20ga Browning Invector/Win Anaconda Short Range 0.630 (5603) Browning You will see a pattern

You will see a pattern similar to an Improved Cylinder constriction choke on paper

On paper you'll see a pattern similar to an Full‑like choke

Porting: Ported

While the paper pattern may resemble a tighter constriction

20ga Browning Invector/Win Anaconda Short Range 0.630 (5603) Browning You will see a patternAnaconda Short Range 20GA Browning Invector Anaconda Short Range engineered to deliver consistent, reliable performance and even patterns with a shorter shot string. This choke offers an effective range of 2040 yards. On paper you'll see a pattern similar to an Improved Cylinder like choke, but due to the patented "Coil Zone", that is a Precision machined channel with a left twist to counter the natural right spin of the ammunition load, the shot