It'sa start. When you get a frame, we need to turn that "grin" on the barrel into a great big matching "smile", so it will feed the short stuff.
Then, put the fire control parts(Hammer, sear) in a good and accurate Power Jig, and really introduce them to one another.
Then, that "Exit" door, on the slide, needs to get longer and deeper.
At this point, the slide needs to be mounted, fitted, and sighted to the load that shoots best, or the one you like best, whereupon, you have a GUN.
500 Rounds, down the road, we will KNOW that we got it right.
Hope this helps, IM me if you need help.
Don't start no s**t and there won't be none, Terry