Could you explain what you mean by "bullet setback against the feedramp"?
As for how many times the round has been reloaded..
Well, to be honest since I got it off the ground at the range I cant say for sure, but i inspect the cases and everything seemed to look fine. To be honest I'm one of the only guys who reloads there except a few others and they wouldnt have let me take their brass..
I KNOW I have reloaded it twice. SO this would be the third firing for that brass.