Load Specifications
Load data in caliber 7 x 57 R with .277 | 140gr | Federal Trophy Bonded bullet and 65 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Ramshot Big Game.
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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 43,990 psi | 89% | 2526 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 43,947 psi | 89% | 2579 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 42,989 psi | 87% | 2582 fps | 99.7% |
| Accurate 4064 | <<locked>> | 90% | 44,048 psi | 89% | 2615 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 42,105 psi | 85% | 2641 fps | 96.2% |
| ADI AR 2206H | <<locked>> | 84% | 43,105 psi | 87% | 2585 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 90% | 44,077 psi | 89% | 2585 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 42,540 psi | 86% | 2549 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 84% | 44,614 psi | 90% | 2598 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 44,541 psi | 90% | 2713 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 43,076 psi | 87% | 2605 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 88% | 43,874 psi | 89% | 2621 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 98% | 42,772 psi | 87% | 2651 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 94% | 42,946 psi | 87% | 2690 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 41,974 psi | 85% | 2582 fps | 96.3% |
| Bofors RP3 | <<locked>> | 90% | 42,743 psi | 87% | 2612 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 44,541 psi | 90% | 2543 fps | 99.3% |
| Hodgdon BL-C2 | <<locked>> | 84% | 43,468 psi | 88% | 2615 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 90% | 44,092 psi | 89% | 2615 fps | 96% |
| Hodgdon H4895 | <<locked>> | 84% | 43,410 psi | 88% | 2598 fps | 98.3% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,626 psi | 84% | 2595 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 44,425 psi | 90% | 2667 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,635 psi | 70% | 1657 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 41,916 psi | 85% | 2552 fps | 97.9% |
| IMR 3031 | <<locked>> | 84% | 42,250 psi | 86% | 2598 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 43,424 psi | 88% | 2569 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,308 psi | 88% | 2644 fps | 96.6% |
| IMR 4895 | <<locked>> | 86% | 42,090 psi | 85% | 2598 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 82% | 42,540 psi | 86% | 2549 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 86% | 44,222 psi | 90% | 2615 fps | 99.8% |
| Lovex S060 | <<locked>> | 84% | 43,816 psi | 89% | 2533 fps | 97.8% |
| Lovex S062 | <<locked>> | 88% | 43,062 psi | 87% | 2572 fps | 98.8% |
| Norma 201 | <<locked>> | 84% | 42,264 psi | 86% | 2543 fps | 98.6% |
| Norma 202 | <<locked>> | 84% | 42,351 psi | 86% | 2556 fps | 99.8% |
| Norma 203B | <<locked>> | 88% | 43,105 psi | 87% | 2612 fps | 97.8% |
| Norma URP | <<locked>> | 98% | 42,467 psi | 86% | 2638 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 88% | 42,641 psi | 86% | 2621 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 44,280 psi | 90% | 2615 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,954 psi | 71% | 1696 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 42,656 psi | 87% | 2664 fps | 97.1% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 42,989 psi | 87% | 2703 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 43,598 psi | 88% | 2546 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 86% | 42,598 psi | 86% | 2543 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 92% | 42,656 psi | 87% | 2602 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 44,222 psi | 90% | 2615 fps | 99.8% |
| Shooters World Precision | <<locked>> | 88% | 43,062 psi | 87% | 2572 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 44,295 psi | 90% | 2657 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 44,179 psi | 90% | 2605 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 44,193 psi | 90% | 2510 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 43,656 psi | 89% | 2510 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 43,453 psi | 88% | 2510 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 42,830 psi | 87% | 2566 fps | 97.5% |
| Somchem S355 | <<locked>> | 92% | 43,787 psi | 89% | 2608 fps | 98.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,538 psi | 82% | 2644 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 84% | 44,251 psi | 90% | 2507 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 44,121 psi | 89% | 2572 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 42,728 psi | 87% | 2543 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 92% | 41,858 psi | 85% | 2546 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 96% | 42,018 psi | 85% | 2592 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 82% | 42,554 psi | 86% | 2546 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 88% | 43,685 psi | 89% | 2575 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 98% | 44,034 psi | 89% | 2648 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 43,120 psi | 87% | 2582 fps | 98.1% |
| Winchester 748 | <<locked>> | 84% | 44,237 psi | 90% | 2635 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 86% | 43,685 psi | 89% | 2612 fps | 98.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 41,495 psi | 84% | 2484 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,750 psi | 68% | 2392 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 39,958 psi | 81% | 2526 fps | 99.4% |
