doublegunshop.com - home Forums General Discussion DIY Gunsmithing @ doublegunshop.com Superposed Trigger

I've read over the years that the Superposed (and other brands) trigger is an inertia system and can be "converted" to a mechanical system for use when shooting sub-gauge tubes. However, the "conversion" involves replacing a spring in the trigger system with a weaker one so the gun will reset with less recoil and is not a real conversion to mechanical.

I have a 12 gauge that has a set of Supertubes. These sub-gauge tubes were fitted to a specific gun by Browning and the trigger was "converted." My gun (unloaded) will fire both barrels with two pulls of the trigger and absolutely no bump to simulate recoil. Just like a mechanical trigger.

How is this possible? Surely the inertia block needs some type of jolt, no matter how light, to set the second barrel.

There are inertia triggers that will dry fire fairly reliably, but, from what I understand, Browning has made Superposed guns with true mechanical triggers. Trying to figure out what you actually have in your hands is difficult. Beretta, for one, converts inertia triggers to a very light touch, triggers that behave much like mechanical triggers. I own such a Model 682 that was converted at the factory to fire small gauge shells. I don't know what kind of trigger they put in their four barrel skeet sets.

Maybe someone will invent a gun with a different trigger for each barrel.
Mike

You need to get your tongue out of your cheek.😂

Well, 500 looks and still no answer. I'm disappointed in you folks. I thought surely there was someone out there who knows what the deal is with the trigger system. I guess it'll remain a mystery to me. But it works, so nothing lost.

I think you have a genuine Browning mechanical trigger conversion. I'm not sure they do them any more, but I have friends who have guns with the aftermarket conversion. I have no idea how they do it, but Browning may be able to tell you.

I had an earlier Browning Citori but not so early since it had factory choke tubes that had a mechanical trigger. It was a 12g with the skeet set of Briley tubes, 20, 28 and 410. I purchased it used so I don't know how it got that way. It has the big ugly squarish forend. Yuck, but I shot it well for many years.

I'm still a bit confused, eightbore. The gun in question is a Grade 1 12 gauge Lightning with a serial # indicating 1967. That would have been in the years of maximum production of the Superposed and not a custom order.

My gun certainly seems to have a mechanical trigger. Were the mechanical triggers set up in Belgium or were they converted by Browning in the US for use with the Supertubes?

I've read that the two trigger systems are totally different and that the conversion from inertia to "mechanical" does not duplicate a true mechanical setup. I guess I'll have to grit my teeth and pull the stock off the gun and another with an inertia trigger to compare the two systems.

If you had no idea why open your mouth ?

I am interested in the Browning Superposed, but am not a gunsmith. I've got you on my Jxxxass list. I think Dave may be considering you for another list.