I\'ll give you my 2 cents....
A long range guru I am not, but I have learned some things over the years by playing with different wildcats and Ackley Improved cartridges. Personally, I'd go with the standard .300 Win Mag and here's why: to achieve noticable gains in velocity over the standard .300 mag, you need to burn a pretty significant amount of powder-hereby increasing recoil. There is plenty of great brass available for the .300 Win mag vs. slim to zero for the .300 Dakota. Tons of load data, tons of trophies, and tons of dead animals with the .300 Win Mag. Now, don't get me wrong-I think the Dakota makes a lot of sense in it's design (case shape, no belt, longer neck, ect.) I think a lot of the time we try to reinvent the wheel. I have dinked around with lots of different stuff simply because it was just that-DIFFERENT! and if that is your reason, I say go for it! If you want a good reliable 1000 yard target gun or kill'n machine, look no further then the .300 Win Mag. If you still have a hang up velocity (I was there for a while [img]/ubbthreads/images/graemlins/wink.gif[/img] I'd suggest jumping to the .300 RUM-which is also very accurate and loads of data. Personally, the Win Mag will all I need it to do with less recoil (by far) then the RUM. Again, just my 2 cents.
....when they pry my cold dead fingers from around it