Load Specifications
Load data in caliber 7.62 x 25 Tokarev with .309 | 125gr | Rim Rock RNFP Gas Check bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Herco, Baschieri & Pellagri 102 Pistol and Vihtavuori N32C Tin Star.
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 ≥ 60% and propellant combustion ≥ 80%. 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: 4.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 68% | 29,501 psi | 85% | 1047 fps | 100% |
| Accurate Solo 1000² | <<locked>> | 68% | 29,820 psi | 86% | 971 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 76% | 31,299 psi | 90% | 1037 fps | 100% |
| ADI AP 100 | <<locked>> | 92% | 30,661 psi | 88% | 1129 fps | 96.7% |
| ADI APS 350² | <<locked>> | 64% | 28,718 psi | 83% | 873 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 30,690 psi | 88% | 922 fps | 100% |
| ADI AS 30² | <<locked>> | 68% | 28,660 psi | 82% | 935 fps | 100% |
| ADI AS 50N² | <<locked>> | 64% | 27,789 psi | 80% | 961 fps | 100% |
| Alliant BE-86² | <<locked>> | 72% | 29,109 psi | 84% | 1007 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 64% | 28,877 psi | 83% | 1060 fps | 100% |
| Alliant Green Dot² | <<locked>> | 68% | 28,747 psi | 83% | 974 fps | 100% |
| Alliant Herco | <<locked>> | 88% | 29,428 psi | 85% | 1073 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 76% | 30,893 psi | 89% | 1165 fps | 96.1% |
| Alliant RED DOT² | <<locked>> | 72% | 30,661 psi | 88% | 971 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 28,311 psi | 81% | 1060 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 28,950 psi | 83% | 968 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 88% | 29,689 psi | 85% | 994 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 68% | 31,038 psi | 89% | 1014 fps | 100% |
| Hodgdon Clays² | <<locked>> | 76% | 30,734 psi | 88% | 922 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 16,346 psi | 47% | 774 fps | 100% |
| Hodgdon Universal² | <<locked>> | 68% | 30,850 psi | 89% | 1043 fps | 100% |
| Lovex S020² | <<locked>> | 68% | 30,501 psi | 88% | 1056 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 29,602 psi | 85% | 1017 fps | 100% |
| Maxam CSB 2² | <<locked>> | 72% | 29,341 psi | 84% | 1017 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 29,588 psi | 85% | 994 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 29,936 psi | 86% | 981 fps | 100% |
| Maxam CSB 5² | <<locked>> | 64% | 29,356 psi | 84% | 935 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 64% | 30,951 psi | 89% | 1020 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 15,287 psi | 44% | 784 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 76% | 29,443 psi | 85% | 1076 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 76% | 28,776 psi | 83% | 1132 fps | 89.6% |
| Rottweil P 806 | <<locked>> | 84% | 30,850 psi | 89% | 1194 fps | 99.5% |
| SNPE Vectan A0² | <<locked>> | 76% | 29,124 psi | 84% | 1037 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 30,066 psi | 86% | 1010 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 29,095 psi | 84% | 1014 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 64% | 30,690 psi | 88% | 922 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 80% | 28,572 psi | 82% | 1073 fps | 99.1% |
| SNPE Vectan BA9 1/2² | <<locked>> | 72% | 31,111 psi | 89% | 1043 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 72% | 31,169 psi | 90% | 1181 fps | 97.7% |
| Somchem MP200² | <<locked>> | 68% | 30,197 psi | 87% | 1076 fps | 100% |
| Somchem MS200² | <<locked>> | 72% | 30,124 psi | 87% | 1056 fps | 100% |
| Somchem S221*² | <<locked>> | 64% | 28,689 psi | 82% | 1112 fps | 92.8% |
| Vihtavuori 3N37² | <<locked>> | 76% | 30,777 psi | 88% | 1122 fps | 99.9% |
| Vihtavuori 3N38* | <<locked>> | 92% | 30,574 psi | 88% | 1152 fps | 91.6% |
| Vihtavuori N105* | <<locked>> | 96% | 28,587 psi | 82% | 1175 fps | 94.6% |
| Vihtavuori N320² | <<locked>> | 64% | 27,427 psi | 79% | 961 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 29,718 psi | 85% | 928 fps | 100% |
| Vihtavuori N330² | <<locked>> | 68% | 30,806 psi | 89% | 1047 fps | 100% |
| Vihtavuori N340² | <<locked>> | 72% | 29,240 psi | 84% | 1050 fps | 100% |
| Vihtavuori N350 | <<locked>> | 80% | 29,704 psi | 85% | 1102 fps | 99.8% |
| Winchester AutoComp ² | <<locked>> | 76% | 30,980 psi | 89% | 1050 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 22,931 psi | 66% | 958 fps | 99.7% |
| Accurate Solo 1000² | <<locked>> | 60% | 24,453 psi | 70% | 909 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 20,175 psi | 58% | 896 fps | 100% |
| ADI AP 100*² | <<locked>> | 68% | 16,984 psi | 49% | 892 fps | 87.5% |
