Load Specifications
Load data in caliber .375 Hoelderlin with .375 | 300gr | Winchester Silvertip bullet and 89 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 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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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>> | 82% | 49,429 psi | 90% | 2339 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 47,413 psi | 86% | 2362 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 48,921 psi | 89% | 2415 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 47,181 psi | 86% | 2352 fps | 96% |
| Accurate 4064 | <<locked>> | 88% | 47,587 psi | 86% | 2405 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 49,559 psi | 90% | 2513 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 48,356 psi | 88% | 2425 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 90% | 49,385 psi | 90% | 2428 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 47,790 psi | 87% | 2388 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 47,863 psi | 87% | 2365 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 47,166 psi | 86% | 2520 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 49,066 psi | 89% | 2448 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 49,603 psi | 90% | 2467 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 48,370 psi | 88% | 2520 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 94% | 48,907 psi | 89% | 2549 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,521 psi | 66% | 2336 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,364 psi | 73% | 2470 fps | 97.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 47,587 psi | 86% | 2434 fps | 99.3% |
| Bofors RP3 | <<locked>> | 90% | 49,139 psi | 89% | 2461 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 49,661 psi | 90% | 2431 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 49,501 psi | 90% | 2372 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 49,574 psi | 90% | 2457 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 47,079 psi | 85% | 2421 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 96% | 49,182 psi | 89% | 2510 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 84% | 48,849 psi | 89% | 2434 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,514 psi | 86% | 2454 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 47,529 psi | 86% | 2464 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 49,748 psi | 90% | 2539 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,375 psi | 64% | 1490 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 46,891 psi | 85% | 2392 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 48,428 psi | 88% | 2421 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 48,950 psi | 89% | 2415 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 86% | 48,994 psi | 89% | 2392 fps | 97.2% |
| IMR 4350 | <<locked>> | 98% | 49,676 psi | 90% | 2454 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 92% | 48,573 psi | 88% | 2415 fps | 97.1% |
| IMR 4831 | <<locked>> | 98% | 47,123 psi | 86% | 2464 fps | 99.3% |
| IMR 4895 | <<locked>> | 86% | 47,718 psi | 87% | 2444 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 82% | 47,790 psi | 87% | 2388 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 47,514 psi | 86% | 2405 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 48,428 psi | 88% | 2365 fps | 99.8% |
| Lovex S062 | <<locked>> | 88% | 48,617 psi | 88% | 2411 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 47,790 psi | 87% | 2411 fps | 98.3% |
| Lovex S070 | <<locked>> | 96% | 48,225 psi | 88% | 2438 fps | 97.4% |
| Norma 201 | <<locked>> | 84% | 47,485 psi | 86% | 2382 fps | 100% |
| Norma 202 | <<locked>> | 84% | 47,718 psi | 87% | 2382 fps | 100% |
| Norma 203B | <<locked>> | 88% | 48,820 psi | 89% | 2454 fps | 99.9% |
| Norma URP | <<locked>> | 98% | 49,081 psi | 89% | 2507 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 88% | 48,733 psi | 88% | 2474 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 98% | 47,950 psi | 87% | 2500 fps | 98% |
| Ramshot TAC | <<locked>> | 82% | 47,630 psi | 86% | 2398 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 46,978 psi | 85% | 2415 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,853 psi | 65% | 1526 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 47,514 psi | 86% | 2405 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 49,458 psi | 90% | 2520 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 48,892 psi | 89% | 2552 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 48,965 psi | 89% | 2533 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 49,342 psi | 90% | 2556 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 82% | 48,631 psi | 88% | 2365 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 47,848 psi | 87% | 2379 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 49,023 psi | 89% | 2451 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 49,661 psi | 90% | 2431 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 47,790 psi | 87% | 2411 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 47,514 psi | 86% | 2405 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 48,617 psi | 88% | 2411 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 48,225 psi | 88% | 2438 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 47,297 psi | 86% | 2461 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 48,921 psi | 89% | 2421 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 46,934 psi | 85% | 2405 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 49,139 psi | 89% | 2329 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 48,805 psi | 89% | 2329 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 47,776 psi | 87% | 2365 fps | 97% |
| Somchem S335 | <<locked>> | 84% | 48,486 psi | 88% | 2333 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 48,544 psi | 88% | 2415 fps | 99.8% |
| Somchem S355 | <<locked>> | 92% | 49,734 psi | 90% | 2454 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 46,644 psi | 85% | 2507 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 49,356 psi | 90% | 2320 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 47,442 psi | 86% | 2356 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 48,124 psi | 87% | 2365 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 47,703 psi | 87% | 2392 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 48,298 psi | 88% | 2457 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 82% | 47,776 psi | 87% | 2382 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 49,429 psi | 90% | 2408 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 47,282 psi | 86% | 2461 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,421 psi | 72% | 2402 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 48,588 psi | 88% | 2441 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 47,311 psi | 86% | 2425 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 49,400 psi | 90% | 2513 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 32,663 psi | 59% | 2333 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 86% | 49,574 psi | 90% | 2454 fps | 100% |
