Load Specifications
Load data in caliber 7 x 57 R with .284 | 150gr | Barnes TTSX BT bullet and 64 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 ReloadSwiss RS 62.
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 2495 | <<locked>> | 86% | 43,830 psi | 89% | 2507 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 44,077 psi | 89% | 2546 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 42,989 psi | 87% | 2595 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 82% | 42,844 psi | 87% | 2520 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 88% | 44,048 psi | 89% | 2523 fps | 98.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 44,541 psi | 90% | 2657 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 43,207 psi | 88% | 2543 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,932 psi | 89% | 2559 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 96% | 42,946 psi | 87% | 2602 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 92% | 43,120 psi | 87% | 2638 fps | 99.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,156 psi | 69% | 2441 fps | 96.5% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 42,076 psi | 85% | 2523 fps | 97.4% |
| Bofors RP3 | <<locked>> | 88% | 42,815 psi | 87% | 2549 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 43,540 psi | 88% | 2552 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 88% | 44,338 psi | 90% | 2559 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 82% | 43,207 psi | 88% | 2530 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 41,872 psi | 85% | 2543 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 41,916 psi | 85% | 2556 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,867 psi | 71% | 1617 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 44,425 psi | 90% | 2536 fps | 99.1% |
| IMR 3031 | <<locked>> | 82% | 42,424 psi | 86% | 2526 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 43,453 psi | 88% | 2507 fps | 98.3% |
| IMR 4831 | <<locked>> | 98% | 44,077 psi | 89% | 2595 fps | 97.8% |
| IMR 4895 | <<locked>> | 84% | 41,945 psi | 85% | 2533 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 84% | 44,425 psi | 90% | 2549 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 43,410 psi | 88% | 2464 fps | 98.6% |
| Lovex S062 | <<locked>> | 86% | 43,062 psi | 87% | 2510 fps | 99.4% |
| Lovex S065 | <<locked>> | 92% | 42,322 psi | 86% | 2497 fps | 95.8% |
| Norma 201 | <<locked>> | 82% | 41,843 psi | 85% | 2474 fps | 99.2% |
| Norma 202 | <<locked>> | 82% | 42,163 psi | 86% | 2487 fps | 100% |
| Norma 203B | <<locked>> | 86% | 43,192 psi | 88% | 2549 fps | 98.6% |
| Norma URP | <<locked>> | 96% | 43,134 psi | 87% | 2592 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 86% | 42,743 psi | 87% | 2562 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 44,367 psi | 90% | 2556 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,186 psi | 71% | 1657 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 43,062 psi | 87% | 2605 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 42,946 psi | 87% | 2641 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,786 psi | 87% | 2612 fps | 97.2% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 43,395 psi | 88% | 2625 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 84% | 42,177 psi | 86% | 2474 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 90% | 42,728 psi | 87% | 2539 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 92% | 42,322 psi | 86% | 2497 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 44,425 psi | 90% | 2549 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 43,062 psi | 87% | 2510 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 44,425 psi | 90% | 2595 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 43,134 psi | 87% | 2507 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 44,251 psi | 90% | 2543 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 43,787 psi | 89% | 2441 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 43,613 psi | 88% | 2441 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 43,062 psi | 87% | 2441 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 42,859 psi | 87% | 2507 fps | 98.4% |
| Somchem S355 | <<locked>> | 90% | 43,845 psi | 89% | 2546 fps | 99% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,555 psi | 88% | 2641 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 82% | 44,034 psi | 89% | 2434 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 44,382 psi | 90% | 2507 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 42,554 psi | 86% | 2470 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 41,829 psi | 85% | 2484 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 94% | 42,337 psi | 86% | 2539 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 86% | 43,685 psi | 89% | 2510 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 44,411 psi | 90% | 2592 fps | 97.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,405 psi | 74% | 2513 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 42,917 psi | 87% | 2526 fps | 99% |
| Winchester 748 | <<locked>> | 82% | 44,570 psi | 90% | 2572 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 43,468 psi | 88% | 2546 fps | 99.1% |
