Load Specifications
Load data in caliber .375 R Verney-Carron with .375 | 300gr | Sierra GameKing bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
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 2700 | <<locked>> | 82% | 52,779 psi | 89% | 2582 fps | 99.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,780 psi | 90% | 2677 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 52,214 psi | 88% | 2566 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 52,576 psi | 88% | 2671 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 52,069 psi | 88% | 2759 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 52,315 psi | 88% | 2598 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 53,519 psi | 90% | 2717 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 98% | 51,039 psi | 86% | 2707 fps | 97.3% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,621 psi | 90% | 2713 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 52,939 psi | 89% | 2618 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 53,113 psi | 89% | 2638 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 53,417 psi | 90% | 2723 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 50,836 psi | 85% | 2694 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 52,895 psi | 89% | 2703 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,505 psi | 90% | 2762 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,473 psi | 85% | 2690 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,990 psi | 74% | 2631 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 50,125 psi | 84% | 2772 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,066 psi | 83% | 2690 fps | 98.2% |
| Bofors RP3 | <<locked>> | 84% | 53,606 psi | 90% | 2631 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,505 psi | 90% | 2762 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 53,229 psi | 90% | 2625 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 43,801 psi | 74% | 2572 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 82% | 50,705 psi | 85% | 2602 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 51,126 psi | 86% | 2667 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 86% | 51,213 psi | 86% | 2631 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 96% | 51,285 psi | 86% | 2657 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,563 psi | 90% | 2694 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,722 psi | 90% | 2651 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,134 psi | 73% | 2667 fps | 97.7% |
| Hodgdon Superformance | <<locked>> | 88% | 50,879 psi | 86% | 2700 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,550 psi | 61% | 1627 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 51,793 psi | 87% | 2579 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 50,763 psi | 85% | 2608 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 86% | 51,517 psi | 87% | 2602 fps | 99.3% |
| IMR 4831 | <<locked>> | 92% | 52,982 psi | 89% | 2664 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 53,127 psi | 89% | 2648 fps | 97.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,953 psi | 87% | 2736 fps | 97.6% |
| Lovex S062 | <<locked>> | 82% | 52,054 psi | 88% | 2575 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 51,634 psi | 87% | 2598 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 52,707 psi | 89% | 2638 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,846 psi | 75% | 2543 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 52,446 psi | 88% | 2625 fps | 100% |
| Norma 204 | <<locked>> | 90% | 51,068 psi | 86% | 2654 fps | 98.2% |
| Norma MRP | <<locked>> | 98% | 52,997 psi | 89% | 2785 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 51,416 psi | 86% | 2657 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 52,997 psi | 89% | 2651 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,344 psi | 88% | 2753 fps | 98% |
| Ramshot Hunter | <<locked>> | 92% | 53,548 psi | 90% | 2710 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,615 psi | 78% | 2635 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,202 psi | 63% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 50,575 psi | 85% | 2585 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 50,270 psi | 85% | 2684 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 52,243 psi | 88% | 2694 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 50,691 psi | 85% | 2717 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,902 psi | 72% | 2661 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 86% | 53,795 psi | 90% | 2631 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 51,750 psi | 87% | 2635 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 96% | 52,083 psi | 88% | 2690 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 88% | 53,229 psi | 90% | 2625 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 51,634 psi | 87% | 2598 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 52,054 psi | 88% | 2575 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 52,707 psi | 89% | 2638 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 51,764 psi | 87% | 2638 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 51,692 psi | 87% | 2477 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 51,024 psi | 86% | 2552 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 51,619 psi | 87% | 2687 fps | 98.6% |
| Somchem S355 | <<locked>> | 84% | 50,618 psi | 85% | 2579 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 53,359 psi | 90% | 2631 fps | 97% |
| Somchem S365 | <<locked>> | 92% | 50,560 psi | 85% | 2657 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 52,707 psi | 89% | 2667 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 86% | 51,634 psi | 87% | 2556 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 53,476 psi | 90% | 2651 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,808 psi | 87% | 2644 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 82% | 52,663 psi | 89% | 2559 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 52,649 psi | 89% | 2657 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 53,026 psi | 89% | 2713 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 53,359 psi | 90% | 2776 fps | 97.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 45,440 psi | 76% | 2638 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 52,866 psi | 89% | 2618 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 51,314 psi | 86% | 2671 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,643 psi | 77% | 2756 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 52,678 psi | 89% | 2664 fps | 98.6% |
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 2700 | <<locked>> | 80% | 49,472 psi | 83% | 2530 fps | 98.6% |
