What are you doing specifically?
Are you in competition?
IMHO, if you are shooting a 10/22, you might as well use bulk ammo. You are (probably) going to be shooting under 100 yards, and that stuff works just fine.
Remember, you are using a semi-auto and not a bolt gun. You are going to loose some accuracy with the semi action that you would not with a bolt. Semi autos are sloppier than bolt guns, and it affects accuracy.
I have a 10/22 with an Adams & Bennett bench rest barrel, and it's as accurate as hell with standard Remington/Winchester bulk boxed .22 ammo.