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Message: <blockquote data-quote="swampratt" data-source="post: 2852315" data-attributes="member: 15054">For one that primer is not flat all the way yet.Cratering can be from the fit of the firing pin into the hole.. I have had new savage rifles with a sort of loose fit and the crater on some primers is ugly but no where near over pressure.Like stated your primers look fine and take the accuracy over speed..BUT,, I would load 1 to 2 tenths of a step more for testing purposes if it was my rifle.I would continue to step it up until i got a little stiff bolt lift or the groups opened up.WHY you ask.. so you know if you are in an accuracy node and how large of a spread is this node.And like stated work it up with hotter temps and see if the node is still there.I would also back it off in .1-.2 gr steps to see how far down the scale the node is.I would take the lower node if it stayed true in all temperatures.I have a .308 load that is really good from 41.7-42.5.. change primer brand and it is 41.7-42gr  for the node.Some bullets like speed in certain  rifles My .308 and 30-06 shooting the Sierra Palma 155gr did not do well until i was at the top and over the top on load data as per book specs. nearly 3200fps from the 30-06 . In the 2900fps range in the .308.</blockquote>