In my Grand Prix, i usually clean the barrel after 500 shots. The better thing is that after cleaned it, i only spend 5-10 shots to reach perfect accuracy.
I own a panther fac, and the barrel is totally diferent, clean after 250-300 shots and need a minimum of 30 - 50 shots for a perfect accuracy.
The batch of the pellets is very important. Sometimes i have to use some tins only for training, because you could find very dirty pellets. I clean these tins with ultrasonic cleaner, and its really surprising the amount of lead particles remaining after cleaning in the bottom of the container.
Last edited by Pepone; 26th March 2012 at 10:26 AM.