Load Specifications
Load data in caliber .280 Rem. with .284 | 100gr | Sierra VarmintKing bullet and 82 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% | 51,982 psi | 88% | 3228 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 50,560 psi | 86% | 3235 fps | 99.9% |
| Accurate 2495 | <<locked>> | 90% | 49,821 psi | 85% | 3232 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 52,069 psi | 89% | 3297 fps | 99.9% |
| Accurate 4064 | <<locked>> | 92% | 49,806 psi | 85% | 3271 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,197 psi | 84% | 3310 fps | 96.4% |
| ADI AR 2206H | <<locked>> | 88% | 51,242 psi | 87% | 3301 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 94% | 52,402 psi | 89% | 3294 fps | 97.6% |
| ADI Benchmark 8208 | <<locked>> | 86% | 50,488 psi | 86% | 3258 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 86% | 50,154 psi | 85% | 3258 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 51,677 psi | 88% | 3373 fps | 98.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 50,691 psi | 86% | 3399 fps | 97.1% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 51,837 psi | 88% | 3317 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 51,721 psi | 88% | 3317 fps | 98.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 51,779 psi | 88% | 3245 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 52,417 psi | 89% | 3337 fps | 97.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,254 psi | 82% | 3314 fps | 96.4% |
| Alliant Reloder-17 | <<locked>> | 98% | 52,649 psi | 90% | 3435 fps | 98.9% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 51,111 psi | 87% | 3304 fps | 97% |
| Bofors RP3 | <<locked>> | 94% | 52,272 psi | 89% | 3333 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 86% | 52,504 psi | 89% | 3251 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 88% | 52,982 psi | 90% | 3343 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 84% | 50,894 psi | 87% | 3376 fps | 97.5% |
| Hodgdon H322 | <<locked>> | 82% | 50,720 psi | 86% | 3271 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 52,054 psi | 89% | 3294 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 49,995 psi | 85% | 3271 fps | 96% |
| Hodgdon H4895 | <<locked>> | 88% | 51,677 psi | 88% | 3317 fps | 98.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,295 psi | 75% | 3179 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 50,705 psi | 86% | 3340 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,693 psi | 59% | 2113 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 52,982 psi | 90% | 3320 fps | 98.7% |
| IMR 3031 | <<locked>> | 88% | 50,865 psi | 87% | 3320 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 51,779 psi | 88% | 3281 fps | 97.8% |
| IMR 4198 | <<locked>> | 82% | 52,069 psi | 89% | 3209 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,789 psi | 80% | 3241 fps | 95.9% |
| IMR 4895 | <<locked>> | 90% | 50,357 psi | 86% | 3314 fps | 98% |
| IMR 8208 XBR | <<locked>> | 86% | 50,488 psi | 86% | 3258 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 82% | 50,401 psi | 86% | 3241 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 88% | 50,328 psi | 86% | 3278 fps | 99.7% |
| Lovex S060 | <<locked>> | 88% | 51,488 psi | 88% | 3232 fps | 98.1% |
| Lovex S062 | <<locked>> | 92% | 51,285 psi | 87% | 3278 fps | 99.1% |
| Norma 201 | <<locked>> | 88% | 50,227 psi | 86% | 3251 fps | 98.9% |
| Norma 202 | <<locked>> | 88% | 50,285 psi | 86% | 3258 fps | 99.9% |
| Norma 203B | <<locked>> | 92% | 51,590 psi | 88% | 3323 fps | 98.2% |
| Norma URPᴾ | <<locked>> | 100% | 48,675 psi | 83% | 3301 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 92% | 52,228 psi | 89% | 3350 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 50,270 psi | 86% | 3281 fps | 97.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 51,590 psi | 88% | 3251 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,012 psi | 60% | 2159 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 50,111 psi | 85% | 3248 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 52,272 psi | 89% | 3409 fps | 97.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 52,359 psi | 89% | 3448 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,023 psi | 83% | 3327 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 86% | 51,111 psi | 87% | 3248 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 90% | 50,604 psi | 86% | 3245 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 96% | 51,837 psi | 88% | 3317 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 50,328 psi | 86% | 3278 fps | 99.7% |
| Shooters World Precision | <<locked>> | 92% | 51,285 psi | 87% | 3278 fps | 99.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 53,084 psi | 90% | 3264 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 50,386 psi | 86% | 3323 fps | 97.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 52,547 psi | 89% | 3264 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 52,605 psi | 90% | 3287 fps | 96.5% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 53,142 psi | 90% | 3323 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 51,851 psi | 88% | 3205 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 51,967 psi | 88% | 3202 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 51,721 psi | 88% | 3294 fps | 99.2% |
| Somchem S335 | <<locked>> | 88% | 51,343 psi | 87% | 3202 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 52,185 psi | 89% | 3284 fps | 98.1% |
| Somchem S355 | <<locked>> | 96% | 52,562 psi | 89% | 3320 fps | 98.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,337 psi | 74% | 3232 fps | 98.3% |
| Vihtavuori N130 | <<locked>> | 84% | 51,590 psi | 88% | 3179 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 51,880 psi | 88% | 3199 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 52,866 psi | 90% | 3284 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 50,879 psi | 87% | 3238 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 50,633 psi | 86% | 3245 fps | 99.3% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 51,387 psi | 87% | 3307 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 86% | 50,966 psi | 87% | 3258 fps | 99% |
| Vihtavuori N540 | <<locked>> | 92% | 52,605 psi | 90% | 3281 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,560 psi | 86% | 3307 fps | 96.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,837 psi | 90% | 3294 fps | 98.9% |
| Winchester 748 | <<locked>> | 86% | 50,140 psi | 85% | 3301 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 90% | 52,924 psi | 90% | 3333 fps | 98.8% |
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% | 43,134 psi | 73% | 3064 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,166 psi | 80% | 3173 fps | 99.6% |
