Anyone have a guide to proper front sight height for different calibers? I need the proper height for a .458 Lott.......

taller front sight hits lower -- they are marked in MM, if you know yours out, you can see what's in it.

if you really want to shoot it in, you can remove the front sight, i THINK its a 4mm screw under that.. you can glue in a matchstick to that hole, paint it black, and trim it down at the range, if you set it tall to begin with...

then order the sight that is the same height as from the bottom of the slot to the top of the trimmed matchstick

then call CZusa for the right height