I was wondering something when it comes to seating depth. For example: in my 300wsm I have a decent load worked up with Rl-17 and 168gr Barnes TSX. I have my OAL dialed in for the Barnes as well. I want to investigate some other powders with this bullet so can I/ should I use the same seating depth for the Barnes when I use a differnt powder? So my basic question is optimum seating depth specific to the "type" of bullet or more so to the type of bullet/powder combination. When/if I find another powder I like should I work on finding a "new" optimum seating depth even though I am still using the same bullet?