Choke explanation

L

LBSSLB

New member
I am getting an o/u 12 gauge ready to take out on some coyotes and fox. The gun takes American Arms chokes and I have very few option other than online ordering and also very few manf options( trulock and Carlson). First I intend to have one barrel at modified, which appears to be affective to 30 -40 yards. Secondly I need to buy a tighter choke for the other barrel. Sooooo here is the question, when looking at turkey chokes which apppear to be my only tighter option, they are all listed with .055,.060,.065,.070 etc.... Now is this indicating that the chokes are increasingly getting tighter? Also can they all be used with 3.5"? I don't intend to use the 3.5" just curious.


Will be shooting dead coyote at 3"


Thanks!!
 
A 12 gauge bore is based on .730 if it hasnt been back bored, those choke numbers go like this, .655-.665 just subtract and you will get your constricton of the choke.
 


Nobody can answer your choke load combination question except for you.

Meaning; you have to see what your gun does on paper at various distances.

For example; my two shotguns perform completely different using the same combination. IE/ My Mossberg shoots best using Dead Coyote#4 Buck and a Carlson Coyote Choke. 21 hits on a 10 inch circle@40 yards.

While using the exact same combination, my Remington can only manage 6-8 hits@40 yards. So I changed up the load to a 3 1/2 "T" load and can get 25 hits@40 yards.

Point being; we can only give you an opinion and it is up to you to do the leg work and get the facts.

Good Luck.
 
Thanks for the replies gentlemen, but my question not what will pattern best it was what does the number difference indicate.
 
Arizona Bushman is mistaken (or perhaps unclear). The numbers you are seeing are for the amount of constriction, in inches, each choke represents. A 12ga bore being .729", a choke of .055 would be a final choke/bore diameter of .674", for instance. The larger the number, the tighter the choke. ie: the greater the constriction in regards to the nominal bore diameter of .729".

On the other hand, he is exactly right in regards to pattern testing your gun. Every gun and every tube will pattern just a bit differently. A gun may have a favorite brand of shells and shot size for every tube you put in the end of the barrel. I have noted this with several guns.
 
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Originally Posted By: RonO.Arizona Bushman is mistaken (or perhaps unclear). The numbers you are seeing are for the amount of constriction, in inches, each choke represents. A 12ga bore being .729", a choke of .055 would be a final choke/bore diameter of .674", for instance. The larger the number, the tighter the choke. ie: the greater the constriction in regards to the nominal bore diameter of .729".

On the other hand, he is exactly right in regards to pattern testing your gun. Every gun and every tube will pattern just a bit differently. A gun may have a favorite brand of shells and shot size for every tube you put in the end of the barrel. I have noted this with several guns.


YES!!! Thank you that is what I wanted to confirm. I am familiar with testing diff loads with diff chokes, just needed to confirm what I was looking at before I could make any decisions.


THANKS TO ALL WHO REPLIED I APPRECIATE YOUR HELP
 
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To echo what Tunered said, take the number and subtract it from the original bore size, so as the number goes up, they get tighter.

chart_zps5b80b550.jpg


Here is a great explanation from Briley chokes.
http://www.briley.com/understandingshotgunchokesabriefexplanationbybriley.aspx

As for your question about the 3.5in load, it should shoot just fine. The longer shells really just pack in more shot, not necessarily more power/speed, unless the shell is designed for just that, such as is the case from Hornady's predator loads or something similar to that. There may be a restriction on whether the choke can handle steel shot, so check with the manufacturer.
 
Originally Posted By: LBSSLB

Will be shooting dead coyote at 3"


Thanks!!

Sorry guys, I mis-interpreted.

My comment was based solely on the above statement;

How did you come up with this conclusion?

Was is based on Hevi-Shot advertisement?

Was it based on what someone else recommended?

Or was it based on personal research and development using your gun in the environment that you primarily hunt in?
 
I hate to pop anybody's bubble, or start any arguments here, but the number you see stamped on the choke tube is the actual inside diameter of that tube. In other words a .660 choke means that said choke tube has inside diameter of .660.
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Originally Posted By: tuneredYou didnt pop anybodys bubble, thats the same thing everybody has said.
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No sir, not really. Look at the above post's again. Some are saying that the .660 tube means that the tube is .660 of Constriction. A very large difference sir.
 
Doesn't matter what they are measuring as long as we know what it indicates.

As far as shooting dead coyote, it's going to be where I star with pattern testisng with the new choke, also it was listed in case it would not work with particular size chokes. I know not to use it if it patterns poorly but still has a cool name :p
 
Trulock will let you return the choke even if you used it for the cost of shipping.

Call trulock or email and ask them what they recomend to start.

The carlson dead coyote for most guns is .665 and it works good in my beretta.

It is always just a guess and you MUST pattern your gun.
 


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