Originally Posted by
Robinhood
Charlieb, I got that and you are right. I was looking at Mr.snerdly's comment. If you notice, I quoted his post where he said that some of his 243 grew .009" at the shoulder. I could have missed something though. I would expect a 1st firing to move a little if the headspace was set at max. >009" is out of that realm and this leads me to believe he had a case head separation and that was what he saw in his barrel. Not sure but one other poster may have said something like this already.