Fair enough, in the other thread you asked about how hot a load a 94 chambered in 45lc can handle and I'm still mulling that over but I "think" (and someone correct me if they think I'm out of line) a Win 94 Trapper chambered in 45lc with good brass like StarLine should be able to take quite a stout load, my thinking behind that is the action is used for the 30-30 ect which operate at higher pressures than the 45lc.
But like I mentioned I have not tried to hotrod the 45lc mainly because well that big heavy old projectile just kills things, and I have bigger guns if I want things more deader.
I suspect my 300gr load is doing somewhere around 1100-1200fps out of a 16" tube, I have never checked it... Thats just a seat of the pants measurement.
As far as rifles go if you have Marlins and are happy with them, I know they did make some 16" guns in 45lc, maybe you could keep an eye out for a secondhand one.
I think you will really enjoy the 45lc I know I have.