I am just getting a Nico TIR gauge but I was doing some reading and one author said that any gauge relying on V-blocks or bearings on the case is going to exaggerate run out as it is introducing the eccentricity of the case. This person seemed to think that the types that supported the cartridge at the base and bullet were giving a more accurate picture of the run out and mimicked how the cartridge is supported in the rifle chamber (by the rim or base and bullet). The H&H and Hornaday support the case this way.
So have a taken a step backward going from the Hornaday to the NICO? If this is correct should I be gauging the case necks rather than the bullets?
I am mostly of the school that believes in loading them straight to begin with and then don't worry about it. I think either gauge will be useful for checking die set up. Thoughts and advice?
