What pill are you shooting and with what powder?
Have some 185TTSX's and 210gr NPT to load up for new rig
Figure R 15 for the 185's

Always been a fan of H380 and W748 for the 338/06.

I shot mostly 200gr NBT's out of my 338-06, but I also tried some 200 & 225gr Accubonds, as well as 250gr Grand Slams (I got 'em cheap). I used IMR4350 for the 250's, but IMR 4064 for everything else. The 250gr GS's consistently gave me one-hole groups, and the 200gr NBT's and 225gr NAB's shot extremely well, also.

I started to play around with RL-15 & various TSX's, but off the top of my head, I don't remember anything about the results. I haven't played around with that particular rifle in a a few years.

Loaded up 185 TTSX's and 210 NPT's over R-15 and 200gr Accubonds over IMR 4064 I'll hit the range tomorrow and see what shakes out

R-15 and 185 TTSX seem to like each other...

Bummer....

How do you like the Cooper?

Love it,balances well and fit and finish is excellent...don't shoot to bad either