I'll speak having knowledge of the CA ridgeline because I have one. It is very common in the CA mag calibers to get the 2 ejector imprints on the case. I've loaded using 5 different powders on all spectrums of the books and almost everyone will produce ejector imprints. I find my most accurate...
I do a 200 yd zero for my 28 Nosler and then a dope card specific to my load because I might only be able to get the 500 yd range because of big open country. My coyote or predator rifle i zero at 100 and thne just make calculation past that but generally shooting within 250 yds. I guess its all...