Load Specifications
Load data in caliber .270 Win. with .278 | 98gr | IBEX Viper bullet and 84 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.
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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>> | 86% | 56,188 psi | 90% | 3238 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,882 psi | 88% | 3255 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 55,579 psi | 89% | 3264 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 52,924 psi | 85% | 3261 fps | 99.9% |
| Accurate 4064 | <<locked>> | 92% | 55,114 psi | 88% | 3304 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 53,853 psi | 86% | 3346 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 88% | 54,737 psi | 88% | 3314 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 94% | 55,564 psi | 89% | 3304 fps | 98.4% |
| ADI Benchmark 8208 | <<locked>> | 86% | 53,795 psi | 86% | 3268 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 86% | 53,998 psi | 87% | 3264 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 55,317 psi | 89% | 3389 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 53,940 psi | 86% | 3419 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 55,593 psi | 89% | 3337 fps | 99.4% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,477 psi | 89% | 3245 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 56,202 psi | 90% | 3356 fps | 98.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 51,590 psi | 83% | 3337 fps | 97.4% |
| Alliant Reloder-17 | <<locked>> | 98% | 56,231 psi | 90% | 3455 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,549 psi | 87% | 3320 fps | 97.9% |
| Bofors RP3 | <<locked>> | 92% | 53,098 psi | 85% | 3297 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,811 psi | 89% | 3258 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 86% | 53,301 psi | 85% | 3297 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,491 psi | 87% | 3392 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 82% | 54,230 psi | 87% | 3278 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,376 psi | 89% | 3297 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,172 psi | 87% | 3301 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 88% | 55,201 psi | 89% | 3327 fps | 99.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,848 psi | 77% | 3209 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,288 psi | 87% | 3356 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,476 psi | 57% | 2087 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,347 psi | 90% | 3330 fps | 99.3% |
| IMR 3031 | <<locked>> | 88% | 54,882 psi | 88% | 3330 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,201 psi | 89% | 3291 fps | 98.5% |
| IMR 4198 | <<locked>> | 82% | 54,737 psi | 88% | 3199 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,778 psi | 81% | 3271 fps | 97.1% |
| IMR 4895 | <<locked>> | 90% | 54,244 psi | 87% | 3337 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 86% | 53,795 psi | 86% | 3268 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 82% | 54,534 psi | 87% | 3258 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 88% | 54,795 psi | 88% | 3304 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,520 psi | 87% | 3238 fps | 98.8% |
| Lovex S062 | <<locked>> | 92% | 55,274 psi | 89% | 3297 fps | 99.6% |
| Lovex S065 | <<locked>> | 98% | 54,433 psi | 87% | 3271 fps | 96.3% |
| Norma 201 | <<locked>> | 88% | 54,259 psi | 87% | 3268 fps | 99.5% |
| Norma 202 | <<locked>> | 88% | 54,085 psi | 87% | 3274 fps | 100% |
| Norma 203B | <<locked>> | 92% | 55,347 psi | 89% | 3343 fps | 98.9% |
| Norma URPᴾ | <<locked>> | 100% | 52,634 psi | 84% | 3330 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 92% | 55,622 psi | 89% | 3360 fps | 98.8% |
| Ramshot TAC | <<locked>> | 86% | 54,244 psi | 87% | 3264 fps | 96.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 53,795 psi | 86% | 3297 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,969 psi | 88% | 3264 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,766 psi | 57% | 2133 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 53,200 psi | 85% | 3251 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 56,376 psi | 90% | 3428 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,985 psi | 90% | 3465 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,953 psi | 85% | 3356 fps | 97.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 53,345 psi | 86% | 3373 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 86% | 55,666 psi | 89% | 3271 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,389 psi | 87% | 3261 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 96% | 56,260 psi | 90% | 3343 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 98% | 54,433 psi | 87% | 3271 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 54,795 psi | 88% | 3304 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,274 psi | 89% | 3297 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 53,969 psi | 87% | 3340 fps | 98.6% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,767 psi | 89% | 3264 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 53,011 psi | 85% | 3245 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 53,272 psi | 85% | 3278 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 55,274 psi | 89% | 3209 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 55,288 psi | 89% | 3202 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 55,245 psi | 89% | 3304 fps | 99.7% |
| Somchem S335 | <<locked>> | 88% | 54,998 psi | 88% | 3209 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,724 psi | 89% | 3301 fps | 98.8% |
| Somchem S355 | <<locked>> | 94% | 53,258 psi | 85% | 3281 fps | 98.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 47,340 psi | 76% | 3271 fps | 99.2% |
| Vihtavuori N130 | <<locked>> | 84% | 55,129 psi | 88% | 3182 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,100 psi | 88% | 3196 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 53,577 psi | 86% | 3238 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 54,418 psi | 87% | 3245 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,447 psi | 87% | 3261 fps | 99.7% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 55,100 psi | 88% | 3327 fps | 97.7% |
| Vihtavuori N530 | <<locked>> | 86% | 54,259 psi | 87% | 3264 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 90% | 52,953 psi | 85% | 3238 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,317 psi | 87% | 3330 fps | 97.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 56,086 psi | 90% | 3307 fps | 99.4% |
| Winchester 748 | <<locked>> | 86% | 53,896 psi | 86% | 3317 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 53,040 psi | 85% | 3287 fps | 99% |