| Accurate 4064 | <<locked>> | 80% | 31,937 psi | 65% | 2372 fps | 98.6% |
| Accurate 4350 | <<locked>> | 96% | 39,262 psi | 80% | 2585 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 37,942 psi | 77% | 2480 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 84% | 36,666 psi | 74% | 2434 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,929 psi | 81% | 2497 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 80% | 38,725 psi | 79% | 2503 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 38,957 psi | 79% | 2592 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,241 psi | 63% | 2349 fps | 95.1% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,172 psi | 73% | 2464 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 96% | 40,161 psi | 81% | 2595 fps | 95.5% |
| Alliant Reloder-17 | 41.1 gr | 88% | 35,288 psi | 72% | 2516 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 39,436 psi | 80% | 2530 fps | 95.5% |
| Bofors RP3 | <<locked>> | 82% | 32,721 psi | 66% | 2402 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,105 psi | 85% | 2500 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,898 psi | 77% | 2507 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 88% | 41,307 psi | 84% | 2559 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 38,174 psi | 77% | 2493 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,519 psi | 70% | 2444 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,156 psi | 69% | 2451 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,715 psi | 52% | 1480 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,825 psi | 75% | 2448 fps | 96.5% |
| IMR 3031 | <<locked>> | 80% | 37,057 psi | 75% | 2500 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,013 psi | 73% | 2415 fps | 95.1% |
| IMR 4831 | <<locked>> | 96% | 37,956 psi | 77% | 2539 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 34,621 psi | 70% | 2438 fps | 95.3% |
| IMR 8208 XBR | <<locked>> | 80% | 39,929 psi | 81% | 2497 fps | 98.1% |
| Lovex D073.6 | <<locked>> | 80% | 36,245 psi | 74% | 2464 fps | 98.7% |
| Lovex S060 | <<locked>> | 80% | 38,638 psi | 78% | 2428 fps | 96.6% |
| Lovex S062 | <<locked>> | 80% | 33,460 psi | 68% | 2372 fps | 96.4% |
| Norma 201 | <<locked>> | 80% | 37,159 psi | 75% | 2441 fps | 97.5% |
| Norma 202 | <<locked>> | 80% | 37,159 psi | 75% | 2457 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 35,505 psi | 72% | 2451 fps | 95.6% |
| Norma URP | <<locked>> | 96% | 40,147 psi | 81% | 2592 fps | 95.4% |
| Ramshot Big Game | 38.9 gr | 82% | 35,056 psi | 71% | 2457 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,754 psi | 79% | 2507 fps | 96.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,831 psi | 52% | 1512 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 37,304 psi | 76% | 2552 fps | 95.5% |
| ReloadSwiss RS 60 | 37.3 gr | 80% | 28,892 psi | 59% | 2352 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 40,872 psi | 83% | 2493 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 35,375 psi | 72% | 2395 fps | 97% |
| Rottweil R 903 | <<locked>> | 84% | 32,880 psi | 67% | 2398 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,245 psi | 74% | 2464 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 33,460 psi | 68% | 2372 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 36,419 psi | 74% | 2497 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,564 psi | 74% | 2451 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,986 psi | 79% | 2415 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,981 psi | 65% | 2283 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 38,290 psi | 78% | 2418 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 37,391 psi | 76% | 2461 fps | 96% |
| Somchem S355 | <<locked>> | 84% | 34,069 psi | 69% | 2408 fps | 95.6% |
| Somchem S365 | <<locked>> | 92% | 31,372 psi | 64% | 2428 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 39,088 psi | 79% | 2418 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,330 psi | 70% | 2395 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,143 psi | 71% | 2395 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 82% | 30,284 psi | 61% | 2300 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 94% | 39,378 psi | 80% | 2539 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 39,856 psi | 81% | 2493 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 80% | 33,852 psi | 69% | 2382 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 96% | 41,292 psi | 84% | 2595 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,389 psi | 72% | 2421 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 38,783 psi | 79% | 2533 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,476 psi | 72% | 2448 fps | 96.2% |
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 65 powders for 7 x 57 R loaded with the .277 | 140gr | Federal Trophy Bonded. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,713 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,713 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 65 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, Hodgdon TrailBoss, IMR 4831 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. ReloadSwiss RS 60, Alliant Reloder-17, Ramshot Big Game rank at the top here: for 7 x 57 R with the .277 | 140gr | Federal Trophy Bonded 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.