Load Specifications
Load data in caliber .375 R Hoelderlin with .375 | 300gr | Alaska Bullet Works Kodiak PP SPBC bullet and 80 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 SNPE Vectan SP 11.
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% | 45,614 psi | 87% | 2257 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 45,890 psi | 88% | 2313 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 44,585 psi | 85% | 2323 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 45,847 psi | 88% | 2352 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 47,239 psi | 90% | 2444 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 84% | 44,657 psi | 86% | 2329 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 90% | 45,629 psi | 87% | 2333 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 46,934 psi | 90% | 2336 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 84% | 46,383 psi | 89% | 2320 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 46,267 psi | 89% | 2461 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 44,643 psi | 86% | 2349 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 88% | 45,411 psi | 87% | 2365 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,876 psi | 90% | 2451 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 94% | 44,498 psi | 85% | 2441 fps | 99.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,112 psi | 63% | 2221 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 46,702 psi | 89% | 2385 fps | 98.8% |
| Bofors RP3 | <<locked>> | 90% | 44,469 psi | 85% | 2359 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 46,151 psi | 88% | 2283 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 45,237 psi | 87% | 2359 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 46,398 psi | 89% | 2431 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 90% | 45,919 psi | 88% | 2365 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 84% | 45,020 psi | 86% | 2339 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,105 psi | 83% | 2349 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 46,122 psi | 88% | 2408 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,954 psi | 67% | 1447 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 46,006 psi | 88% | 2343 fps | 99.6% |
| IMR 3031 | <<locked>> | 86% | 47,166 psi | 90% | 2372 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 44,991 psi | 86% | 2313 fps | 98.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 45,223 psi | 87% | 2398 fps | 98.6% |
| IMR 4895 | <<locked>> | 88% | 46,514 psi | 89% | 2392 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 84% | 46,934 psi | 90% | 2336 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 86% | 46,209 psi | 89% | 2356 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 45,063 psi | 86% | 2274 fps | 99.2% |
| Lovex S062 | <<locked>> | 88% | 44,744 psi | 86% | 2320 fps | 99.8% |
| Lovex S065 | <<locked>> | 96% | 46,543 psi | 89% | 2349 fps | 97.4% |
| Lovex S070 | <<locked>> | 98% | 46,775 psi | 90% | 2375 fps | 96.4% |
| Norma 201 | <<locked>> | 86% | 46,543 psi | 89% | 2333 fps | 99.9% |
| Norma 202 | <<locked>> | 86% | 46,746 psi | 90% | 2336 fps | 100% |
| Norma 203B | <<locked>> | 88% | 44,643 psi | 86% | 2356 fps | 99.3% |
| Norma URP | <<locked>> | 98% | 44,237 psi | 85% | 2395 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 88% | 44,382 psi | 85% | 2372 fps | 99.1% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 46,427 psi | 89% | 2431 fps | 97% |
| Ramshot TAC | <<locked>> | 84% | 46,876 psi | 90% | 2343 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 46,108 psi | 88% | 2362 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,230 psi | 67% | 1483 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 46,470 psi | 89% | 2349 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 44,512 psi | 85% | 2411 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 44,367 psi | 85% | 2444 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,833 psi | 90% | 2464 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 44,976 psi | 86% | 2434 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 82% | 45,150 psi | 86% | 2280 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 47,007 psi | 90% | 2329 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 92% | 44,367 psi | 85% | 2349 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 46,543 psi | 89% | 2349 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 46,209 psi | 89% | 2356 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 44,744 psi | 86% | 2320 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 98% | 46,775 psi | 90% | 2375 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 45,832 psi | 88% | 2402 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 44,846 psi | 86% | 2320 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 45,774 psi | 88% | 2349 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 45,513 psi | 87% | 2244 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 45,034 psi | 86% | 2247 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 46,253 psi | 89% | 2306 fps | 95.9% |
| Somchem S335 | <<locked>> | 84% | 44,759 psi | 86% | 2247 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 44,498 psi | 85% | 2320 fps | 99.1% |
| Somchem S355 | <<locked>> | 92% | 45,266 psi | 87% | 2352 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,974 psi | 80% | 2395 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 84% | 45,643 psi | 87% | 2238 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 46,122 psi | 88% | 2306 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 46,949 psi | 90% | 2316 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 46,441 psi | 89% | 2339 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 46,528 psi | 89% | 2392 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 84% | 47,050 psi | 90% | 2333 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 88% | 45,339 psi | 87% | 2320 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 45,643 psi | 87% | 2398 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,143 psi | 67% | 2287 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 44,353 psi | 85% | 2336 fps | 99.5% |
| Winchester 748 | <<locked>> | 84% | 46,035 psi | 88% | 2372 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 44,875 psi | 86% | 2398 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 45,179 psi | 87% | 2356 fps | 99.6% |
