I dont know about the vise or drill press, they come right out and go right in with ease with me. What i do is wear a leather glove and just use some force and push it right in, i can take one off in about five seconds and put one on in less than two. Clamp the rifle in a vise on the spot where the rear sight base attaches to the barrel (its a nice flat location to clamp on to, use non marring jaws though, clamp it down) that will hold the rifle in place, then position you body and hand over the sight. Put the end of the sight in the palm of your hand (with a glove on) and just push downwards, it will pop right in. To take it out do the same thing except when you're pushing down also apply backwards pressure and it will come right out. McM
Leather work glove is the key!