I got my reloading stuff today and loaded up 9 rounds just to get started. All of the rounds were Sierra 300 gr. FN HP bullets using IMR 4198 powder. lonewolf5348 , the 4198 is a very clean burning powder. My barrel is very clean after shooting 9 rounds. All shots were from 50 yards. I wanted to start out close just to make sure I was hitting paper. Here is the first three rounds using 33.6 grains of 4198. Notice the arrow, that is almost two holes in one. Just by accident I am sure.
Here is the second three rounds using 39.2 grains of 4198.
Here is the third three rounds using 49.9 grains of 4198.
No, there isn't anything wrong with your eyes and you don't need to go get your glasses. Not one of the last three shots hit the paper.
Anyone want to speculate why this happened? Except for the last three shots this is fine for a starting point. I will be trying different powders and bullets. Feel free to comment as long as it is helpful.
I must admit I am not particularly fond of the way you adjust the rear sight for elevation and windage.