Load data for 5.7 x 28 + .224 | 55gr | Nosler Varmageddon

5.7 x 28 cartridge drawing
Nosler logo

Load Specifications

Bullet Manufacturer:Nosler
Bullet Weight:55 gr
Bullet Diameter:0.224"
Bullet Length:<<locked>>
Case Length (l3):1.134"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:12.34 Grains of Water
Primer Size:Small Pistol (SP)
Barrel Length:4.8"
Max. allowed Pressure:50,038 psi
Recommended Twist Rate:1:10.5

Load data in caliber 5.7 x 28 with .224 | 55gr | Nosler Varmageddon bullet and 135 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.

A valid access license is required to use the Personalized Load Calculator.

You can find more information in our FAQ: How can I use the Personalized Load Calculator?

Max Load - Barrel Length: 4.8"

PowderChargeFRMaxP%V(0)z
Accurate No. 2²<<locked>>72%42,554 psi85%1440 fps100%
Accurate No. 2²<<locked>>72%42,163 psi84%1447 fps100%
Accurate No. 7*²<<locked>>72%42,670 psi85%1601 fps94.8%
Accurate No. 7²<<locked>>72%43,221 psi86%1614 fps95.3%
Accurate No. 9*<<locked>>80%42,322 psi85%1591 fps89.5%
Accurate No. 9*<<locked>>80%42,598 psi85%1604 fps90%
Accurate Solo 1000²<<locked>>76%42,105 psi84%1335 fps100%
Accurate Solo 1000²<<locked>>76%41,989 psi84%1339 fps100%
Accurate Solo 1250<<locked>>80%44,121 psi88%1411 fps100%
Accurate Solo 1250<<locked>>80%43,729 psi87%1411 fps100%
Accurate TCM*<<locked>>80%42,047 psi84%1581 fps90.8%
Accurate TCM*<<locked>>80%43,888 psi88%1617 fps91.8%
ADI AP 100<<locked>>92%40,161 psi80%1512 fps99.6%
ADI AP 100<<locked>>92%41,089 psi82%1532 fps99.8%
ADI AP 70N²<<locked>>68%45,281 psi90%1434 fps100%
ADI AP 70N²<<locked>>64%41,191 psi82%1394 fps100%
ADI APS 350²<<locked>>76%41,191 psi82%1227 fps100%
ADI APS 350²<<locked>>76%43,236 psi86%1257 fps100%
ADI APS 450<<locked>>80%44,860 psi90%1296 fps100%
ADI APS 450<<locked>>80%44,599 psi89%1299 fps100%
ADI AS 30<<locked>>80%44,077 psi88%1322 fps100%
ADI AS 30²<<locked>>76%42,018 psi84%1309 fps100%
ADI AS 50N²<<locked>>72%42,105 psi84%1345 fps100%
ADI AS 50N²<<locked>>72%42,003 psi84%1352 fps100%
Alliant 2400*<<locked>>92%44,512 psi89%1644 fps87.4%
Alliant 2400*<<locked>>92%44,614 psi89%1650 fps87.8%
Alliant BE-86²<<locked>>76%40,335 psi81%1352 fps100%
Alliant BE-86²<<locked>>76%41,582 psi83%1375 fps100%
Alliant BLUE DOT*<<locked>>96%44,353 psi89%1617 fps94.5%
Alliant BLUE DOT*<<locked>>92%41,698 psi83%1588 fps93.8%
Alliant BULLSEYE²<<locked>>68%39,740 psi79%1434 fps100%
Alliant BULLSEYE²<<locked>>68%41,568 psi83%1463 fps100%
Alliant Green Dot²<<locked>>76%41,524 psi83%1342 fps100%
Alliant Green Dot²<<locked>>76%43,366 psi87%1371 fps100%
Alliant Herco<<locked>>92%42,641 psi85%1467 fps100%
Alliant Herco<<locked>>92%43,685 psi87%1483 fps100%
Alliant POWER PISTOL²<<locked>>76%41,727 psi83%1575 fps99.5%
