Load Specifications
Load data in caliber 5.7 x 28 with .224 | 55gr | Prvi Partizan SP bullet and 67 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N105, Vihtavuori 3N38 and ADI AP 100.
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: 4.8"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 72% | 43,700 psi | 87% | 1476 fps | 100% |
| Accurate No. 7*² | <<locked>> | 68% | 39,900 psi | 80% | 1581 fps | 94.6% |
| Accurate No. 9*² | <<locked>> | 76% | 40,277 psi | 80% | 1581 fps | 89.5% |
| Accurate Solo 1000² | <<locked>> | 76% | 43,700 psi | 87% | 1375 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 45,208 psi | 90% | 1440 fps | 100% |
| Accurate TCM*² | <<locked>> | 76% | 40,190 psi | 80% | 1578 fps | 90.9% |
| ADI AP 100 | <<locked>> | 92% | 44,556 psi | 89% | 1588 fps | 100% |
| ADI AP 70N² | <<locked>> | 64% | 42,786 psi | 86% | 1427 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 43,236 psi | 86% | 1273 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 42,351 psi | 85% | 1293 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 43,888 psi | 88% | 1342 fps | 100% |
| ADI AS 50N² | <<locked>> | 72% | 43,859 psi | 88% | 1388 fps | 100% |
| Alliant 2400* | <<locked>> | 88% | 43,671 psi | 87% | 1650 fps | 87.9% |
| Alliant BE-86² | <<locked>> | 76% | 44,208 psi | 88% | 1414 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 92% | 44,266 psi | 88% | 1640 fps | 95.2% |
| Alliant BULLSEYE² | <<locked>> | 68% | 43,192 psi | 86% | 1493 fps | 100% |
| Alliant Green Dot² | <<locked>> | 76% | 43,250 psi | 86% | 1381 fps | 100% |
| Alliant Herco | <<locked>> | 92% | 44,237 psi | 88% | 1499 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 76% | 45,092 psi | 90% | 1637 fps | 99.9% |
| Alliant RED DOT | <<locked>> | 80% | 45,121 psi | 90% | 1375 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 64% | 43,990 psi | 88% | 1509 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 76% | 42,264 psi | 84% | 1483 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 44,469 psi | 89% | 1381 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 92% | 43,352 psi | 87% | 1371 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 68% | 42,119 psi | 84% | 1368 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 44,338 psi | 89% | 1312 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 64% | 45,223 psi | 90% | 1565 fps | 100% |
| Hodgdon LilGun*ᴾ | <<locked>> | 100% | 44,628 psi | 89% | 1736 fps | 88.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 23,061 psi | 46% | 1056 fps | 100% |
| Hodgdon Universal² | <<locked>> | 72% | 44,628 psi | 89% | 1447 fps | 100% |
| Lovex D037.1*² | <<locked>> | 68% | 39,900 psi | 80% | 1581 fps | 94.6% |
| Lovex D037.2*² | <<locked>> | 76% | 41,669 psi | 83% | 1601 fps | 90.1% |
| Lovex S011² | <<locked>> | 64% | 42,177 psi | 84% | 1388 fps | 100% |
| Lovex S020² | <<locked>> | 68% | 42,105 psi | 84% | 1440 fps | 100% |
| Maxam CSB 1 | <<locked>> | 80% | 42,627 psi | 85% | 1411 fps | 100% |
| Maxam CSB 2² | <<locked>> | 76% | 44,019 psi | 88% | 1414 fps | 100% |
| Maxam CSB 3² | <<locked>> | 76% | 43,178 psi | 86% | 1391 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 44,817 psi | 90% | 1391 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 42,873 psi | 86% | 1322 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 88% | 44,034 psi | 88% | 1660 fps | 89.1% |
| Ramshot Silhouette² | <<locked>> | 64% | 43,468 psi | 87% | 1503 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 64% | 41,843 psi | 84% | 1371 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 21,393 psi | 43% | 1060 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 76% | 41,916 psi | 84% | 1463 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 76% | 42,627 psi | 85% | 1611 fps | 97.3% |
| Rottweil P 806² | <<locked>> | 76% | 40,538 psi | 81% | 1558 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 76% | 41,669 psi | 83% | 1601 fps | 90.1% |
