Shooting Master John Gannaway points out that all you really need is a 22 and a 30-06. While I go along with that, I cannot avoid making a couple of perhaps unnecessary additions. First of all, the 308 is the ballistic twin of the 30-06 now with modern loadings, and even without the modern loadings the differences are too slight to matter. So your Steyr Scout in 308 will do what you need, unless you are a specialist. Certainly you need a 22 rifle, and there are scores of good ones around, but also you can probably establish need for a 22 pistol. This is most obvious if you live in the country. And then there is the matter of the shotgun. Some people really need a shotgun, both for home defense and for recreation. So I guess I would expand my minimum list to include a Steyr Scout, a Marlin 39 22 (particularly an older model without the cross-bolt safety), a compact 22 self-loading pistol, and a good grade self-loading 12-gauge shotgun. That is four guns, hardly enough to satisfy an aficionado, but certainly enough for others. Living as I have all my life amongst shooters, I cannot think of anyone who owns only four guns. On the other hand I think that when you get up into the hundreds you are overstating the case.