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Warning: Bullet selections are specific, and loads are not valid with substitutions of different bullets of the same weight. Variations in bullet length will alter net case capacity,  pressure and velocity. Primer selection is specific and primer types are not interchangeable. These are maximum loads in my firearms and may easily be excessive in others. All loads should be reduced by 10%,  and developed following safe handloading practices as represented in established reloading manuals produced by component manufacturers. Presentation of these loads does not constitute a solicitation for their use, nor a recommendation.
 

Cartridge: 357 SIG

  Firearm: SIG 229   Max COL: 1.140″
  Barrel: 3.9″   Reloading Dies: RCBS
  Max case length: .865″   Group distance: 25 yards from rest
 Note: Max COL is critical in SIG firearms

Bullet Type Bullet
Weight
Bullet
Diameter
C.O.L. Net Water
Capacity
Powder
Type
Charge Primer
Type
Muzzle
Velocity
Muzzle
Energy
Group
Size
Hornady HP-XTP 115 .355″ 1.140″ 13.7 Power Pistol 10.0 CCI 500 1510 582 1.6
Hornady HP-XTP 115 .355″ 1.140″ 13.7 Blue Dot 11.3 CCI 500 1350 466 1.9
Hornady HP-XTP 115 .355″ 1.140″ 13.7 Unique 8.0 CCI 500 1415 511 1.5
Hornady HP-XTP 115 .355″ 1.140″ 13.7 AA #5 9.5 CCI 500 1345 462 1.9
Speer Gold Dot 115 .355″ 1.140″ 12.8 Power Pistol 9.6 CCI 500 1510 582 1.7
Speer Gold Dot 115 .355″ 1.140″ 12.8 Bullseye 6.8 CCI 500 1400 501 2.0
Speer Gold Dot 115 .355″ 1.140″ 12.8 Unique 8.0 CCI 500 1460 544 2.1
Nosler JHP 115 .355″ 1.140″ 13.8 AA #7 11.6 CCI 500 1358 471 2.5
Nosler JHP 115 .355″ 1.140″ 13.8 AA #9 14.0 CCI 500 1444 533 2.5
Nosler JHP 115 .355″ 1.140″ 13.8 Blue Dot 11.6 CCI 500 1431 523 2.0
Nosler JHP 115 .355″ 1.140″ 13.8 Power Pistol 10.0 CCI 500 1500 575 2.5
Nosler JHP 115 .355″ 1.140″ 13.8 True Blue 9.9 CCI 500 1480 559 2.0
Sierra Sports Master JHP 115 .355″ 1.135″ 13.6 AA #7 11.5 CCI 500 1390 493 2.0
Sierra Sports Master JHP 115 .355″ 1.135″ 13.6 AA #9 14.0 CCI 500 1423 517 1.8
Sierra Sports Master JHP 115 .355″ 1.135″ 13.6 Blue Dot 12.0 CCI 500 1470 552 1.8
Sierra Sports Master JHP 115 .355″ 1.135″ 13.6 Power Pistol 9.6 CCI 500 1500 575 2.0
Sierra Sports Master JHP 115 .355″ 1.135″ 13.6 True Blue 9.4 CCI 500 1415 511 1.5
Winchester JHP 115 .355″ 1.140″ 13.0 AA #7 11.6 CCI 500 1430 522 2.2
Winchester JHP 115 .355″ 1.140″ 13.0 AA #9 13.9 CCI 500 1480 559 2.7
Winchester JHP 115 .355″ 1.140″ 13.0 Blue Dot 12.0 CCI 500 1525 594 1.5
Winchester JHP 115 .355″ 1.140″ 13.0 Power Pistol 9.4 CCI 500 1490 567 2.0
Winchester JHP 115 .355″ 1.140″ 13.0 True Blue 9.4 CCI 500 1455 541 2.0
Hornady HP-XTP 124 .355″ 1.140″ 12.0 Power Pistol 9.0 CCI 500 1390 532 1.6
Hornady HP-XTP 124 .355″ 1.140″ 12.0 Unique 7.5 CCI 500 1390 532 1.2
Hornady HP-XTP 124 .355″ 1.140″ 12.0 Universal 6.0 Fed 100 1210 403 2.2
