I have a photo somewhere, but for the life of me can’t find it.
When I was seriously shooting Highpower and 80 SMKs and JLKs in my AR, and I was a lot keener then, I used to do all this, and I remember starting with an OAL of around 2.450” and ending up at nearly 2.550” give or take
I was using Redding bushing dies with quite a constriction on the neck, and you could clearly see the base of the bullet half way up the neck, such was the wear
I took a photo of one of the rounds, but it seems to have long since disappeared