Load Specifications
Load data in caliber 5.7 x 28 with .224 | 50gr | Speer TNT 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 3N38, Vihtavuori N105 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% | 41,771 psi | 83% | 1535 fps | 100% |
| Accurate No. 7*² | <<locked>> | 72% | 42,873 psi | 86% | 1699 fps | 94% |
| Accurate No. 9* | <<locked>> | 80% | 43,076 psi | 86% | 1696 fps | 88.7% |
| Accurate Solo 1000² | <<locked>> | 76% | 42,366 psi | 85% | 1434 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 80% | 43,352 psi | 87% | 1503 fps | 100% |
| Accurate TCM* | <<locked>> | 80% | 43,062 psi | 86% | 1693 fps | 90.1% |
| ADI AP 100 | <<locked>> | 92% | 40,727 psi | 81% | 1614 fps | 99.4% |
| ADI AP 70N² | <<locked>> | 64% | 41,104 psi | 82% | 1486 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 42,395 psi | 85% | 1332 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 45,034 psi | 90% | 1394 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 44,570 psi | 89% | 1427 fps | 100% |
| ADI AS 50N² | <<locked>> | 72% | 42,409 psi | 85% | 1447 fps | 100% |
| Alliant BE-86² | <<locked>> | 76% | 42,438 psi | 85% | 1473 fps | 100% |
| Alliant BLUE DOT* | <<locked>> | 92% | 41,655 psi | 83% | 1677 fps | 92.7% |
| Alliant BULLSEYE² | <<locked>> | 72% | 45,092 psi | 90% | 1601 fps | 100% |
| Alliant Green Dot² | <<locked>> | 76% | 41,872 psi | 84% | 1444 fps | 100% |
| Alliant Herco | <<locked>> | 92% | 42,308 psi | 85% | 1562 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 76% | 42,641 psi | 85% | 1686 fps | 99.3% |
| Alliant RED DOT | <<locked>> | 80% | 43,845 psi | 88% | 1437 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 64% | 42,163 psi | 84% | 1568 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 76% | 40,408 psi | 81% | 1542 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 76% | 42,917 psi | 86% | 1440 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 96% | 45,107 psi | 90% | 1470 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 72% | 44,860 psi | 90% | 1473 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 76% | 44,976 psi | 90% | 1529 fps | 100% |
| Hodgdon Clays | <<locked>> | 88% | 43,381 psi | 87% | 1371 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 64% | 42,917 psi | 86% | 1621 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,103 psi | 42% | 1083 fps | 100% |
| Hodgdon Universal² | <<locked>> | 72% | 42,873 psi | 86% | 1506 fps | 100% |
| Lovex D037.1*² | <<locked>> | 72% | 42,873 psi | 86% | 1699 fps | 94% |
| Lovex D037.2* | <<locked>> | 80% | 44,614 psi | 89% | 1722 fps | 89.4% |
| Lovex S011² | <<locked>> | 64% | 40,669 psi | 81% | 1444 fps | 100% |
| Lovex S020² | <<locked>> | 72% | 43,918 psi | 88% | 1539 fps | 100% |
| Maxam CSB 1 | <<locked>> | 84% | 44,411 psi | 89% | 1509 fps | 100% |
| Maxam CSB 2² | <<locked>> | 76% | 42,163 psi | 84% | 1473 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 45,252 psi | 90% | 1496 fps | 100% |
| Maxam CSB 4² | <<locked>> | 76% | 43,323 psi | 87% | 1453 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 41,727 psi | 83% | 1381 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 64% | 41,481 psi | 83% | 1562 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 68% | 43,714 psi | 87% | 1470 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 20,479 psi | 41% | 1102 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 80% | 45,020 psi | 90% | 1585 fps | 100% |
| ReloadSwiss RS 24 | <<locked>> | 80% | 44,672 psi | 89% | 1716 fps | 96.6% |
| Rottweil P 801² | <<locked>> | 64% | 43,976 psi | 88% | 1447 fps | 100% |
| Rottweil P 806 | <<locked>> | 80% | 41,655 psi | 83% | 1660 fps | 100% |
| Shooters World Heavy Pistol* | <<locked>> | 80% | 44,614 psi | 89% | 1722 fps | 89.4% |
| Shooters World Major Pistol*² | <<locked>> | 72% | 42,873 psi | 86% | 1699 fps | 94% |
