I'm planning a 100m airgun project, as an experimental platform. Going for ultimate accuracy for in- or out-doors paper punching. Not to compete officially at bench.
I do hope to get lots of other suggestions, so I'm open minded about this.
For now the planning is a pellet or later possible slug shooting Theoben style 5, 5.5 or 6.35mm (yes licenced) rifle regulated with either a LW poly or Benchmade 3 grove barrel. Which will be tested, hand lapped, and indexed. I know the barrel is the hart of this project and just finding a "good" one is going to be a challenge.
Quick fill, gauges on both reg and cylinder. I have lots of 400cc cylinders, but hope to get a 500 or 450 carbon for this.
Adjustable pellet probe to play with, and hopefully perfect the correct pellet depth.
Good glass and solid stock. Everything else is academic, unless it drives accuracy.
Have access to CNC machines, for any custom work, although this is to be for fun and ballistic experimentation.
If anyone has other suggestions or opinions, please let me know....