Load Specifications
Load data in caliber .375 Hoelderlin with .375 | 270gr | Alaska Bullet Works Kodiak PP SPBC bullet and 85 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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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 47,979 psi | 87% | 2428 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 49,313 psi | 89% | 2487 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 47,761 psi | 87% | 2480 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 47,123 psi | 86% | 2493 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 47,514 psi | 86% | 2516 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,612 psi | 77% | 2503 fps | 97% |
| ADI AR 2206H | <<locked>> | 88% | 46,847 psi | 85% | 2497 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 94% | 47,935 psi | 87% | 2493 fps | 98.4% |
| ADI Benchmark 8208 | <<locked>> | 88% | 49,342 psi | 90% | 2507 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 88% | 48,660 psi | 88% | 2493 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 47,297 psi | 86% | 2546 fps | 99.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 48,950 psi | 89% | 2631 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 49,603 psi | 90% | 2556 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 82% | 48,211 psi | 87% | 2434 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 47,601 psi | 86% | 2530 fps | 98.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,598 psi | 79% | 2516 fps | 97.2% |
| Alliant Reloder-17 | <<locked>> | 98% | 46,804 psi | 85% | 2605 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 49,197 psi | 89% | 2552 fps | 98.3% |
| Bofors RP3 | <<locked>> | 96% | 49,647 psi | 90% | 2569 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 48,805 psi | 89% | 2454 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 88% | 47,718 psi | 87% | 2533 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 86% | 49,139 psi | 89% | 2608 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 82% | 46,876 psi | 85% | 2467 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 47,572 psi | 86% | 2487 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 48,037 psi | 87% | 2526 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 88% | 47,239 psi | 86% | 2507 fps | 99.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,624 psi | 72% | 2408 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 48,544 psi | 88% | 2579 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,534 psi | 63% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 48,602 psi | 88% | 2513 fps | 99.3% |
| IMR 3031 | <<locked>> | 90% | 49,197 psi | 89% | 2546 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 47,282 psi | 86% | 2477 fps | 98.5% |
| IMR 4198 | <<locked>> | 82% | 48,762 psi | 88% | 2398 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 41,118 psi | 75% | 2457 fps | 96.6% |
| IMR 4895 | <<locked>> | 92% | 48,718 psi | 88% | 2559 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 88% | 49,342 psi | 90% | 2507 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 84% | 49,110 psi | 89% | 2493 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 90% | 48,544 psi | 88% | 2526 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 47,659 psi | 86% | 2441 fps | 98.8% |
| Lovex S062 | <<locked>> | 94% | 49,676 psi | 90% | 2523 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 48,689 psi | 88% | 2510 fps | 96.7% |
| Norma 201 | <<locked>> | 90% | 48,921 psi | 89% | 2500 fps | 99.7% |
| Norma 202 | <<locked>> | 90% | 49,008 psi | 89% | 2507 fps | 100% |
| Norma 203B | <<locked>> | 94% | 49,676 psi | 90% | 2562 fps | 99.2% |
| Norma URPᴾ | <<locked>> | 100% | 43,294 psi | 79% | 2503 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 94% | 49,719 psi | 90% | 2585 fps | 99.1% |
| Ramshot TAC | <<locked>> | 88% | 49,661 psi | 90% | 2513 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 88% | 48,733 psi | 88% | 2533 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 84% | 47,543 psi | 86% | 2461 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,708 psi | 63% | 1562 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 49,095 psi | 89% | 2493 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 48,907 psi | 89% | 2510 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 46,644 psi | 85% | 2579 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 46,702 psi | 85% | 2612 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 42,772 psi | 78% | 2523 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 86% | 47,210 psi | 86% | 2448 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 49,168 psi | 89% | 2493 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 98% | 49,255 psi | 89% | 2556 fps | 99.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 48,689 psi | 88% | 2510 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 90% | 48,544 psi | 88% | 2526 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 49,676 psi | 90% | 2523 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 48,950 psi | 89% | 2464 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 48,196 psi | 87% | 2569 fps | 98.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 48,892 psi | 89% | 2451 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 47,456 psi | 86% | 2484 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 48,298 psi | 88% | 2516 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 48,196 psi | 87% | 2415 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 47,282 psi | 86% | 2408 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 47,021 psi | 85% | 2490 fps | 99.7% |
| Somchem S335 | <<locked>> | 88% | 47,123 psi | 86% | 2411 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 46,992 psi | 85% | 2484 fps | 98.7% |
| Somchem S355 | <<locked>> | 96% | 47,369 psi | 86% | 2516 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,551 psi | 70% | 2457 fps | 98.8% |
| Vihtavuori N130 | <<locked>> | 84% | 48,240 psi | 88% | 2392 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 48,124 psi | 87% | 2405 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 47,877 psi | 87% | 2470 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 49,429 psi | 90% | 2487 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 48,385 psi | 88% | 2500 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,585 psi | 83% | 2503 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 88% | 49,777 psi | 90% | 2507 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 92% | 47,514 psi | 86% | 2484 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,483 psi | 81% | 2507 fps | 96.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 47,079 psi | 85% | 2497 fps | 99.1% |
| Winchester 748 | <<locked>> | 88% | 48,457 psi | 88% | 2546 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 47,500 psi | 86% | 2523 fps | 99.3% |
