I have a switch barreled precision rifle that I have a 280Rem barrel,30-06 barrel for.
My plan is to get a 35 whelen,270win,25-06, and a 6.5-06 barrel made as well. The whole crew so to speak. No improved versions though. Been there-done that, and dont feel there is a "need" for it.
One rifle, all characters/cals. available. Fun stuff this is!