Load Specifications
Load data in caliber .260 Picra with .264 | 140gr | RWS Doppelkern bullet and 24 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N32C Tin Star, ReloadSwiss RS 14 and Hodgdon TrailBoss.
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: 5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 11 FS² | <<locked>> | 64% | 46,920 psi | 83% | 1388 fps | 96.4% |
| Accurate Solo 1000² | <<locked>> | 64% | 48,646 psi | 86% | 1201 fps | 100% |
| ADI AP 100² | <<locked>> | 64% | 47,007 psi | 83% | 1293 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 49,197 psi | 87% | 1171 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 49,545 psi | 88% | 1184 fps | 100% |
| ADI AS 30² | <<locked>> | 68% | 49,922 psi | 88% | 1198 fps | 100% |
| Alliant Green Dot² | <<locked>> | 64% | 49,705 psi | 88% | 1214 fps | 100% |
| Alliant Herco² | <<locked>> | 68% | 47,297 psi | 84% | 1237 fps | 100% |
| Alliant RED DOT² | <<locked>> | 68% | 49,516 psi | 88% | 1201 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 76% | 48,689 psi | 86% | 1184 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 49,269 psi | 87% | 1178 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,447 psi | 61% | 1014 fps | 100% |
| Maxam CSB 1² | <<locked>> | 64% | 48,254 psi | 85% | 1211 fps | 100% |
| Maxam CSB 3² | <<locked>> | 64% | 49,342 psi | 87% | 1211 fps | 100% |
| Maxam CSB 4² | <<locked>> | 64% | 49,908 psi | 88% | 1211 fps | 100% |
| Maxam CSB 5² | <<locked>> | 64% | 49,806 psi | 88% | 1191 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,693 psi | 61% | 1033 fps | 100% |
| ReloadSwiss RS 30² | <<locked>> | 72% | 47,630 psi | 84% | 1398 fps | 99.7% |
| SNPE Vectan A0² | <<locked>> | 64% | 51,068 psi | 90% | 1260 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 50,096 psi | 89% | 1188 fps | 100% |
| SNPE Vectan BA6 1/2² | <<locked>> | 76% | 47,456 psi | 84% | 1358 fps | 100% |
| Somchem S265² | <<locked>> | 72% | 50,952 psi | 90% | 1427 fps | 98.8% |
| Vihtavuori N110² | <<locked>> | 68% | 47,456 psi | 84% | 1375 fps | 100% |
| Vihtavuori N32C Tin Star | <<locked>> | 92% | 48,457 psi | 86% | 1152 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 11 FS*² | <<locked>> | 60% | 41,046 psi | 73% | 1309 fps | 94.3% |
| Accurate Solo 1000² | <<locked>> | 60% | 44,672 psi | 79% | 1155 fps | 100% |
| ADI AP 100² | <<locked>> | 60% | 42,264 psi | 75% | 1240 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 38,754 psi | 69% | 1056 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 38,624 psi | 68% | 1066 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 41,959 psi | 74% | 1112 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 45,121 psi | 80% | 1168 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 39,378 psi | 70% | 1148 fps | 100% |
| Alliant RED DOT² | <<locked>> | 60% | 41,989 psi | 74% | 1122 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 34,026 psi | 60% | 1027 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 33,765 psi | 60% | 1004 fps | 100% |
| Hodgdon TrailBoss² | 6.5 gr | 60% | 17,637 psi | 31% | 764 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 43,816 psi | 77% | 1165 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 45,353 psi | 80% | 1171 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 45,876 psi | 81% | 1171 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 45,759 psi | 81% | 1152 fps | 100% |
| ReloadSwiss RS 14² | 6.7 gr | 60% | 17,970 psi | 32% | 784 fps | 100% |
| ReloadSwiss RS 30² | <<locked>> | 60% | 32,648 psi | 58% | 1191 fps | 95.4% |
| SNPE Vectan A0² | <<locked>> | 60% | 46,543 psi | 82% | 1217 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 42,656 psi | 75% | 1112 fps | 100% |
| SNPE Vectan BA6 1/2² | <<locked>> | 60% | 29,950 psi | 53% | 1125 fps | 98.9% |
| Somchem S265*² | <<locked>> | 60% | 35,766 psi | 63% | 1227 fps | 94.5% |
| Vihtavuori N110² | <<locked>> | 60% | 36,680 psi | 65% | 1234 fps | 99.1% |
| Vihtavuori N32C Tin Star² | 8.9 gr | 60% | 27,311 psi | 48% | 909 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 3 powders for .260 Picra loaded with the .264 | 140gr | RWS Doppelkern. Vihtavuori N32C Tin Star delivers the highest muzzle velocity at 1,152 fps; across all powders the maximum-charge window runs from 1,014 fps to 1,152 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 3 of the 3 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 61–86 %, leaving at least 14 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 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. Vihtavuori N32C Tin Star, ReloadSwiss RS 14, Hodgdon TrailBoss rank at the top here: for .260 Picra with the .264 | 140gr | RWS Doppelkern they combine a high case fill with complete burn and sit in the upper velocity band. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N32C Tin Star 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.