When I started down the long range rabbit hole in 2006, I started with a BB Panda. I began adding calibers to the flock using the same receiver and stock for a total of five. 13 years later and Lord knows how many barrels, I just took delivery of my 4th Panda and the barrels interchange equally well between them all. To the best of my knowledge there are no special tricks to getting it right. Screw the bbl. on, chinch it tight and go have fun.
I hope this helps,
Lloyd
I hope this helps,
Lloyd