darren m Posted March 7, 2006 Report Share Posted March 7, 2006 how do you measure choke sizes in millimetres please ie. what size are the different chokes . cheers Quote Link to comment Share on other sites More sharing options...
Axe Posted March 7, 2006 Report Share Posted March 7, 2006 The most accurate way to measure something like this is to use a micrometer. If your just after what choke you have fittd etc, buy a choke gauge, they are cheap as chips. Or take it in to your local gun shop, they will be able to tell you. Quote Link to comment Share on other sites More sharing options...
Dunkield Posted March 7, 2006 Report Share Posted March 7, 2006 As Axe says, you would need either an internal micrometer or a venier caliper. Gunshops (good one at least) will have these or a choke gauge which is just a cylinder of metal that is stepped down with sizes written on it. There is a bit more detail here: Chokes Quote Link to comment Share on other sites More sharing options...
Country_est Posted March 7, 2006 Report Share Posted March 7, 2006 Could alway buy a choke gauge off Elma_Fudd, was selling some in the for sale section for £5. I got one to check what my chokes were across the 5 guns I have. PS whilst this will give a close indication it will not be "perfect" as for that the choke restriction is dependant on the nominal bore of the shotgun, but noramly it is taken as .729" (I think from memory) Cheers Trev. Quote Link to comment Share on other sites More sharing options...
darren m Posted March 7, 2006 Author Report Share Posted March 7, 2006 allready got a choke gauge , thats the trouble as it does,nt correspond with my mates gauge , both say different , i think its either 3/4 and full or full and extra full. there are no marks on the barrel or action to say , except the one you mentioned .729 Darren . Quote Link to comment Share on other sites More sharing options...
sandy22 Posted March 7, 2006 Report Share Posted March 7, 2006 The site Stuart gives is a good little summary. Measure your gun and compare to that. Otherwise pattern it properly and see what the real choke is irrespective of the constriction. FWIW an ordinary gun is much more likely to be 3/4 & Full than Full & X-full. Quote Link to comment Share on other sites More sharing options...
Country_est Posted March 8, 2006 Report Share Posted March 8, 2006 Darren, Somewhere on the barrel should be a * or X or stamp mark, usually on the breech block underneath somewhere, probaby where the other proof marks are. 1 = f ull 2 = 3/4 3= 1/2 4=1/4 5=i/c Cheers Trev Quote Link to comment Share on other sites More sharing options...
henry d Posted March 8, 2006 Report Share Posted March 8, 2006 From the Baikel question......Get 2 paper refuse sacks and fire your chosen cartridge out of each barrel at 40 yds and check to see how many pellets(percentage wise)fit into a 30" circle,that will tell you better than any gauge. Quote Link to comment Share on other sites More sharing options...
Riothedog Posted March 8, 2006 Report Share Posted March 8, 2006 You can't really measure chokes in a numerical format. It's relevant to how and where they start etc. It was in the old days, but now with screw in they make Beretta chokes for a beretta gun. That kind of thing I suppose you can but they react differently in different barrel lengths, where they start etc. Could be ********. D Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.