Myself and others have tried finishing hogs with 9's and 40's... Never seems to be a one shot proposition. I normally carry a 40 wit 2 mags, one with snake shot. May need a new holster and start carrying the 45.
I have taken to carrying two rifles- depending. My B92 44 mag in the interim. It does the job as a finisher.

When a country is well governed, poverty and a mean condition are something to be ashamed of. When a country is ill governed, riches and honors are something to be ashamed of
. Confucius