I made one up by myself with no problems and I only have a hand drill. Back when I did it, the cost of getting it drilled and tapped was double what I paid for the rifle so I figured, no big deal if I messed it up. I had no problems. Today I kind of wish I had just gotten a real one but I still have it, it looks good, isn't anywear near authentic. It's a fairfield scope and mount. Probably photos of it on here somewhere. This was years ago when I first joined.