I have. I take prepped brass with me, and have a Lee Reloader Press mounted on a square of plywood to be C clamped to any handy flat surface. Need a scale, a Lee dipper set, and a trickler, and I am in business.
Think I saw the article mentioned earlier many years ago. One of the gun writers had a 155 mm shell box adapted as a complete reloading setup. It would hold everything he might need, and the press and measure could be mounted in minutes.