| Shooters World Major Pistol*² | <<locked>> | 68% | 39,900 psi | 80% | 1581 fps | 94.6% |
| SNPE Vectan A0 | <<locked>> | 80% | 43,859 psi | 88% | 1467 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 72% | 41,916 psi | 84% | 1391 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 72% | 41,350 psi | 83% | 1407 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 44,150 psi | 88% | 1312 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 84% | 43,627 psi | 87% | 1529 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 72% | 41,046 psi | 82% | 1404 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 68% | 41,974 psi | 84% | 1588 fps | 100% |
| Somchem MP200² | <<locked>> | 72% | 44,802 psi | 90% | 1512 fps | 100% |
| Somchem MS200² | <<locked>> | 76% | 43,714 psi | 87% | 1473 fps | 100% |
| Somchem S221² | <<locked>> | 64% | 43,149 psi | 86% | 1591 fps | 99.1% |
| Vihtavuori 3N37² | <<locked>> | 76% | 43,337 psi | 87% | 1535 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 88% | 41,887 psi | 84% | 1585 fps | 97.7% |
| Vihtavuori N105 | <<locked>> | 92% | 43,497 psi | 87% | 1637 fps | 99.7% |
| Vihtavuori N320² | <<locked>> | 72% | 45,165 psi | 90% | 1391 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 38,551 psi | 77% | 1247 fps | 100% |
| Vihtavuori N330² | <<locked>> | 68% | 42,322 psi | 85% | 1417 fps | 100% |
| Vihtavuori N340² | <<locked>> | 76% | 43,859 psi | 88% | 1473 fps | 100% |
| Vihtavuori N350 | <<locked>> | 80% | 41,814 psi | 84% | 1512 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 76% | 42,221 psi | 84% | 1424 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4.8"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 30,850 psi | 62% | 1309 fps | 100% |
| Accurate No. 7*² | <<locked>> | 60% | 30,980 psi | 62% | 1430 fps | 90.5% |
| Accurate No. 9*² | <<locked>> | 72% | 35,070 psi | 70% | 1499 fps | 87% |
| Accurate Solo 1000² | <<locked>> | 60% | 30,110 psi | 60% | 1201 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 28,442 psi | 57% | 1227 fps | 100% |
| Accurate TCM*² | <<locked>> | 68% | 31,459 psi | 63% | 1430 fps | 86.4% |
| ADI AP 100*² | 3.8 gr | 60% | 19,885 psi | 40% | 1155 fps | 92.4% |
| ADI AP 70N² | <<locked>> | 60% | 39,392 psi | 79% | 1385 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 30,806 psi | 62% | 1119 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 29,254 psi | 58% | 1125 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 30,052 psi | 60% | 1168 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 33,402 psi | 67% | 1257 fps | 100% |
| Alliant 2400* | <<locked>> | 84% | 38,130 psi | 76% | 1565 fps | 85.4% |
| Alliant BE-86² | <<locked>> | 60% | 29,269 psi | 58% | 1227 fps | 100% |
| Alliant BLUE DOT*² | <<locked>> | 72% | 26,121 psi | 52% | 1325 fps | 86.3% |
| Alliant BULLSEYE² | <<locked>> | 60% | 34,592 psi | 69% | 1381 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 29,921 psi | 60% | 1207 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 21,277 psi | 43% | 1145 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 28,021 psi | 56% | 1358 fps | 96.3% |
| Alliant RED DOT² | <<locked>> | 60% | 29,298 psi | 59% | 1171 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 38,740 psi | 77% | 1444 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 28,558 psi | 57% | 1286 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 30,748 psi | 61% | 1214 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 20,711 psi | 41% | 1060 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 32,750 psi | 65% | 1257 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 25,324 psi | 51% | 1063 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 40,437 psi | 81% | 1509 fps | 100% |
| Hodgdon LilGun* | <<locked>> | 96% | 38,551 psi | 77% | 1640 fps | 85.3% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 10,965 psi | 22% | 784 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 32,967 psi | 66% | 1299 fps | 100% |
