That makes sense. So answer me this:
It seems as though chamber pressure would be greatest shortly after ignition, and then tapper/curve off as a bullet moves down the barrel and creates more space for these gasses to occupy. Once the bullet enters the can, the can's job is to slow down the escape of these gasses/pressure to reduce noise.
After the pressure spike shortly after ignition, it doesn't seem like a can would create a "second spike", but rather stay at a high-ish pressure for slightly longer? How would that create sticky bolts on some rifles as the extra back pressure from the can would still be far less than what happens at ignition?
Not trying to be argumentative in anyway, just trying to expand my knowledge on the subject. Worse case is I do have a Reaper to use as well for volume shooting