Originally Posted by hmangphilly
Have you got a sooper dooper method for this pellet fit process mr tench .
I'm getting there but it's a right faff
You are right it is a right faf! you have to clock the barrel perfectly central, not easy to do on rifling! then bore the absolute smallest dia possible that removes all the rifling to create a smooth section as small as possible for the skirt to seal in. JSB pellet skirts measure over the nominal bore size but a larger dia requires a steeper taper to blend into the rifling. Then taper this into the rifling with the taper starting just in front of where the skirt of a loaded pellet sits. I do it with a very small boring bar and use about 2 degree taper (4 deg included angle). then polish it so a pellet glides in super smooth but shows no day light around it when sat in the loaded position.
Far too time consuming to do as a customer job but well worth the effort as it massively reduces fps variation.
HFT, for people with only 2 buttucks!
VooDoo TwoTwo The next chapter.