Tominator Posted June 2, 2005 Report Share Posted June 2, 2005 I'll assume you mean for a 12 guage: True Bore Dia. .729 Cylinder Bore .000 - .729 Skeet I .005 - .724 Improved Cyl. .009 - .720 Skeet II 0.12 - .717 Modified 0.19 - .710 Improved Mod. .025 - .704 Full Choke .035 - .694 Extra Full .040 - .689 No, I'm not as smart as AJ, I just looked it up. Here's the site: Choke Specs. Quote Link to comment Share on other sites More sharing options...
too_pointer Posted June 2, 2005 Report Share Posted June 2, 2005 Re: Question on choke constrictions I'm not sure if that is standard for all makes or just certain ones. My turkey choke for my Rem. is .665 I believe. too_ Quote Link to comment Share on other sites More sharing options...
AJ Posted June 2, 2005 Report Share Posted June 2, 2005 Re: Question on choke constrictions All info is correct. There is no set standard for constriction equalling a certain choke. It all depends on bore diameter and how the choke is designed. There can be a few thousandths of difference between manufacturers but still get the same performance percentage wise. This is what constriction Briley lists for their chokes: Cylinder .000" Diffusion .005" Skeet .005" Improved Cylinder .010" Lite Modified .015" Modified .020" Improved Modified .025" Lite Full .030" Full .035" Xtra Full .040" Super Turkey (Straight Rifled) .665" diameter Turkey Hevi-Shot 12 ga. .675" diameter Slug 12 ga. (Sabot - Twist Rifled) .720" diameter Trulock advertises: choke---constriction....pattern percentage in a 30" circle CYLINDER .000" 40% at 40 yds- 70% at 25 yds Skeet .005" 45 at 40 yds- 75 at 25 yds Improved Cylinder .010" 50 at 40 yds Skeet 2 [light mod] .015" 55 at 40 yds Modified .020" 60 at 40 yds Improved Modified .025" 65 at 40 yds Full .030" 70 at 40 yds Extra Full .040" 73 at 40 yds Turkey .045" + 75+ at 40 yds Quote Link to comment Share on other sites More sharing options...
AJ Posted June 3, 2005 Report Share Posted June 3, 2005 Re: Question on choke constrictions You are shooting #3 steel for geese? WOW! Thats some small stuff for 40 yard performance. I shot BBB and T for geese and #2 for ducks. I used a modified choke and it was acceptable. Quote Link to comment Share on other sites More sharing options...
Tominator Posted June 3, 2005 Author Report Share Posted June 3, 2005 Re: Question on choke constrictions I'm not the biggest waterfowler, but #3's steel out to 40 yards for geese, even at the velocities you mention, and I do believe you will end up with a few cripples. Maybe step up to Tungsten or Hevi-shot? Or like AJ mentions, a bigger pellet. Quote Link to comment Share on other sites More sharing options...
7th Posted June 5, 2005 Report Share Posted June 5, 2005 Re: Question on choke constrictions AJ, for that range and game, I agree. Mod works well for the #2s but I open it up some more when I use the Ts, just works better for me that way. Quote Link to comment Share on other sites More sharing options...
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