[Silver Bullet]

You drill and tap for a scope base,and your happy customer has a negligent discharge resulting in injury/death,or loads 72 grains of Bullseye in his 300 win mag(don't do that,its a blow up the gun load)so now,there is an investigation because somebody is hurt,lawyers are involved,and you drilled and tapped it,or worse,put on a recoil pad!

I was just about to bring up liability considerations. It might be a hobby to you, but if someone gets killed because of a slam fire it's going to get mighty serious to somebody. I would recommend either know your limitations and don't exceed them, or maybe get insurance.