The 270 never caught on with long range because it burns a ton of slow fuel and is a barrel torch, at least in that line of work. Yes the 6 and 6.5-284 has its fans, but it has waned for the same reasons. A hunter can dial in his 270 without too many rounds and use the same barrel forever. A target shooter can roast a barrel in a season or two; it's similar to the 243 in this regard.
LA actions are also less rigid, so target shooters as a group prefer them.
