Yep,G.M. does not carry it nor much else for that matter at least not a mine.
Stuff for the 45 is almost non existant,I couldnt even find cleaning jags for it.
If you shoot 50 cal you still have a limited selection unless you shoot powerbelts or Shockwaves and they sell out fast.
My Wally world is the same way,PB's and SW's and 50 cal only.
I do get powder and primers from them though but no BH 209.