Alliant POWER PISTOL²<<locked>>76%42,859 psi86%1594 fps99.7%
Alliant RED DOT<<locked>>80%43,120 psi86%1332 fps100%
Alliant RED DOT<<locked>>80%45,194 psi90%1362 fps100%
Alliant Sport Pistol²<<locked>>64%40,857 psi82%1450 fps100%
Alliant Sport Pistol²<<locked>>64%42,540 psi85%1480 fps100%
Alliant UNIQUE<<locked>>80%44,976 psi90%1496 fps100%
Alliant UNIQUE<<locked>>80%44,614 psi89%1499 fps100%
Baschieri & Pellagri 100²<<locked>>76%43,207 psi86%1345 fps100%
Baschieri & Pellagri 100²<<locked>>76%42,917 psi86%1352 fps100%
Baschieri & Pellagri 102 Pistol<<locked>>92%41,568 psi83%1335 fps100%
Baschieri & Pellagri 102 Pistol<<locked>>96%44,628 psi89%1375 fps100%
Baschieri & Pellagri 103 Pistol²<<locked>>72%44,454 psi89%1375 fps100%
Baschieri & Pellagri 103 Pistol²<<locked>>72%45,136 psi90%1388 fps100%
Hodgdon Clays²<<locked>>76%42,047 psi84%1247 fps100%
Hodgdon Clays<<locked>>88%42,931 psi86%1280 fps100%
Hodgdon HS-6²<<locked>>64%42,351 psi85%1512 fps100%
Hodgdon HS-6²<<locked>>64%43,279 psi86%1532 fps100%
Hodgdon TrailBossᴾ<<locked>>100%21,132 psi42%1010 fps100%
Hodgdon TrailBossᴾ<<locked>>100%21,379 psi43%1020 fps100%
Hodgdon Universal²<<locked>>76%45,281 psi90%1434 fps100%
Hodgdon Universal²<<locked>>72%43,134 psi86%1417 fps100%
Lovex D037.1*²<<locked>>72%42,670 psi85%1601 fps94.8%
Lovex D037.1²<<locked>>72%43,221 psi86%1614 fps95.3%
Lovex D037.2*<<locked>>80%42,322 psi85%1591 fps89.5%
Lovex D037.2*<<locked>>80%44,179 psi88%1627 fps90.6%
Lovex S011²<<locked>>68%44,788 psi90%1394 fps100%
Lovex S011²<<locked>>64%42,409 psi85%1375 fps100%
Lovex S020²<<locked>>72%42,917 psi86%1427 fps100%
Lovex S020²<<locked>>72%44,643 psi89%1453 fps100%
Maxam CSB 1<<locked>>84%43,497 psi87%1398 fps100%
Maxam CSB 1<<locked>>84%45,005 psi90%1424 fps100%
Maxam CSB 2<<locked>>80%44,512 psi89%1401 fps100%
Maxam CSB 2²<<locked>>76%42,337 psi85%1385 fps100%
Maxam CSB 3<<locked>>80%43,743 psi87%1378 fps100%
Maxam CSB 3²<<locked>>76%41,582 psi83%1362 fps100%
Maxam CSB 4²<<locked>>76%43,279 psi86%1352 fps100%
Maxam CSB 4²<<locked>>76%43,120 psi86%1358 fps100%
Maxam CSB 5²<<locked>>76%44,991 psi90%1322 fps100%
Maxam CSB 5²<<locked>>72%42,873 psi86%1309 fps100%
Ramshot Enforcer*<<locked>>92%43,874 psi88%1640 fps88.2%
Ramshot Silhouette²<<locked>>64%41,495 psi83%1463 fps100%
Ramshot Silhouette²<<locked>>64%42,728 psi85%1483 fps100%
ReloadSwiss RS 12²<<locked>>68%43,947 psi88%1378 fps100%
ReloadSwiss RS 12²<<locked>>68%43,830 psi88%1381 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%20,581 psi41%1033 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%20,827 psi42%1043 fps100%
ReloadSwiss RS 20<<locked>>80%42,859 psi86%1460 fps100%
ReloadSwiss RS 20<<locked>>80%44,353 psi89%1483 fps100%
ReloadSwiss RS 24<<locked>>80%43,613 psi87%1601 fps97%
ReloadSwiss RS 24<<locked>>80%44,280 psi88%1621 fps97.4%
