My truck gun is a 20 inch barreled Howa Lightning 204 with a Redfield 4X12 scope. It stays in my truck 24/7. I've killed coyotes, a bobcat, crows, and other assorted critters with it. I am not a huge fan of the 204, but this rifle is scary accurate, and I have a bunch of 32 grain VMax's on hand, so I use it. I think, if I were getting another "truck gun", I'd look at the Howa mini action. Whatever I'd get, it would be in 223.