| SNPE Vectan A0 | <<locked>> | 80% | 40,379 psi | 81% | 1506 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 72% | 40,451 psi | 81% | 1453 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 76% | 44,628 psi | 89% | 1526 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 76% | 45,020 psi | 90% | 1394 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 88% | 44,599 psi | 89% | 1624 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 76% | 42,786 psi | 86% | 1503 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 72% | 44,121 psi | 88% | 1703 fps | 99.9% |
| Somchem MP200² | <<locked>> | 72% | 42,801 psi | 86% | 1568 fps | 100% |
| Somchem MS200² | <<locked>> | 76% | 41,916 psi | 84% | 1532 fps | 100% |
| Somchem S221² | <<locked>> | 68% | 45,266 psi | 90% | 1696 fps | 98.7% |
| Vihtavuori 3N37² | <<locked>> | 76% | 41,089 psi | 82% | 1591 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 92% | 43,787 psi | 88% | 1690 fps | 97% |
| Vihtavuori N105 | <<locked>> | 96% | 45,179 psi | 90% | 1745 fps | 99.4% |
| Vihtavuori N320² | <<locked>> | 72% | 43,497 psi | 87% | 1453 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 37,318 psi | 75% | 1302 fps | 100% |
| Vihtavuori N330² | <<locked>> | 72% | 44,092 psi | 88% | 1519 fps | 100% |
| Vihtavuori N340² | <<locked>> | 76% | 41,901 psi | 84% | 1532 fps | 100% |
| Vihtavuori N350 | <<locked>> | 84% | 44,614 psi | 89% | 1631 fps | 100% |
| Winchester 231² | <<locked>> | 64% | 44,353 psi | 89% | 1503 fps | 100% |
| Winchester AutoComp | <<locked>> | 80% | 43,613 psi | 87% | 1519 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% | 29,399 psi | 59% | 1355 fps | 100% |
| Accurate No. 7*² | <<locked>> | 60% | 28,906 psi | 58% | 1457 fps | 87.2% |
| Accurate No. 9*² | <<locked>> | 76% | 37,623 psi | 75% | 1614 fps | 86.3% |
| Accurate Solo 1000² | <<locked>> | 60% | 29,109 psi | 58% | 1253 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 25,831 psi | 52% | 1253 fps | 100% |
| Accurate TCM*² | <<locked>> | 76% | 37,550 psi | 75% | 1608 fps | 87.7% |
| ADI AP 100*² | 3.7 gr | 60% | 18,014 psi | 36% | 1158 fps | 88.8% |
| ADI AP 70N² | <<locked>> | 60% | 37,782 psi | 76% | 1444 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 30,110 psi | 60% | 1171 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 28,500 psi | 57% | 1175 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 29,124 psi | 58% | 1220 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 32,271 psi | 64% | 1312 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 28,021 psi | 56% | 1276 fps | 100% |
| Alliant BLUE DOT*² | <<locked>> | 76% | 27,354 psi | 55% | 1414 fps | 85.1% |
| Alliant BULLSEYE² | <<locked>> | 60% | 33,083 psi | 66% | 1434 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 28,863 psi | 58% | 1260 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 20,320 psi | 41% | 1188 fps | 100% |
| Alliant POWER PISTOL*² | <<locked>> | 60% | 26,469 psi | 53% | 1391 fps | 94% |
| Alliant RED DOT² | <<locked>> | 60% | 28,369 psi | 57% | 1224 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 37,144 psi | 74% | 1499 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 27,253 psi | 54% | 1335 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 28,123 psi | 56% | 1243 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 19,841 psi | 40% | 1102 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 31,401 psi | 63% | 1309 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 29,878 psi | 60% | 1329 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 24,671 psi | 49% | 1112 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 38,406 psi | 77% | 1558 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 10,573 psi | 21% | 817 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 31,575 psi | 63% | 1352 fps | 100% |
| Lovex D037.1*² | <<locked>> | 60% | 28,906 psi | 58% | 1457 fps | 87.2% |
