Yep.L. E Wilson and Dillon case gauges are cut generously in the body dimension and measure only shoulder position and overall case length. You can have a case that fits the case gauge but will not chamber in your rifle.
Sheridan Engineering makes case gauges cut with a chamber reamer to chamber dimensions which will be a better indication of what you are looking for.
L. E Wilson and Dillon case gauges are cut generously in the body dimension and measure only shoulder position and overall case length.
It's my understanding that those gauges are cut to max SAAMI dimensions... I have fired .308 cases that will fit 'good' in my Wilson gauge. The only thing I use my Wilson gauge for now is checking for the need to trim.
+1Ultimately, the rifle you plan on firing it in is the best gauge.
" Measures min/max Headspace. Does not measure body diameters"
Ultimately, the rifle you plan on firing it in is the best gauge.