Load Specifications
Load data in caliber .375 Hoelderlin with .375 | 270gr | Brenneke TOG bullet and 86 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 Power Pro 2000-MR and ReloadSwiss RS 52.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 47,601 psi | 86% | 2421 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 48,921 psi | 89% | 2480 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 47,355 psi | 86% | 2474 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 46,760 psi | 85% | 2487 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 47,152 psi | 86% | 2507 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,308 psi | 77% | 2497 fps | 96.8% |
| ADI AR 2206H | <<locked>> | 90% | 49,603 psi | 90% | 2536 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 94% | 47,630 psi | 86% | 2487 fps | 98.3% |
| ADI Benchmark 8208 | <<locked>> | 88% | 49,240 psi | 89% | 2503 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 88% | 48,225 psi | 88% | 2487 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 47,152 psi | 86% | 2543 fps | 99.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 48,704 psi | 88% | 2625 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 49,284 psi | 89% | 2549 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 82% | 47,747 psi | 87% | 2428 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 47,268 psi | 86% | 2523 fps | 98.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,149 psi | 78% | 2503 fps | 97% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 49,501 psi | 90% | 2644 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 49,864 psi | 90% | 2411 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 48,936 psi | 89% | 2546 fps | 98.2% |
| Bofors RP3 | <<locked>> | 96% | 49,269 psi | 89% | 2562 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 86% | 48,501 psi | 88% | 2448 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 88% | 47,413 psi | 86% | 2523 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 86% | 48,820 psi | 89% | 2602 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 84% | 49,690 psi | 90% | 2503 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 47,239 psi | 86% | 2480 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 47,761 psi | 87% | 2520 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 88% | 47,108 psi | 85% | 2503 fps | 99.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,407 psi | 72% | 2402 fps | 97.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 48,225 psi | 88% | 2572 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,389 psi | 62% | 1522 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 48,269 psi | 88% | 2507 fps | 99.2% |
| IMR 3031 | <<locked>> | 90% | 49,008 psi | 89% | 2543 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 46,949 psi | 85% | 2470 fps | 98.4% |
| IMR 4198 | <<locked>> | 82% | 48,515 psi | 88% | 2395 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,901 psi | 74% | 2451 fps | 96.5% |
| IMR 4895 | <<locked>> | 92% | 48,457 psi | 88% | 2552 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 88% | 49,240 psi | 89% | 2503 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 84% | 48,747 psi | 88% | 2487 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 90% | 48,167 psi | 87% | 2520 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 47,355 psi | 86% | 2431 fps | 98.8% |
| Lovex S062 | <<locked>> | 94% | 49,342 psi | 90% | 2516 fps | 99.7% |
| Lovex S065ᴾ | <<locked>> | 100% | 48,225 psi | 88% | 2500 fps | 96.5% |
| Norma 201 | <<locked>> | 90% | 48,544 psi | 88% | 2493 fps | 99.7% |
| Norma 202 | <<locked>> | 90% | 48,646 psi | 88% | 2500 fps | 100% |
| Norma 203B | <<locked>> | 94% | 49,356 psi | 90% | 2556 fps | 99.1% |
| Norma URPᴾ | <<locked>> | 100% | 43,033 psi | 78% | 2497 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 94% | 49,487 psi | 90% | 2579 fps | 99% |
| Ramshot TAC | <<locked>> | 88% | 49,400 psi | 90% | 2503 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 88% | 48,428 psi | 88% | 2526 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 47,239 psi | 86% | 2454 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,766 psi | 63% | 1562 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 48,776 psi | 89% | 2487 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 48,675 psi | 88% | 2503 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 49,559 psi | 90% | 2621 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 49,559 psi | 90% | 2654 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 42,569 psi | 77% | 2516 fps | 96.4% |
| Rottweil R 901 | <<locked>> | 86% | 47,050 psi | 85% | 2444 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 48,805 psi | 89% | 2487 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 98% | 48,965 psi | 89% | 2549 fps | 99.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 48,225 psi | 88% | 2500 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 90% | 48,167 psi | 87% | 2520 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 49,342 psi | 90% | 2516 fps | 99.7% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 48,602 psi | 88% | 2454 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 47,703 psi | 87% | 2559 fps | 98.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 48,501 psi | 88% | 2441 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 47,166 psi | 86% | 2480 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 47,993 psi | 87% | 2510 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 47,834 psi | 87% | 2405 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 47,166 psi | 86% | 2405 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 49,792 psi | 90% | 2530 fps | 99.8% |
| Somchem S335 | <<locked>> | 90% | 49,835 psi | 90% | 2448 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 46,717 psi | 85% | 2477 fps | 98.6% |
| Somchem S355 | <<locked>> | 96% | 47,065 psi | 85% | 2507 fps | 99.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,130 psi | 69% | 2444 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 84% | 47,819 psi | 87% | 2382 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 47,761 psi | 87% | 2398 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 47,703 psi | 87% | 2467 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 49,095 psi | 89% | 2480 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 48,124 psi | 87% | 2493 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,339 psi | 82% | 2493 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 88% | 49,414 psi | 90% | 2497 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 92% | 47,224 psi | 86% | 2477 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,251 psi | 80% | 2500 fps | 96.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,746 psi | 85% | 2490 fps | 99.1% |
| Winchester 748 | <<locked>> | 88% | 48,124 psi | 87% | 2539 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 47,181 psi | 86% | 2513 fps | 99.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 39,537 psi | 72% | 2297 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 42,757 psi | 78% | 2388 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 32,024 psi | 58% | 2218 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 38,145 psi | 69% | 2346 fps | 99.4% |
