RE: different grains?
probably lower.....but you can never be sure.....always test at teh range......my gun shot about 10 inches low when i switched from 175gr rd balls to 295gr powerbelts......big jump but i didnt think thered be THAT much of a diffrence.....and that was only 50 yards!!! test at the range......you can never be sure........it might come really close or your gun may hate the lighter ones and throw them all over the place and make it look like your shooting buckshot after you fire a couple......