I know i have been wearing you fellas out with the f-class question but i am really really interested in all this. I have probably said this before but my very first rifle shooting experience was shooting prone and i have very fond memories of this, and still enjoy it very much. anyway i hole purpose currently is for a local 300 yard match and i am going to shoot a ppc and a 6BR. However i may want a bigger chambering to go along with his set up. My action will be a 308 bolt so i am limited to what i can choose. My question is this. Will a standard 284 compete or will i need a 284 improved, something like a shehane? Please advise. thanks Lee