it would definently be sweet to have a flintlock turkey gun....that would be great...but i havent seen anything like that...im sure you could have one built or find an old one....but it would be pricey....i dont think theres any makers out there that make one now....sure you could find a caplock.....and your right....the funnest part of turkey hunting is having them so close.....a mod should shoot good out to 30yd or so id bet.....but i never shot or seen a pattern from a BP shotgun so i cant say for sure.....i know a normal 12ga with a mod can do it to about 30 or so...and with BP you can play with loads and find a good pattern....good luck