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% | 39,900 psi | 72% | 2306 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 43,120 psi | 78% | 2395 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 32,387 psi | 59% | 2224 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 38,305 psi | 70% | 2349 fps | 99.4% |
| Accurate 4064 | <<locked>> | 80% | 30,632 psi | 56% | 2208 fps | 98.8% |
| Accurate 4350 | <<locked>> | 96% | 37,144 psi | 67% | 2402 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 36,593 psi | 66% | 2310 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 35,288 psi | 64% | 2264 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,595 psi | 70% | 2323 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 80% | 37,275 psi | 68% | 2326 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 44,454 psi | 81% | 2500 fps | 98.9% |
| Alliant Power Pro 2000-MR | 61.2 gr | 84% | 37,405 psi | 68% | 2411 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 30,052 psi | 55% | 2192 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 45,295 psi | 82% | 2395 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 34,650 psi | 63% | 2290 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 96% | 38,624 psi | 70% | 2415 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 88% | 33,808 psi | 61% | 2343 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 37,753 psi | 69% | 2352 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 29,298 psi | 53% | 2188 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,625 psi | 74% | 2320 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,332 psi | 66% | 2333 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,929 psi | 72% | 2448 fps | 96.9% |
| Hodgdon H322 | <<locked>> | 80% | 43,845 psi | 80% | 2418 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 44,396 psi | 81% | 2438 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 39,494 psi | 72% | 2379 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 36,854 psi | 67% | 2320 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 32,938 psi | 60% | 2270 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,779 psi | 59% | 2280 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,672 psi | 47% | 1365 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,505 psi | 64% | 2277 fps | 96.7% |
| IMR 3031 | <<locked>> | 80% | 35,476 psi | 64% | 2323 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 34,795 psi | 63% | 2251 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 45,992 psi | 83% | 2362 fps | 100% |
| IMR 4831 | <<locked>> | 96% | 36,303 psi | 66% | 2362 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 33,344 psi | 61% | 2274 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 38,595 psi | 70% | 2323 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 42,757 psi | 78% | 2395 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 80% | 34,592 psi | 63% | 2290 fps | 98.8% |
| Lovex S060 | <<locked>> | 80% | 37,565 psi | 68% | 2260 fps | 96.8% |
| Lovex S062 | <<locked>> | 80% | 32,343 psi | 59% | 2211 fps | 96.7% |
| Lovex S065 | <<locked>> | 96% | 43,091 psi | 78% | 2418 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 35,926 psi | 65% | 2270 fps | 97.7% |
| Norma 202 | <<locked>> | 80% | 35,868 psi | 65% | 2287 fps | 99.4% |
| Norma 203B | <<locked>> | 80% | 32,010 psi | 58% | 2234 fps | 95% |
| Norma URP | <<locked>> | 96% | 38,218 psi | 69% | 2408 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 82% | 33,576 psi | 61% | 2287 fps | 95.2% |
| Ramshot TAC | <<locked>> | 84% | 43,729 psi | 79% | 2415 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,289 psi | 68% | 2333 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,669 psi | 76% | 2362 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,759 psi | 47% | 1394 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 43,192 psi | 78% | 2402 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 45,948 psi | 83% | 2464 fps | 95.2% |
| ReloadSwiss RS 52 | 58 gr | 82% | 35,781 psi | 65% | 2375 fps | 95.7% |
| ReloadSwiss RS 60 | 57.4 gr | 80% | 27,847 psi | 51% | 2192 fps | 95.6% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 40,074 psi | 73% | 2470 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 39,537 psi | 72% | 2320 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 34,156 psi | 62% | 2228 fps | 97.2% |
| Rottweil R 903 | <<locked>> | 84% | 31,386 psi | 57% | 2228 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 43,091 psi | 78% | 2418 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,592 psi | 63% | 2290 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 32,343 psi | 59% | 2211 fps | 96.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 45,643 psi | 83% | 2415 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 32,880 psi | 60% | 2277 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,977 psi | 83% | 2408 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 41,510 psi | 75% | 2385 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 35,027 psi | 64% | 2277 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,666 psi | 68% | 2244 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,777 psi | 56% | 2123 fps | 99.1% |
| Somchem S321 | <<locked>> | 80% | 41,075 psi | 75% | 2392 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 37,101 psi | 67% | 2247 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 35,868 psi | 65% | 2287 fps | 96.2% |
| Somchem S355 | <<locked>> | 82% | 30,589 psi | 56% | 2192 fps | 95% |
| Somchem S365 | <<locked>> | 90% | 28,326 psi | 51% | 2211 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 42,728 psi | 78% | 2313 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,695 psi | 68% | 2247 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,895 psi | 60% | 2224 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,895 psi | 62% | 2228 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 27,253 psi | 49% | 2096 fps | 95.2% |
| Vihtavuori N160 | <<locked>> | 94% | 37,710 psi | 68% | 2359 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 38,435 psi | 70% | 2320 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 80% | 32,387 psi | 59% | 2215 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 96% | 39,146 psi | 71% | 2411 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 31,879 psi | 58% | 2205 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 37,086 psi | 67% | 2352 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 34,069 psi | 62% | 2277 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 85 powders for .375 Hoelderlin loaded with the .375 | 270gr | Alaska Bullet Works Kodiak PP SPBC. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,631 fps; across all powders the maximum-charge window runs from 1,529 fps to 2,631 fps. Accurate 4350 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 63–90 %, 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for .375 Hoelderlin with the .375 | 270gr | 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.