i know fred can help on this one. i usually load a 230 fmj with 6.3 grains of unique. it seems fine in my glock 30. now i have picked up a box of hornady 230 grain xtp's. some of the websites i checked out had loads using up to 7.2 grains of unique with a 230 grain fmj. man that seems really warm! i was just wondering if i could work up to even 6.6 grains unique with the xtp. anyone know the aprox pressure of this load?