I have found #9 to be fairly consistent over the years but not as much as W-231.
cast w/GC and cast bullets in the 18 bhn range.
If the MBC's 158 lswc is the action series I would work up from 12.0 gr of #9 with a CCI 500. You may find better accuracy with a SPP but for cold temperatures the mag primer maybe appropriate.Wanted to use mb 158swc w/o gc @ starting with 11.2 and woking my way up to about 11.6 out of Blackhawk 357.
If the MBC's 158 lswc is the action series I would work up from 12.0 gr of #9 with a CCI 500. You may find better accuracy with a SPP but for cold temperatures the mag primer maybe appropriate.
That's the same load I use, 12.2 grains under a 158 gr LSWC.AA9 is very much like 2400 IMO. Its finer in grain size and you use about 1.0 grain less to get equal pressure and velocity when compared to 2400. I've used it for my .357 mag and .41 mag, don't have a .44 or I probably would have used it there too. I also use 2400.
I really like AA9 with 158gr SWC hard cast. 12.2gr of AA9 send the 158gr LSWC out the muzzle at around 1,250 fps.
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Smith & Wesson M27-2 6.5” Barrel
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 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
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In my Redding M3 powder throw with the micro pistol meter AA#9 will throw accurately down to the last five charges in the hopperExcellent metering on this powder out of my old #55.
I have a 7.62x25mm was well.
Ramshot Enforcer is the same powder; smells the same, looks the same, and pressure sign thresholds match within a couple percent.
If AA powders were available locally I would have no problem using them. They have come a long way from years ago and all their powders seem to be very consistent now.area51 said:Any other comments on Accurate powders are most welcome.