I would highly recommend Westley Richards 10 shot holders. They fit tight to the belt so they don’t slide about and the shells are tight in the holders but not to tights as you can’t get them out in a hurry. They make in all calibers and dark and tan leather, so what ever your taste they have it covered. Never known any client ever need more than 10 double rifle bullets either, so a culling belt is a bit over kill and extra weight to carry around I always feel. Just my two cents. Here is one of mine.