Leaving out all the non ml items.
5 speedloaders (weighed charge and bullet)
full primer capper( a small mint tin with some extras just in case)
decapping tool and nipple pick
short starter
patches
Leatherman multitool
Electrical Tape and wool sock for weather protection

In my truck I leave a small tool box that includes additional items listed above and any thing I may need to dis-assemble or repair in the field. I use to pack it but have never needed the items so I reduced my pack weight but still have them available just in case.

BTW, I actually carry 2 speedloader, capper/decapper and shortstarter in my side pockets for ease ofaccess.