| ADI APS 350² | <<locked>> | 60% | 25,773 psi | 74% | 840 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 25,208 psi | 72% | 860 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 23,308 psi | 67% | 869 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 25,179 psi | 72% | 928 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 20,508 psi | 59% | 896 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 26,324 psi | 76% | 1027 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 23,656 psi | 68% | 909 fps | 100% |
| Alliant Herco² | 3.6 gr | 60% | 15,040 psi | 43% | 833 fps | 98.2% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 19,087 psi | 55% | 961 fps | 88.5% |
| Alliant RED DOT² | <<locked>> | 60% | 22,437 psi | 64% | 869 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 20,595 psi | 59% | 945 fps | 99.9% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 22,597 psi | 65% | 892 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 3.3 gr | 60% | 14,098 psi | 41% | 774 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 24,831 psi | 71% | 942 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 20,479 psi | 59% | 797 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,469 psi | 21% | 571 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 24,613 psi | 71% | 965 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 24,091 psi | 69% | 978 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 19,348 psi | 56% | 876 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 20,900 psi | 60% | 909 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 22,089 psi | 63% | 899 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 23,337 psi | 67% | 902 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 26,484 psi | 76% | 902 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 26,948 psi | 77% | 974 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 7,324 psi | 21% | 581 fps | 99% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 18,405 psi | 53% | 915 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 72% | 24,860 psi | 71% | 1070 fps | 87% |
| Rottweil P 806*² | <<locked>> | 60% | 13,358 psi | 38% | 876 fps | 88.4% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,537 psi | 56% | 896 fps | 99.8% |
| SNPE Vectan A1² | <<locked>> | 60% | 24,294 psi | 70% | 938 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 23,409 psi | 67% | 942 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 27,876 psi | 80% | 889 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 60% | 16,288 psi | 47% | 863 fps | 92.7% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 22,756 psi | 65% | 935 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 60% | 20,827 psi | 60% | 1010 fps | 92.3% |
| Somchem MP200² | <<locked>> | 60% | 23,438 psi | 67% | 984 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 21,103 psi | 61% | 932 fps | 100% |
| Somchem S221*² | <<locked>> | 60% | 25,744 psi | 74% | 1066 fps | 91.1% |
| Vihtavuori 3N37² | <<locked>> | 60% | 18,797 psi | 54% | 935 fps | 95.9% |
| Vihtavuori 3N38* | <<locked>> | 80% | 21,886 psi | 63% | 1014 fps | 85.7% |
| Vihtavuori N105* | <<locked>> | 80% | 18,449 psi | 53% | 991 fps | 86.5% |
| Vihtavuori N320² | <<locked>> | 60% | 24,758 psi | 71% | 928 fps | 100% |
| Vihtavuori N32C Tin Star² | 2.6 gr | 60% | 12,647 psi | 36% | 696 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 23,090 psi | 66% | 951 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 20,218 psi | 58% | 922 fps | 100% |
| Vihtavuori N350*² | <<locked>> | 60% | 16,056 psi | 46% | 876 fps | 94.1% |
| Winchester AutoComp ² | <<locked>> | 60% | 19,667 psi | 56% | 899 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
* not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.
² fill rate low - you might want to consider using a filler to ensure proper ignition.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 51 powders for 7.62 x 25 Tokarev loaded with the .309 | 125gr | Rim Rock RNFP Gas Check. Rottweil P 806 delivers the highest muzzle velocity at 1,194 fps; across all powders the maximum-charge window runs from 774 fps to 1,194 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 11 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (240 MPa), the top charges use 44–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N32C Tin Star 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 Herco, Baschieri & Pellagri 102 Pistol, Vihtavuori N32C Tin Star rank at the top here: for 7.62 x 25 Tokarev with the .309 | 125gr | Rim Rock RNFP Gas Check they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ReloadSwiss RS 24, Somchem S221, Vihtavuori 3N38 burn incompletely and react more sensitively to barrel length and temperature. Accurate No. 2, Accurate Solo 1000, Accurate Solo 1250 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.