For coyote, i'd still use 100 grain bullets. Why not?? They will already be sighted in, and give you some practise with your "deer loads"!! Also, in many cases, the heavy bullets do less pelt damage than lighter explosive bullets.
I whole-heartedly agree. I only use one bullet in my 243 Win and that is a 100 grain Sierra Game King. If I am not mistaken Federal loads them in their premium line. Federal also loads Nosler Partitions and Winchester loads 95 grain Ballistic Silvertips if you are of a mind to try them.