Load Specifications
Load data in caliber .270 Win. with .277 | 180gr | Woodleigh PP SN bullet and 89 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Ramshot Grand and ReloadSwiss RS 70.
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 2700 | <<locked>> | 84% | 53,548 psi | 86% | 2454 fps | 99.5% |
| Accurate 3100 | <<locked>> | 98% | 54,056 psi | 87% | 2540 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 55,361 psi | 89% | 2461 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 56,333 psi | 90% | 2575 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 53,113 psi | 85% | 2628 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 55,013 psi | 88% | 2493 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,272 psi | 85% | 2572 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 98% | 54,868 psi | 88% | 2626 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 43,236 psi | 69% | 2419 fps | 95.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,493 psi | 62% | 2386 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,057 psi | 90% | 2515 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,318 psi | 90% | 2536 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,635 psi | 86% | 2579 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,534 psi | 87% | 2593 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 52,866 psi | 85% | 2565 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,418 psi | 87% | 2623 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,014 psi | 90% | 2596 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,602 psi | 78% | 2552 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,766 psi | 88% | 2683 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,765 psi | 85% | 2605 fps | 99.1% |
| Bofors RP3 | <<locked>> | 82% | 53,287 psi | 85% | 2484 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,512 psi | 71% | 2487 fps | 96.9% |
| Bofors RP5 | <<locked>> | 98% | 53,925 psi | 86% | 2621 fps | 99.3% |
| Bofors RP7 | <<locked>> | 88% | 56,188 psi | 90% | 2530 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 43,685 psi | 70% | 2444 fps | 97% |
| Hodgdon H380 | <<locked>> | 82% | 53,606 psi | 86% | 2503 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 55,782 psi | 89% | 2592 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 90% | 56,289 psi | 90% | 2566 fps | 99.5% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 55,448 psi | 89% | 2561 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,563 psi | 86% | 2556 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,925 psi | 86% | 2509 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,274 psi | 89% | 2533 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,383 psi | 74% | 2598 fps | 99% |
| Hodgdon Superformance | <<locked>> | 88% | 54,665 psi | 88% | 2613 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,550 psi | 60% | 1546 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,795 psi | 88% | 2484 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,259 psi | 87% | 2474 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,275 psi | 90% | 2506 fps | 99.9% |
| IMR 4350 | <<locked>> | 90% | 53,693 psi | 86% | 2513 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,172 psi | 87% | 2503 fps | 99.8% |
| IMR 4831 | <<locked>> | 94% | 54,172 psi | 87% | 2534 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 56,231 psi | 90% | 2559 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 98% | 56,072 psi | 90% | 2660 fps | 98.8% |
| Lovex S062 | <<locked>> | 82% | 54,911 psi | 88% | 2471 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,476 psi | 87% | 2501 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 55,956 psi | 90% | 2544 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,139 psi | 79% | 2460 fps | 99.8% |
| Norma 203B | <<locked>> | 82% | 55,666 psi | 89% | 2524 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,259 psi | 87% | 2562 fps | 99.1% |
| Norma MRP | <<locked>> | 96% | 53,548 psi | 86% | 2645 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 54,926 psi | 88% | 2562 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 56,333 psi | 90% | 2549 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,941 psi | 90% | 2669 fps | 99% |
| Ramshot Hunter | <<locked>> | 90% | 53,447 psi | 86% | 2565 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 52,344 psi | 84% | 2590 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,247 psi | 61% | 1581 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,432 psi | 86% | 2492 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,041 psi | 87% | 2582 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 56,217 psi | 90% | 2600 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,360 psi | 87% | 2626 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,500 psi | 76% | 2593 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 53,838 psi | 86% | 2487 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,013 psi | 88% | 2547 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 96% | 55,782 psi | 89% | 2603 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 88% | 56,188 psi | 90% | 2530 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,476 psi | 87% | 2501 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 54,911 psi | 88% | 2471 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,956 psi | 90% | 2546 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,114 psi | 88% | 2539 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,273 psi | 87% | 2372 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,853 psi | 86% | 2459 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,347 psi | 89% | 2598 fps | 99.4% |
| Somchem S355 | <<locked>> | 84% | 53,679 psi | 86% | 2481 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 56,434 psi | 90% | 2541 fps | 98.1% |
| Somchem S365 | <<locked>> | 92% | 54,563 psi | 87% | 2562 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 56,246 psi | 90% | 2578 fps | 99.8% |
| Unknown powder | <<locked>> | 88% | 55,201 psi | 89% | 2562 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 55,143 psi | 88% | 2464 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,724 psi | 89% | 2535 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,230 psi | 89% | 2533 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 82% | 56,115 psi | 90% | 2469 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 56,362 psi | 90% | 2580 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,722 psi | 86% | 2576 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 53,925 psi | 86% | 2645 fps | 98.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,937 psi | 80% | 2559 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 56,260 psi | 90% | 2520 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,782 psi | 89% | 2592 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,807 psi | 81% | 2669 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,244 psi | 87% | 2548 fps | 99.2% |
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 2700 | <<locked>> | 80% | 47,065 psi | 75% | 2356 fps | 98.7% |
| Accurate 3100 | <<locked>> | 80% | 29,675 psi | 48% | 2108 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 52,141 psi | 84% | 2421 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,176 psi | 64% | 2333 fps | 99.7% |
