That is an interesting post - TFL does it yet again!.
Locally many Hornet and .222 fans download for less noise in urban areas and use small pistol primers which do the job and are 1.7c as opposed to 3c from our supplier.
I suppose a 44Mag Rifle could use LR primers -though it is a pistol calibre....but I have always used LPs...interesting as I thought [with a 180gn and 25gn AR2205] the Federal LP primers were getting a bit difficult to press out.