I ran the Final Finish through my 7mm Rem Mag hoping I could reduce copper fouling with lead free ETips. My barrel is a SS Rem 700 26" take off. It has around 200 rounds through it and copper fouls like crazy. I'm constantly chasing a narrow window of clean to slightly fouled for accuracy. I loaded up all 50 bullets with a starting load of CFE223. I bought the CFE in hopes of using it with ETips in my .308. I was never able to get the reported velocity increase from CFE in my .308 and accuracy was not as good as Varget. Figured this would be a great way to use up the pound I have and might help reduce copper fouling during fire lapping. Started off with a dead clean barrel and shot a 5 shot group of my previous ETip load where accuracy was best at a .100" jump. I then ran through the Tubbs loads stopping to clean every 5 shots. Following those first 5 ETips the lands in my gun looked like brand new pennies! I used a combination of Hoppes, Shooter Choice copper remover and Flitz. Previously Flitz was the only thing that would really get the copper out short of spending an entire evening running multiple patches of ammonia down it every 15 minutes. By 15 shots in to the Tubbs kit copper fouling was not an issue at all. Combination of the 130 grain lead core bullet, compound and CFE powder? Who knows but clean up quickly sped up as I went through the grits. At the end of the fire lapping I again cleaned the bore and shot a group of ETips. The first two shots at 280 yards were less than an inch apart. The next three moved up and to the left in to a little more than a MOA group. Shooting off sticks following 55 rounds of unbraked 7 Mag I was not let down. We'll see if accuracy improves at all with an adjusted load but hopefully the fliers starting as the copper fouling increases will take much longer with the newly polished bore. Right in line with what I have read in other's posts my distance to the lands increased .045" and my previous accurate load increased by 60 fps. The copper streaking following that last group of ETips was drastically worse than the fire lapping bullets but nothing like the first 5 ETips. I believe fouling is just the nature of the copper solids. Definitely going to do my copper factory .308 next. Hopefully later this week I will get a chance to go out and dial in a new seating depth and perhaps get a few more grains of powder in for more velocity.