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% | 46,905 psi | 75% | 3081 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,445 psi | 82% | 3196 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 40,756 psi | 65% | 2995 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,412 psi | 74% | 3140 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 38,464 psi | 62% | 2972 fps | 99% |
| Accurate 4350 | <<locked>> | 94% | 44,077 psi | 71% | 3156 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 43,105 psi | 69% | 3077 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 84% | 41,437 psi | 66% | 3015 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,918 psi | 72% | 3091 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 80% | 44,585 psi | 71% | 3104 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,025 psi | 83% | 3327 fps | 98.8% |
| Alliant Power Pro 2000-MR | 50.9 gr | 84% | 44,396 psi | 71% | 3209 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,492 psi | 59% | 2927 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,228 psi | 84% | 3192 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 41,408 psi | 66% | 3051 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 94% | 43,250 psi | 69% | 3153 fps | 95% |
| Alliant Reloder-17 | 51.3 gr | 86% | 38,189 psi | 61% | 3051 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 44,846 psi | 72% | 3127 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 36,318 psi | 58% | 2933 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,659 psi | 75% | 3087 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,918 psi | 70% | 3110 fps | 98.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 47,456 psi | 76% | 3255 fps | 97% |
| Hodgdon H322 | <<locked>> | 80% | 50,763 psi | 81% | 3219 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,953 psi | 83% | 3238 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 47,500 psi | 76% | 3169 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 43,410 psi | 70% | 3087 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 37,579 psi | 60% | 2969 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,218 psi | 63% | 3038 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,397 psi | 42% | 1867 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,408 psi | 66% | 3028 fps | 96.5% |
| IMR 3031 | <<locked>> | 80% | 42,685 psi | 68% | 3107 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 40,973 psi | 66% | 2999 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 51,779 psi | 83% | 3150 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 44,657 psi | 72% | 3150 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 39,871 psi | 64% | 3028 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 44,918 psi | 72% | 3091 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 80% | 51,227 psi | 82% | 3199 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 42,337 psi | 68% | 3061 fps | 98.9% |
| Lovex S060 | <<locked>> | 80% | 43,279 psi | 69% | 3012 fps | 96.6% |
| Lovex S062 | <<locked>> | 80% | 38,827 psi | 62% | 2956 fps | 96.7% |
| Lovex S065 | <<locked>> | 96% | 51,300 psi | 82% | 3212 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 42,670 psi | 68% | 3035 fps | 97.7% |
| Norma 202 | <<locked>> | 80% | 42,627 psi | 68% | 3051 fps | 99.4% |
| Norma 203B | <<locked>> | 80% | 38,450 psi | 62% | 2982 fps | 95% |
| Norma URP | <<locked>> | 94% | 43,613 psi | 70% | 3143 fps | 95% |
| Ramshot Big Game | <<locked>> | 82% | 40,321 psi | 65% | 3045 fps | 95.3% |
| Ramshot TAC | <<locked>> | 84% | 51,010 psi | 82% | 3202 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,208 psi | 71% | 3104 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,631 psi | 78% | 3143 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 43% | 1909 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,183 psi | 80% | 3196 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 43,134 psi | 69% | 3166 fps | 95.8% |
| ReloadSwiss RS 60 | 47.7 gr | 80% | 33,533 psi | 54% | 2930 fps | 95.8% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 46,398 psi | 74% | 3225 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 50,024 psi | 80% | 3304 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 46,818 psi | 75% | 3107 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 40,843 psi | 65% | 2982 fps | 97.2% |
| Rottweil R 903 | <<locked>> | 82% | 36,405 psi | 58% | 2927 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 51,300 psi | 82% | 3212 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,337 psi | 68% | 3061 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 38,827 psi | 62% | 2956 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 39,305 psi | 63% | 3028 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,431 psi | 84% | 3209 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 46,296 psi | 74% | 3114 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,553 psi | 67% | 3035 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,584 psi | 70% | 2992 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,303 psi | 58% | 2835 fps | 99% |
| Somchem S321 | <<locked>> | 80% | 48,704 psi | 78% | 3182 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 43,453 psi | 70% | 2999 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 42,888 psi | 69% | 3051 fps | 96.3% |
| Somchem S355 | <<locked>> | 82% | 37,173 psi | 60% | 2933 fps | 95.1% |
| Somchem S365 | <<locked>> | 90% | 34,795 psi | 56% | 2963 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 48,965 psi | 79% | 3081 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,642 psi | 70% | 2995 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,566 psi | 63% | 2976 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,190 psi | 64% | 2972 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 80% | 33,243 psi | 53% | 2805 fps | 95.3% |
| Vihtavuori N160 | <<locked>> | 94% | 45,658 psi | 73% | 3146 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 45,020 psi | 72% | 3087 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 80% | 38,972 psi | 62% | 2956 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 94% | 44,976 psi | 72% | 3146 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 38,305 psi | 61% | 2940 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 44,222 psi | 71% | 3130 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,959 psi | 66% | 3038 fps | 96.5% |
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 84 powders for .270 Win. loaded with the .278 | 98gr | IBEX Viper. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,465 fps; across all powders the maximum-charge window runs from 2,087 fps to 3,465 fps. Accurate 4350 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 98.0 gr projectile in 0.278" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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 .270 Win. with the .278 | 98gr | IBEX Viper 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.