AR15 precision loads

[Grizzlypeg]

What would you suggest for components for putting together a precision load for an AR15 with a 1/8 24" barrel? I'm thinking of 62-69 grain bullets, possibly the 62 grainers that mysticplayer sells. Do I just buy ordinary Lee dies? Or are there special small base dies required for an autoloader? Whats the standard powder and primer to use for a precision load?

 

[beltfed]

your barrels' twist and the distances you are shooting them are pretty important.

 

[Grizzlypeg]

Twist is 1 in 8" and the distance would be 500 meters. Thanks.

 

[beltfed]

I assume also mag fed? I'd go directly to the 77gr SMK to start - 23 gr. Varget to start, and work up. Federal 205M or CCI BR4 match primers. Winchester brass. FL size & use competition dies (I use Redding).