The Rio bismuth is 2.75" and in the heavier load is a little much for composite barrels imho, but there is a 2.5" shell I think called classic with nice shot (or something like that)that I have shot with good results. It is not as economical as Rio...Geo

<http://www.rstshells.com/store/c/18-12-Gauge.aspx>

Last edited by Geo. Newbern; 08/22/15 12:56 PM. Reason: added hotlink