I shot one last year that dropped, thrashed and laid there. Then popped up and took off after a minute or so. I never found a drop of blood, bone or fur. 250 grain 40 cal all lead polymer tip sabot (50 cal muzzle loader), with 90 grains pyrodex at 35 yds. You live and learn. As someone said on here, you will learn from it or quit hunting. You will learn. The ones who end up quitting don't agonize over the wounded deer. Those are the ones who usually just show up on doe days and man the line for a drive, throwing lead at anything brown.