Load Specifications
Load data in caliber .270 WSM with .277 | 130gr | Nosler Ballistic Tip Hunting bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 4350, Alliant Reloder-26 and Norma MRP.
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 2495 | <<locked>> | 82% | 57,508 psi | 90% | 2966 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 54,650 psi | 86% | 2986 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 57,203 psi | 90% | 3091 fps | 99.8% |
| Accurate 4064 | <<locked>> | 82% | 54,433 psi | 85% | 2976 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,419 psi | 87% | 3087 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 55,666 psi | 87% | 3179 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 86% | 57,493 psi | 90% | 3058 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 56,202 psi | 88% | 3133 fps | 98.3% |
| ADI AR 2213 | <<locked>> | 98% | 53,925 psi | 85% | 3120 fps | 96.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 57,392 psi | 90% | 3192 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,143 psi | 86% | 3031 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,347 psi | 87% | 3054 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,956 psi | 88% | 3146 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 57,522 psi | 90% | 3169 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,767 psi | 87% | 3120 fps | 98.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 57,087 psi | 89% | 3186 fps | 98.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,882 psi | 84% | 3107 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,789 psi | 73% | 3031 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,172 psi | 85% | 3196 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,112 psi | 82% | 3100 fps | 97.7% |
| Bofors RP3 | <<locked>> | 84% | 56,028 psi | 88% | 3048 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 57,087 psi | 89% | 3186 fps | 98.6% |
| Bofors RP7 | <<locked>> | 88% | 55,376 psi | 87% | 3035 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 84% | 56,275 psi | 88% | 3064 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 57,319 psi | 90% | 3140 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 88% | 56,942 psi | 89% | 3100 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 96% | 54,128 psi | 85% | 3064 fps | 96.1% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,623 psi | 89% | 3107 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,405 psi | 88% | 3064 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 57,696 psi | 90% | 3104 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,745 psi | 72% | 3064 fps | 97% |
| Hodgdon Superformance | <<locked>> | 88% | 53,882 psi | 84% | 3114 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,506 psi | 57% | 1926 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,913 psi | 89% | 3038 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 56,072 psi | 88% | 3025 fps | 99.3% |
| IMR 4350 | <<locked>> | 92% | 56,507 psi | 89% | 3068 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,753 psi | 89% | 3058 fps | 99.3% |
| IMR 4831 | <<locked>> | 92% | 55,709 psi | 87% | 3077 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,811 psi | 89% | 3084 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,506 psi | 87% | 3054 fps | 96.6% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,071 psi | 86% | 3156 fps | 97.1% |
| Lovex S062 | <<locked>> | 84% | 57,450 psi | 90% | 3038 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 57,159 psi | 90% | 3061 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 54,984 psi | 86% | 3045 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,543 psi | 75% | 2933 fps | 98.8% |
| Norma 203B | <<locked>> | 82% | 54,650 psi | 86% | 3038 fps | 100% |
| Norma 204 | <<locked>> | 92% | 57,421 psi | 90% | 3127 fps | 98.3% |
| Norma MRP | <<locked>> | 98% | 56,594 psi | 89% | 3209 fps | 99.4% |
| Norma URP | <<locked>> | 92% | 57,435 psi | 90% | 3123 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,332 psi | 87% | 3064 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,564 psi | 87% | 3176 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 92% | 56,405 psi | 88% | 3127 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,864 psi | 78% | 3041 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,347 psi | 59% | 1975 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,057 psi | 88% | 3048 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,855 psi | 89% | 3159 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 55,172 psi | 86% | 3107 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 57,609 psi | 90% | 3199 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,919 psi | 72% | 3061 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 82% | 55,767 psi | 87% | 2995 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,159 psi | 88% | 3045 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,404 psi | 85% | 3041 fps | 96.9% |
| Rottweil R 905 | <<locked>> | 96% | 54,998 psi | 86% | 3107 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 55,376 psi | 87% | 3035 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 90% | 57,159 psi | 90% | 3061 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 57,450 psi | 90% | 3038 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,984 psi | 86% | 3045 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,085 psi | 85% | 3051 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,782 psi | 89% | 2923 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,782 psi | 89% | 3009 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,534 psi | 85% | 3100 fps | 98.2% |
| Somchem S355 | <<locked>> | 86% | 56,086 psi | 88% | 3041 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,999 psi | 88% | 3031 fps | 96.5% |
| Somchem S365 | <<locked>> | 94% | 57,276 psi | 90% | 3127 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,724 psi | 87% | 3081 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 82% | 56,231 psi | 88% | 2953 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,492 psi | 89% | 2966 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 57,334 psi | 90% | 3012 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,043 psi | 88% | 3064 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,882 psi | 86% | 3048 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 82% | 54,491 psi | 85% | 2959 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,230 psi | 87% | 3068 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 56,260 psi | 88% | 3133 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,681 psi | 89% | 3199 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,593 psi | 87% | 3025 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 57,595 psi | 90% | 3143 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,559 psi | 78% | 3176 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,811 psi | 87% | 3071 fps | 98.2% |
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 2495 | <<locked>> | 80% | 53,940 psi | 85% | 2917 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 51,155 psi | 80% | 2923 fps | 98.1% |
