Newly Question about ammo

[Jamesb14]

I had an extra upper/lower and decided to put a 6arc together, this is just a range gun. It has a 20” barrel and been looking at Druid hills ammo, 58 Grain Hornady V-Max , 75 Grain Hornady V-Max, 90 Grain Hornady ELD-X. Should I just buy all 3 and see what does the best or does anyone have a opinion where I should start? Thanks

 

[Redlion]

Buy a variety of ammo that interests you and then shoot it to find out what your rifle likes.

 

[USK308]

As @Redlion said, buy a variety of ammo and see what your rifle likes. My brother and I both have the exact same M4 5.56 rifles, but his prefers 77gr ammo, where as mine prefers 62gr ammo.

My brothers 300BLK prefers either 190gr or 220gr subsonic, where as my 300BLK prefers 200gr or 220gr subsonic (his is a 9" barrel, mine is 10.5" barrel).

 

[bfoosh006]

As mentioned... until you try all the available factory loads, you won't know.
( Not trying to be a smart ass )