I’m still relatively new to casting and learning something new every time I cast rounds. Last month I shot an axis deer with a subsonic 223 round I had picked up somewhere. It worked great for a neck shot inside 30 yards. Where I hunt axis there’s some nosie type people that are none the smarter if they aren’t hearing a rifle being fired off. I’m castOmg 223 in a lee 55 grain mold and have been loading them with unique. Powder being hard to come by, I was wondering what people were using for 223 subs. I was thinking maybe 3 or 4 grains of unique to start with and work up or down depending on results. Am I thinking right on this?