Honestly, knowing your propensity for head shots..........a good WFN-GC bullet around 300gr +/- or under would work just as well for you. Expansion is not needed, but accuracy is key for the head/neck shooting you prefer to do.
http://www.mattsbullets.com/index.php?ma...785d8c5eb62bcbeThe flip side of using a WFN-GC.........if you DO decide to take a body shot on one of your deer/axis/pigs...........it'll likely go stem to stern at reasonable distance.