I always reload after I shoot. You never know what might show up. I've had other deer or coyotes show up a minute after I shoot. Plus, God forbid, I wound one or miss.
Back before in-lines, I used to carry my .58 Zouave. I used to make pre-measured powder loads in a news paper tube that I'd roll around my powder measure and tape shut. When I reloaded, just tear it open and dump it in. I was using pre-lubed Buffalo mini balls and keep a few in my right vest pocket (I'm left handed) with a handful of caps. The ball starter in my left vest pocket. I'd generally carry 3 or 4 with one round in the gun.
Now, I carry one round in the gun, with 3 speed loaders on my belt. A handful of 209's in the right pocket and the ball starter in my left pocket. The rest of my ammo stays in the truck. I use a Power Belt Speed Clip for my speed loaders, it's real handy.
https://www.cabelas.com/product/PowerBelt-Speed-Clip-Loading-System/706305.uts?slotId=7