Load Specifications
Load data in caliber .375 R Hoelderlin with .375 | 270gr | Barnes Banded Solid RN bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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>> | 84% | 44,599 psi | 85% | 2375 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 45,542 psi | 87% | 2428 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 47,239 psi | 90% | 2470 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 46,456 psi | 89% | 2480 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 47,050 psi | 90% | 2503 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,192 psi | 81% | 2493 fps | 96.8% |
| ADI AR 2206H | <<locked>> | 88% | 46,412 psi | 89% | 2484 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 92% | 44,570 psi | 85% | 2434 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 46,093 psi | 88% | 2451 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 86% | 45,005 psi | 86% | 2441 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 46,934 psi | 90% | 2536 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 45,382 psi | 87% | 2566 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 46,108 psi | 88% | 2500 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 92% | 46,992 psi | 90% | 2516 fps | 98.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,076 psi | 83% | 2500 fps | 96.9% |
| Alliant Reloder-17 | <<locked>> | 98% | 46,122 psi | 88% | 2589 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 45,658 psi | 87% | 2490 fps | 97.6% |
| Bofors RP3 | <<locked>> | 94% | 45,992 psi | 88% | 2510 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 45,440 psi | 87% | 2398 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 88% | 47,065 psi | 90% | 2516 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 84% | 45,223 psi | 87% | 2539 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 82% | 46,340 psi | 89% | 2454 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 47,094 psi | 90% | 2477 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 44,643 psi | 86% | 2467 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 88% | 46,731 psi | 90% | 2497 fps | 99.1% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,175 psi | 75% | 2395 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 44,918 psi | 86% | 2516 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,345 psi | 66% | 1522 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 45,165 psi | 87% | 2454 fps | 98.8% |
| IMR 3031 | <<locked>> | 88% | 45,614 psi | 87% | 2490 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 46,891 psi | 90% | 2467 fps | 98.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,654 psi | 78% | 2444 fps | 96.4% |
| IMR 4895 | <<locked>> | 90% | 45,281 psi | 87% | 2500 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 86% | 46,093 psi | 88% | 2451 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 82% | 45,397 psi | 87% | 2434 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 88% | 44,730 psi | 86% | 2464 fps | 99.9% |
| Lovex S060 | <<locked>> | 88% | 47,239 psi | 90% | 2428 fps | 98.7% |
| Lovex S062 | <<locked>> | 92% | 46,137 psi | 88% | 2467 fps | 99.5% |
| Lovex S065 | <<locked>> | 98% | 45,353 psi | 87% | 2451 fps | 95.8% |
| Norma 201 | <<locked>> | 88% | 45,397 psi | 87% | 2441 fps | 99.3% |
| Norma 202 | <<locked>> | 88% | 45,687 psi | 88% | 2454 fps | 100% |
| Norma 203B | <<locked>> | 92% | 46,166 psi | 88% | 2507 fps | 98.7% |
| Norma URPᴾ | <<locked>> | 100% | 42,757 psi | 82% | 2487 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 92% | 46,151 psi | 88% | 2523 fps | 98.5% |
| Ramshot TAC | <<locked>> | 86% | 46,137 psi | 88% | 2451 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 86% | 45,165 psi | 87% | 2474 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 84% | 46,978 psi | 90% | 2448 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,722 psi | 67% | 1558 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 45,585 psi | 87% | 2438 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 46,238 psi | 89% | 2569 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 46,180 psi | 88% | 2598 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 42,293 psi | 81% | 2510 fps | 96.3% |
| Rottweil R 901 | <<locked>> | 86% | 46,905 psi | 90% | 2438 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 45,861 psi | 88% | 2438 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 96% | 45,629 psi | 87% | 2497 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 98% | 45,353 psi | 87% | 2451 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 88% | 44,730 psi | 86% | 2464 fps | 99.9% |
| Shooters World Precision | <<locked>> | 92% | 46,137 psi | 88% | 2467 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 44,686 psi | 86% | 2507 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 47,108 psi | 90% | 2474 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 44,918 psi | 86% | 2457 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 44,802 psi | 86% | 2359 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 46,876 psi | 90% | 2398 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 46,383 psi | 89% | 2477 fps | 99.6% |
| Somchem S335 | <<locked>> | 88% | 46,688 psi | 89% | 2402 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 46,644 psi | 89% | 2474 fps | 98.6% |
| Somchem S355 | <<locked>> | 96% | 46,717 psi | 89% | 2500 fps | 99.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,072 psi | 73% | 2441 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 82% | 44,889 psi | 86% | 2339 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 44,773 psi | 86% | 2356 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 44,672 psi | 86% | 2425 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 45,905 psi | 88% | 2434 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 44,889 psi | 86% | 2441 fps | 99.6% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,266 psi | 87% | 2493 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 86% | 46,195 psi | 88% | 2448 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 92% | 47,152 psi | 90% | 2474 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 43,990 psi | 84% | 2493 fps | 96.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,499 psi | 89% | 2484 fps | 99% |
| Winchester 748 | <<locked>> | 86% | 44,933 psi | 86% | 2487 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 90% | 47,108 psi | 90% | 2510 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% | 39,378 psi | 75% | 2293 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 42,656 psi | 82% | 2382 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 31,879 psi | 61% | 2211 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 37,826 psi | 72% | 2336 fps | 99.3% |
