using BH 209 vs. 777
 

OK, let me get this straight.

I've ben using 777 in my Omega. I have been swaping after every shot. I just bought a can on BH 209 to give it a try.

Since the gun has been stored with an oiled barrel, I should run dry patches through, shoot 10 - 20 rounds and then clean with a wire brush and solvent?

I've been using 100 grns. of T7 and Rem. STS's. Should I use the same of BH 209?

Any other advice to make the trial a success?

No need to clean with a wire brush IMO. Just run some patches saturated with Hoppe's or Butches bore shine.

Yes run a few dry patches down the bore to mop up that oil.

STS primers and 100gr BH209 should do just fine. Although you may have to adjust either up or down on the powder charge for fine tuning.