| Accurate 3100 | <<locked>> | 86% | 35,476 psi | 56% | 2674 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 51,111 psi | 80% | 2927 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,175 psi | 61% | 2782 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 96% | 51,866 psi | 81% | 3114 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 47,935 psi | 75% | 2897 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 43,149 psi | 68% | 2881 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 96% | 50,517 psi | 79% | 3058 fps | 95.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,476 psi | 84% | 3130 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,660 psi | 76% | 2923 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,750 psi | 81% | 2995 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,855 psi | 59% | 2792 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,207 psi | 68% | 2923 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,844 psi | 67% | 2874 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 43,497 psi | 68% | 2930 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,992 psi | 44% | 2533 fps | 96.3% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,895 psi | 53% | 2720 fps | 95.7% |
| Alliant Reloder-26 | 58.6 gr | 82% | 32,097 psi | 50% | 2710 fps | 95.7% |
| Bofors RP15 | <<locked>> | 94% | 42,873 psi | 67% | 2917 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 49,037 psi | 77% | 2936 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 43,497 psi | 68% | 2930 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 42,888 psi | 67% | 2799 fps | 96.4% |
| Hodgdon H380 | <<locked>> | 80% | 49,371 psi | 77% | 2949 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 41,046 psi | 64% | 2831 fps | 96.5% |
| Hodgdon H4350 | <<locked>> | 80% | 43,932 psi | 69% | 2854 fps | 95.9% |
| Hodgdon H4831 | <<locked>> | 94% | 50,415 psi | 79% | 2999 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,026 psi | 83% | 3045 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,549 psi | 56% | 2680 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,911 psi | 84% | 3045 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 42,888 psi | 67% | 2999 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 40,074 psi | 63% | 2841 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 43% | 1722 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,430 psi | 79% | 2936 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,431 psi | 82% | 2963 fps | 98.8% |
| IMR 4350 | 52.9 gr | 80% | 38,493 psi | 60% | 2717 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,396 psi | 70% | 2831 fps | 97.3% |
| IMR 4831 | <<locked>> | 80% | 37,637 psi | 59% | 2733 fps | 98.1% |
| IMR 4895 | <<locked>> | 80% | 53,113 psi | 83% | 3025 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,081 psi | 77% | 2940 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 96% | 48,008 psi | 75% | 3022 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 50,691 psi | 79% | 2930 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,989 psi | 66% | 2779 fps | 98% |
| Lovex S070 | <<locked>> | 80% | 40,089 psi | 63% | 2756 fps | 96.4% |
| Lovex S071 | <<locked>> | 90% | 34,389 psi | 54% | 2648 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 51,111 psi | 80% | 2982 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,685 psi | 68% | 2871 fps | 95.3% |
| Norma MRP | 61.1 gr | 88% | 39,856 psi | 62% | 2881 fps | 96% |
| Norma URP | <<locked>> | 80% | 38,769 psi | 61% | 2772 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 80% | 51,735 psi | 81% | 3005 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 48,254 psi | 76% | 3038 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 37,768 psi | 59% | 2762 fps | 96.4% |
| Ramshot Magnum | <<locked>> | 94% | 39,958 psi | 63% | 2835 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,862 psi | 44% | 1765 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,327 psi | 77% | 2933 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,905 psi | 72% | 2982 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,073 psi | 61% | 2802 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,739 psi | 59% | 2808 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 39,740 psi | 62% | 2910 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 52,402 psi | 82% | 2943 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,079 psi | 72% | 2877 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,688 psi | 75% | 2920 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 42,090 psi | 66% | 2858 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 42,888 psi | 67% | 2799 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,989 psi | 66% | 2779 fps | 98% |
| Shooters World Precision | <<locked>> | 80% | 50,691 psi | 79% | 2930 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,089 psi | 63% | 2756 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,471 psi | 74% | 2936 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,094 psi | 74% | 2779 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,959 psi | 64% | 2717 fps | 96.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,698 psi | 65% | 2851 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 46,456 psi | 73% | 2881 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,460 psi | 82% | 2972 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 35,317 psi | 55% | 2730 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 39,943 psi | 63% | 2779 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 52,750 psi | 83% | 2900 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,823 psi | 83% | 2913 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,208 psi | 69% | 2802 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,219 psi | 63% | 2776 fps | 98.5% |
| Vihtavuori N165 | <<locked>> | 92% | 42,090 psi | 66% | 2815 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 51,256 psi | 80% | 2910 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,798 psi | 62% | 2776 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 80% | 31,009 psi | 49% | 2612 fps | 96.4% |
| Vihtavuori N560 | <<locked>> | 94% | 49,559 psi | 78% | 3068 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,436 psi | 62% | 2743 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 41,263 psi | 65% | 2838 fps | 96.6% |
| Winchester StaBALL HD | <<locked>> | 82% | 26,382 psi | 41% | 2559 fps | 96.1% |
| Winchester Supreme 780 | <<locked>> | 90% | 42,047 psi | 66% | 2818 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 88 powders for .270 WSM loaded with the .277 | 130gr | Nosler Ballistic Tip Hunting. Norma MRP delivers the highest muzzle velocity at 3,209 fps; across all powders the maximum-charge window runs from 1,926 fps to 3,209 fps. Accurate 3100 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.277" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, 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. IMR 4350, Alliant Reloder-26, Norma MRP rank at the top here: for .270 WSM with the .277 | 130gr | Nosler Ballistic Tip Hunting 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.