At link down is the barrel contacting the VIS? If not it is stopping on the link and that condition will break links, guaranteed!
Paint the back of the feet with a marker and put the top end on the frame without the recoil system. Move the slide to the rear and tap the muzzle a few times with a plastic or leather hammer. Remove the top end and look at the VIS and the back of the barrel feet for contact marks. If you don's see any the barrel is not moving far enough to the rear and is incorrectly fit.
If it is stringing vertically as it warms up check for barrel springing. Take the top end off the frame and remove the recoil system. Press the barrel up into the slide lugs. Does it stay there or "spring" back down? If it is springing the front of the barrel is not fit correctly.
I have searched and come up dry.
Metaloy (Chris Peters) still isn't taking work in. I've heard/seen rumors that Tripp is doing hard chrome for Atlas. I have a project in the shop now that the customer wants hard chromed. Who do you guys recommend??
Thanks for the help.
Can't really tell where the crack is in the pic.
I have seen cracks at the front of the extractor tunnel, on the bottom, and have stop drilled them. I have a personal pistol that did that and I drilled it. No problem.
Extreme Engineering, hands down. I have used them in all of my builds since 1995.
Cylinder and Slide as well as Brazo's, and many others, are EE parts.