280 AI and Retumbo

[eyeguy]

In my 26 inch christiansen arms with a little over max book of retumbo I am getting 2940 fps with fed 210 primers. I do have the 175 elite hunters past normal coal cant recall measurement at this time. new nosler brass handles 62 gr without trouble but after about 3 loadings gotta back it off a bit for practice still shoots very nearly same point of impact out to 400 ish