Re: PRESSURE SIGNS
ejector marks on the case head are a good indicator that you getting into high pressure and the load should be backed off , normaly the ejector marks will show up a littlebit before the flattened primmers unless your using soft primers like Federal
going by sticky case extraction is a dangerous way to note pressure. I had a hot load worked up for my Holland built 308 , it has a tight match chamber , the load was flattening primers and had some sticky bolt lift in hot weather , a buddy decided to try them out of his gun (unknown to me)which was a Rem 700 VS , the second shot galled his bolt shut , he said he should have know when he had to beat the bolt open on the first round.
In short , as soon as you get signs of pressure back off , the few extra FPS you gain isin't worth getting hurt and your gun will probably shoot better anyway