Shadow9mm, have you ever used A#9?
What do you mean by 'perform well'?
By perform well, I mean it will ignite and burn, however it will most likely not fully burn or burn cleanly, and provide poor velocity.
No, but I have been researching #9 for use in 357mag and 44mag for bit now. Going to buy a pound of that and 2400 to start testing with next time I get to the gun shop, hopefully Saturday.
#9 is considerably slower than #7 but not quite into H110 territory. Its slower than 2400 and N105. Consensus was divided as to whether or not #9 needed, or performed better with magnum primers.
Here is western powders load data. They only have data for 38 super +P, which does not include #9 or 4100, and on page 5 they list suitable powder for 38 super.
https://accuratepowder.com/wp-content/uploads/2010/09/WesternLoadGuide1-2016_Web.pdf
Suitable for 38 super per western in their lineup.
Ramshot ZIP
#2
Ramshot Silhouette
Ramshot true blue
#5
#7
#9 and 4100 are listed but not marked as suitable for 38 super on westerns chart.
Data I could find for #9 in 38 super, Hopefully this is a help.
Lee 2021
lists no loads for 38 super with #9
Lee 2007, a bit out dated
100g jacketed with #9, Start 12.2, max 13.5
115g jacketed with #9, Start 11.7, max 13.0
115g lead with #9, Start 11.3, max 12.5
124g jacketed with #9, Start 11.3, max 12.5
125g lead with #9, Start 10.8, max 12.0
130g jacketed with #9, start 10.7, max 11.9
130g lead With #9, start 10.4, max 11.5
130g plated With #9, start 9.9, max 11.0
140g lead with #9, start 9.9, max 11.0
145g lead with #9, start 9.5, max 10.5
147g jacketed with #9, start 9.2 max 10.2
150g jacketed with #9, start 8.7, max 9.7
151g plated with #9, start 7.7, max 8.6
158g jacketed with #9, start 8.7, max9.7
160g lead with #9, start 8.6, max 9.5
Speer 2018
115g with #9, start 11.7, max 12.7 compressed
124g with #9, start 11.0, max 12.0 ccompressed
125g with #9, start 11.0, max 12.0 compressed
147g with #9, start 9.5, max 10.5 compressed
Lyman2018
158g lead with #9, Start 8.9, max 9.9 compressed
Hornady 10th edition
147g with #9, Start 7.9, Max 10.7
Hornady 11th edition
147g with #9, Start 7.9g max 10.7g
Sierra
no loads with #9
Western (accurate)
no load data with #9