I use a chalk bag for rock climbing if I only need to carry enough to reload 8 shells or so. It's light weight, compact and works pretty well. Plus the chalk bags are only around 15 bucks (if that) depending on what you get and where you get it.
That makes my face hurt just thinking about it.
^thisThis is my old bird hunting set-up.
Shells go in the right and/or left bags, birds go in the back bag.
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Ah, I didn't know that.
I guess
shotgun
shotgun shells are for O/U?
I carry sh-shotgun shells. Only type to use with a slide.