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Message: <blockquote data-quote="swampratt" data-source="post: 3855780" data-attributes="member: 15054">My New Lapua cases shot better after my initial firing of them.I then ran my calipers into a neck of a new case and measured the ID while slowly turning the case and found them to be very rough.You can feel the roughness of the case neck ID through the calipers like feeling a fish nibble on a fishing line.I was brushing neck insides at that time and decided to Full length size those and brush them and groups were better.Still slightly better after the first firing though.</blockquote>