I use 223,1/9 223 AI,1/7 22-250 1/9, 1/12 22-250 AI 1/8, 220 Swift,1/12 Swift AI 1/8 and my favorite is the 17 Hornet. I swage all of my own bullets from 22 LR Brass and J4 jackets and Hines jackets. I also coat them with boron nitrate.
Have you tried the new Hornady 75, 80, 88, grain ELD bullet there os also the swift and the scirocco bullets.
I have 224TTH 1/8 I have used Hornady 55gr. too fast, running 4300 fps yes the did make it to the target. Also Nosler has a 85 gr bullet too.