I have a XS 28 that I really like and am looking to add tubes for 410.

My research suggests that most 12 or 20 ga Brownings will need trigger mods to reliably shoot the second barrel in .410. Does this apply to the 28 ga model as well?

That is a great question I would like to know the answer to as well. Let me know if you find something out as I am contemplating doing the same.

Just count on it. The only way to get the tubes you want are to use fitted tubes. Briley will insist on charging you for the trigger work.

Bought a Browning Sporting Clays Special , came with 20& 28ga Briley companion tubes, 28's never fired. Used the 28`s and ordered 410 tubes. All 3 sets reset the triggers,no trigger work done.
When I bought it there was no trigger work mentioned in the description.
I believe they are mechanical triggers.
Figured if the 410's didn't work could always send them out.

I have a 20 ga. Browning XS Skeet that I bought from a fellow TS member. The gun has fitted Briley 28 and .410 sub gauge tubes. No issues with trigger working properly. No mention was made of any trigger work when I bought the gun so I can’t testify what may or not have been done.

I also have a Browning 12 ga Citori that I had tubed by Kolar. The gun failed to fire on several occasions when shooting the gun with the .410 tubes in it. A talented friend of mine said he could correct the problem. He returned the gun to me and it now functions as if it has mechanical triggers - although I know they are not. My guess is he installed lighter springs (or modified mine) but I don’t know for sure.

I’m not a gunsmith nor have I stayed at a Holiday Inn recently, but I’m pretty certain no Browning made gun (Miroku) has mechanical triggers. As mentioned, Briley does something to inertia trigger guns when they fit .410 tubes in them - and they charge a fee to do that. Check out their web site. If you have .410 tubes installed in your Browning expect to have to have the trigger worked on and to be charged accordingly.

He put in the trigger piston spring from a .410 or the XS Pro Comp.........which is what Kolar should have done. And, it does make the trigger behave as if it were a mechanical trigger.

My old Citori 4 barrel set works just fine with the .410 barrels. I don’t know if they did anything different for the set, but it works.

I'm not sure there's anybody out there who will tube a 28GA to .410

Have you called either Briley or Kolar and asked?

Briley will do it with their standard weight tube, but not the Ultralite.

OP here. Thanks for the helpful information. I'm not very interested in having the trigger modded, so looking in another direction. I also have a Cynergy Sporting in 12ga that has, supposedly, mechanical trigger.

My plan is to load up some hulls with primer only and test fire. I figure if it fires the second "blank' reliably, it will surely do a .410. Then I can work on a set of tubes for it.

No need to try primer only shell. My Citori (with trigger mod) functions just like a mechanical trigger. Pull the trigger twice on empty chambers and they both function. Try any gun without shells to see if the trigger will function as you want it too.