| Lovex D037.2*² | <<locked>> | 76% | 38,928 psi | 78% | 1634 fps | 86.9% |
| Lovex S011² | <<locked>> | 60% | 37,101 psi | 74% | 1401 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 31,908 psi | 64% | 1381 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 24,801 psi | 50% | 1230 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 28,021 psi | 56% | 1276 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 27,470 psi | 55% | 1253 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 29,979 psi | 60% | 1273 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 32,895 psi | 66% | 1266 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 36,927 psi | 74% | 1499 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 35,215 psi | 70% | 1365 fps | 100% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 10,631 psi | 21% | 840 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 25,353 psi | 51% | 1299 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 60% | 24,584 psi | 49% | 1352 fps | 87% |
| Rottweil P 801² | <<locked>> | 60% | 38,856 psi | 78% | 1385 fps | 100% |
| Rottweil P 806² | <<locked>> | 60% | 22,191 psi | 44% | 1312 fps | 96.2% |
| Shooters World Heavy Pistol*² | <<locked>> | 76% | 38,928 psi | 78% | 1634 fps | 86.9% |
| Shooters World Major Pistol*² | <<locked>> | 60% | 28,906 psi | 58% | 1457 fps | 87.2% |
| SNPE Vectan A0² | <<locked>> | 60% | 25,048 psi | 50% | 1266 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 30,284 psi | 61% | 1312 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 29,544 psi | 59% | 1322 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 31,502 psi | 63% | 1220 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 22,060 psi | 44% | 1243 fps | 97.1% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 28,950 psi | 58% | 1309 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 31,038 psi | 62% | 1490 fps | 97.7% |
| Somchem MP200² | <<locked>> | 60% | 30,777 psi | 62% | 1394 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 27,079 psi | 54% | 1309 fps | 100% |
| Somchem S221² | <<locked>> | 60% | 35,491 psi | 71% | 1549 fps | 96.3% |
| Vihtavuori 3N37² | <<locked>> | 60% | 25,193 psi | 50% | 1325 fps | 99% |
| Vihtavuori 3N38*² | 4.9 gr | 68% | 22,960 psi | 46% | 1309 fps | 86.8% |
| Vihtavuori N105*² | 4.8 gr | 68% | 19,522 psi | 39% | 1266 fps | 87.4% |
| Vihtavuori N320² | <<locked>> | 60% | 31,111 psi | 62% | 1293 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 17,492 psi | 35% | 988 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 32,097 psi | 64% | 1362 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 28,007 psi | 56% | 1329 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 22,539 psi | 45% | 1266 fps | 98.3% |
| Winchester 231² | <<locked>> | 60% | 39,175 psi | 78% | 1444 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 25,991 psi | 52% | 1266 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 13 powders for 5.7 x 28 loaded with the .224 | 50gr | Speer TNT. Vihtavuori N105 delivers the highest muzzle velocity at 1,745 fps; across all powders the maximum-charge window runs from 1,083 fps to 1,745 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 13 of the 13 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (345 MPa), the top charges use 41–90 %, leaving at least 10 % headroom. The 50.0 gr projectile in 0.224" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. 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. Vihtavuori 3N38, Vihtavuori N105, ADI AP 100 rank at the top here: for 5.7 x 28 with the .224 | 50gr | Speer TNT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant BLUE DOT burn incompletely and react more sensitively to barrel length and temperature. Hodgdon TrailBoss, ReloadSwiss RS 14 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.