For years I shot Hornady Light Magnum 139 Interlocks in my A-Bolt II. It shot consistent 3/4" groups and was deadly on whitetails. I finally ran out of light magnums and switched over to the Superformance SSTs. My rifle did not shoot them well.

I am trying to see what others are having good luck shooting in this rifle/caliber.

Thanks in advance.

Buy a few different brands of ammo and try them,find the one that shoots best for you and stick with it. Remember every gun will shoot different ammo better different,for example,my Remington 700 in 30-06 LOVES Remington core lokt 150 grain,1" groups all day long,now my friend has the exact same rifle,his does good to get a 3'' group with Remington CLs 150 gr. But it shoots 1'' 1 1/2'' groups all day with Federal 165 grain. How that helped and good luck!