I used a lot of cfe 223 in a finnlite 7-08 with 120ttsx and with 48 gr I was getting 3200fps . It was devastating on deer which is all I shot with it . Don't tell me I was over pressured because I don't really care to hear it , gun functioned great and brass and is still being used in a ridgeline 7-08 and has been loaded 8 times now and is still as tight as it was the first time I loaded it.