What powder do you guys use with the barnes 210 ttsx in the 338WM?
Never shot the 210 TSX out of my .338WM, but I've shot 210 Partitions and 200gr Ballistic Tips and RL15 worked great. I have used RL 15 with other semi-light for caliber bullets including 125's and 150's in an '06, and most recently 235gr TSXs in my .375 H&H, and it worked great everytime.
R17 is the first place I'd try although I have no 338 win mag experience with it. But I think it's gonna rock in that round.
From my actual personal experience R19 would be the choice I'd go with.
Dober
Try R-15, I'm having good luck with my .338wm and 210TSX's. Since the bore size to case capacity is very close to a .308 win and R-15 is a go-to powder for it, R-15 works out very well in the .338wm. I've used a variety of powders and had good results with H4831 and IMR4350 also, mostly with the heavier bullets, but for the 210TSX's I get better accuracy and nearly as much velocity with R-15.
R17 is the first place I'd try although I have no 338 win mag experience with it. But I think it's gonna rock in that round.
From my actual personal experience R19 would be the choice I'd go with.
Dober
+1 on the RL-17...............
Can't wait for the Aussie importer to actually import some!
H4350 is working well for me.
I am using Varget with the 210 TSXs. I get very good accuracy, but have not chronographed my load yet. (My chronograph doesn't like bright, sunny days and I have not located any of the flexible fiberglass panels that various posters have recommended as a fix.) It does shoot little bitty groups at 100 yards--the smallest groups that I have ever experienced with my .338 WM.