Load Specifications
Load data in caliber .375 R Hoelderlin with .375 | 275gr | SUS-TAC HP bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 52, Alliant Power Pro 2000-MR and ReloadSwiss RS 60.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 47,152 psi | 90% | 2356 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 45,324 psi | 87% | 2369 fps | 99.9% |
| Accurate 2495 | <<locked>> | 94% | 46,166 psi | 88% | 2402 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 45,861 psi | 88% | 2415 fps | 99.9% |
| Accurate 4064 | <<locked>> | 96% | 45,876 psi | 88% | 2431 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 46,079 psi | 88% | 2418 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 96% | 46,978 psi | 90% | 2411 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 88% | 45,832 psi | 88% | 2385 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 90% | 47,224 psi | 90% | 2421 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 46,514 psi | 89% | 2467 fps | 98.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 45,034 psi | 86% | 2490 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 45,556 psi | 87% | 2431 fps | 98.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 44,730 psi | 86% | 2326 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 46,441 psi | 89% | 2444 fps | 97.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 45,745 psi | 88% | 2513 fps | 98.6% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 46,775 psi | 90% | 2310 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 45,266 psi | 87% | 2421 fps | 97% |
| Bofors RP3 | <<locked>> | 96% | 45,078 psi | 86% | 2438 fps | 98.9% |
| Hodgdon Benchmark | <<locked>> | 86% | 45,455 psi | 87% | 2336 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 90% | 46,644 psi | 89% | 2451 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 86% | 45,107 psi | 86% | 2474 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 84% | 46,079 psi | 88% | 2392 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 46,949 psi | 90% | 2415 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 46,920 psi | 90% | 2441 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 90% | 46,354 psi | 89% | 2428 fps | 98.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 36,347 psi | 70% | 2277 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 44,396 psi | 85% | 2448 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,953 psi | 65% | 1463 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 44,860 psi | 86% | 2385 fps | 98.4% |
| IMR 3031 | <<locked>> | 90% | 44,831 psi | 86% | 2425 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 46,470 psi | 89% | 2398 fps | 97.9% |
| IMR 4198 | <<locked>> | 82% | 45,701 psi | 88% | 2297 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 44,730 psi | 86% | 2431 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 88% | 45,832 psi | 88% | 2385 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 84% | 45,107 psi | 86% | 2372 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 92% | 47,152 psi | 90% | 2444 fps | 99.9% |
| Lovex S060 | <<locked>> | 90% | 47,224 psi | 90% | 2362 fps | 98.4% |
| Lovex S062 | <<locked>> | 94% | 45,600 psi | 87% | 2398 fps | 99.2% |
| Norma 201 | <<locked>> | 90% | 45,121 psi | 86% | 2375 fps | 99.1% |
| Norma 202 | <<locked>> | 90% | 45,092 psi | 86% | 2385 fps | 100% |
| Norma 203B | <<locked>> | 94% | 45,614 psi | 87% | 2434 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 94% | 45,600 psi | 87% | 2451 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 88% | 44,715 psi | 86% | 2405 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 86% | 46,905 psi | 90% | 2382 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,127 psi | 65% | 1499 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 45,542 psi | 87% | 2375 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 45,440 psi | 87% | 2490 fps | 97.7% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 45,832 psi | 88% | 2526 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 88% | 46,369 psi | 89% | 2369 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 45,411 psi | 87% | 2372 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 98% | 44,773 psi | 86% | 2425 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 92% | 47,152 psi | 90% | 2444 fps | 99.9% |
| Shooters World Precision | <<locked>> | 94% | 45,600 psi | 87% | 2398 fps | 99.2% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 45,397 psi | 87% | 2343 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 47,050 psi | 90% | 2480 fps | 98.3% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 45,397 psi | 87% | 2339 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 46,760 psi | 90% | 2405 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 44,396 psi | 85% | 2388 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 44,730 psi | 86% | 2300 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 46,543 psi | 89% | 2336 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 46,238 psi | 89% | 2415 fps | 99.3% |
| Somchem S335 | <<locked>> | 90% | 46,441 psi | 89% | 2339 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 46,253 psi | 89% | 2405 fps | 98.1% |
| Somchem S355 | <<locked>> | 98% | 46,108 psi | 88% | 2431 fps | 98.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 35,099 psi | 67% | 2316 fps | 97.3% |
| Vihtavuori N130 | <<locked>> | 84% | 44,976 psi | 86% | 2283 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 44,570 psi | 85% | 2297 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 46,630 psi | 89% | 2395 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 45,339 psi | 87% | 2369 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 44,251 psi | 85% | 2372 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 88% | 46,021 psi | 88% | 2382 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 94% | 46,688 psi | 89% | 2408 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 43,352 psi | 83% | 2362 fps | 97.9% |
| Winchester 748 | <<locked>> | 88% | 44,338 psi | 85% | 2418 fps | 99.5% |
| Winchester StaBALL Match | <<locked>> | 92% | 46,659 psi | 89% | 2444 fps | 98.8% |
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% | 36,753 psi | 70% | 2195 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 39,653 psi | 76% | 2277 fps | 99.5% |