Rottweil P 801²<<locked>>64%42,293 psi85%1329 fps100%
Rottweil P 801²<<locked>>64%44,034 psi88%1355 fps100%
Rottweil P 806<<locked>>80%41,698 psi83%1562 fps100%
Rottweil P 806<<locked>>80%42,148 psi84%1575 fps100%
Shooters World Heavy Pistol*<<locked>>80%42,322 psi85%1591 fps89.5%
Shooters World Heavy Pistol*<<locked>>80%44,179 psi88%1627 fps90.6%
Shooters World Major Pistol*²<<locked>>72%42,670 psi85%1601 fps94.8%
Shooters World Major Pistol²<<locked>>72%43,221 psi86%1614 fps95.3%
SNPE Vectan A0<<locked>>84%45,208 psi90%1460 fps100%
SNPE Vectan A0<<locked>>84%44,657 psi89%1463 fps100%
SNPE Vectan A1²<<locked>>76%45,078 psi90%1407 fps100%
SNPE Vectan A1²<<locked>>76%44,527 psi89%1407 fps100%
SNPE Vectan BA 9²<<locked>>76%44,338 psi89%1421 fps100%
SNPE Vectan BA 9²<<locked>>76%43,830 psi88%1421 fps100%
SNPE Vectan BA10²<<locked>>76%44,846 psi90%1296 fps100%
SNPE Vectan BA10²<<locked>>72%42,627 psi85%1280 fps100%
SNPE Vectan BA7 1/2<<locked>>88%44,280 psi88%1516 fps100%
SNPE Vectan BA7 1/2<<locked>>88%45,121 psi90%1535 fps100%
SNPE Vectan BA9 1/2²<<locked>>76%43,627 psi87%1414 fps100%
SNPE Vectan BA9 1/2²<<locked>>76%43,279 psi86%1417 fps100%
SNPE Vectan SP 2²<<locked>>72%43,482 psi87%1594 fps100%
SNPE Vectan SP 2²<<locked>>72%44,643 psi89%1611 fps100%
Somchem MP200²<<locked>>72%42,467 psi85%1463 fps100%
Somchem MP200²<<locked>>72%43,874 psi88%1486 fps100%
Somchem MS200<<locked>>80%44,860 psi90%1463 fps100%
Somchem MS200²<<locked>>76%42,554 psi85%1447 fps100%
Somchem S221²<<locked>>68%44,164 psi88%1581 fps98.9%
Somchem S221²<<locked>>64%40,132 psi80%1532 fps98.3%
Vihtavuori 3N37²<<locked>>76%40,001 psi80%1480 fps100%
Vihtavuori 3N37²<<locked>>76%41,147 psi82%1496 fps100%
Vihtavuori 3N38<<locked>>92%42,960 psi86%1578 fps97.4%
Vihtavuori 3N38<<locked>>92%43,671 psi87%1594 fps97.8%
Vihtavuori N105<<locked>>96%44,512 psi89%1634 fps99.7%
Vihtavuori N105<<locked>>96%45,281 psi90%1650 fps99.8%
Vihtavuori N320²<<locked>>72%43,366 psi87%1352 fps100%
Vihtavuori N320²<<locked>>72%43,279 psi86%1358 fps100%
Vihtavuori N32C Tin Starᴾ<<locked>>100%37,550 psi75%1217 fps100%
Vihtavuori N32C Tin Starᴾ<<locked>>100%37,362 psi75%1220 fps100%
Vihtavuori N330²<<locked>>72%42,917 psi86%1404 fps100%
Vihtavuori N330²<<locked>>72%44,657 psi89%1430 fps100%
Vihtavuori N340²<<locked>>76%41,118 psi82%1424 fps100%
Vihtavuori N340²<<locked>>76%42,714 psi85%1450 fps100%
Vihtavuori N350<<locked>>84%43,598 psi87%1516 fps100%
Vihtavuori N350<<locked>>84%44,759 psi89%1535 fps100%
Winchester 231²<<locked>>64%43,221 psi86%1391 fps100%
Winchester 231²<<locked>>64%44,788 psi90%1414 fps100%
Winchester AutoComp <<locked>>80%43,816 psi88%1424 fps100%
Winchester AutoComp <<locked>>80%43,149 psi86%1424 fps100%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 4.8"

