The one I will make here will only carry a few birds, my next hunt is a grouse hunt with a 3 bird limit, so 3 to 5 loops on my carrier should do.
If you choose to construct it would be easy to adapt for your needs. I'll probably also soon make a carrier for dove, a fifteen bird limit.
Step 1: Gather Your Tools and Materials.
Small brads and crimper
Rings, mine salvaged from an old tent
Step 2: Layout Project on Leather
Then cut out. I find a simple sharp utility knife is best for cutting.
Step 3: Mark Holes for Punch and Brad.
Step 4: Cut and Punch Holes for Belt.
I laid out slots 1&3/4" and punched holes to assure stops in the leather and that'd not tear.