ferguson_tom Posted December 29, 2011 Report Share Posted December 29, 2011 I understand choke sizes and what they do now but can someone please put into plain english how the two different ways of describing them relate to each other as in. Cylinder, improved cylinder, 1/4, 1/2, 3/4, Full Cylinder, skeet, improved cylinder, modified, improved modified,, full My main question is what does 1/4 1/2 and 3/4 relate to? also is skeet inbetween cylinder and improved cylinder? Please excuse the basic question but i have searched on the internet and cant find an answer. Quote Link to comment Share on other sites More sharing options...
twitchynik Posted December 29, 2011 Report Share Posted December 29, 2011 Take a read through this. Might help. http://www.briley.com/understandingshotgunchokesabriefexplanationbybriley.aspx Quote Link to comment Share on other sites More sharing options...
EdSolomons Posted December 29, 2011 Report Share Posted December 29, 2011 Basically full = 40thou tighter than the bore. However choke is a performance, not a measurement so to find the true performance of your choke and shell combo you need to pattern it and do some maths. For example the 3/4s I use pattern just over full with the shells I shoot. Do it once, decide half is the best bet, screw them In and never worry about it again. Quote Link to comment Share on other sites More sharing options...
timps Posted December 29, 2011 Report Share Posted December 29, 2011 (edited) My main question is what does 1/4 1/2 and 3/4 relate to? also is skeet inbetween cylinder and improved cylinder? Please excuse the basic question but i have searched on the internet and cant find an answer. this is the order, Cylinder Skeet 1/4 <...............> improved cylinder Light modified 1/2 <...............> modified 3/4 <...............> improved modified Light full Full Extra Full The (1/2 <...............> modified) etc are not exactly the same size but equivalent UK vs USA sizes How they actually pattern in relation to each other is a whole other question. Edited December 29, 2011 by timps Quote Link to comment Share on other sites More sharing options...
HDAV Posted December 29, 2011 Report Share Posted December 29, 2011 this is the order, Cylinder Skeet 1/4 <...............> improved cylinder Light modified 1/2 <...............> modified 3/4 <...............> improved modified Light full Full Extra Full the 1/2 <...............> modified etc are not exactly the same size but equivalent UK vs USA sizes How they actually pattern in relation to each other is a whole other question You forgot: 3/8 5/8 It's the constriction compared to the bore and how that effects the pattern. Quote Link to comment Share on other sites More sharing options...
timps Posted December 29, 2011 Report Share Posted December 29, 2011 (edited) You forgot: 3/8 5/8 It's the constriction compared to the bore and how that effects the pattern. Nope did not forget as he did not ask for those, but being diligent here you go USA<--------------------->UK Cylinder<------------------->Cylinder Skeet<---------------------->Imp. Cyl. Improved Cylinder<--------->1/4 Light Modified<------------->3/8 Modified<-------------------->1/2 Light Imp. Mod.<------------>5/8 Improved Modified<--------->3/4 Full<------------------------->Full edit to change right way round due to zee Germans edited to add: My point about how they pattern was in relation to different manufactures of chokes for the same gun. I had a set of Briley modified and improved cylinder that patterned a lot tighter than the original Browning Midas modified and improved cylinder. So what is written on them is not always an indication of how they pattern but will be a guide if you were replacing from the same manufacturer. Edited December 29, 2011 by timps Quote Link to comment Share on other sites More sharing options...
EdSolomons Posted December 29, 2011 Report Share Posted December 29, 2011 I don't want to be pernickety, but.... Think light imp mod = 5/8 and imp mod = 3/4 But half choke sizes are for women and gays so don't worry about it! Quote Link to comment Share on other sites More sharing options...
timps Posted December 29, 2011 Report Share Posted December 29, 2011 (edited) I don't want to be pernickety, but.... Think light imp mod = 5/8 and imp mod = 3/4 But half choke sizes are for women and gays so don't worry about it! Could be right just got the definitions of zee Germans linky so might be lost in translation and it was a 20 bore Have changed it now, should have checked, simple maths :blink: Edited December 29, 2011 by timps Quote Link to comment Share on other sites More sharing options...
officerdibble777 Posted December 30, 2011 Report Share Posted December 30, 2011 what about 7/8 or light full if wer'e listing them all Quote Link to comment Share on other sites More sharing options...
figgy Posted December 30, 2011 Report Share Posted December 30, 2011 (edited) Timps what about 7/8 choke and berettas red skeet choke less than bore more open than cylinder if your being diligent. ATB figgy Edited December 30, 2011 by figgy Quote Link to comment Share on other sites More sharing options...
