Looking to make a soft shotgun case that could be rolled up when empty. I don't know material weights, but this would be a material like a Cordura fabric, or vinyl boat covers, or a little heavier than the old time chamois we used to dry off cars with after washing. Basically a long rectangle of material folded in half lengthwise, stitched along where the edges meet, and a flap on the end with a simple tie closure. Finished length about 52" closed. Don't need or want any kind of lining.
I would like a suggestion on type and weight (3 to 4 oz?) of material (cowhide, water buffalo, buffalo, etc - I know nothing) and suggestion for the hand stitching - thread or lace - and how do I make the holes for the stitching? I am pretty handy with tools and such but know nothing about working with leather.
General shape looks like this snapshot
Thanks