I second the 5gr of Unique and would add 3.5gr Bullseye, over 158gr cast. I also shoot the 3.5gr load over 150gr cast in 38 special cases. Both are very accurate loads. I cast my own so I am not as familiar with where to buy them though, I am only really familiar with Missouri and Dardas. If you have not checked Dardas bullets you might want to. Dardas has a good 158gr cast swc.