There are three powders which perform very well in my 357's with cast bullets and jacketed bullets: 2400, AA#9 and W296/H110.
W296 and H110 are the exact same powder so buy by price.
You cannot down load H110, you can 2400. AA#9 is not recommended to cut loads.
I do not recommend Blue Dot, it leads horribly with cast bullets.
Code:
Smith & Wesson M27-2 6.5” Barrel
158 LSWC 13.5grs 2400 R-P cases Fed 100
4-Sep-05 T = 80 °F
Ave Vel = 1245
Std Dev = 22.49
ES = 97.26
High = 1285
Low = 1187
N = 32
158 LSWC 13.5grs 2400 R-P cases CCI primers
9-Oct-05 T = 64 °F
Ave Vel = 1273
Std Dev = 44.03
ES = 176.7
High = 1372
Low = 1195
N = 30
158 JHP 13.0 grs AA#9 R-P cases WSP
9-Oct-05 T = 64 °F
Ave Vel = 1156
Std Dev = 35.63
ES = 160.6
High = 1230
Low = 1069
N = 20
Very accurate
158 JHP (W/W) 14.0 grs AA#9 R-P cases WSP
9-Oct-05 T = 64 °F
Ave Vel = 1208
Std Dev = 27.65
ES = 89
High = 1255
Low = 1166
N = 24
Very accurate
158 JHP (W/W) 13.5 grains 2400 R-P cases WSP
5-Aug-06 T = 102 °F
Ave Vel = 1222
Std Dev = 26.45
ES = 72.12
High = 1262
Low = 1190
N = 5
158 LRN Valiant 12.0 grs AA#9 CCI500 Mixed cases
5-Aug-06 T = 104 °F
Ave Vel = 1278
Std Dev = 34.98
ES = 117.4
High = 1344
Low = 1226
N = 27
Accurate
158 LRN Valiant 12.5 grs AA#9 CCI500 3-D cases
5-Aug-06 T = 104 ° F
Ave Vel = 1348
Std Dev = 34.16
ES = 134.7
High = 1386
Low = 1251
N = 25
Very Accurate no leading
158 LRN Valiant 13.0 grs AA#9 CCI500 3-D cases
5-Aug-06 T = 104 °F
Ave Vel = 1360
Std Dev = 33.19
ES = 109.8
High = 1393
Low = 1284
N = 26
Very Accurate
158 JHP (W/W) 13.5 grains 2400 R-P cases WSP
5-Aug-06 T = 103 °F
Ave Vel = 1196
Std Dev = 26.58
ES = 87.17
High = 1244
Low = 1157
N = 10
accurate
158 LSWC Linotype 12.0 AA#9 Mixed cases CCI500
21 June 2008 T = 85 °F
Ave Vel = 1166
Std Dev = 99
ES = 251.8
High = 1245
Low = 993.3
N = 6
No leading
158 LSWC Linotype 15.5 W296 Zero Cases CCI500
21 June 2008 T = 85 °F
Ave Vel = 1282
Std Dev = 35
ES = 128.1
High = 1325
Low = 1197
N = 12
No leading, no extraction issues, heavier recoil than AA#9 load
158 LSWC Linotype 15.5 W296 3D Cases CCI500
14 Oct 2008 T = 80 °F
Ave Vel = 1260
Std Dev = 34
ES = 160.5
High = 1315
Low = 1154
N = 18
