Load Specifications
Load data in caliber .375 R Verney-Carron with .375 | 300gr | Swift A-Frame bullet and 81 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% | 53,577 psi | 90% | 2598 fps | 99.2% |
| Accurate 3100 | <<locked>> | 98% | 51,372 psi | 86% | 2648 fps | 99.8% |
| Accurate 4064 | <<locked>> | 82% | 53,069 psi | 89% | 2582 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 53,519 psi | 90% | 2687 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 53,243 psi | 90% | 2782 fps | 97% |
| ADI AR 2208 | <<locked>> | 84% | 53,040 psi | 89% | 2612 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 50,908 psi | 86% | 2680 fps | 98.5% |
| ADI AR 2213 | <<locked>> | 98% | 51,953 psi | 87% | 2726 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 35,752 psi | 60% | 2467 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 50,502 psi | 85% | 2589 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 50,952 psi | 86% | 2690 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 51,721 psi | 87% | 2710 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 53,751 psi | 90% | 2723 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 98% | 50,995 psi | 86% | 2726 fps | 98.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,576 psi | 87% | 2710 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,831 psi | 75% | 2651 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 51,401 psi | 86% | 2792 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,067 psi | 84% | 2713 fps | 98.4% |
| Bofors RP3 | <<locked>> | 82% | 51,053 psi | 86% | 2602 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 50,995 psi | 86% | 2726 fps | 98.7% |
| Bofors RP7 | <<locked>> | 86% | 50,647 psi | 85% | 2592 fps | 99% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 44,541 psi | 75% | 2592 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 82% | 51,430 psi | 86% | 2618 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 52,127 psi | 88% | 2687 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 52,011 psi | 87% | 2648 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 96% | 52,228 psi | 88% | 2677 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,039 psi | 86% | 2657 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 51,169 psi | 86% | 2618 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,976 psi | 74% | 2690 fps | 98.1% |
| Hodgdon Superformance | <<locked>> | 88% | 51,895 psi | 87% | 2723 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,550 psi | 61% | 1634 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 52,504 psi | 88% | 2595 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 51,517 psi | 87% | 2625 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 52,286 psi | 88% | 2618 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 50,560 psi | 85% | 2631 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,604 psi | 85% | 2615 fps | 96.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,069 psi | 89% | 2759 fps | 97.9% |
| Lovex S062 | <<locked>> | 82% | 52,837 psi | 89% | 2589 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 52,431 psi | 88% | 2615 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 53,635 psi | 90% | 2657 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,701 psi | 77% | 2562 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 53,388 psi | 90% | 2641 fps | 100% |
| Norma 204 | <<locked>> | 90% | 51,953 psi | 87% | 2674 fps | 98.5% |
| Norma MRP | <<locked>> | 96% | 50,459 psi | 85% | 2749 fps | 99.5% |
| Norma URP | <<locked>> | 90% | 52,417 psi | 88% | 2674 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,490 psi | 90% | 2776 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 51,082 psi | 86% | 2677 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,587 psi | 80% | 2657 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,188 psi | 63% | 1673 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 51,329 psi | 86% | 2605 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 51,387 psi | 86% | 2700 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 53,403 psi | 90% | 2713 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 51,706 psi | 87% | 2736 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,714 psi | 74% | 2684 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 84% | 51,271 psi | 86% | 2598 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 52,605 psi | 88% | 2654 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 96% | 53,011 psi | 89% | 2710 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 50,647 psi | 85% | 2592 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 88% | 52,431 psi | 88% | 2615 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 52,837 psi | 89% | 2589 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 53,635 psi | 90% | 2657 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 52,605 psi | 88% | 2654 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 52,272 psi | 88% | 2490 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 51,779 psi | 87% | 2569 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 52,547 psi | 88% | 2707 fps | 98.8% |
| Somchem S355 | <<locked>> | 84% | 51,329 psi | 86% | 2595 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,749 psi | 85% | 2598 fps | 96.6% |
| Somchem S365 | <<locked>> | 92% | 51,663 psi | 87% | 2677 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 53,577 psi | 90% | 2687 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 86% | 52,504 psi | 88% | 2572 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 51,024 psi | 86% | 2621 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,794 psi | 89% | 2661 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 82% | 53,345 psi | 90% | 2572 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 53,359 psi | 90% | 2674 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 50,894 psi | 86% | 2690 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 50,836 psi | 85% | 2740 fps | 97.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 46,398 psi | 78% | 2657 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 53,664 psi | 90% | 2635 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 52,286 psi | 88% | 2690 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,557 psi | 78% | 2776 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 53,650 psi | 90% | 2684 fps | 98.8% |
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% | 50,096 psi | 84% | 2546 fps | 98.8% |
