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Old June 24, 2012, 10:27 PM   #1
NavyGuy556
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Choke tube constrictions??

Can somebody provide something like a chart showing what a really "loose" constriction for a choke tube is and a really tight choke tube constriction? I'm looking into getting a new ported choke tube for trap shooting and I have no idea what is perhaps too tight or too loose. If someone could regurgitate their knowledge on choke tube constrictions and what is preferred by most especially for trap, I would be one happy Sailor!! Hahaha!

Thank you very much!!
MA3 Drake Tilson, USN
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Old June 24, 2012, 10:38 PM   #2
TheKlawMan
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For 16 yard trap the most common choke is a modified.
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Old June 25, 2012, 07:38 AM   #3
maierar
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http://www.briley.com/2009/sportingclays.html
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Old June 25, 2012, 08:07 AM   #4
oneounceload
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Save the expense on the ported part - just a bigger mess to clean afterwards

What chokes does your gun come with now? Have you patterned them to see how they perform? Many times, the factory tubes are as good, if not better, than the after market ones.

Assuming normal bore diameter, a constriction of .020, aka Modified, should work from the 16 yard line
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Old June 25, 2012, 01:18 PM   #5
BigJimP
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I shoot a Modified choke for Trap singles ...from the 16 yd line - to the 20 yd line. My primary shell in a 12ga is 1 oz of 8's at 1225 fps...

Just a Note....but you stand 16 yds behind the Trap house ( at 16 yd singles ) and as you call for a target ...it will fly about 20 - 25 yds before it starts to level off and fall..so call it 35 yds ....ideally you want to shoot it when its still under power and rising... and you select your choke - to give you a 30" pattern ( with no holes in it big enough for a clay to fly thru unscathed --- at the intended kill range ) ..and at 35 yds a Modified choke in most guns will give you a good dense 30" pattern. In general, you need 3 or 4 pellets of a load of 8's to break a Trap target at that range...( 1 oz loads have about 409 pellets of 8's in a shell )....you can shoot 9's at 16 yds as well ....or 7 1/2's ...

Last edited by BigJimP; June 25, 2012 at 01:28 PM.
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Old June 25, 2012, 01:58 PM   #6
zippy13
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Quote:
My primary shell in a 12ga is 1 oz of 8's at 1225 fps...
I prefer a standard 2-3/4 dram load of 1-1/8 oz of #7-1/2s for ATA 16-yard events. It has more pellets and less recoil. For practice, just about anything that goes bang will work at 16-yards. YMMV. Perhaps BigJim's inertia gun wont's cycle a standard load, so he has to load heavies.
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Old June 25, 2012, 02:38 PM   #7
BigJimP
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Ok, let the abuse begin ....

I re-load 1 shell in a 12ga for everything...sporting clays, skeet, trap singles, Continental Trap, etc.....so I stay with the one shell and I do load it with
1 oz of 8's @ 1225 fps....( and I shoot it in my Trap guns, and my general use sporting clays guns....and the Benelli SuperSport as well ...and occasionally for Skeet ..although I shoot way more skeet with a 20ga or 28ga or the .410 these days..vs a 12ga.)

But yes, I'm lazy ....so I just load 1 shell ...that I know my Benelli will run 100% ( if or when I choose to shoot it ).....
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Old June 25, 2012, 03:18 PM   #8
TheKlawMan
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Come on Jim. Is it being lazy or is it just too difficult to remember more than one recipe?

You did say "let the abuse begin."
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Old June 25, 2012, 04:04 PM   #9
oneounceload
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My main reload is 7/8 at 1250 - because lead costs too damn much;
Also playing with 3/4 @ 1225 - VERY soft
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Old June 26, 2012, 01:40 PM   #10
BigJimP
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and I am lazy .....but when I had 5 or 6 different 12 ga loads....( some in 9's, some in 8's, some in 7 1/2's....and some at 1200 fps, some at 1225 fps, some at 1300 fps ...and some at 1 oz and some at 1 1/8 oz....

invaribly / while they were marked in boxes or quart bags....sometimes they got in my vest ..and then were mixed up when I dumped the pockets out of my vest. So I went to marking the base with sharpies....really hot ones were purple, semi-hot ones were red, some were yellow, some blue, some greeen .....( then I got the codes screwed up ).../ or I shot in some downpours or in snowstorms...and some of the marks came off....it was just a hassle ....especially once I reloaded them / I had to wipe off the old marks ...and remark all the bases again with a sharpie...

so now, in 12ga....my reloads are all 1 oz at 1225 fps ....and if, on a sporting course, I think I need a box or two of 9's --- or a box of Nitro 7 1/2's ( to clear my sinuses ) ....then I have some of each in new factory ammo ....and just recycle the hulls. Then if one of the kids - or myself - dumps them back into a general box at the vehicle ...at least I can sort them out / because I can identify the new shells - and they're all marked / and I can separate them all out.

and 99.9% of the time, if I can't break it with 1 oz of 8's ....I probably can't break it with another shell either...
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Old June 26, 2012, 04:08 PM   #11
oneounceload
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And I would dare you or anyone else, Jim, to say they can tell 25fps difference on lead at any target at any distance
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Old June 26, 2012, 06:00 PM   #12
BigJimP
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I agree Oneounce ...I can't tell the difference in lead...with only 25 fps difference in the shells. ( But they crimp real nice / so I'm not changing the bushing in the 12ga loader...) ..../ told you I was lazy ...
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