Shotgun chokes, whether they be screw-in choke tubes or fixed-chokes (permanent part of the barrel) are used to control the diameter and density of the pellet pattern at a specific distance. Example: An improved cylinder (IC) choke would produce a larger diameter (more open) pattern at around 30 yards. This style of choke is used for close shooting at upland game birds over a pointing dog. A full choke (F) has a tighter constriction so the pattern would be smaller in diameter with more pellets so it would be a better choice for longer distances if hunting ducks or geese. It's always a good idea to "pattern" a shotgun barrel by shooting at a large sheet of paper at various distances to actually see how the barrel's choke and your chosen shotgun shell load react to one another. This way you can actually measure the results of your chosen combination.
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∙ 2010-01-09 15:46:02Cylinder bore- no choke at all.
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.
To focus the pattern of shot.
Yes- that is what the poly-choke is for.
Depends on the load and what the maker of the choke/shotgun say.
from smallest pattern to largest: full improved modified modified improved cylinder cylinder (no choke)
A barrel with a full choke.
Refers to the amount of constriction at the muzzle.
System of changable shotgun choke tubes made by Mossberg. Accu Choke is their brand name. A shotgun choke is a means of reducing the bore size at the muzzle of a shotgun, to produce shot patterns that spread to a greater or lesser degree.
Cylinder bore- no choke at all.
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.
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.
Depends on barrel length, choke, and size of shot used.
Usually modified, but each shotgun may be a bit different.
To focus the pattern of shot.
No
A pattern of a shotgun is determined by the choke at the factory. Some models have a variable choke that makes the user able to change the pattern.