I ran another couple hundred rounds through the Versa-Max shotguns on Friday.
First, I did a test. I shot one slug at a time, 5 times each after a field strip from the totally stock 22" tactical. Then I put the one piece tube on and again shot one round at a time with field strips in between. Took about an hour to shoot 10 slugs with 9 field strips and reassemblies. Standard IPSC target, B&P low recoil slugs, POA top of "A", 45 yards, off-hand.
Stock VM 5 slugs group.
One piece tube group.