| Accurate 2495 | <<locked>> | 80% | 35,621 psi | 61% | 2936 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 42,235 psi | 72% | 3107 fps | 98.8% |
| Accurate 4064 | <<locked>> | 80% | 33,634 psi | 57% | 2907 fps | 97.6% |
| Accurate 4350 | <<locked>> | 98% | 45,803 psi | 78% | 3241 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 39,697 psi | 68% | 3045 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 88% | 43,540 psi | 74% | 3114 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,684 psi | 71% | 3071 fps | 97.1% |
| Alliant AR-Comp | <<locked>> | 80% | 40,814 psi | 69% | 3091 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,312 psi | 82% | 3304 fps | 98% |
| Alliant Power Pro 2000-MR | 55.4 gr | 86% | 44,063 psi | 75% | 3251 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,118 psi | 68% | 3064 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 37,579 psi | 64% | 3009 fps | 95.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,472 psi | 83% | 3186 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,207 psi | 74% | 3146 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 98% | 45,237 psi | 77% | 3245 fps | 95.4% |
| Alliant Reloder-17 | 57.1 gr | 90% | 39,987 psi | 68% | 3150 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 44,541 psi | 76% | 3166 fps | 95.3% |
| Bofors RP3 | <<locked>> | 84% | 37,188 psi | 63% | 3009 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,555 psi | 74% | 3074 fps | 98.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,030 psi | 68% | 3074 fps | 97.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,859 psi | 75% | 3225 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 47,442 psi | 81% | 3209 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,544 psi | 83% | 3228 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 90% | 46,818 psi | 80% | 3205 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 39,972 psi | 68% | 3061 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 39,044 psi | 66% | 3054 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 38,435 psi | 65% | 3068 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,686 psi | 44% | 1890 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,406 psi | 65% | 3005 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 38,798 psi | 66% | 3074 fps | 99.7% |
| IMR 4064 | <<locked>> | 86% | 42,873 psi | 73% | 3094 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 48,994 psi | 83% | 3156 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 43,714 psi | 74% | 3176 fps | 95% |
| IMR 4895 | <<locked>> | 84% | 41,495 psi | 71% | 3123 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 41,684 psi | 71% | 3071 fps | 97.1% |
| Lovex D073.5 | <<locked>> | 80% | 46,992 psi | 80% | 3176 fps | 99% |
| Lovex D073.6 | <<locked>> | 80% | 38,334 psi | 65% | 3025 fps | 97.9% |
| Lovex S060 | <<locked>> | 80% | 40,292 psi | 69% | 2992 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 35,143 psi | 60% | 2913 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 38,798 psi | 66% | 2999 fps | 96.4% |
| Norma 202 | <<locked>> | 80% | 38,986 psi | 66% | 3022 fps | 98.6% |
| Norma 203B | <<locked>> | 84% | 39,827 psi | 68% | 3068 fps | 95.2% |
| Norma URP | <<locked>> | 98% | 45,585 psi | 78% | 3235 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 86% | 42,337 psi | 72% | 3143 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,886 psi | 70% | 3077 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,179 psi | 77% | 3120 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,860 psi | 44% | 1936 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,760 psi | 80% | 3179 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 42,366 psi | 72% | 3199 fps | 95.2% |
| ReloadSwiss RS 60 | 53.3 gr | 84% | 34,838 psi | 59% | 3022 fps | 96.1% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 45,585 psi | 78% | 3255 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 42,685 psi | 73% | 3077 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 80% | 36,854 psi | 63% | 2940 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 86% | 37,057 psi | 63% | 2999 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,334 psi | 65% | 3025 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 35,143 psi | 60% | 2913 fps | 95.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,487 psi | 84% | 3196 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 41,336 psi | 70% | 3127 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,429 psi | 84% | 3212 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 49,023 psi | 83% | 3219 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 40,872 psi | 70% | 3068 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,495 psi | 69% | 2979 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,359 psi | 57% | 2812 fps | 98.1% |
| Somchem S321 | <<locked>> | 80% | 45,078 psi | 77% | 3163 fps | 98.2% |
| Somchem S335 | <<locked>> | 80% | 39,914 psi | 68% | 2976 fps | 99.3% |
| Somchem S341 | <<locked>> | 82% | 42,395 psi | 72% | 3087 fps | 95.9% |
| Somchem S355 | <<locked>> | 86% | 38,232 psi | 65% | 3012 fps | 95.2% |
| Somchem S365 | <<locked>> | 94% | 35,607 psi | 61% | 3031 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 45,861 psi | 78% | 3081 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,640 psi | 69% | 2986 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,955 psi | 61% | 2946 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 36,927 psi | 63% | 2946 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 84% | 33,953 psi | 58% | 2877 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 96% | 45,005 psi | 77% | 3179 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 41,626 psi | 71% | 3064 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 80% | 35,462 psi | 60% | 2917 fps | 97.6% |
| Vihtavuori N550 | <<locked>> | 98% | 47,369 psi | 81% | 3241 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 40,205 psi | 68% | 3031 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 40,669 psi | 69% | 3100 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,449 psi | 64% | 3002 fps | 95% |
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 103 powders for .280 Rem. loaded with the .284 | 100gr | Sierra VarmintKing. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,448 fps; across all powders the maximum-charge window runs from 2,113 fps to 3,448 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 58–90 %, 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-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 .280 Rem. with the .284 | 100gr | Sierra VarmintKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, 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.