Interesting thread.Dave, wonky donkey, put me onto it. i have just bought a 300s, not intending doing any 10m but informal target shooting etc. I have fitted a Leupold compact. Interested how you fit a longer scope like the S&B trouser trumpet? Have you aded an extension rail on the scope grooves to give you more height to get your fingers into the loading port? The compression tubes pretty small. just ordered one of maccari's springs as well.