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 2495 | <<locked>> | 80% | 35,824 psi | 73% | 2369 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,895 psi | 69% | 2356 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 34,592 psi | 70% | 2428 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 40,234 psi | 82% | 2467 fps | 98% |
| ADI AR 2208 | <<locked>> | 80% | 34,200 psi | 69% | 2323 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 36,318 psi | 74% | 2480 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,388 psi | 68% | 2343 fps | 97% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,013 psi | 73% | 2402 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,621 psi | 72% | 2444 fps | 95.2% |
| Alliant Reloder-17 | 39.6 gr | 82% | 30,835 psi | 63% | 2352 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,082 psi | 65% | 2388 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,247 psi | 80% | 2467 fps | 96.7% |
| Bofors RP3 | <<locked>> | 80% | 32,619 psi | 66% | 2339 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,567 psi | 82% | 2497 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 84% | 38,682 psi | 78% | 2451 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 40,538 psi | 82% | 2480 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,545 psi | 62% | 2293 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,332 psi | 74% | 2444 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,846 psi | 52% | 1444 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,117 psi | 79% | 2438 fps | 98.2% |
| IMR 3031 | <<locked>> | 80% | 39,929 psi | 81% | 2484 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,824 psi | 73% | 2356 fps | 96.3% |
| IMR 4831 | <<locked>> | 92% | 35,926 psi | 73% | 2438 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 36,883 psi | 75% | 2431 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 80% | 38,667 psi | 78% | 2448 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 40,799 psi | 83% | 2415 fps | 98.1% |
| Lovex S062 | <<locked>> | 80% | 35,534 psi | 72% | 2362 fps | 98.1% |
| Lovex S065 | <<locked>> | 90% | 39,755 psi | 81% | 2444 fps | 95% |
| Norma 201 | <<locked>> | 80% | 39,262 psi | 80% | 2425 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 39,537 psi | 80% | 2438 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,404 psi | 72% | 2392 fps | 96.7% |
| Norma URP | <<locked>> | 90% | 35,288 psi | 72% | 2431 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 34,882 psi | 71% | 2402 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,394 psi | 84% | 2500 fps | 98.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,962 psi | 53% | 1476 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,405 psi | 76% | 2493 fps | 96.7% |
| ReloadSwiss RS 60 | 38.6 gr | 80% | 30,676 psi | 62% | 2359 fps | 97.7% |
| ReloadSwiss RS 62 | 44.3 gr | 92% | 37,057 psi | 75% | 2497 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,756 psi | 83% | 2569 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 37,391 psi | 76% | 2382 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 30,632 psi | 62% | 2287 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 39,755 psi | 81% | 2444 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,667 psi | 78% | 2448 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 35,534 psi | 72% | 2362 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,923 psi | 65% | 2336 fps | 95.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,176 psi | 81% | 2451 fps | 96% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,783 psi | 79% | 2441 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,017 psi | 83% | 2392 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,779 psi | 69% | 2264 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 40,451 psi | 82% | 2395 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,987 psi | 81% | 2454 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 31,749 psi | 64% | 2297 fps | 96% |
| Somchem S365 | <<locked>> | 86% | 27,557 psi | 56% | 2270 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 41,278 psi | 84% | 2392 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,550 psi | 74% | 2372 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,405 psi | 76% | 2379 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,153 psi | 61% | 2241 fps | 96.9% |
| Vihtavuori N160 | <<locked>> | 90% | 37,217 psi | 75% | 2438 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 35,926 psi | 73% | 2365 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 36,419 psi | 74% | 2438 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 98% | 34,127 psi | 69% | 2461 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,879 psi | 63% | 2267 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 41,437 psi | 84% | 2516 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,000 psi | 77% | 2441 fps | 98% |
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 64 powders for 7 x 57 R loaded with the .284 | 150gr | Barnes TTSX BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,657 fps; across all powders the maximum-charge window runs from 1,617 fps to 2,657 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 64 of the 64 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon TrailBoss, ReloadSwiss RS 14 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, ReloadSwiss RS 62 rank at the top here: for 7 x 57 R with the .284 | 150gr | Barnes TTSX BT 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.