I used to use alot of Blue Dot in 38 Super, 38/45 Clerke, 357 Magnum, and maybe one or two cartridges that I do not remember at the moment. I've found powders for those cartridges that I like better than Blue Dot. I have a few loads that still use Blue Dot so I always have some on hand. Unfortunately these are trying times.Blue Dot? I've been looking for Blue dot powder for over a year. No luck. I've heard of all sorts of good things about it for 10MM and Magnum loads. Maybe one day I'll be able to acquire some. I have seen mainly .355 out in FMJ, Cast bullets tend to have a choice between .355 and 356. Have you shot 38 Super +p with Cast bullets?
THX
CH
I've loaded cast bullets in the 38 Super, primarily round nose bullets. Appropriate bullet sizing and hardness still apply. Generally, I load a little below max. I have plans to try some 125 grain MP cast hollow points but I've not done any casting in a while.
As a side note, if I remember correctly, the trend in the firearms industry is to call 38 Super ammunition, "38 Super +P". This is to make a greater difference in nomenclature from 38 Auto or 38 ACP. 38 Auto and 38 Super share the same case dimensions. Guns chambered for 38 Auto cannot handle the pressures of 38 Super.
Most of the reloading data for 38 Super and 38 Super +P will have similar performance with the same bullets although the powders may differ. There some boutique loaders that sell 38 Super +P ammunition that generate higher velocity than the Industry standard velocities.
In normal conversation, most folks just call it 38 Super. Old habits are hard to change sometimes.