Hornady HP-XTP 124 .355″ 1.140″ 12.0 True Blue 8.5 Fed 100 1340 495 2.0
Hornady HP-XTP 124 .355″ 1.140″ 12.0 N330 6.8 Fed 100 1300 465 2.6
Hornady HP-XTP 124 .355″ 1.140″ 12.0 N340 7.2 Fed 100 1330 487 1.9
Hornady HP-XTP 124 .355″ 1.140″ 12.0 AA #7 12.0 CCI 500 1392 534 2.0
Hornady HP-XTP 124 .355″ 1.140″ 12.0 AA #9 13.4 CCI 400 1400 540 1.5
Hornady HP-XTP 124 .355″ 1.140″ 12.0 Blue Dot 11.0 CCI 500 1426 560 1.5
Remington JHP 124 .355″ 1.140″ 12.3 Power Pistol 9.1 CCI 500 1460 587 1.4
Remington JHP 124 .355″ 1.140″ 12.3 Unique 7.4 CCI 500 1360 509 1.4
Remington JHP 124 .355″ 1.140″ 12.3 True Blue 9.0 Fed 100 1390 532 2.0
Remington JHP 124 .355″ 1.140″ 12.3 N330 7.0 Fed 100 1325 484 1.9
Remington JHP 124 .355″ 1.140″ 12.3 N340 7.3 Fed 100 1330 487 2.3
Speer Gold Dot 125 .355″ 1.140″ 13.3 Power Pistol 9.3 CCI 500 1440 576 0.9
Speer Gold Dot 125 .355″ 1.140″ 13.3 Blue Dot 11.5 CCI 500 1430 568 1.5
Speer Gold Dot 125 .355″ 1.140″ 13.3 Unique 7.8 CCI 500 1380 529 1.1
Speer Gold Dot 125 .355″ 1.140″ 13.3 True Blue 9.5 CCI 500 1410 552 1.4
Speer Gold Dot 125 .355″ 1.140″ 13.3 N340 7.6 Fed 100 1340 499 1.8
Speer Gold Dot 125 .355″ 1.140″ 13.3 AA #7 11.2 CCI 500 1300 469 2.0
Speer Gold Dot 125 .355″ 1.140″ 13.3 AA #9 13.1 CCI 500 1390 536 1.0
Sierra Sports Master JHP 125 .355″ 1.140″ 12.9 Power Pistol 9.1 CCI 500 1412 554 2.1
Sierra Sports Master JHP 125 .355″ 1.140″ 12.9 Blue Dot 11.0 CCI 500 1355 510 2.8
Sierra Sports Master JHP 125 .355″ 1.140″ 12.9 Universal 6.5 CCI 500 1250 434 2.8
Sierra Sports Master JHP 125 .355″ 1.140″ 12.9 AA #9 14.0 CCI 500 1420 560 2.4
Sierra Sports Master JHP 125 .355″ 1.140″ 12.9 True Blue 10.8 CCI 500 1490 616 2.0
Remington JHP-J 147 .355″ 1.140″ 11.2 Power Pistol 7.8 CCI 500 1290 543 2.2
Remington JHP-J 147 .355″ 1.140″ 11.2 Blue Dot 9.5 CCI 500 1285 539 1.4
Remington JHP-J 147 .355″ 1.140″ 11.2 2400 10.8 CCI 500 1272 528 3.2
Remington JHP-J 147 .355″ 1.140″ 11.2 AA #7 9.8 CCI 500 1240 502 2.4
Remington JHP-J 147 .355″ 1.140″ 11.2 AA #9 11.0 CCI 500 1250 510 1.5
Remington JHP-J 147 .355″ 1.140″ 11.2 True Blue 7.5 CCI 500 1200 470 2.1
Remington JHP-J 147 .355″ 1.140″ 11.2 Enforcer 11.7 CCI 500 1235 498 2.8
Hornady HPBT-XTP 147 .355″ 1.140″ 10.2 Power Pistol 7.6 CCI 500 1280 535 1.3
Hornady HPBT-XTP 147 .355″ 1.140″ 10.2 Unique 6.3 CCI 500 1125 413 1.2
Hornady HPBT-XTP 147 .355″ 1.140″ 10.2 True Blue 7.5 Fed 100 1225 490 2.3
Hornady HPBT-XTP 147 .355″ 1.140″ 10.2 N340 6.1 Fed 100 1175 451 1.9
Speer Gold Dot 147 .355″ 1.135″ 10.4 Power Pistol 7.6 CCI 500 1225 490 1.5
Speer Gold Dot 147 .355″ 1.135″ 10.4 Unique 6.6 CCI 500 1220 470 1.7
Speer Gold Dot 147 .355″ 1.135″ 10.4 AA #9 12.0 CCI 500 1195 466 1.1
Speer Gold Dot 147 .355″ 1.135″ 10.4 True Blue 7.6 Fed 100 1220 486 2.0
Speer Gold Dot 147 .355″ 1.135″ 10.4 N340 6.2 Fed 100 1180 455 2.2