The first thing I do when working on feeding issues in any 1911 pattern pistol is to load up 10 dummy rounds of each style boolit you'd like to use, take the recoil spring out of the pistol, and then cycle full mags through the gun by hand while watching what happens, and when. You should be able to feed all of the rounds using just thumb pressure on the back of the slide. You will also notice that the feed angle varies considerably between the first round, the rounds in the middle of the mag and the last round. Depending on what you observe, you may , or may not, address issues with the boolit sizing, crimp and/or COAL. It's not time to mess with the powder and charge weight until you have the geometry correct so you can easily feed rounds by hand. And, its not time for any gunsmithing unless you find that you cannot achieve the desired results by correcting the ammo dimensions. I have only seen two instances in the last 30 years where the condition of the feed ramp in a 1911 was part of the issue, and one of those was due to a way over done "polish" job. Lack of a proper throat is the much more common mechanical problem.