anyone have experience drilling holes in either ar400 or ar500 steel?
somewhere I read that using annular cutter that is tungsten tipped is a good way to go.
if im going to do this I only want to buy drill bit once and want to be sure to get something that won't end up in the scrap pile after just a couple holes. the local steel supplier will cut up a sheet for no extra charge but they dont drill holes to make hanging targets