The Lunar Society meet monthly during a full moon to have a lavishly large conversations and debates and gather. They used the Lunar Room on a full moon to have advantage of all of the light possible.
Answer:
The meaning of guns and butter is an economic policy choice of whether a nation is increasingly keen on burning through cash on war or taking care of its people.
trade-off: If you put more cash toward weapons then you are surrendering another advantage which is a trade-off.
opportunity costs: As an economy delivers more weapons (military spending) it must diminish its creation of bread and butter (food), and the other way around.
Old musket are heavier and their bullets where a bit slower and less powerfull.
The requirements are in the Constitution.