"A Boxlock lasts as long as a Sidelock and some would argue that it is a lot more reliable. Due to itas short a?stubbya action length, it tends to feel heavier when finished to the same weight as a Sidelock. The feel of the best gun is all about weight distribution and the Sidelock spreads itas action and locks over almost twice the area of a Boxlock, hence it feels more alive in your hands."
This is the relevant quote that I saved to my documents some years ago. The site may have changed content since then.
Interesting in view of the above comment is the tendency of modern boxlock designs that bring the triggers ever closer to the action body, ie shortening the weight dristibution axis, inorder to improve the balance. But balance is not always the same as feel.
