Load Specifications
Load data in caliber .375 Swiss P with .375 | 340gr | Rhino Solid bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and Accurate MAGPRO.
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 3100 | <<locked>> | 96% | 52,547 psi | 86% | 2510 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,505 psi | 89% | 2536 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 53,679 psi | 88% | 2644 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 96% | 54,418 psi | 89% | 2648 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 82% | 53,200 psi | 87% | 2454 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 51,706 psi | 85% | 2543 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 52,721 psi | 87% | 2592 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,019 psi | 72% | 2448 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,943 psi | 64% | 2418 fps | 99% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 51,996 psi | 85% | 2539 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,346 psi | 89% | 2477 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 51,909 psi | 85% | 2539 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,692 psi | 87% | 2552 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,679 psi | 90% | 2582 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,286 psi | 86% | 2592 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,185 psi | 87% | 2562 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,907 psi | 80% | 2569 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,040 psi | 87% | 2648 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 51,822 psi | 85% | 2510 fps | 95.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,694 psi | 90% | 2625 fps | 99.7% |
| Bofors RP3 | <<locked>> | 82% | 55,085 psi | 90% | 2490 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,991 psi | 74% | 2513 fps | 98.2% |
| Bofors RP5 | <<locked>> | 96% | 52,286 psi | 86% | 2592 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 54,331 psi | 89% | 2493 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,385 psi | 79% | 2526 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 86% | 52,794 psi | 87% | 2539 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 52,388 psi | 86% | 2500 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 94% | 52,982 psi | 87% | 2539 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,880 psi | 85% | 2526 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 52,199 psi | 86% | 2470 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,051 psi | 79% | 2628 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 52,678 psi | 86% | 2575 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,811 psi | 60% | 1535 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 52,170 psi | 86% | 2484 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,475 psi | 86% | 2467 fps | 99.9% |
| IMR 4831 | <<locked>> | 90% | 54,955 psi | 90% | 2530 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,404 psi | 89% | 2526 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 98% | 54,056 psi | 89% | 2625 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 52,837 psi | 87% | 2467 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,143 psi | 89% | 2510 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,053 psi | 82% | 2477 fps | 100% |
| Norma 204 | <<locked>> | 88% | 52,576 psi | 86% | 2530 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 34,490 psi | 57% | 2349 fps | 97.3% |
| Norma MRP | <<locked>> | 94% | 51,808 psi | 85% | 2612 fps | 100% |
| Norma URP | <<locked>> | 88% | 53,185 psi | 87% | 2523 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,447 psi | 89% | 2641 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 88% | 51,924 psi | 85% | 2533 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,301 psi | 86% | 2582 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,695 psi | 62% | 1575 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,911 psi | 90% | 2500 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 52,214 psi | 86% | 2539 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,375 psi | 89% | 2562 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,431 psi | 86% | 2585 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,037 psi | 79% | 2621 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 42,960 psi | 71% | 2513 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 82% | 51,953 psi | 85% | 2448 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,258 psi | 87% | 2513 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 94% | 54,012 psi | 89% | 2569 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 86% | 54,331 psi | 89% | 2493 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,837 psi | 87% | 2467 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,143 psi | 89% | 2510 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,142 psi | 87% | 2500 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,359 psi | 86% | 2333 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 52,112 psi | 86% | 2425 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,563 psi | 88% | 2566 fps | 99.7% |
| Somchem S355 | <<locked>> | 82% | 51,793 psi | 85% | 2441 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,549 psi | 90% | 2507 fps | 98.5% |
| Somchem S365 | <<locked>> | 90% | 52,997 psi | 87% | 2526 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,607 psi | 90% | 2546 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 52,895 psi | 87% | 2418 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,042 psi | 90% | 2513 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,809 psi | 88% | 2526 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 54,259 psi | 89% | 2523 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,243 psi | 86% | 2543 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 51,967 psi | 85% | 2608 fps | 98.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,256 psi | 84% | 2585 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 44,599 psi | 73% | 2523 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,404 psi | 89% | 2484 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,968 psi | 87% | 2543 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,924 psi | 87% | 2684 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,404 psi | 89% | 2543 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 3100 | <<locked>> | 80% | 30,850 psi | 51% | 2133 fps | 97.3% |
| Accurate 4350 | <<locked>> | 80% | 41,640 psi | 68% | 2349 fps | 100% |
| Accurate High Country | <<locked>> | 82% | 35,578 psi | 58% | 2326 fps | 95.1% |