PowderChargeFRMaxP%V(0)z
Accurate No. 2²<<locked>>60%28,732 psi57%1257 fps100%
Accurate No. 2²<<locked>>60%28,935 psi58%1270 fps100%
Accurate No. 7*²<<locked>>60%27,499 psi55%1348 fps87.7%
Accurate No. 7*²<<locked>>60%28,311 psi57%1368 fps88.4%
Accurate No. 9*²<<locked>>76%36,419 psi73%1503 fps86.8%
Accurate No. 9*²<<locked>>72%32,938 psi66%1453 fps85.3%
Accurate Solo 1000²<<locked>>60%29,138 psi58%1171 fps100%
Accurate Solo 1000²<<locked>>60%29,486 psi59%1181 fps100%
Accurate Solo 1250²<<locked>>60%26,121 psi52%1178 fps100%
Accurate Solo 1250²<<locked>>60%26,455 psi53%1188 fps100%
Accurate TCM*²<<locked>>72%32,082 psi64%1427 fps85.9%
Accurate TCM*²<<locked>>72%33,895 psi68%1463 fps87.3%
ADI AP 100*²3.5 gr60%17,709 psi35%1086 fps89.8%
ADI AP 100*²3.5 gr60%18,739 psi37%1119 fps91%
ADI AP 70N²<<locked>>60%37,666 psi75%1345 fps100%
ADI AP 70N²<<locked>>60%37,637 psi75%1352 fps100%
ADI APS 350²<<locked>>60%29,515 psi59%1079 fps100%
ADI APS 350²<<locked>>60%29,921 psi60%1093 fps100%
ADI APS 450²<<locked>>60%28,268 psi56%1093 fps100%
ADI APS 450²<<locked>>60%28,631 psi57%1102 fps100%
ADI AS 30²<<locked>>60%28,906 psi58%1135 fps100%
ADI AS 30²<<locked>>60%29,283 psi59%1145 fps100%
ADI AS 50N²<<locked>>60%30,908 psi62%1204 fps100%
ADI AS 50N²<<locked>>60%31,227 psi62%1214 fps100%
Alliant 2400*<<locked>>88%39,842 psi80%1572 fps85.3%
Alliant 2400*<<locked>>88%40,074 psi80%1585 fps85.8%
Alliant BE-86²<<locked>>60%27,760 psi55%1188 fps100%
Alliant BE-86²<<locked>>60%27,804 psi56%1194 fps100%
Alliant BLUE DOT*²<<locked>>76%26,832 psi54%1325 fps86%
Alliant BLUE DOT*²<<locked>>76%27,630 psi55%1345 fps86.8%
Alliant BULLSEYE²<<locked>>60%32,416 psi65%1332 fps100%
Alliant BULLSEYE²<<locked>>60%32,605 psi65%1339 fps100%
Alliant Green Dot²<<locked>>60%28,906 psi58%1178 fps100%
Alliant Green Dot²<<locked>>60%29,240 psi58%1188 fps100%
Alliant Herco²<<locked>>60%19,638 psi39%1099 fps100%
Alliant Herco²<<locked>>60%20,900 psi42%1132 fps100%
Alliant POWER PISTOL*²<<locked>>60%25,541 psi51%1296 fps94.6%
Alliant POWER PISTOL²<<locked>>60%26,774 psi54%1325 fps95.4%
Alliant RED DOT²<<locked>>60%27,905 psi56%1135 fps100%
Alliant RED DOT²<<locked>>60%28,398 psi57%1148 fps100%
Alliant Sport Pistol²<<locked>>60%37,115 psi74%1404 fps100%
Alliant Sport Pistol²<<locked>>60%37,101 psi74%1407 fps100%
Alliant UNIQUE²<<locked>>60%26,556 psi53%1240 fps100%
Alliant UNIQUE²<<locked>>60%28,166 psi56%1273 fps100%
Baschieri & Pellagri 100²<<locked>>60%28,500 psi57%1168 fps100%
Baschieri & Pellagri 100²<<locked>>60%28,718 psi57%1175 fps100%
Baschieri & Pellagri 102 Pistol²<<locked>>60%18,956 psi38%1014 fps100%
Baschieri & Pellagri 102 Pistol²<<locked>>60%20,247 psi40%1043 fps100%
Baschieri & Pellagri 103 Pistol²<<locked>>60%31,024 psi62%1220 fps100%
Baschieri & Pellagri 103 Pistol²<<locked>>60%32,024 psi64%1237 fps100%