| Accurate 3100 | <<locked>> | 82% | 30,037 psi | 51% | 2244 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 49,937 psi | 84% | 2536 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,130 psi | 64% | 2431 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 94% | 46,224 psi | 78% | 2667 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 46,963 psi | 79% | 2520 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 39,320 psi | 66% | 2467 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 92% | 42,714 psi | 72% | 2562 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 98% | 33,591 psi | 56% | 2411 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,500 psi | 80% | 2543 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,028 psi | 62% | 2441 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,959 psi | 71% | 2552 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 39,117 psi | 66% | 2464 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 88% | 36,753 psi | 62% | 2457 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,267 psi | 46% | 2221 fps | 97.8% |
| Alliant Reloder-25 | <<locked>> | 86% | 28,921 psi | 49% | 2280 fps | 95.1% |
| Alliant Reloder-26 | 84.5 gr | 80% | 28,993 psi | 49% | 2326 fps | 96.3% |
| Bofors RP15 | <<locked>> | 92% | 38,740 psi | 65% | 2500 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 47,950 psi | 81% | 2556 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 36,753 psi | 62% | 2457 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 42,032 psi | 71% | 2441 fps | 97.5% |
| Hodgdon H1000 | <<locked>> | 98% | 41,684 psi | 70% | 2536 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 48,182 psi | 81% | 2566 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 39,972 psi | 67% | 2474 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 43,018 psi | 72% | 2493 fps | 97.1% |
| Hodgdon H4831 | <<locked>> | 92% | 45,716 psi | 77% | 2569 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 44,802 psi | 75% | 2552 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,621 psi | 58% | 2339 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 36,347 psi | 61% | 2513 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 38,812 psi | 65% | 2487 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 46% | 1460 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,356 psi | 83% | 2549 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,768 psi | 64% | 2379 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,526 psi | 73% | 2470 fps | 98.2% |
| IMR 4831 | <<locked>> | 80% | 36,666 psi | 62% | 2388 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 44,701 psi | 75% | 2513 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 94% | 43,584 psi | 73% | 2592 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 49,705 psi | 84% | 2546 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,031 psi | 69% | 2425 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 39,204 psi | 66% | 2408 fps | 97.6% |
| Lovex S071 | <<locked>> | 86% | 29,298 psi | 49% | 2224 fps | 95% |
| Norma 203B | <<locked>> | 80% | 50,038 psi | 84% | 2592 fps | 100% |
| Norma 204 | <<locked>> | 82% | 39,697 psi | 67% | 2457 fps | 95.7% |
| Norma MRP | 86.1 gr | 84% | 33,533 psi | 56% | 2411 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 37,826 psi | 64% | 2425 fps | 99.1% |
| Ramshot Grand | <<locked>> | 94% | 43,250 psi | 73% | 2598 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 36,753 psi | 62% | 2418 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 92% | 35,781 psi | 60% | 2428 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,862 psi | 47% | 1496 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,182 psi | 81% | 2552 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,585 psi | 75% | 2598 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,898 psi | 64% | 2451 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,622 psi | 62% | 2457 fps | 98.6% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 35,578 psi | 60% | 2497 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 45,063 psi | 76% | 2503 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 43,526 psi | 73% | 2500 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 86% | 38,072 psi | 64% | 2444 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 42,032 psi | 71% | 2441 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,031 psi | 69% | 2425 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 49,705 psi | 84% | 2546 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,204 psi | 66% | 2408 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,238 psi | 78% | 2556 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,282 psi | 78% | 2405 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,176 psi | 68% | 2372 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 37,710 psi | 63% | 2441 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 45,397 psi | 76% | 2503 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 44,498 psi | 75% | 2490 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 34,418 psi | 58% | 2388 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 34,011 psi | 57% | 2329 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 43,250 psi | 73% | 2434 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,262 psi | 66% | 2421 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 35,795 psi | 60% | 2362 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 50,082 psi | 84% | 2526 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,696 psi | 65% | 2425 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 30,153 psi | 51% | 2293 fps | 97.9% |
| Vihtavuori N560 | 94.3 gr | 92% | 44,469 psi | 75% | 2628 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 98% | 43,381 psi | 73% | 2602 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,305 psi | 64% | 2395 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 40,103 psi | 67% | 2477 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,076 psi | 40% | 2205 fps | 97% |
| Winchester Supreme 780 | <<locked>> | 88% | 38,000 psi | 64% | 2415 fps | 95.3% |
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 R Verney-Carron loaded with the .375 | 300gr | Swift A-Frame. Alliant Reloder-26 delivers the highest muzzle velocity at 2,792 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,792 fps. ADI AR 2225 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 (410 MPa), the top charges use 60–90 %, 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. ADI AR 2225, Alliant Reloder-23, 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for .375 R Verney-Carron with the .375 | 300gr | Swift A-Frame 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.