monkeyboots Posted September 23, 2010 Report Share Posted September 23, 2010 was in with my gundealer tonite buying sum steel shot and he suggested i use 1/4 choke in my 391 he said it is the choke with 4 stars on it well ive 2 chokes here both with 4 stars but 1 choke has cl on it the orther has ic on it can sum please tell what 1 is 1/4 choke Quote Link to comment Share on other sites More sharing options...
GW80 Posted September 23, 2010 Report Share Posted September 23, 2010 Don't take this as gospel but i would say the IC is proper 1/4. I have the same gun and fire Steel through a LM (3/8) choke with no porblem! Quote Link to comment Share on other sites More sharing options...
VicW Posted September 24, 2010 Report Share Posted September 24, 2010 The choke with just 4 stars and ic is a 1/4 choke. IC is short for Improved Cylinder. The one with 4 stars and cl on it is a true cylinder (no restriction) choke. Vic. Quote Link to comment Share on other sites More sharing options...
clayman Posted September 24, 2010 Report Share Posted September 24, 2010 (edited) A choke designation on a gun or tube is a makers approximation on what MIGHT be thrown on a pattern plate. The ONLY way to know what you gun actually fires with any barrel or tube is to pattern plate it and back count the pellets in the plate. Different wads / shot size / powders / bore wear / cartridge brand and type / and manufacturing tolerances will ALL throw different end patterns. The stars / notches / names are just a guide - get out with some wall paper and shoot some patterns. See what every choke ACTUALLY does with your preferred loads. Learn about your gun and its chokes. Its very revealing and you will never regret doing it. Edited September 24, 2010 by clayman Quote Link to comment Share on other sites More sharing options...
Dekers Posted September 25, 2010 Report Share Posted September 25, 2010 A choke designation on a gun or tube is a makers approximation on what MIGHT be thrown on a pattern plate. The ONLY way to know what you gun actually fires with any barrel or tube is to pattern plate it and back count the pellets in the plate. Different wads / shot size / powders / bore wear / cartridge brand and type / and manufacturing tolerances will ALL throw different end patterns. The stars / notches / names are just a guide - get out with some wall paper and shoot some patterns. See what every choke ACTUALLY does with your preferred loads. Learn about your gun and its chokes. Its very revealing and you will never regret doing it. In addition, different manufacturers have a habit of making 1/4 or 1/2 or whatever slightly different dimensions anyway. A choke measure can be a useful tool at times, and not too expensive...and there is always the old trick of sticking your finger down the choke for comparison.....OFF the gun of course! Quote Link to comment Share on other sites More sharing options...
Cosmicblue Posted September 25, 2010 Report Share Posted September 25, 2010 A pattern plate experience is very revealing - each of the lessons I've had with Carl Bloxham have had a session shooting his plate - a old oil tank with emulsion paint on it. You certainly walk away knowing that it's perfectly possible to be 'right on' a target and yet there are holes in the pattern big enough for a clay to slip through unscathed. Quote Link to comment Share on other sites More sharing options...
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