|
Case head measurement is not a reliable means to determine excessive pressure. Handloader magazine has had extensive articles about it. In straight walled pistol cases, difficult extraction is not always a good sign because of the time you get to that point, sometimes you can be twice the pressure limit. Flattened and cratered primers are fairy reliable. The only way to find out how much pressure is developed is a strain gauge of some sort. There's a company whose name occasionally surfaces that will test your ammo for a fee. Unless you have a good supply of uncommitted money I don't think you'd want to invest in the equipment.
|