Get a standard hunting weight rifle. Have the barrel shortened to about 19". Take a tiny bit off the butt so that your arms are nice and tight to your body when you pull. Fit a pic rail so you can mount what ever fast focusing optic you like to it with good eye relief.
Vua la..... you now have a light weight, fast pointing, stable to aim hunting rifle with a stiff barrel that can handle a string of fire and maintain POI if you need it to.....