| Accurate 4064 | <<locked>> | 80% | 30,298 psi | 55% | 2198 fps | 98.7% |
| Accurate 4350 | <<locked>> | 96% | 36,811 psi | 67% | 2395 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 36,303 psi | 66% | 2300 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 84% | 35,143 psi | 64% | 2260 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,276 psi | 69% | 2316 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 80% | 36,869 psi | 67% | 2320 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 44,034 psi | 80% | 2490 fps | 98.8% |
| Alliant Power Pro 2000-MR | 60.9 gr | 84% | 37,318 psi | 68% | 2405 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,776 psi | 54% | 2182 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,889 psi | 81% | 2385 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 34,505 psi | 63% | 2283 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 96% | 38,392 psi | 70% | 2408 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 88% | 33,591 psi | 61% | 2333 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 46,876 psi | 85% | 2372 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 37,507 psi | 68% | 2343 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 28,979 psi | 53% | 2175 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,495 psi | 73% | 2316 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,187 psi | 66% | 2329 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,668 psi | 72% | 2441 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 80% | 43,700 psi | 79% | 2415 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 44,048 psi | 80% | 2431 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 39,392 psi | 71% | 2375 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 36,506 psi | 66% | 2310 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 32,764 psi | 59% | 2260 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,532 psi | 59% | 2274 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,483 psi | 46% | 1358 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,201 psi | 64% | 2270 fps | 96.6% |
| IMR 3031 | <<locked>> | 80% | 35,302 psi | 64% | 2320 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 34,490 psi | 63% | 2241 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 45,788 psi | 83% | 2356 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 38,261 psi | 69% | 2402 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 32,996 psi | 60% | 2264 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 38,276 psi | 69% | 2316 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 42,612 psi | 77% | 2392 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 34,447 psi | 63% | 2283 fps | 98.8% |
| Lovex S060 | <<locked>> | 80% | 37,231 psi | 68% | 2251 fps | 96.7% |
| Lovex S062 | <<locked>> | 80% | 32,039 psi | 58% | 2201 fps | 96.6% |
| Lovex S065 | <<locked>> | 96% | 42,830 psi | 78% | 2408 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 35,607 psi | 65% | 2264 fps | 97.6% |
| Norma 202 | <<locked>> | 80% | 35,520 psi | 64% | 2277 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 33,895 psi | 62% | 2274 fps | 95.7% |
| Norma URP | <<locked>> | 96% | 37,942 psi | 69% | 2402 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 82% | 33,344 psi | 61% | 2277 fps | 95% |
| Ramshot TAC | <<locked>> | 84% | 43,439 psi | 79% | 2408 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,014 psi | 67% | 2326 fps | 96.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,539 psi | 75% | 2359 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,759 psi | 47% | 1394 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,033 psi | 78% | 2395 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 45,658 psi | 83% | 2454 fps | 95.1% |
| ReloadSwiss RS 52 | 57.6 gr | 82% | 35,462 psi | 64% | 2365 fps | 95.5% |
| ReloadSwiss RS 60 | 57.1 gr | 80% | 27,746 psi | 50% | 2188 fps | 95.5% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 39,682 psi | 72% | 2461 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 39,378 psi | 71% | 2313 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 33,982 psi | 62% | 2221 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 84% | 31,096 psi | 56% | 2221 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 42,830 psi | 78% | 2408 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,447 psi | 63% | 2283 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 32,039 psi | 58% | 2201 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,498 psi | 83% | 2408 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 34,737 psi | 63% | 2316 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,730 psi | 83% | 2402 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 41,205 psi | 75% | 2379 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,867 psi | 63% | 2270 fps | 95.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,492 psi | 68% | 2238 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,647 psi | 56% | 2119 fps | 99.1% |
| Somchem S321 | <<locked>> | 80% | 40,930 psi | 74% | 2388 fps | 98.9% |
| Somchem S335 | <<locked>> | 80% | 36,796 psi | 67% | 2241 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 35,737 psi | 65% | 2283 fps | 96.1% |
| Somchem S355 | <<locked>> | 84% | 32,372 psi | 59% | 2231 fps | 95.7% |
| Somchem S365 | <<locked>> | 92% | 29,791 psi | 54% | 2251 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 42,554 psi | 77% | 2306 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,536 psi | 68% | 2241 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,692 psi | 59% | 2221 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,591 psi | 61% | 2221 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 80% | 26,992 psi | 49% | 2087 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 96% | 39,972 psi | 73% | 2402 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 38,116 psi | 69% | 2310 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 80% | 32,285 psi | 59% | 2211 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 96% | 38,899 psi | 71% | 2405 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 33,794 psi | 61% | 2247 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 36,912 psi | 67% | 2346 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,924 psi | 62% | 2274 fps | 96.4% |
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 86 powders for .375 Hoelderlin loaded with the .375 | 270gr | Brenneke TOG. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,654 fps; across all powders the maximum-charge window runs from 1,522 fps to 2,654 fps. Accurate 4350 gives the best case fill at 100 %, and 86 of the 86 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 270.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .375 Hoelderlin with the .375 | 270gr | Brenneke TOG 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.