Load Specifications
Load data in caliber .22 Picra with .224 | 50gr | Sierra SP SemiSp bullet and 51 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. 2² | <<locked>> | 64% | 39,610 psi | 85% | 1572 fps | 100% |
| Accurate No. 9*² | <<locked>> | 68% | 38,101 psi | 82% | 1680 fps | 89.3% |
| Accurate Solo 1000² | <<locked>> | 68% | 40,074 psi | 86% | 1473 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 68% | 38,725 psi | 83% | 1506 fps | 100% |
| Accurate TCM*² | <<locked>> | 68% | 38,493 psi | 83% | 1683 fps | 90.9% |
| ADI AP 100 | <<locked>> | 80% | 39,247 psi | 85% | 1657 fps | 99.9% |
| ADI APS 350² | <<locked>> | 68% | 39,378 psi | 85% | 1375 fps | 100% |
| ADI APS 450² | <<locked>> | 72% | 41,379 psi | 89% | 1427 fps | 100% |
| ADI AS 30² | <<locked>> | 68% | 39,508 psi | 85% | 1434 fps | 100% |
| ADI AS 50N² | <<locked>> | 64% | 40,393 psi | 87% | 1490 fps | 100% |
| Alliant BE-86² | <<locked>> | 68% | 39,943 psi | 86% | 1503 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 80% | 38,928 psi | 84% | 1690 fps | 93.8% |
| Alliant Green Dot² | <<locked>> | 68% | 41,162 psi | 89% | 1499 fps | 100% |
| Alliant Herco | <<locked>> | 80% | 39,450 psi | 85% | 1575 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 64% | 37,565 psi | 81% | 1663 fps | 99.4% |
| Alliant RED DOT² | <<locked>> | 68% | 38,116 psi | 82% | 1430 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 68% | 40,321 psi | 87% | 1598 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 41,031 psi | 88% | 1486 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 40,872 psi | 88% | 1480 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 41,452 psi | 89% | 1496 fps | 100% |
| Hodgdon Clays | <<locked>> | 80% | 41,191 psi | 89% | 1421 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 24,990 psi | 54% | 1201 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 41,437 psi | 89% | 1552 fps | 100% |
| Lovex D037.2*² | <<locked>> | 68% | 39,117 psi | 84% | 1693 fps | 89.7% |
| Maxam CSB 1² | <<locked>> | 72% | 40,408 psi | 87% | 1526 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 41,060 psi | 88% | 1516 fps | 100% |
| Maxam CSB 3² | <<locked>> | 68% | 39,262 psi | 85% | 1486 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 40,857 psi | 88% | 1490 fps | 100% |
| Maxam CSB 5² | <<locked>> | 64% | 40,292 psi | 87% | 1437 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 24,221 psi | 52% | 1217 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 68% | 39,378 psi | 85% | 1572 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 68% | 40,147 psi | 87% | 1709 fps | 97.1% |
| Rottweil P 806² | <<locked>> | 68% | 39,291 psi | 85% | 1657 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 68% | 39,117 psi | 84% | 1693 fps | 89.7% |
| SNPE Vectan A0² | <<locked>> | 72% | 40,335 psi | 87% | 1568 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 64% | 38,856 psi | 84% | 1493 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 41,945 psi | 90% | 1558 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 64% | 38,870 psi | 84% | 1394 fps | 100% |
| SNPE Vectan BA6 1/2*ᴾ | <<locked>> | 100% | 34,679 psi | 75% | 1631 fps | 87.9% |
| SNPE Vectan BA7 1/2² | <<locked>> | 76% | 40,988 psi | 88% | 1637 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 41,785 psi | 90% | 1552 fps | 100% |
| Somchem MP200² | <<locked>> | 64% | 41,046 psi | 88% | 1608 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 40,901 psi | 88% | 1581 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 68% | 40,509 psi | 87% | 1640 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 80% | 41,321 psi | 89% | 1716 fps | 98% |
| Vihtavuori N105 | <<locked>> | 80% | 39,537 psi | 85% | 1703 fps | 99.4% |
| Vihtavuori N320² | <<locked>> | 64% | 41,176 psi | 89% | 1490 fps | 100% |
| Vihtavuori N32C Tin Star | <<locked>> | 96% | 40,059 psi | 86% | 1401 fps | 100% |
| Vihtavuori N340² | <<locked>> | 68% | 41,887 psi | 90% | 1594 fps | 100% |
| Vihtavuori N350² | <<locked>> | 72% | 39,610 psi | 85% | 1624 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 68% | 38,247 psi | 82% | 1512 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. 2² | <<locked>> | 60% | 35,520 psi | 77% | 1512 fps | 100% |
| Accurate No. 9*² | <<locked>> | 64% | 33,562 psi | 72% | 1594 fps | 86.8% |
| Accurate Solo 1000² | <<locked>> | 60% | 33,881 psi | 73% | 1385 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 31,502 psi | 68% | 1398 fps | 100% |
