^ha^ glad I didn't go with 175 then!
Trying to put myself in an armed guard mind set vs regular concealed carry mentality...I'd want the most rounds in my gun I could have within reason. If whatever the 45 holds is good enough for you quantity wise and you shoot them equally well and will practice equally...I'd get the 45 (especially since that sounds like what you really want). So take the caliber temporarily out of the equation.
Got to stop this post before a 300 pound Rottweiler attacks!