[Sevens]

It really depends on what you want to get out of handloading and out of the ammo you build. If the most important thing is a short shopping list and no more worrying about keeping a great selection of powders on hand, then yes... you can load a dizzying array of different chamberings with just one powder.

That will never be a goal of mine. I much prefer the flexibility of not only being able to load just about anything, but really being able to produce some of the best loads I can make in each chambering. That's very important to me, but I consider myself an enthusiast. Others may not agree and some simply want ammo that makes a "bang" and little else.