I know that there were such rifles in the past, and a quick google suggested that they weren't very popular due to gas discharge close to the face of the operator. Were there any other flaws in their design?
Having said that, would there be reasonable ways to correct those flaws? Moreover, would such a design bring any appreciable benefits to a long range rifle, such as accuracy? (the obvious benefit of a built-in brass collector is fairly small). I've heard that bolt-action rifles tend to be at least slightly more accurate than semi-auto rifles, so I wondered if maybe this would fit somewhere in between?
But mostly, I'm just curious..

My other question comes from reading the rules and wondering about recoil and laser sights. Specifically, would a laser sight be at all useful on a fully automatic weapon? It would seem to me that once you're on full auto recoil would make the laser jump around so much that it would be pointless.
Besides, anymore isn't full automatic fire more intended for suppression than actual wounding? Isn't this why they took full auto fire off the M16 as an option (since soldiers would just waste clips rather than aim)?
Thanks a lot...
The Other DSE