% | 57,508 psi | 90% | 3356 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 55,579 psi | 87% | 3428 fps | 98.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 54,723 psi | 86% | 3458 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 54,984 psi | 86% | 3356 fps | 99.1% |
| Alliant Reloder-10x | <<locked>> | 86% | 55,390 psi | 87% | 3284 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 55,970 psi | 88% | 3383 fps | 98.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 52,388 psi | 82% | 3409 fps | 98.6% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 55,056 psi | 86% | 3202 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 54,824 psi | 86% | 3353 fps | 97.5% |
| Bofors RP3 | <<locked>> | 98% | 55,825 psi | 87% | 3379 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 90% | 56,550 psi | 89% | 3297 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 92% | 57,101 psi | 89% | 3396 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 88% | 54,810 psi | 86% | 3428 fps | 98% |
| Hodgdon H322 | <<locked>> | 86% | 54,737 psi | 86% | 3320 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 56,202 psi | 88% | 3343 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 57,595 psi | 90% | 3386 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 82% | 57,406 psi | 90% | 3274 fps | 100% |
| Hodgdon H4895 | <<locked>> | 92% | 55,492 psi | 87% | 3366 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,259 psi | 85% | 3389 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,258 psi | 54% | 2073 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 56,913 psi | 89% | 3366 fps | 99% |
| IMR 3031 | <<locked>> | 92% | 54,302 psi | 85% | 3363 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 55,274 psi | 87% | 3320 fps | 98.1% |
| IMR 4198 | <<locked>> | 86% | 55,869 psi | 88% | 3251 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 57,377 psi | 90% | 3422 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 90% | 54,114 psi | 85% | 3301 fps | 99.1% |
| Lovex D073.4 | <<locked>> | 82% | 57,711 psi | 90% | 3356 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 86% | 54,375 psi | 85% | 3291 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 92% | 53,896 psi | 84% | 3323 fps | 99.9% |
| Lovex S060 | <<locked>> | 92% | 55,317 psi | 87% | 3278 fps | 98.5% |
| Lovex S062 | <<locked>> | 96% | 54,563 psi | 86% | 3320 fps | 99.3% |
| Norma 200 | <<locked>> | 82% | 55,390 psi | 87% | 3255 fps | 100% |
| Norma 201 | <<locked>> | 94% | 56,971 psi | 89% | 3350 fps | 99.5% |
| Norma 202 | <<locked>> | 94% | 57,421 psi | 90% | 3363 fps | 100% |
| Norma 203B | <<locked>> | 96% | 55,114 psi | 86% | 3369 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 96% | 56,028 psi | 88% | 3396 fps | 98.5% |
| Ramshot TAC | <<locked>> | 90% | 55,071 psi | 86% | 3304 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 90% | 53,969 psi | 85% | 3330 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 88% | 55,912 psi | 88% | 3304 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,592 psi | 54% | 2123 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 57,595 psi | 90% | 3356 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 55,854 psi | 88% | 3455 fps | 98.1% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 55,941 psi | 88% | 3491 fps | 100% |
| Rottweil R 901 | <<locked>> | 90% | 54,607 psi | 86% | 3291 fps | 100% |
| Rottweil R 902 | <<locked>> | 96% | 57,435 psi | 90% | 3343 fps | 99.5% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 55,347 psi | 87% | 3363 fps | 99% |
| Shooters World AR Plus | <<locked>> | 82% | 57,711 psi | 90% | 3356 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 92% | 53,896 psi | 84% | 3323 fps | 99.9% |
| Shooters World Precision | <<locked>> | 96% | 54,563 psi | 86% | 3320 fps | 99.3% |
| Shooters World Tactical Rifle | <<locked>> | 86% | 57,624 psi | 90% | 3317 fps | 99.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 55,651 psi | 87% | 2956 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 56,797 psi | 89% | 3353 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 57,450 psi | 90% | 3428 fps | 98.7% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 56,289 psi | 88% | 3307 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 56,608 psi | 89% | 3337 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 56,884 psi | 89% | 3369 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 55,695 psi | 87% | 3245 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 55,288 psi | 87% | 3232 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 55,767 psi | 87% | 3343 fps | 99.5% |
| Somchem S335 | <<locked>> | 92% | 54,723 psi | 86% | 3238 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 56,086 psi | 88% | 3333 fps | 98.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 55,999 psi | 88% | 3363 fps | 98.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,393 psi | 63% | 3143 fps | 97.1% |
| Vihtavuori N120 | <<locked>> | 82% | 56,826 psi | 89% | 3186 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 55,477 psi | 87% | 3222 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 55,506 psi | 87% | 3235 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 56,391 psi | 88% | 3320 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 54,433 psi | 85% | 3281 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 54,215 psi | 85% | 3287 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 90% | 54,853 psi | 86% | 3304 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 96% | 56,391 psi | 88% | 3323 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,516 psi | 78% | 3209 fps | 98.1% |
| Winchester 748 | <<locked>> | 90% | 53,969 psi | 85% | 3353 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 94% | 56,884 psi | 89% | 3383 fps | 99.1% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 40,596 psi | 64% | 2995 fps | 99.9% |
| Accurate 2200 | <<locked>> | 80% | 52,257 psi | 82% | 3301 fps | 97.1% |
| Accurate 2230 | <<locked>> | 80% | 53,040 psi | 83% | 3307 fps | 97.6% |
| Accurate 2460 | <<locked>> | 80% | 44,193 psi | 69% | 3097 fps | 99.2% |
| Accurate 2495 | <<locked>> | 80% | 33,185 psi | 52% | 2867 fps | 99.2% |
| Accurate 2520 | <<locked>> | 80% | 39,436 psi | 62% | 3028 fps | 98% |
| Accurate 4064 | <<locked>> | 80% | 31,386 psi | 49% | 2835 fps | 96.6% |
| Accurate LT-30 | <<locked>> | 80% | 49,052 psi | 77% | 3107 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 49,414 psi | 77% | 3127 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 42,467 psi | 67% | 3094 fps | 95.7% |
