[cwtech]

Unable to shoot or pattern at this time, so my question is theoretical.

I have 2 barrels marked FULL choke. ....One barrel has .034" constriction, other barrel has .040" constriction. ...Both have same bore diameter & length.

Will a .006" difference in constriction have a significant affect on pattern (assuming same gun, distance & loads) ?

Thanks!

 

[MTA Tom]

Unable to shoot or pattern at this time, so my question is theoretical.

I have 2 barrels marked FULL choke. ....One barrel has .034" constriction, other barrel has .040" constriction. ...Both have same bore diameter & length.

Will a .006" difference in constriction have a significant affect on pattern (assuming same gun, distance & loads) ?

Thanks!

Maybe.
Only one way I know to tell, and then only for the loads tested.

 

[Shoot'em up]

So many factors play into this but i see what you’re going for. Assuming all things exactly the same except for .006 constriction differential I think you you would see very minimal difference at 40 Yards. Having .034 of an inch constriction will deliver more than enough of a dense pattern, approximately 70 percent of a shell's total pellets in a 30" circle at 40 yards. Don’t overthink chokes. In my opinion most of the time when you miss a target it’s not going to be by an inch or 2 it’s going to be by feet.

 

[lt0026]

Bore diameter and choke constriction. Do the math and then see what it looks like on paper.

 

[pheasantmaster]

Unable to shoot or pattern at this time, so my question is theoretical.

I have 2 barrels marked FULL choke. ....One barrel has .034" constriction, other barrel has .040" constriction. ...Both have same bore diameter & length.

Will a .006" difference in constriction have a significant affect on pattern (assuming same gun, distance & loads) ?

Thanks!

Probably not enough difference that one will gain or cost you a target over the other.

You will need to shoot alot of patterns (correctly) to prove the deficiency in one over the other unless an underlying circumstance is present.

 

[TORC12]

Use the one that give you the best pattern at 40 yards and shoot it.

 

[timb99]

Use the one that give you the best pattern at 40 yards and shoot it.

Most people have neither the time nor inclination to do it right.

Here's what "right" looks like:

Pattern Testing - West Coast shot versus STS shot in a Handicap Reload

 

[Steel Charlie]

Will a .006" difference in constriction have a significant affect on pattern (assuming same gun, distance & loads) ?

Absolutely ! ! ! And the more you want it to the more effect it will have !!

and you can take THAT to the bank!!!!