This past week, my 38-55 Marlin shot 200 grain bullets four inches higher than 255 grain bullets at 50 yards, both loaded pretty warm. I've generally found that the big, slow calibers (38-55, 44 mag, 45-70) vary more from bullet to bullet than the smaller, faster calibers do. I had a Ruger 77 30-06 years ago that would shoot almost everything from 150 to 180 grains to about the same point of impact at 100 yards.
