HANCOCK, Md. – Lance Hendershot learned the ropes of both customer satisfaction and cartridge hand loading at a young age by working in his family business, Hendershot’s Sporting Goods, since 1961.

Amputees wishing to get a powered prosthetic hand – also known as a bionic hand – typically have to wait quite a while for it to be manufactured. Soon, however, they should be able to order a custom ...