View Full Version : Patternmaster choke tube loosens
05-17-2002, 09:13 AM
does anyone have a problem with the patternmaster choke tube loosening after a few rounds? what can i ###do about it?.
05-17-2002, 09:11 PM
Yeah, mine keeps loosening up also. ###All I do is keep tightening it up every so often. ###If you figure something out let me know.
05-18-2002, 12:00 AM
I've heard of some people using Loc-Tite on the threads of chokes that loosen, but before I'd try it I'd check to make sure it didn't cause a problem, such as rust.
Maybe GunDoc has a suggestion................
I am not a gunsmith, but here are my thoughts:
If this is the only choke tube you plan on using in this gun, have a gunsmith solder it in there for you.
If you use a variety of chokes, and don't want to make it permanent, I would avoid Locktite. I would probably use some blace silicone, very sparingly apply it to the choke tube threads, the put it in the gun. After tightening the tube in, make sure you get any excess off the outside and inside. Let that set up for 24 hours before shooting. That should solve the loosing problem without the possibility of making your choke tube un removoable with Locktite.
05-24-2002, 11:42 PM
as to the choke tubes loosening up after firing ?
with some choke tubes the threads are just a tad undersize and this causes them to fit loosely in the barrel threads
they do this to accommodate so many different gun makers thread sizes being close to the same , this way the chokes fit better in some guns that the choke thread dimensions are a bit tight in the barrel
most 12 gauge choke tubes are standardized to a 13/16 x 32 thread sizes which are supposed to measure .812x32 and i have seen many that measure as small as .807x32
this is the major thread dimension and you can see where one choke tube versus another may fit tighter or looser in the particular gun
if you are having trouble with the tube backing out after firing then you might want to apply a product called ''Vibra Lock'' to a small section of the threads and this will keep it from backing out easily but can still be removed if you want it out.
this thread locker does not dry hard as it stays kinda rubbery but interferes with the thread fit to make it tighter
you will see a lot of this stuff used in the Archery field as it is used to keep parts from vibrating loose on bows
another thing you may want to try is using anti-seize on the threads of the choke tube itself as it will make the tube have a tighter fit in the barrel threads and this may be enough to keep it snug
in most cases the choke tube usually tightens upon firing the gun several times so using only hand pressure to tighten it is best and also keep a check on it as if it happens to back out too far then it is likely that it could be ruined by the shot charge hitting the skirt area of the tube and causing problems not wanted.
hope this helped a bit,
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