.224 24" upper
I was finally able to do some work at the range with this build today. It took me 5 shots on paper at 50 yds to dial in my rifle scope. The next 5 were put on a 10" steel plate at 100 yds and then I moved it out to 200 for 10 shots. I didn't miss the steel once and honestly kept the group of about 9-10 of the shots to about an inch. So far I'm very satisfied.