I have an AR-15 that I have developed 2 loads for. One load uses Hornady 55gr FMJ, and the other uses Hornady 55gr V-Max. I was curious of the performance of the Sierra GameKing 55 gr Spitzer boat tail vs the V-Max for the sake of hunting. I plan to use the gun for hogs and varmints. Will the V-Max have a quicker expanseion than the Gameking? That's not an issue with varmints, but if I take a 200 yard shoulder shot at a 300 lb hog, I'd prefer a more controled (slower) expansion. Will the GameKing expand slower? Any other bullets I should look at? My barrel is a 1:9 twist, so I cannot use much heavier bullets.