| ADI AR 2207 | <<locked>> | 80% | 53,490 psi | 84% | 3192 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 43,511 psi | 68% | 3094 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 49,226 psi | 77% | 3225 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,392 psi | 62% | 2999 fps | 96.2% |
| Alliant AR-Comp | <<locked>> | 80% | 38,087 psi | 60% | 3022 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,397 psi | 71% | 3225 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 47,384 psi | 74% | 3304 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 37,521 psi | 59% | 2995 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 45,963 psi | 72% | 3123 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 43,308 psi | 68% | 3133 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 92% | 40,001 psi | 63% | 3130 fps | 95.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 48,196 psi | 76% | 3087 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 44,759 psi | 70% | 3156 fps | 95.1% |
| Bofors RP3 | <<locked>> | 86% | 36,970 psi | 58% | 2992 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,481 psi | 65% | 3005 fps | 97.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,463 psi | 59% | 2999 fps | 96.3% |
| Hodgdon CFE223 | <<locked>> | 82% | 44,251 psi | 69% | 3215 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 80% | 44,773 psi | 70% | 3136 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 80% | 45,788 psi | 72% | 3159 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 94% | 50,082 psi | 78% | 3251 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 53,925 psi | 85% | 3215 fps | 100% |
| Hodgdon H4895 | <<locked>> | 82% | 40,161 psi | 63% | 3048 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 38,638 psi | 61% | 3061 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,382 psi | 40% | 1857 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 38,812 psi | 61% | 2999 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 36,405 psi | 57% | 3005 fps | 99.2% |
| IMR 4064 | <<locked>> | 88% | 42,931 psi | 67% | 3077 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 46,586 psi | 73% | 3094 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 41,597 psi | 65% | 3110 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 39,392 psi | 62% | 2999 fps | 96.2% |
| Lovex D073.4 | <<locked>> | 80% | 53,795 psi | 84% | 3294 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 44,208 psi | 69% | 3100 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 80% | 35,752 psi | 56% | 2949 fps | 96.9% |
| Lovex S060 | <<locked>> | 82% | 40,727 psi | 64% | 2982 fps | 95.2% |
| Lovex S062 | <<locked>> | 84% | 37,594 psi | 59% | 2963 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 52,025 psi | 82% | 3202 fps | 100% |
| Norma 201 | <<locked>> | 80% | 36,637 psi | 57% | 2927 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 36,506 psi | 57% | 2946 fps | 97.8% |
| Norma 203B | <<locked>> | 88% | 42,583 psi | 67% | 3120 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 88% | 42,351 psi | 66% | 3127 fps | 95.4% |
| Ramshot TAC | <<locked>> | 88% | 51,561 psi | 81% | 3241 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 41,191 psi | 65% | 3068 fps | 95.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 42,786 psi | 67% | 3048 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,556 psi | 40% | 1900 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,338 psi | 69% | 3110 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 45,208 psi | 71% | 3248 fps | 95.8% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 34,824 psi | 55% | 3002 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 40,234 psi | 63% | 3002 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 82% | 37,217 psi | 58% | 2933 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 90% | 39,581 psi | 62% | 3048 fps | 95.7% |
| Shooters World AR Plus | <<locked>> | 80% | 53,795 psi | 84% | 3294 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,752 psi | 56% | 2949 fps | 96.9% |
| Shooters World Precision | <<locked>> | 84% | 37,594 psi | 59% | 2963 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 46,818 psi | 73% | 3123 fps | 97.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 52,895 psi | 83% | 2917 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 49,647 psi | 78% | 3228 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 41,249 psi | 65% | 3107 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 46,601 psi | 73% | 3140 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 49,327 psi | 77% | 3202 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 41,133 psi | 64% | 3054 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,218 psi | 60% | 2910 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,299 psi | 49% | 2740 fps | 97.3% |
| Somchem S321 | <<locked>> | 80% | 42,308 psi | 66% | 3084 fps | 97.4% |
| Somchem S335 | <<locked>> | 80% | 37,826 psi | 59% | 2910 fps | 98.8% |
| Somchem S341 | <<locked>> | 84% | 42,685 psi | 67% | 3074 fps | 95.6% |
| Somchem S355 | <<locked>> | 90% | 40,582 psi | 64% | 3054 fps | 95.7% |
| Somchem S365 | <<locked>> | 96% | 35,404 psi | 55% | 3009 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 53,359 psi | 84% | 3136 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 43,366 psi | 68% | 3015 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,276 psi | 60% | 2920 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 33,518 psi | 53% | 2874 fps | 99.2% |
| Vihtavuori N140 | <<locked>> | 80% | 34,635 psi | 54% | 2874 fps | 97.7% |
| Vihtavuori N150 | <<locked>> | 86% | 33,968 psi | 53% | 2864 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 39,305 psi | 62% | 2992 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 80% | 33,431 psi | 52% | 2851 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 40,277 psi | 63% | 3012 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 38,174 psi | 60% | 3028 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 40,306 psi | 63% | 3054 fps | 95.8% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 113 powders for .284 Win. loaded with the .284 | 100gr | Sierra VarmintKing. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,491 fps; across all powders the maximum-charge window runs from 2,073 fps to 3,491 fps. Accurate 4350 gives the best case fill at 100 %, and 113 of the 113 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.284" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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. As outliers, Accurate 2700, Alliant Reloder-16, Bofors RP7 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.