I've got an H&R Auto Excel 12 Ga in camo pattern that I use for deer and turkey. Got 2 deer with it after Christmas with the first two shots out of the gun. I'm wanting to replace the factory supplied fiber optic sights with a set of Tru-Glo front and rear, rib mounted. They are available in 6MM, 1/4", 5/16", 3/8". I am calipering the rib at .280. Does anybody know the correct rib width for a replacement sight?
