i've been putting this off for too long, and this is a good time of the year for rifle related projects. the simple line box is created out of one 3/4" x 9-3/4" x 72" knotty pine board from home depot ($15). i used every inch of it, there was no waste. also bought a 5/8" x 24" oak dowel ($1.80) for the handle. the rest of the materials - 2" dry wall screws, titebond glue, 1/4" dowel (for the screw plugs), leather strips for the gun cradle, stain and clear coat - i had on hand. the dimensions are 21" long x 9-3/4" wide x 12" high. one side of the box is lower at 3-1/2" high for ease of getting to the cartidges, while the other side is 5-1/2" high.
and doggone if the loading block i built last year seems to miraculously be a perfect fit inside the box.
i notched the uprights on either side of the gun cradle to accept cleaning rods. i did a rough sketch and then just winged it on the table and jig saws. looks like it's gonna work just fine come the spring thaw. i hate the winter.