I have the Bonacci goods chassis on my 177 avenger and have been chasing some accuracy issue that i have noticed right after filling the gun. It usually takes about 30 shots for the gun to get into a sweet spot. I set my tune with my chrono right after filling, so I dont think thats it, but something i should look into more.
Anyhow, I did notice that the long air tube fill cap does press on the barrel shroud. I figured that it must apply different force to the barrel as the pressure decreases from 300bar. Thats not good, so i moved it to the bottom tube location.
After that, the problem seemed to actually get worse but it would still get into a sweet spot. I then noticed that if there is any force on the barrel shroud, it will move and then be held there by the triple clamp. The clamp actually seems to make it worse! Without it, the barrel can bounce back...
I think the factory stock adds some support to the triple clamp, so this isn't as much of an issue. But that factory stock is quite flimsy as well.
So I decided to fix this by making the most overkill triple clamp ever... its 3" wide and has 8 bolts clamping it. I have to say, this has made the barrel so rigid that I don't think its ever been this way. Everything is so locked together its amazing! I cant wait to go shoot this thing.
Anyhow, I did notice that the long air tube fill cap does press on the barrel shroud. I figured that it must apply different force to the barrel as the pressure decreases from 300bar. Thats not good, so i moved it to the bottom tube location.
After that, the problem seemed to actually get worse but it would still get into a sweet spot. I then noticed that if there is any force on the barrel shroud, it will move and then be held there by the triple clamp. The clamp actually seems to make it worse! Without it, the barrel can bounce back...
I think the factory stock adds some support to the triple clamp, so this isn't as much of an issue. But that factory stock is quite flimsy as well.
So I decided to fix this by making the most overkill triple clamp ever... its 3" wide and has 8 bolts clamping it. I have to say, this has made the barrel so rigid that I don't think its ever been this way. Everything is so locked together its amazing! I cant wait to go shoot this thing.
