When I bought my Bone Collector I forgot to check the size of hole for a drill bit. Well long and stupied story short I got a drill bit stuck in the breech plug and had to buy a new one. In checking what drill bit I needed. A 1/8 drill bit fits perfect, however when I had my prohunter I was using a 1/16. Is there that big of a difference? Or did I happen to get a faulty breech plug?