admin :double post please remove ..

so I am a semi noob to reloading and reload for 38 special and 3006 for my grand and 1903a3. I have just picked up a kimber 8400 advanced tactical and want to get more precise loads development for it. It is advertised as a match chamber. First what does that mean just tighter to spec? Next I know neck sizeing is the way to go for fire formed brass but with a match chamber would full size work as well since it should not expand much at all in a match chamber? I am trying to get well below moa with this rifle at 100 to 300 yards since it's kind of built for that with a good scope . I get 1.5 -2" group with my old battle rifles and would expect more from this. Any help or in site would be appreciated .