| Accurate MAGPRO | 90.1 gr | 88% | 41,307 psi | 68% | 2431 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 50,169 psi | 82% | 2415 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 35,085 psi | 58% | 2241 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 86% | 38,000 psi | 62% | 2333 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 96% | 38,667 psi | 63% | 2343 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 92% | 30,342 psi | 50% | 2208 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 35,244 psi | 58% | 2244 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,068 psi | 84% | 2434 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,161 psi | 66% | 2356 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,919 psi | 75% | 2461 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 34,969 psi | 57% | 2241 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 82% | 32,967 psi | 54% | 2238 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,675 psi | 49% | 2159 fps | 99.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 26,107 psi | 43% | 2080 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,908 psi | 52% | 2277 fps | 98.9% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 48,805 psi | 80% | 2461 fps | 95.1% |
| Bofors RP15 | <<locked>> | 84% | 32,808 psi | 54% | 2231 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 51,532 psi | 85% | 2444 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 34,635 psi | 57% | 2310 fps | 95.1% |
| Bofors RP5 | <<locked>> | 82% | 32,967 psi | 54% | 2238 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 45,092 psi | 74% | 2352 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 90% | 34,809 psi | 57% | 2264 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 43,381 psi | 71% | 2392 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 80% | 46,122 psi | 76% | 2405 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 86% | 40,495 psi | 66% | 2336 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 86% | 39,842 psi | 65% | 2323 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,797 psi | 62% | 2257 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 32,764 psi | 54% | 2300 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 42,351 psi | 70% | 2415 fps | 99% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,543 psi | 45% | 1368 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,611 psi | 67% | 2297 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,456 psi | 76% | 2375 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 39,827 psi | 65% | 2303 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 39,900 psi | 66% | 2287 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 88% | 38,870 psi | 64% | 2362 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 43,961 psi | 72% | 2333 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 42,322 psi | 69% | 2326 fps | 99.2% |
| Lovex S071 | <<locked>> | 80% | 26,629 psi | 44% | 2028 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 40,161 psi | 66% | 2326 fps | 97.3% |
| Norma 217 | <<locked>> | 96% | 30,414 psi | 50% | 2247 fps | 95.4% |
| Norma MRP | 80.4 gr | 80% | 32,111 psi | 53% | 2244 fps | 96.6% |
| Norma URP | <<locked>> | 80% | 41,162 psi | 68% | 2343 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 35,868 psi | 59% | 2313 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 39,856 psi | 65% | 2336 fps | 99.3% |
| Ramshot Magnum | <<locked>> | 86% | 31,821 psi | 52% | 2211 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,268 psi | 46% | 1404 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,532 psi | 85% | 2454 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,704 psi | 80% | 2493 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,423 psi | 68% | 2369 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,784 psi | 65% | 2382 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 29,675 psi | 49% | 2218 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 39,987 psi | 66% | 2454 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 48,733 psi | 80% | 2402 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 36,434 psi | 60% | 2224 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 80% | 34,127 psi | 56% | 2224 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 45,092 psi | 74% | 2352 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,961 psi | 72% | 2333 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 42,322 psi | 69% | 2326 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,763 psi | 82% | 2454 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,313 psi | 81% | 2293 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,047 psi | 71% | 2287 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 33,808 psi | 56% | 2218 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 48,675 psi | 80% | 2398 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 39,436 psi | 65% | 2264 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 37,840 psi | 62% | 2303 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,679 psi | 57% | 2211 fps | 96.9% |
| Vihtavuori N150 | <<locked>> | 80% | 46,615 psi | 77% | 2333 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,554 psi | 70% | 2336 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 31,981 psi | 53% | 2149 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 41,945 psi | 69% | 2343 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 33,199 psi | 55% | 2224 fps | 99.5% |
| Vihtavuori N560 | 86.4 gr | 86% | 39,726 psi | 65% | 2395 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 90% | 36,608 psi | 60% | 2329 fps | 95% |
| Vihtavuori N568 | <<locked>> | 98% | 41,698 psi | 68% | 2470 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,423 psi | 68% | 2303 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,511 psi | 71% | 2395 fps | 99.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,252 psi | 43% | 2172 fps | 99.7% |
| Winchester Supreme 780 | <<locked>> | 82% | 33,750 psi | 55% | 2192 fps | 95.5% |
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 81 powders for .375 Swiss P loaded with the .375 | 340gr | Rhino Solid. Winchester StaBALL HD delivers the highest muzzle velocity at 2,684 fps; across all powders the maximum-charge window runs from 1,535 fps to 2,684 fps. ADI AR 2217 gives the best case fill at 100 %, and 81 of the 81 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 340.0 gr projectile in 0.375" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Norma MRP, Vihtavuori N560, Accurate MAGPRO rank at the top here: for .375 Swiss P with the .375 | 340gr | Rhino Solid 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.