| Accurate 4064 | <<locked>> | 80% | 30,168 psi | 58% | 2195 fps | 98.6% |
| Accurate 4350 | <<locked>> | 96% | 36,550 psi | 70% | 2388 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 36,172 psi | 69% | 2297 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 84% | 34,896 psi | 67% | 2251 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,174 psi | 73% | 2310 fps | 98.1% |
| Alliant AR-Comp | <<locked>> | 80% | 36,709 psi | 70% | 2316 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,888 psi | 84% | 2484 fps | 98.8% |
| Alliant Power Pro 2000-MR | 60.6 gr | 84% | 37,086 psi | 71% | 2398 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,660 psi | 57% | 2178 fps | 95.1% |
| Alliant Reloder-15 | <<locked>> | 82% | 34,403 psi | 66% | 2280 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 96% | 38,159 psi | 73% | 2398 fps | 95.3% |
| Alliant Reloder-17 | 62.5 gr | 88% | 33,373 psi | 64% | 2326 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 37,405 psi | 72% | 2339 fps | 95.4% |
| Bofors RP3 | <<locked>> | 82% | 30,922 psi | 59% | 2221 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,379 psi | 77% | 2310 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,911 psi | 69% | 2320 fps | 98.2% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,523 psi | 76% | 2434 fps | 96.7% |
| Hodgdon H322 | <<locked>> | 80% | 43,337 psi | 83% | 2408 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,961 psi | 84% | 2428 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 39,131 psi | 75% | 2369 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 36,390 psi | 70% | 2306 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 32,677 psi | 63% | 2257 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,445 psi | 62% | 2270 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,599 psi | 49% | 1358 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,099 psi | 67% | 2264 fps | 96.5% |
| IMR 3031 | <<locked>> | 80% | 35,157 psi | 67% | 2313 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 34,389 psi | 66% | 2234 fps | 95.2% |
| IMR 4831 | <<locked>> | 98% | 38,189 psi | 73% | 2398 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 32,895 psi | 63% | 2257 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 38,174 psi | 73% | 2310 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 80% | 42,293 psi | 81% | 2385 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 34,316 psi | 66% | 2280 fps | 98.7% |
| Lovex S060 | <<locked>> | 80% | 37,115 psi | 71% | 2247 fps | 96.6% |
| Lovex S062 | <<locked>> | 80% | 31,923 psi | 61% | 2198 fps | 96.5% |
| Lovex S065 | <<locked>> | 96% | 42,554 psi | 82% | 2402 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 35,491 psi | 68% | 2260 fps | 97.5% |
| Norma 202 | <<locked>> | 80% | 35,404 psi | 68% | 2274 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 33,750 psi | 65% | 2270 fps | 95.6% |
| Norma URP | <<locked>> | 96% | 37,739 psi | 72% | 2392 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 84% | 35,404 psi | 68% | 2323 fps | 95.8% |
| Ramshot TAC | <<locked>> | 84% | 43,366 psi | 83% | 2405 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,941 psi | 71% | 2323 fps | 96.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,452 psi | 79% | 2352 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,686 psi | 49% | 1391 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,888 psi | 82% | 2392 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 35,346 psi | 68% | 2359 fps | 95.4% |
| ReloadSwiss RS 60 | 56.9 gr | 80% | 27,688 psi | 53% | 2182 fps | 95.4% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 39,595 psi | 76% | 2457 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 39,233 psi | 75% | 2310 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 33,866 psi | 65% | 2218 fps | 97% |
| Rottweil R 903 | <<locked>> | 84% | 31,009 psi | 59% | 2218 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 42,554 psi | 82% | 2402 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,316 psi | 66% | 2280 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 31,923 psi | 61% | 2198 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 34,664 psi | 66% | 2313 fps | 95.6% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 41,162 psi | 79% | 2375 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,780 psi | 67% | 2267 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,347 psi | 72% | 2234 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,516 psi | 58% | 2113 fps | 99% |
| Somchem S321 | <<locked>> | 80% | 40,640 psi | 78% | 2382 fps | 98.9% |
| Somchem S335 | <<locked>> | 80% | 36,651 psi | 70% | 2238 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 35,491 psi | 68% | 2277 fps | 96% |
| Somchem S355 | <<locked>> | 84% | 32,271 psi | 62% | 2228 fps | 95.6% |
| Somchem S365 | <<locked>> | 92% | 29,747 psi | 57% | 2247 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 42,409 psi | 81% | 2303 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,391 psi | 72% | 2238 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,547 psi | 62% | 2215 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,431 psi | 64% | 2215 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 80% | 26,905 psi | 52% | 2083 fps | 95% |
| Vihtavuori N160 | <<locked>> | 96% | 39,697 psi | 76% | 2395 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 38,000 psi | 73% | 2306 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 80% | 32,140 psi | 62% | 2205 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 96% | 38,827 psi | 74% | 2402 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 33,620 psi | 64% | 2241 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 36,637 psi | 70% | 2339 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,663 psi | 64% | 2264 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 80 powders for .375 R Hoelderlin loaded with the .375 | 270gr | Barnes Banded Solid RN. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,598 fps; across all powders the maximum-charge window runs from 1,522 fps to 2,598 fps. Accurate 4350 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (360 MPa), the top charges use 66–90 %, 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, Hodgdon Hybrid 100V 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 Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .375 R Hoelderlin with the .375 | 270gr | Barnes Banded Solid RN 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.