03-07-2025, 04:05 PM
In theory that's probably the best way. Kind of time consuming IMO unless you're in some big competition. I did that a couple times for one of my calibers.
In practice and staying within one mfr, case weight is a decent proxy. The mfr typically uses (or should use) one composition of brass, which tends to fix density and drawing characteristics, they would typically use one design structure, one set of thickness specs, one drawing/manufacturing method, case head, internal geometry, etc... so barring a great departure from those parameters, case weight, with all cases prepped the same and equal as to # of firings, can serve as a proxy. This has allowed me to narrow down my brass choices, across the calibers I shoot.
In practice and staying within one mfr, case weight is a decent proxy. The mfr typically uses (or should use) one composition of brass, which tends to fix density and drawing characteristics, they would typically use one design structure, one set of thickness specs, one drawing/manufacturing method, case head, internal geometry, etc... so barring a great departure from those parameters, case weight, with all cases prepped the same and equal as to # of firings, can serve as a proxy. This has allowed me to narrow down my brass choices, across the calibers I shoot.