| Accurate TCM*² | <<locked>> | 60% | 28,935 psi | 62% | 1496 fps | 85.3% |
| ADI AP 100*² | <<locked>> | 60% | 22,887 psi | 49% | 1332 fps | 94.9% |
| ADI APS 350² | <<locked>> | 60% | 33,025 psi | 71% | 1283 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 31,821 psi | 69% | 1289 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 33,272 psi | 72% | 1345 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 36,608 psi | 79% | 1434 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 32,358 psi | 70% | 1391 fps | 100% |
| Alliant BLUE DOT*² | <<locked>> | 64% | 25,440 psi | 55% | 1414 fps | 86.1% |
| Alliant Green Dot² | <<locked>> | 60% | 33,765 psi | 73% | 1394 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 24,381 psi | 53% | 1319 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 33,388 psi | 72% | 1581 fps | 98.4% |
| Alliant RED DOT² | <<locked>> | 60% | 31,908 psi | 69% | 1339 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 33,344 psi | 72% | 1490 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 33,576 psi | 72% | 1385 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 23,279 psi | 50% | 1207 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 37,420 psi | 81% | 1444 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 27,528 psi | 59% | 1217 fps | 100% |
| Hodgdon TrailBoss² | 2.6 gr | 60% | 12,517 psi | 27% | 909 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 36,521 psi | 79% | 1480 fps | 100% |
| Lovex D037.2*² | <<locked>> | 64% | 34,432 psi | 74% | 1611 fps | 87.4% |
| Maxam CSB 1² | <<locked>> | 60% | 30,153 psi | 65% | 1371 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 33,823 psi | 73% | 1414 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 32,155 psi | 69% | 1378 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 33,431 psi | 72% | 1381 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 36,419 psi | 78% | 1381 fps | 100% |
| ReloadSwiss RS 14² | 2.6 gr | 60% | 11,850 psi | 26% | 912 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 32,445 psi | 70% | 1463 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 60% | 31,314 psi | 67% | 1545 fps | 93.5% |
| Rottweil P 806² | <<locked>> | 60% | 30,530 psi | 66% | 1512 fps | 99.8% |
| Shooters World Heavy Pistol*² | <<locked>> | 64% | 34,432 psi | 74% | 1611 fps | 87.4% |
| SNPE Vectan A0² | <<locked>> | 60% | 29,472 psi | 64% | 1398 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 34,476 psi | 74% | 1427 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 33,997 psi | 73% | 1447 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 35,288 psi | 76% | 1342 fps | 100% |
| SNPE Vectan BA6 1/2* | <<locked>> | 96% | 31,386 psi | 68% | 1568 fps | 85.8% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 26,556 psi | 57% | 1388 fps | 99.7% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 34,650 psi | 75% | 1453 fps | 100% |
| Somchem MP200² | <<locked>> | 60% | 37,521 psi | 81% | 1555 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 32,808 psi | 71% | 1460 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 31,995 psi | 69% | 1503 fps | 100% |
| Vihtavuori 3N38*² | <<locked>> | 60% | 23,366 psi | 50% | 1358 fps | 89.5% |
| Vihtavuori N105*² | <<locked>> | 60% | 21,161 psi | 46% | 1329 fps | 90.8% |
| Vihtavuori N320² | <<locked>> | 60% | 37,202 psi | 80% | 1437 fps | 100% |
| Vihtavuori N32C Tin Star² | 3.5 gr | 60% | 19,957 psi | 43% | 1079 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 33,446 psi | 72% | 1470 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 28,065 psi | 60% | 1424 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 31,183 psi | 67% | 1401 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 .22 Picra loaded with the .224 | 50gr | Sierra SP SemiSp. Vihtavuori 3N38 delivers the highest muzzle velocity at 1,716 fps; across all powders the maximum-charge window runs from 1,201 fps to 1,716 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 (320 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14, SNPE Vectan BA6 1/2 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 .22 Picra with the .224 | 50gr | Sierra SP SemiSp they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 9, Accurate TCM, Alliant BLUE DOT burn incompletely and react more sensitively to barrel length and temperature. 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.