I have a strong suspicion the person that designed the tin that contains percussion caps has never fired a cap and ball revolver. Opening the tin is exercise in finger slipping, tongue twisting, and words I wouldn’t say in front of children. Nothing to get a grip on and held so tightly the lid wont twist. If you’re lucky, when you do get it open, you don’t scatter 100 caps all over the floor. If the designer ever tried it with the smallest bit of lube on his fingers he would have gone back to the drawing board. Is there a trick I’ve missed that let’s one open the cans easily?