Invector is a brand not a choke. Invector is a brand not a choke.
Yes, they describe the various chokes.
Modified.
By opening up or constricting.
they help with patterns of shot and accuracy of slugs
A good basic article on chokes http://www.ssaa.org.au/stories/shotguns-a-beginners-guide-to-shotgun-chokes.html
Try e-gunparts.com
Refers to the amount of constriction at the muzzle.
Herter's sold various maker's products with their name on them.
Yes chokes are designed to tighten shot patterns.
I paid 425 with the camo , the slugbarrel and chokes
With standard chokes, Full Choke is the tightest. However, there are non-standard chokes for SOME shotguns (used by turkey hunters) that are Extra Full Choke.