DEL123 Posted January 22, 2009 Report Share Posted January 22, 2009 I'v recently bought a second hand bettinsolli diamond shotgun,the lad i bought it off has miss placed the manual book for it. was wondering if anyone knows how to work out these choke sizes 1st one got BT-IC IC=lead M=steal 2nd lead only BT-IM, 3rd BT-CL CL=lead timder steel 4th BT-full lead only 5th BT-IM M=lead F=steel cheers Quote Link to comment Share on other sites More sharing options...
clayman Posted January 22, 2009 Report Share Posted January 22, 2009 Choke designations vary slightly according to manufacture and the market place the gun is intended for. It looks like your gun is designed for the US market, as the terms IC; Cl; IM etc are more commonly used there than the European 1/2 3/4 full etc Listed in order from most open to tightest. 3rd BT-CL CL=lead timder steel Cl = cylinder, no choke - driven game and skeet 1st one got BT-IC IC=lead M=steal IC = Improved Cylinder 5thou of choke ( sometimes 10th) sometimes also called a skeet choke or Improved skeet if Cy is used in first barrel 5th BT-IM M=lead F=steel This should be just M for modified or 1/2 choke, std sporting choke and average game. Max choke you can use for steel shot. 2nd lead only BT-IM, Improved Modified = 3/4 choke, 30thou - for trap disciplines and more distant game 4th BT- Full lead only = full choke, 40yd plus game and second barrel on tougher trap, ie O/T etc I note you listed IM (3/4) twice, but as 3/4 is usually lead only it is possinle thats a typo and the 5th choke you have is 1/2 or Modified, OK for steel and lead. Quote Link to comment Share on other sites More sharing options...
DEL123 Posted January 22, 2009 Author Report Share Posted January 22, 2009 Cheers mate much appreciated Quote Link to comment Share on other sites More sharing options...
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