Hodgdon Clays²<<locked>>60%30,081 psi60%1099 fps100%
Hodgdon Clays²<<locked>>60%24,540 psi49%1040 fps100%
Hodgdon HS-6²<<locked>>60%37,434 psi75%1447 fps100%
Hodgdon HS-6²<<locked>>60%38,479 psi77%1470 fps100%
Hodgdon TrailBoss²<<locked>>60%10,414 psi21%758 fps100%
Hodgdon TrailBoss²<<locked>>60%10,849 psi22%778 fps100%
Hodgdon Universal²<<locked>>60%30,821 psi62%1253 fps100%
Hodgdon Universal²<<locked>>60%31,024 psi62%1263 fps100%
Lovex D037.1*²<<locked>>60%27,499 psi55%1348 fps87.7%
Lovex D037.1*²<<locked>>60%28,311 psi57%1368 fps88.4%
Lovex D037.2*²<<locked>>76%37,811 psi76%1526 fps87.5%
Lovex D037.2*²<<locked>>72%34,142 psi68%1470 fps85.9%
Lovex S011²<<locked>>60%36,651 psi73%1299 fps100%
Lovex S011²<<locked>>60%36,608 psi73%1309 fps100%
Lovex S020²<<locked>>60%31,618 psi63%1286 fps100%
Lovex S020²<<locked>>60%31,705 psi63%1296 fps100%
Maxam CSB 1²<<locked>>60%25,092 psi50%1155 fps100%
Maxam CSB 1²<<locked>>60%25,367 psi51%1165 fps100%
Maxam CSB 2²<<locked>>60%28,529 psi57%1201 fps100%
Maxam CSB 2²<<locked>>60%28,790 psi58%1207 fps100%
Maxam CSB 3²<<locked>>60%27,659 psi55%1171 fps100%
Maxam CSB 3²<<locked>>60%27,949 psi56%1184 fps100%
Maxam CSB 4²<<locked>>60%28,514 psi57%1165 fps100%
Maxam CSB 4²<<locked>>60%30,443 psi61%1201 fps100%
Maxam CSB 5²<<locked>>60%31,169 psi62%1158 fps100%
Maxam CSB 5²<<locked>>60%31,546 psi63%1168 fps100%
Ramshot Enforcer*<<locked>>88%39,059 psi78%1572 fps86.1%
Ramshot Silhouette²<<locked>>60%36,419 psi73%1398 fps100%
Ramshot Silhouette²<<locked>>60%37,681 psi75%1421 fps100%
ReloadSwiss RS 12²<<locked>>60%34,534 psi69%1266 fps100%
ReloadSwiss RS 12²<<locked>>60%36,434 psi73%1296 fps100%
ReloadSwiss RS 14²<<locked>>60%10,544 psi21%784 fps100%
ReloadSwiss RS 14²<<locked>>60%10,240 psi20%774 fps100%
ReloadSwiss RS 20²<<locked>>60%26,121 psi52%1234 fps100%
ReloadSwiss RS 20²<<locked>>60%26,353 psi53%1240 fps100%
ReloadSwiss RS 24*²<<locked>>60%24,410 psi49%1273 fps88.1%
ReloadSwiss RS 24*²<<locked>>60%24,279 psi49%1273 fps88.3%
Rottweil P 801²<<locked>>60%38,508 psi77%1289 fps100%
Rottweil P 801²<<locked>>60%38,493 psi77%1293 fps100%
Rottweil P 806²<<locked>>60%22,350 psi45%1243 fps97.2%
Rottweil P 806²<<locked>>60%22,307 psi45%1247 fps97.3%
Shooters World Heavy Pistol*²<<locked>>76%37,811 psi76%1526 fps87.5%
Shooters World Heavy Pistol*²<<locked>>72%34,142 psi68%1470 fps85.9%
Shooters World Major Pistol*²<<locked>>60%27,499 psi55%1348 fps87.7%
Shooters World Major Pistol*²<<locked>>60%28,311 psi57%1368 fps88.4%
SNPE Vectan A0²<<locked>>60%24,381 psi49%1175 fps100%
SNPE Vectan A0²<<locked>>60%24,569 psi49%1181 fps100%
SNPE Vectan A1²<<locked>>60%30,052 psi60%1224 fps100%
SNPE Vectan A1²<<locked>>60%30,066 psi60%1227 fps100%
SNPE Vectan BA 9²<<locked>>60%29,269 psi58%1230 fps100%
SNPE Vectan BA 9²<<locked>>60%29,298 psi59%1237 fps100%
