Hey Roskoe, glad to see you around again. How's the gun building business going?

I have also tried the FPB's and find they shoot pretty well even in my White Umag. They seem to stay put even though it has a .504 bore and I get 1.5 to 2 " groups at 100 yards with a peep sight shooting 110gr of 777 3F for around 1690 fps. In colorado you may want to cut off the tip to keep it under the 2x length limit, I understand they still do just fine without the tip.