RE: Box for all of your ML stuff
I use a multi pocket bag which has large zipper pockets on the sides and then a huge main center. This is the same thing you see police and fire department people carry they personal stuff in. Kind of like a giant gym bag of sorts.
I keep the tools and solvents in one side. The lubes, patches, primers, caps and oils in the other. In the center is the powder, projectiles, sabots, and anything else I might need out on the range.
I keep that loaded and then carry the whole works out to the target range. I also have tools in it to break the rifle down, clean it, and repair anything that might get out of line.
Also be sure to put a pair of safety shooting glasses in there and some ear protection......