SNPE Vectan BA10²<<locked>>60%31,647 psi63%1142 fps100%
SNPE Vectan BA10²<<locked>>60%31,850 psi64%1152 fps100%
SNPE Vectan BA7 1/2²<<locked>>60%22,046 psi44%1168 fps97.8%
SNPE Vectan BA7 1/2²<<locked>>60%22,104 psi44%1175 fps98%
SNPE Vectan BA9 1/2²<<locked>>60%28,239 psi56%1214 fps100%
SNPE Vectan BA9 1/2²<<locked>>60%29,878 psi60%1247 fps100%
SNPE Vectan SP 2²<<locked>>60%30,589 psi61%1394 fps98.2%
SNPE Vectan SP 2²<<locked>>60%30,516 psi61%1398 fps98.3%
Somchem MP200²<<locked>>60%30,748 psi61%1306 fps100%
Somchem MP200²<<locked>>60%30,792 psi62%1312 fps100%
Somchem MS200²<<locked>>60%27,818 psi56%1237 fps100%
Somchem MS200²<<locked>>60%27,992 psi56%1247 fps100%
Somchem S221²<<locked>>60%34,954 psi70%1450 fps96.8%
Somchem S221²<<locked>>60%35,824 psi72%1467 fps97.2%
Vihtavuori 3N37²<<locked>>60%25,353 psi51%1250 fps99.4%
Vihtavuori 3N37²<<locked>>60%26,614 psi53%1280 fps99.7%
Vihtavuori 3N38*²4.3 gr64%19,870 psi40%1161 fps85.3%
Vihtavuori 3N38*²4.3 gr64%20,813 psi42%1191 fps86.5%
Vihtavuori N105*²4.2 gr64%16,636 psi33%1122 fps85.7%
Vihtavuori N105*²4.2 gr64%17,521 psi35%1152 fps87.1%
Vihtavuori N320²<<locked>>60%31,517 psi63%1211 fps100%
Vihtavuori N320²<<locked>>60%31,792 psi64%1220 fps100%
Vihtavuori N32C Tin Star²<<locked>>60%16,984 psi34%909 fps100%
Vihtavuori N32C Tin Star²<<locked>>60%17,390 psi35%922 fps100%
Vihtavuori N330²<<locked>>60%31,604 psi63%1266 fps100%
Vihtavuori N330²<<locked>>60%31,720 psi63%1273 fps100%
Vihtavuori N340²<<locked>>60%27,543 psi55%1237 fps100%
Vihtavuori N340²<<locked>>60%27,702 psi55%1247 fps100%
Vihtavuori N350²<<locked>>60%22,394 psi45%1191 fps98.8%
Vihtavuori N350²<<locked>>60%22,481 psi45%1194 fps98.9%
Winchester 231²<<locked>>60%39,421 psi79%1348 fps100%
Winchester 231²<<locked>>60%39,247 psi78%1355 fps100%
Winchester AutoComp ²<<locked>>60%25,730 psi51%1181 fps100%
Winchester AutoComp ²<<locked>>60%27,064 psi54%1211 fps100%

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.

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This overview compares 135 powders for 5.7 x 28 loaded with the .224 | 55gr | Nosler Varmageddon. Alliant 2400 delivers the highest muzzle velocity at 1,650 fps; across all powders the maximum-charge window runs from 1,010 fps to 1,650 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 58 of the 135 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 55.0 gr projectile in 0.224" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, 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 | Nosler Varmageddon 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 No. 9 burn incompletely and react more sensitively to barrel length and temperature. ADI AP 100, ADI AP 100, ADI APS 350 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.

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