need advise 338 lap dies dillon press

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hi all im just looking for some advise on a die set to get for my dillon 550b press i am looking to get into 1000m target comps but are unsure what dies to get for my ax 338 do i have to buy dillon or can i get something better. i have shellplate holder but i was looking at redding comp dies but i dont know much about the bushing die that comes with it .i have reloaded a lot of small cals but i want this one to be spot on, any advice would be appreciated thanks