In a word, disappointing.
I was able to achieve 2 MOA at 100 yards with a 5.56mm AR. The bullets were formed using 22LR cases for jackets. The rifle can do much better with other 55 gr hp bullets.
I am hoping to increase bullet accuracy potential with better, more uniform swaging techniques.
On another note but relatedly, there were several cases with blown primers! This was discovered after I had shot most of the test rounds. While I know that the high pressure will have an adverse effect on accuracy, I chose a mid range load with Benchmark from the Hodgdon website.
I admit my mistake-- I broke the rule of starting at the low end and working up. I got spoiled to commercial bullets, and these perform differently.
So I will do a couple of things before I give up on swaging. I will work to improve my bullets. And I will work up loads for accuracy (and safety).