EdSolomons Posted December 30, 2011 Report Share Posted December 30, 2011 Isnt the red one skeet and the blue one cyl? This is going to get confusing for the guy asking the question.....! Quote Link to comment Share on other sites More sharing options...
poontang Posted December 30, 2011 Report Share Posted December 30, 2011 This is my thoopa doopa skeet choke. Quote Link to comment Share on other sites More sharing options...
figgy Posted December 30, 2011 Report Share Posted December 30, 2011 This is my thoopa doopa skeet choke. Love it but could only get one in my ou, ok for a semi tho. ATB figgy Quote Link to comment Share on other sites More sharing options...
station Posted December 30, 2011 Report Share Posted December 30, 2011 Love it but could only get one in my ou, ok for a semi tho. ATB figgy 24" barreled M2 and one of these - watch the competition duck on the Skeet layout Quote Link to comment Share on other sites More sharing options...
figgy Posted December 30, 2011 Report Share Posted December 30, 2011 Isnt the red one skeet and the blue one cyl? This is going to get confusing for the guy asking the question.....! Yes red is skeet in beretta but it has less constriction than the blue cylinder choke berettas purple skeet choke is what we normally think of as skeet between cylinder and qaurter. And muller chokes are U1 U2 U3 U 4 to muddy the water even further. It get really confusing for a beginner. ATB figgy Quote Link to comment Share on other sites More sharing options...
timps Posted December 30, 2011 Report Share Posted December 30, 2011 Timps what about 7/8 choke and berettas red skeet choke less than bore more open than cylinder if your being diligent. ATB figgy I was originally replying to the OP’s question. My main question is what does 1/4 1/2 and 3/4 relate to? also is skeet inbetween cylinder and improved cylinder? Please excuse the basic question but i have searched on the internet and cant find an answer. Not for every choke that is made, my diligent remark was because HDAV wanted 3/8 & 5/8 adding to the list but the OP did not ask about those. I just went for the universally accepted UK to USA equivalent not a manufacturers take on it, so as not to confuse matters. But please feel free to enlighten the OP with your full list. Quote Link to comment Share on other sites More sharing options...
ferguson_tom Posted December 30, 2011 Author Report Share Posted December 30, 2011 Thanks everyone and especially the list of equivalents, I am going clay pigeon on monday for first time with it so just wanted some inclination of the best chokes to use for starting off (quite a wide pattern i think) Am I on the right lines if i go for skeet in top and mod in bottom, firing top first? The chokes that come with the gun were cylinder, skeet, mod, imp. mod, and full plus 2 briley extended chokes mod and imp mod. I dont want to get too hung up on this but want to get my head around them best i can, i will try and get time to test them out with bits of cardboard. Quote Link to comment Share on other sites More sharing options...
poontang Posted December 30, 2011 Report Share Posted December 30, 2011 Choke is just a constriction relevant to the bore. This video gives a fairly good account of how it works. There are about 5 videos in the series (on You Tube) and well worth a watch if you want to understand choke and how it works. http://www.youtube.com/watch?v=tugOu1HQp-Q&list=PLBB445632FFFBD345&index=4&feature=plpp_video Quote Link to comment Share on other sites More sharing options...
HDAV Posted December 30, 2011 Report Share Posted December 30, 2011 It's conventio to fire bottom first, what are you shooting? Skeet? Trap? Sporting? Skeet as open as you have, trap tighter (1/2-3/4 normally) sporting your choice as you'll have a mix of birds to shoot. I would guess the previous owner liked to shoot DTL or at least tighter chokes as you have the briley chokes. I was shooting DTL (a trap discipline) and skeet the other day and left my chokes in (1/4 & 3/8) still hit and missed on my performance not the chokes... Quote Link to comment Share on other sites More sharing options...
ferguson_tom Posted December 30, 2011 Author Report Share Posted December 30, 2011 (edited) ummmmm..... whatever is at hitchin on monday. As you have probably guessed quite new to this. Wouldnt top first make more sense as easier to reload if you only fire one shot? Not necessarily clays put on rough shooting. Edited December 30, 2011 by ferguson_tom Quote Link to comment Share on other sites More sharing options...
twitchynik Posted December 30, 2011 Report Share Posted December 30, 2011 ummmmm..... whatever is at hitchin on monday. As you have probably guessed quite new to this. Wouldnt top first make more sense as easier to reload if you only fire one shot? Not necessarily clays put on rough shooting. I'll be there Tom (along with a few others) and would say you'll be fine with 1/4 in bottom and 1/2 in top. Quote Link to comment Share on other sites More sharing options...
timps Posted December 30, 2011 Report Share Posted December 30, 2011 (edited) ummmmm..... whatever is at hitchin on monday. As you have probably guessed quite new to this. Wouldnt top first make more sense as easier to reload if you only fire one shot? Not necessarily clays put on rough shooting. The theory is that there is less muzzle flip shooting bottom barrel first as its more in line with the axis of the gun than the higher top barrel. The muzzle flip is more of an issue with DTL shooters than sporting shooters as they have full use of both barrels on one target so the less flip is a real benefit. Obviously on the 2nd shot muzzle flip is not an issue. I would use mod and the extended mod myself or skeet / mod and just concentrate on the shooting. Edited December 30, 2011 by timps Quote Link to comment Share on other sites More sharing options...
ferguson_tom Posted December 30, 2011 Author Report Share Posted December 30, 2011 Thanks for the explanation the muzzle flip makes a lot of sense, so i will go with the skeet/mod option then totally forget all about chokes and just have a good day shooting See you monday twitchynik Quote Link to comment Share on other sites More sharing options...
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