| Lovex D037.1*² | <<locked>> | 60% | 30,980 psi | 62% | 1430 fps | 90.5% |
| Lovex D037.2*² | <<locked>> | 72% | 36,332 psi | 73% | 1519 fps | 87.6% |
| Lovex S011² | <<locked>> | 60% | 38,537 psi | 77% | 1342 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 33,460 psi | 67% | 1329 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 25,904 psi | 52% | 1181 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 29,414 psi | 59% | 1227 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 28,587 psi | 57% | 1204 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 31,082 psi | 62% | 1220 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 33,953 psi | 68% | 1214 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 84% | 38,363 psi | 77% | 1575 fps | 86.5% |
| Ramshot Silhouette² | <<locked>> | 60% | 38,711 psi | 77% | 1444 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 36,724 psi | 73% | 1309 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 11,037 psi | 22% | 807 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 26,760 psi | 53% | 1253 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 60% | 26,194 psi | 52% | 1325 fps | 90.1% |
| Rottweil P 806² | <<locked>> | 60% | 23,960 psi | 48% | 1286 fps | 98.2% |
| Shooters World Heavy Pistol*² | <<locked>> | 72% | 36,332 psi | 73% | 1519 fps | 87.6% |
| Shooters World Major Pistol*² | <<locked>> | 60% | 30,980 psi | 62% | 1430 fps | 90.5% |
| SNPE Vectan A0² | <<locked>> | 60% | 26,237 psi | 52% | 1224 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 31,473 psi | 63% | 1260 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 30,821 psi | 62% | 1270 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 32,300 psi | 65% | 1168 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 23,192 psi | 46% | 1207 fps | 98.6% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 30,197 psi | 60% | 1260 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 33,040 psi | 66% | 1453 fps | 99.1% |
| Somchem MP200² | <<locked>> | 60% | 32,271 psi | 64% | 1345 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 29,675 psi | 59% | 1283 fps | 100% |
| Somchem S221² | <<locked>> | 60% | 37,507 psi | 75% | 1506 fps | 98% |
| Vihtavuori 3N37² | <<locked>> | 60% | 27,789 psi | 56% | 1309 fps | 99.9% |
| Vihtavuori 3N38*² | 4.3 gr | 60% | 19,145 psi | 38% | 1152 fps | 85.2% |
| Vihtavuori N105*² | 4.3 gr | 60% | 16,969 psi | 34% | 1138 fps | 86.7% |
| Vihtavuori N320² | <<locked>> | 60% | 34,055 psi | 68% | 1260 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 18,202 psi | 36% | 945 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 33,692 psi | 67% | 1309 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 29,370 psi | 59% | 1283 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 23,873 psi | 48% | 1230 fps | 99.5% |
| Winchester AutoComp ² | <<locked>> | 60% | 27,151 psi | 54% | 1220 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 67 powders for 5.7 x 28 loaded with the .224 | 55gr | Prvi Partizan SP. Hodgdon LilGun delivers the highest muzzle velocity at 1,736 fps; across all powders the maximum-charge window runs from 1,056 fps to 1,736 fps. Hodgdon LilGun gives the best case fill at 100 %, and 19 of the 67 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (345 MPa), the top charges use 43–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.224" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Hodgdon LilGun, 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 N105, Vihtavuori 3N38, ADI AP 100 rank at the top here: for 5.7 x 28 with the .224 | 55gr | Prvi Partizan SP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 7, Accurate No. 9, Accurate TCM burn incompletely and react more sensitively to barrel length and temperature. ADI APS 350, Baschieri & Pellagri 102 Pistol, Hodgdon Clays 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.