Need 300win mag load

Ok I have started with my reloads for 300win mag  (I have two a CVA Apex and  T/C Encore) they are both 1:10 twist 25" barrels I have been shooting factory ammo to get brass. They like 165 gr SST Hornady and Barnes tipped TSX. I have not shot any 180gr yet. I have on hand nosler 165,168 partition and ballistic tip and a few sierra 165 game king. I have R19,R22,H4831sc,H4350 and a little varget and a few other powers. I just hoping to cut down on the components and $$$$$ needed for development. Any input is welcome.

You need to get it from your load book. Because not all guns shoot the same. I have 4 243 and they all like a little different powder load. So you need to work one up for your gun. Good Luck

How has the Encore been shooting? I am working on two 7mm-08 barrels and so far they seem to average groups a little larger then 1.5".

RemMan The Encore is doing well. I have some good results with 168 nosler silver tips and 71gr of R19 the best group just under 1.5" at 100yd it opens up to around 4" at 200yd but I think thats more me than the load. I will work on it as I can being from Mo. you know deer season is all most here so things are on hold till after that.  
I have a 45-70 15" pistol barrel for late season but that may not get done till next year.