I have not used 28g. I have used 10,12,16,and 20g shells all to my satisfaction for both clays and hunting. Besides being my "go to" ammo I support them because Morris Baker, who owns RST, is a super guy who supports many side by side shoots with event sponsorships, youth shoot sponsorships,support for collectors associations, prizes, etc. He makes an effort to provide convenient ammo at many eastern side by side shoots to make it easy for us to pick up ammo without having to hassle with shipping.