Hi all, this is my first post! I was hoping someone could give me some insight about the problems I’m having. I am trying to work a load for coyote hunting with a rem 700 in .223. I believe the barrel is a 1:14 24” long and it’s older. When I received the rifle the prev owner said that it had been shot a lot. Maybe 5000rounds. The problem I’m having is inconsistent groups at 100 yards. I’m reloading for this gun and think the problem might be in my powder/ bullet selection. Currently I’m trying IMR 4198 19.3grains with hot day 40gr v max. The other odd thing I’m seeing is measured velocities with a deviation of almost 500 fps. I’ve replaced the scope on the rifle and tried various loads except factory and I feel like it could be a losing battle. Any help would be appreciated and thanks for pouring over this long post.