I don't know what wildcat you're shooting but a lot of wildcats have an improved shoulder and minimum case taper. These cases usually don't show pressure like a normal tapered case they are usually made from. A chronograph can show when things are about to go wonky, when an improved case wont. It's your choice to budget a chronograph in or not, I just think they are useful tools and I'll have at least one in my toolbox.
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