| Accurate MAGPRO | <<locked>> | 94% | 46,064 psi | 74% | 2513 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 48,834 psi | 78% | 2407 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 36,172 psi | 58% | 2267 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 90% | 41,887 psi | 67% | 2411 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 98% | 40,698 psi | 65% | 2368 fps | 95% |
| ADI AR 2225 | <<locked>> | 96% | 33,083 psi | 53% | 2275 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,487 psi | 79% | 2426 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,765 psi | 85% | 2489 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,841 psi | 62% | 2340 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,309 psi | 71% | 2447 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 36,143 psi | 58% | 2268 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 86% | 36,303 psi | 58% | 2314 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,674 psi | 46% | 2137 fps | 98.8% |
| Alliant Reloder-25 | <<locked>> | 84% | 28,601 psi | 46% | 2149 fps | 95.7% |
| Alliant Reloder-26 | 45.4 gr | 80% | 30,661 psi | 49% | 2244 fps | 97.6% |
| Bofors RP15 | <<locked>> | 88% | 35,839 psi | 57% | 2303 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 50,140 psi | 80% | 2442 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 37,956 psi | 61% | 2383 fps | 95.2% |
| Bofors RP5 | <<locked>> | 86% | 36,303 psi | 58% | 2313 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 43,743 psi | 70% | 2337 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 96% | 38,348 psi | 61% | 2336 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 50,154 psi | 80% | 2454 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 45,730 psi | 73% | 2441 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 80% | 41,307 psi | 66% | 2326 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 94% | 44,469 psi | 71% | 2412 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 90% | 43,888 psi | 70% | 2402 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,405 psi | 58% | 2240 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,735 psi | 83% | 2487 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 92% | 35,824 psi | 57% | 2372 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 40,828 psi | 65% | 2393 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 44% | 1377 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,329 psi | 82% | 2438 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,066 psi | 77% | 2385 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,876 psi | 75% | 2366 fps | 99.2% |
| IMR 4350 | <<locked>> | 80% | 39,450 psi | 63% | 2280 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,165 psi | 72% | 2362 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 34,983 psi | 56% | 2220 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 88% | 43,947 psi | 70% | 2365 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 88% | 40,118 psi | 64% | 2389 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 51,764 psi | 83% | 2429 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,801 psi | 69% | 2321 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 41,147 psi | 66% | 2311 fps | 98.4% |
| Lovex S071 | <<locked>> | 84% | 29,109 psi | 47% | 2094 fps | 95.5% |
| Norma 203B | <<locked>> | 80% | 52,127 psi | 84% | 2477 fps | 100% |
| Norma 204 | <<locked>> | 80% | 38,928 psi | 62% | 2307 fps | 96% |
| Norma MRP | <<locked>> | 82% | 33,170 psi | 53% | 2271 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 39,900 psi | 64% | 2328 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 80% | 52,794 psi | 85% | 2503 fps | 100% |
| Ramshot Grand | 48.8 gr | 86% | 38,783 psi | 62% | 2375 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 38,566 psi | 62% | 2320 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 86% | 33,620 psi | 54% | 2251 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,065 psi | 45% | 1412 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,082 psi | 80% | 2444 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,021 psi | 75% | 2488 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,842 psi | 64% | 2350 fps | 99.6% |
| ReloadSwiss RS 70 | 45 gr | 80% | 38,551 psi | 62% | 2364 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 32,677 psi | 52% | 2294 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 47,326 psi | 76% | 2396 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 40,161 psi | 64% | 2303 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 82% | 35,114 psi | 56% | 2248 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 43,743 psi | 70% | 2337 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,801 psi | 69% | 2321 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 51,764 psi | 83% | 2429 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,147 psi | 66% | 2313 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,327 psi | 77% | 2445 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,037 psi | 77% | 2294 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,771 psi | 67% | 2272 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 34,780 psi | 56% | 2244 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 47,340 psi | 76% | 2392 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 43,424 psi | 70% | 2342 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 36,419 psi | 58% | 2289 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 33,620 psi | 54% | 2192 fps | 95.5% |
| Unknown powder | <<locked>> | 80% | 42,714 psi | 68% | 2371 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 40,654 psi | 65% | 2257 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,873 psi | 69% | 2347 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 86% | 34,185 psi | 55% | 2201 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 52,895 psi | 85% | 2429 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 43,323 psi | 69% | 2386 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 31,952 psi | 51% | 2203 fps | 98.7% |
| Vihtavuori N560 | <<locked>> | 90% | 41,466 psi | 66% | 2432 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 94% | 40,321 psi | 65% | 2405 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,016 psi | 64% | 2292 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,730 psi | 73% | 2441 fps | 99.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,338 psi | 41% | 2132 fps | 98.5% |
| Winchester Supreme 780 | <<locked>> | 82% | 35,520 psi | 57% | 2233 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 89 powders for .270 Win. loaded with the .277 | 180gr | Woodleigh PP SN. Alliant Reloder-26 delivers the highest muzzle velocity at 2,683 fps; across all powders the maximum-charge window runs from 1,546 fps to 2,683 fps. ADI AR 2217 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.277" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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 Reloder-26, Ramshot Grand, ReloadSwiss RS 70 rank at the top here: for .270 Win. with the .277 | 180gr | Woodleigh PP SN 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.