| Accurate 2495 | <<locked>> | 80% | 29,225 psi | 56% | 2110 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 34,983 psi | 67% | 2231 fps | 98.6% |
| Accurate 4064 | <<locked>> | 80% | 27,688 psi | 53% | 2090 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 80% | 33,765 psi | 65% | 2188 fps | 95% |
| ADI AR 2208 | <<locked>> | 88% | 36,956 psi | 71% | 2238 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 35,694 psi | 68% | 2205 fps | 97.1% |
| Alliant AR-Comp | <<locked>> | 80% | 34,011 psi | 65% | 2218 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 40,770 psi | 78% | 2369 fps | 97.9% |
| Alliant Power Pro 2000-MR | 58.2 gr | 88% | 39,407 psi | 75% | 2382 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 31,111 psi | 60% | 2162 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 42,018 psi | 80% | 2287 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 36,085 psi | 69% | 2260 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 35,404 psi | 68% | 2310 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 43,990 psi | 84% | 2270 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 39,668 psi | 76% | 2323 fps | 95.6% |
| Bofors RP3 | <<locked>> | 84% | 30,356 psi | 58% | 2159 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,898 psi | 73% | 2208 fps | 98.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 33,156 psi | 64% | 2211 fps | 97.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 36,724 psi | 70% | 2316 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 40,393 psi | 77% | 2303 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 40,930 psi | 78% | 2320 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 92% | 41,234 psi | 79% | 2349 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 33,910 psi | 65% | 2198 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 34,229 psi | 66% | 2231 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 32,184 psi | 62% | 2205 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,135 psi | 48% | 1306 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 32,764 psi | 63% | 2159 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 32,387 psi | 62% | 2208 fps | 99.7% |
| IMR 4064 | <<locked>> | 86% | 36,419 psi | 70% | 2221 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 43,120 psi | 83% | 2260 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 34,679 psi | 66% | 2244 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 35,694 psi | 68% | 2205 fps | 97.1% |
| Lovex D073.5 | <<locked>> | 80% | 39,320 psi | 75% | 2277 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 31,488 psi | 60% | 2169 fps | 97.7% |
| Lovex S060 | <<locked>> | 80% | 35,085 psi | 67% | 2149 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 29,791 psi | 57% | 2096 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 33,127 psi | 63% | 2152 fps | 96.4% |
| Norma 202 | <<locked>> | 80% | 32,996 psi | 63% | 2172 fps | 98.6% |
| Norma 203B | <<locked>> | 84% | 33,286 psi | 64% | 2208 fps | 95% |
| Ramshot Big Game | <<locked>> | 86% | 35,157 psi | 67% | 2257 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 34,301 psi | 66% | 2211 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 38,885 psi | 74% | 2247 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,411 psi | 49% | 1342 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 40,132 psi | 77% | 2287 fps | 99.2% |
| ReloadSwiss RS 52 | 55.2 gr | 86% | 37,347 psi | 72% | 2343 fps | 95.6% |
| ReloadSwiss RS 60 | 54.7 gr | 84% | 29,211 psi | 56% | 2165 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 36,680 psi | 70% | 2205 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 80% | 31,502 psi | 60% | 2113 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 88% | 32,430 psi | 62% | 2198 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,488 psi | 60% | 2169 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 29,791 psi | 57% | 2096 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 42,264 psi | 81% | 2293 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 36,405 psi | 70% | 2290 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 42,612 psi | 82% | 2297 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 43,743 psi | 84% | 2359 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 34,490 psi | 66% | 2205 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,998 psi | 67% | 2133 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,398 psi | 54% | 2018 fps | 98.2% |
| Somchem S321 | <<locked>> | 80% | 37,884 psi | 73% | 2274 fps | 98% |
| Somchem S335 | <<locked>> | 80% | 34,330 psi | 66% | 2139 fps | 99.3% |
| Somchem S341 | <<locked>> | 82% | 35,244 psi | 68% | 2215 fps | 95.4% |
| Somchem S355 | <<locked>> | 86% | 31,821 psi | 61% | 2165 fps | 95% |
| Somchem S365 | <<locked>> | 96% | 31,009 psi | 59% | 2221 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 39,769 psi | 76% | 2205 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,925 psi | 67% | 2139 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 30,008 psi | 57% | 2113 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 31,183 psi | 60% | 2116 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 84% | 28,311 psi | 54% | 2067 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 35,331 psi | 68% | 2198 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 80% | 29,834 psi | 57% | 2103 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 35,592 psi | 68% | 2221 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 34,026 psi | 65% | 2231 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 82% | 33,460 psi | 64% | 2205 fps | 95.7% |
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 75 powders for .375 R Hoelderlin loaded with the .375 | 275gr | SUS-TAC HP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,526 fps; across all powders the maximum-charge window runs from 1,463 fps to 2,526 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (360 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 275.0 gr projectile in 0.375" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, Hodgdon Hybrid 100V, Hodgdon TrailBoss 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 52, Alliant Power Pro 2000-MR, ReloadSwiss RS 60 rank at the top here: for .375 R Hoelderlin with the .375 | 275gr | SUS-TAC HP 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.