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% | 42,859 psi | 82% | 2218 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,404 psi | 68% | 2152 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,669 psi | 80% | 2277 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,504 psi | 64% | 2146 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 33,417 psi | 64% | 2208 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 39,421 psi | 76% | 2241 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 80% | 33,620 psi | 64% | 2113 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,408 psi | 79% | 2251 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 40,669 psi | 78% | 2241 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 35,418 psi | 68% | 2251 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,692 psi | 63% | 2133 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,288 psi | 68% | 2182 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 90% | 34,867 psi | 67% | 2221 fps | 95.8% |
| Alliant Reloder-17 | 58.1 gr | 82% | 30,052 psi | 58% | 2139 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 29,530 psi | 57% | 2129 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,174 psi | 73% | 2241 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 32,039 psi | 61% | 2133 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,526 psi | 83% | 2244 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,479 psi | 76% | 2267 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,424 psi | 83% | 2382 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 82% | 35,273 psi | 68% | 2175 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 39,697 psi | 76% | 2251 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 29,776 psi | 57% | 2087 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,520 psi | 68% | 2221 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,918 psi | 50% | 1289 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,145 psi | 73% | 2208 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 38,827 psi | 74% | 2251 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,186 psi | 67% | 2139 fps | 96.9% |
| IMR 4831 | <<locked>> | 90% | 32,735 psi | 63% | 2172 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 36,100 psi | 69% | 2211 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 80% | 41,408 psi | 79% | 2251 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 37,768 psi | 72% | 2221 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 40,016 psi | 77% | 2188 fps | 98.4% |
| Lovex S062 | <<locked>> | 80% | 34,925 psi | 67% | 2146 fps | 98.5% |
| Lovex S065 | <<locked>> | 90% | 38,798 psi | 74% | 2221 fps | 95.5% |
| Lovex S070 | <<locked>> | 94% | 41,524 psi | 80% | 2287 fps | 95% |
| Norma 201 | <<locked>> | 80% | 38,624 psi | 74% | 2201 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 38,725 psi | 74% | 2211 fps | 100% |
| Norma 203B | <<locked>> | 80% | 34,708 psi | 66% | 2175 fps | 97.3% |
| Norma URP | <<locked>> | 90% | 34,461 psi | 66% | 2215 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 34,011 psi | 65% | 2182 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 96% | 40,915 psi | 78% | 2339 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 41,176 psi | 79% | 2251 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,379 psi | 77% | 2270 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,252 psi | 50% | 1322 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 40,959 psi | 78% | 2257 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,260 psi | 69% | 2260 fps | 97.2% |
| ReloadSwiss RS 60 | 56.7 gr | 80% | 30,066 psi | 58% | 2149 fps | 98.3% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 33,591 psi | 64% | 2221 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 39,349 psi | 75% | 2329 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 42,511 psi | 81% | 2241 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 36,753 psi | 70% | 2159 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 30,124 psi | 58% | 2083 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 38,798 psi | 74% | 2221 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,768 psi | 72% | 2221 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 34,925 psi | 67% | 2146 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 94% | 41,524 psi | 80% | 2287 fps | 95% |
| SNPE Vectan SP 11 | 55.8 gr | 80% | 31,198 psi | 60% | 2123 fps | 95.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,160 psi | 75% | 2224 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,797 psi | 72% | 2211 fps | 98% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,190 psi | 77% | 2165 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,069 psi | 63% | 2054 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 43,424 psi | 83% | 2264 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 39,755 psi | 76% | 2169 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,899 psi | 75% | 2224 fps | 98.1% |
| Somchem S355 | <<locked>> | 80% | 31,227 psi | 60% | 2090 fps | 96.6% |
| Somchem S365 | <<locked>> | 84% | 25,585 psi | 49% | 2031 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 40,350 psi | 77% | 2162 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,737 psi | 68% | 2149 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,608 psi | 70% | 2159 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 29,588 psi | 57% | 2041 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 33,982 psi | 65% | 2169 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 41,350 psi | 79% | 2247 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 35,215 psi | 67% | 2152 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 90% | 35,389 psi | 68% | 2218 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 96% | 30,980 psi | 59% | 2195 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 28,297 psi | 54% | 2014 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 40,292 psi | 77% | 2283 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 42,076 psi | 81% | 2352 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,014 psi | 71% | 2215 fps | 98.4% |
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 80 powders for .375 R Hoelderlin loaded with the .375 | 300gr | Alaska Bullet Works Kodiak PP SPBC. ReloadSwiss RS 62 delivers the highest muzzle velocity at 2,464 fps; across all powders the maximum-charge window runs from 1,447 fps to 2,464 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 63–90 %, leaving at least 10 % headroom. The 300.0 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-23 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, SNPE Vectan SP 11 rank at the top here: for .375 R Hoelderlin with the .375 | 300gr | Alaska Bullet Works Kodiak PP SPBC 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.