Personally, the Hornady Interlock is my basic practice bullet. If you buy from Higginson's, it's about as cheap as the bulk Remingtons.
I've had no trouble getting 1/2 m.o.a. performance out of ordinary Interlocks, assuming the rifle and load are up to the task. Certainly a solid 1 m.o.a. should be obtainable.
These bullets are also excellent on deer at .30-06 speeds. Though I've shot a ton of these bullets through 7mm and .300 Magnums, I've never actually shot game with these cartridges, so I don't know how ordinary Interlocks would perform at the higher velocities.