night hunting is probably better but during the day is maybe easier because of the light morning and evening do about the same calling mid day gets tough but it is possible buy some calls if you can afford it an electronic call with a remote works well if you are not going for hides the 270 might muchbut if you are just hunting it is fine but it is very addictive when you call in your first coyote and close the deal you will probably be hooked if you cant afford a elec. call a distress call and a howler will do the trick and if you want to hide hunt a 22 cal centerfire would be good since you already have a 270 for deer i assume a 223 would work fine and is probably cheapest to shoot