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% | 46,514 psi | 84% | 2300 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,131 psi | 71% | 2241 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,803 psi | 83% | 2372 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,135 psi | 80% | 2303 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 36,970 psi | 67% | 2238 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 30,603 psi | 56% | 2172 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 42,801 psi | 78% | 2336 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 36,332 psi | 66% | 2205 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,817 psi | 81% | 2339 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 44,672 psi | 81% | 2323 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 38,551 psi | 70% | 2362 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,853 psi | 65% | 2228 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,551 psi | 70% | 2280 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 31,618 psi | 57% | 2185 fps | 95.4% |
| Alliant Reloder-17 | 62 gr | 80% | 30,893 psi | 56% | 2198 fps | 97% |
| Alliant Reloder-23 | <<locked>> | 92% | 28,834 psi | 52% | 2152 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 35,186 psi | 64% | 2359 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,800 psi | 76% | 2339 fps | 98.5% |
| Bofors RP3 | <<locked>> | 80% | 35,317 psi | 64% | 2228 fps | 98.8% |
| Bofors RP7 | <<locked>> | 90% | 43,961 psi | 80% | 2339 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 46,688 psi | 85% | 2329 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,279 psi | 79% | 2362 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 36,303 psi | 66% | 2231 fps | 96.5% |
| Hodgdon H414 | <<locked>> | 90% | 40,567 psi | 74% | 2365 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 43,149 psi | 78% | 2346 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 27,195 psi | 49% | 2054 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,914 psi | 71% | 2320 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 92% | 43,207 psi | 78% | 2428 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,295 psi | 48% | 1329 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,423 psi | 75% | 2303 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 42,641 psi | 77% | 2336 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,145 psi | 69% | 2231 fps | 98.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 40,770 psi | 74% | 2251 fps | 95.2% |
| IMR 4350 | <<locked>> | 94% | 43,830 psi | 80% | 2362 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 40,495 psi | 73% | 2277 fps | 95% |
| IMR 4831 | <<locked>> | 86% | 31,995 psi | 58% | 2188 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 39,479 psi | 72% | 2306 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 80% | 44,817 psi | 81% | 2339 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 41,655 psi | 76% | 2316 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 43,076 psi | 78% | 2280 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 38,116 psi | 69% | 2241 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 35,346 psi | 64% | 2188 fps | 95.1% |
| Lovex S070 | <<locked>> | 90% | 40,089 psi | 73% | 2300 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 41,930 psi | 76% | 2293 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 42,105 psi | 76% | 2300 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,927 psi | 69% | 2270 fps | 98.6% |
| Norma URP | <<locked>> | 84% | 31,473 psi | 57% | 2178 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 37,202 psi | 68% | 2280 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 37,144 psi | 67% | 2306 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 44,614 psi | 81% | 2349 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,961 psi | 80% | 2365 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,643 psi | 48% | 1362 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,218 psi | 71% | 2264 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,132 psi | 73% | 2369 fps | 98.6% |
| ReloadSwiss RS 60 | 62 gr | 80% | 32,895 psi | 60% | 2257 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 32,663 psi | 59% | 2238 fps | 95.5% |
| ReloadSwiss RS 70 | 69.2 gr | 88% | 35,360 psi | 64% | 2290 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 45,847 psi | 83% | 2326 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,987 psi | 73% | 2254 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 33,228 psi | 60% | 2178 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 90% | 43,961 psi | 80% | 2339 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 84% | 35,346 psi | 64% | 2188 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,655 psi | 76% | 2316 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 38,116 psi | 69% | 2241 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 40,089 psi | 73% | 2300 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,185 psi | 62% | 2224 fps | 97.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,844 psi | 78% | 2326 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,220 psi | 75% | 2310 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,453 psi | 79% | 2251 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,013 psi | 65% | 2136 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 41,872 psi | 76% | 2274 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 42,975 psi | 78% | 2254 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 42,583 psi | 77% | 2323 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 34,229 psi | 62% | 2188 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 24,816 psi | 45% | 2041 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 43,714 psi | 79% | 2244 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,334 psi | 71% | 2234 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,813 psi | 72% | 2244 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,416 psi | 59% | 2129 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 84% | 32,793 psi | 60% | 2178 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 44,773 psi | 81% | 2336 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 38,392 psi | 70% | 2238 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 32,184 psi | 58% | 2182 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 90% | 28,761 psi | 52% | 2169 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,906 psi | 52% | 2067 fps | 96.2% |
| Winchester 748 | <<locked>> | 80% | 44,135 psi | 80% | 2375 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 40,756 psi | 74% | 2369 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 94% | 27,050 psi | 49% | 2162 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,567 psi | 74% | 2313 fps | 99.4% |
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 107 powders for .375 Hoelderlin loaded with the .375 | 300gr | Winchester Silvertip. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,556 fps; across all powders the maximum-charge window runs from 1,490 fps to 2,556 fps. Accurate 3100 gives the best case fill at 100 %, and 107 of the 107 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .375 Hoelderlin with the .375 | 300gr | Winchester Silvertip they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.