Personally I like loading blocks, but only for single day use or woods walks. Carry them around for a while and find that the pre-lubricated patches go from too sticky (think fly paper) contaminated patches to dried out patches.
When hunting I find that a few oversized patches preluded with mink oil in a tin are all I need. I typically reload after a shot, but find even taking my time with a pre-lubed oversized patch I can trim it and reload quickly. When I am very confident in my shot (animal drops within sight) and feel I have a few minutes to spare, along with it being early in the day, I have ‘cleaning kits’ ready to go in Ziplock bags, but only HC and PC ones
. They include a couple of patches pre-lubed in something like Hoppe’s 9 Blackpowder formulation, a number of dry patches to be wetted with alcohol from a small bottle, a few dry patches and a pipe cleaner. In a matter of minutes I am back to a nearly perfectly clean barrel before I reload. While I have taken a few second shots, I usually find that field dressing and dragging game back to camp or transportation pretty much eliminates the opportunities for that second shot, though I want to be confident if an opportunity presents itself. At the end of the hunting day I pull or shoot off the load, followed by a proper cleaning before reloading. Find everyone has a cleaning reloading variation that works for them. Figure that out and you will know how to carry pre-lubed patches - and other fixings.