MOBIL CHOKES: CANUCK O/U 12 ga

ambishooter

ambishooter

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Trap and Skeet newbie here. Got a decent deal on a Canuck O/U last year. Uses flush mobil chokes, a bit tedious to remove and replace as needed. I saw some Beretta Extended Mobil Chokes, so as Stoeger Extended Mobil Chokes that might be an easy install and remove. Has any of fellow Canuck O/U owners tried any of these extended choke tubes in Canuck's O/U?
 
I don't own a Canuck but as a long time shotgunner I can tell you that extended tubes will be only slightly easier to remove and install than flush tubes. Not only that but you will only have to change tubes going from trap to skeet or vice versa if those are the only games your playing. Essentially you will chose the tubes you want to use then not change them again until you change games. Sporting clays may be the exception to this rule but it is possible to shoot entire rounds of sporting without changing tubes too.
 
If I am buying chokes tubes, it will be extended tubes, just because they are easy to check for tightness without tools. As for making them easier to remove, I use antiseize on the threads, and have never had a stuck choke tube. And a good choke wrench also makes the job easier, I hate using the flat pieces of steel that some manufacturers enclose with their shotguns. The wrenches that fit inside the tube, with four dogs to engage the slots, are much easier to use, and if you don't lube the tubes properly , they tend to be much more effective at removing the choke tubes.
 
Another purpose as to why I am interested in extended chokes is the flushed chokes tends to come slightly loose after 4-5 round. When shooting trap, I alternate barrels after each round. A drop of Blue Thread Locker seems to work with a slight drab of anti seize lube. And yes, it is the convenience of hand tightening and removal being the main advantage against flushed chokes.

Sorry, not Thread Locker but a somewhat Tamper Indicator that does not provide a seal compared to a Loctite Thread Locker.
 
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A choke should have no problem staying in without any assistance.

Extended chokes are the cat's ass IMO. Better patterns and easy to check it's still tight.
 
People freak out about their choke tubes coming loose. In many cases, their actions cause more damage than good. Overtightening the very fine shallow thread can damage them and possibly cause the tube to seize. Putting lubricant on the threads leaves them even more vulnerable to overtightening damage.
Back in engineering school they taught us that low pitch threads were essentially self locking. I put a light coating of oil on the choke exterior, both threaded and non threaded portions, and lightly tighten the choke (just snug = 2 ft-lb). I will check it once or twice over the season of several hundred rounds. The odd time, the choke is slightly loose. I suspect this is due to thermal expansion and contraction. I'll snug it up and carry on for the remainder of the season. I've yet to have a choke fail over 25 years of shooting various shotguns.
 
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Brilliant idea from a guru pointing to metal characteristics under changing thermal conditions.

Falconflyer said:
Your overthinking this. With extended tubes just put anti seize or grease which is what I use and check them once in a while. Just remember that if you tighten them good with the barrels hot they will be hard to loosen when the barrels cool.
Click to expand...
 
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