I've seen it with slightly loose bases. I mean you couldn't feel it by hand, but the screws were loose under the scope just enough allow movement.Seen it with loose action screws.
Maybe bothwhat can cause horizontal spreads when there is hardly no wind ? Would it need powder or depth seating change ?
Canting the stock. Easily minimized via a scope level.what can cause horizontal spreads when there is hardly no wind ? Would it need powder or depth seating change ?