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Choke???

2K views 9 replies 7 participants last post by  Trap2 
#1 ·
When talking choke size, why use #s such as .020 or.030--Why not full---mod---Im---etc---I need a chart to try to understand what they are talking about---

Things could be made so much eaiser---like spelling???I hear them shoot these #s and stand there and won't ? but I don't want to seem dumb---just say mod, etc.With the wads we use today I can't see how much difference the #s can make in the pattern---Just a full old fashion choke seems to break them all---Just wondering---sjb---
 
#2 ·
The term "full choke" can, and does, apply to many different chokes. A constriction number is more accurate than the term "medium light full choke" or "extra tight improved modified choke". Also, my tube labeled Improved Modified" throws a slightly tighter pattern than the tube labeled "Full Choke". I don't question how this happened, I just shoot the tighter choke.

Pat Ireland
 
#3 ·
Its just another way of saying the same thing.

Generally speaking:

0.035" constriction or thereabouts is a full choke

0.020" constriction or thereabouts is a modified choke

0.010" constriction or thereabouts is an improved cylinder choke

Where this comes in handy is for guns whose barrel bore diameter is not the standard 12 gauge 0.729"

What's important? How it breaks targets for you.
 
#6 ·
I've witnessed and or owned fulls from 54 thousandths down to 21 thousandsths when doing bore checks on various guns through the years. This is not how they patterned but rather what manufacture designed and marked. The term imp mod, mod and imp cyl via barrel marking can all be widely constricted. Manufacture, country of origin, specific model/time frame in manufacturing via particular company can and does lead to varied constrictions of what is labeled on barrel. Iam sure the 21 was never touched and was varified via Tom Seitz and I believe Bruce Bowen as original/unaltered. With such understanding I don't see how using rough terms such as full, mod, etc lets what know anything in terms of seeking knowledge. Atleast with a specific constriction designation you have a start at knowing somewhat of what may happen.
 
#7 ·
sjb,

The terms "full", "modified", etc aren't very useful in comparing chokes made by different manufacturers as there's no standard. For example; let's take a choke with .030" constriction......Briley calls it "Light Full", Beretta calls it "Improved Modified", Browning calls it "Full", Ruger calls it "Extra Full"......

John C. Saubak
 
#9 ·
What's also true is that a choke tube that measures 0.705" at the muzzle end might be a modified....might be a full.

Depends on the bore diameter of the barrel!
 
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