I know this a late add to this thread, but for anyone seeing this thread for the first time - I bought the same bullets recently. When I did not see any load data at Sierra's website I called their 800# to inquire with a ballistics tech. He explained they no longer post the data online, but he sent me all the 10mm data he had in an email. It was watermarked do not share so I am not reposting it here, but it's only a phone call away if you have any of their other 10mm bullets and need info.
" Ask and ye shall receive..."
" Ask and ye shall receive..."