| Accurate 3100 | <<locked>> | 82% | 29,341 psi | 49% | 2221 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 49,037 psi | 82% | 2523 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,391 psi | 63% | 2415 fps | 99.1% |
| Accurate MAGPRO | <<locked>> | 96% | 48,472 psi | 82% | 2700 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 46,209 psi | 78% | 2503 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 38,682 psi | 65% | 2448 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 94% | 44,759 psi | 75% | 2595 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 38,827 psi | 65% | 2451 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,717 psi | 79% | 2526 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,937 psi | 84% | 2589 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,506 psi | 61% | 2425 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,292 psi | 69% | 2539 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 38,435 psi | 65% | 2444 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 90% | 38,450 psi | 65% | 2490 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,745 psi | 45% | 2205 fps | 97.5% |
| Alliant Reloder-25 | <<locked>> | 88% | 30,269 psi | 51% | 2316 fps | 95.8% |
| Alliant Reloder-26 | 83.1 gr | 80% | 28,413 psi | 48% | 2306 fps | 95.9% |
| Bofors RP15 | <<locked>> | 92% | 37,942 psi | 64% | 2480 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 47,021 psi | 79% | 2536 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 38,450 psi | 65% | 2490 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 41,510 psi | 70% | 2425 fps | 97.3% |
| Hodgdon H1000 | <<locked>> | 98% | 40,886 psi | 69% | 2513 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 47,442 psi | 80% | 2549 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 39,276 psi | 66% | 2457 fps | 97.4% |
| Hodgdon H4350 | <<locked>> | 80% | 42,235 psi | 71% | 2474 fps | 96.8% |
| Hodgdon H4831 | <<locked>> | 92% | 44,802 psi | 75% | 2546 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 94% | 46,949 psi | 79% | 2585 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,055 psi | 57% | 2323 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 96% | 38,000 psi | 64% | 2549 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 38,174 psi | 64% | 2470 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,209 psi | 46% | 1450 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,617 psi | 82% | 2533 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,159 psi | 62% | 2359 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,873 psi | 72% | 2454 fps | 98% |
| IMR 4831 | <<locked>> | 80% | 35,969 psi | 60% | 2372 fps | 98.9% |
| IMR 4955 Enduron | <<locked>> | 90% | 44,034 psi | 74% | 2497 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 94% | 42,699 psi | 72% | 2569 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 48,936 psi | 82% | 2530 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,393 psi | 68% | 2405 fps | 98.7% |
| Lovex S070 | <<locked>> | 80% | 38,682 psi | 65% | 2392 fps | 97.4% |
| Lovex S071 | <<locked>> | 88% | 30,603 psi | 51% | 2254 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 49,269 psi | 83% | 2575 fps | 100% |
| Norma 204 | <<locked>> | 82% | 39,015 psi | 66% | 2438 fps | 95.3% |
| Norma MRP | 84.7 gr | 84% | 32,924 psi | 55% | 2392 fps | 95% |
| Norma URP | <<locked>> | 80% | 37,260 psi | 63% | 2408 fps | 99% |
| Ramshot Big Game | <<locked>> | 80% | 49,472 psi | 83% | 2598 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 42,424 psi | 71% | 2575 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 35,998 psi | 61% | 2398 fps | 97.3% |
| Ramshot Magnum | <<locked>> | 94% | 37,637 psi | 63% | 2464 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,862 psi | 47% | 1490 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,398 psi | 80% | 2536 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,859 psi | 74% | 2582 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,086 psi | 62% | 2431 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,969 psi | 60% | 2438 fps | 98.3% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 34,824 psi | 59% | 2470 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 44,440 psi | 75% | 2490 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 42,815 psi | 72% | 2480 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 86% | 37,492 psi | 63% | 2428 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 41,510 psi | 70% | 2425 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,393 psi | 68% | 2405 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 48,936 psi | 82% | 2530 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,682 psi | 65% | 2392 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,368 psi | 76% | 2539 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,658 psi | 77% | 2395 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,595 psi | 67% | 2356 fps | 97.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 37,130 psi | 62% | 2425 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 44,672 psi | 75% | 2487 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 46,673 psi | 78% | 2523 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 33,707 psi | 57% | 2372 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 35,621 psi | 60% | 2362 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 42,714 psi | 72% | 2421 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,580 psi | 65% | 2405 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 90% | 37,449 psi | 63% | 2395 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 49,400 psi | 83% | 2513 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,087 psi | 64% | 2408 fps | 98.9% |
| Vihtavuori N555 | <<locked>> | 80% | 29,457 psi | 50% | 2274 fps | 97.6% |
| Vihtavuori N560 | 92.8 gr | 92% | 43,685 psi | 73% | 2608 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 98% | 42,424 psi | 71% | 2582 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,666 psi | 63% | 2379 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 39,421 psi | 66% | 2461 fps | 97.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,598 psi | 40% | 2182 fps | 96.5% |
| Winchester Supreme 780 | <<locked>> | 88% | 37,391 psi | 63% | 2398 fps | 95% |
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 83 powders for .375 R Verney-Carron loaded with the .375 | 300gr | Sierra GameKing. Norma MRP delivers the highest muzzle velocity at 2,785 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,785 fps. Accurate 3100 gives the best case fill at 100 %, and 83 of the 83 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (410 MPa), the top charges use 61–90 %, 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 3100, Alliant Reloder-22, 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for .375 R Verney-Carron with the .375 | 300gr | Sierra GameKing 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.