Reloading for pre64 Model 70 338 win mag|Winchester Hunting, Shooting & Reloading|Forum|Winchester Collector

I have purchased a pre64 M70 in 338 Min Mag and was wondering if there was any advise on developing a target and a hunting load.  My past experience with reloading for the same rifle in 300 win mag has been that they do not shoot as consistent as say a 30-06 or 243.  I’m looking for a 250 gr bullet and brand of powder to start.