I recall an article in a gun magazine where the author said carry a set of shim gauges in your pistol box, use them to measure the elevation settings for different loads to make elevation adjustments easier and more precise.
I have read that fixed sight guns front sights were usually "regulated" for specific loads-the 38 Special RNL, e.g.
I have read that fixed sight guns front sights were usually "regulated" for specific loads-the 38 Special RNL, e.g.