I have some questions about using Briley subgauge tubes in a 12 ga. Parker

[Tennessee Dave]

I currently have (3) 12-gauge Parkers (1 Trojan,1 GH and 1 GHE) and would like to possibly use one of them as a .410 or 28 ga. I have come to the conclusion that I will likely never spend the amount of money needed to buy a 28 or 410 Parker, so I have been thinking about using my 12 ga. GH as a small bore. Do the Briley tubes all have to be fitted to the host gun or how does that work? Are there other options besides Briley? What about the drop in Four Tenner's? Any of you have any experiences with this I would love to hear about it.

[B. Dudley]

I have had Briley put tubes in one gun of mine. A 12g (not a parker) that they put 20g tubes in.
Their website says that they need the whole gun. But when I spoke with them beforehand on the phone, they said for a SxS, they just needed the barrels. I dont know what the difference is in that regard.

They offer two weights of tubes. The lighter ones save you like 4 oz on the set and cost like $100 more.

The tubes do add extra weight of course, but it is not really that noticable when push comes to shove.

I personally do not have any experience with the shorter inserts. I would think it to effect patterns vs a full length tube. But others who have used them think they work fine.

[B. Dudley]

Also, i cannot remember if there is any issues with the tubes if your chambers are shorter than 2-3/4”. You will want to ask them about that. Many would not want their chambers altered to be able to put tubes in.

[Woodcock survey]

I have a set of Briley 28 Ga. tubes bought from a member here. In 2 VH Parkers 1 will accept them fine the other they bottom out a 16 th short. That gun has a shorter chamber. Have used them in a Remington hammer gun with no problem and a Barreta 686. Of course the Baretta has 3 inch chambers. After a lot of in and out i found the plastic button that gives a snug fit wears to the point that the extractors lift the tube also. Put a drop of super glue on the button and good to go. They are the standard weight tubes and i do notice the weight.

[Andy]

I considered doing it with a small 16g VH I have. The gun shoots unregulated, the left barrel center of pattern about 6" to 8" left of center at 25 yards. I called Briley and they said their tubes would not fix this, so it's at Jim Eysters now. But he did tell me that you can pretty much leave them in only occasionally taking them out to clean and make sure nothing gets stuck and corroded. I have a friend with a set in a Model 21 and they always seem to pop out with the ejector or he's always swearing at them, while I hear many have better luck. I may yet take one of my 16's and put 28g tubes in it, but someone told me that is disqualifier for many SxS events. ???

[Larry the Gun Guy]

Dave, just give Briley a call and find out from them exactly what to do. It will take less than 5 minutes and you'll know everything including the cost. Call them at 800-331-5718
BTW Briley can fix the point of impact on shotgun barrels.
Good luck and let us know how it goes.

[Andy]

Originally Posted by Larry Stauch

Dave, just give Briley a call and find out from them exactly what to do. It will take less than 5 minutes and you'll know everything including the cost. Call them at 800-331-5718
BTW Briley can fix the point of impact on shotgun barrels.
Good luck and let us know how it goes.

They can Larry by doing a concentric screw in choke is what he told me. I figured for less money I'd have Jim Eyster try to fix it. I will only go to screw in chokes if I have no other option, I hate the freaking things.

[Bill Murphy]

Dave, both Kolar and Briley want to drill out your forcing cones to install sub gauge tubes. I have always felt that it is a money thing. All you can do is ask if it is mandatory. It didn't used to be mandatory at Briley. Make sure you ask for 3" chambers in your .410 tubes or you will get 2 1/2".

[Bob Jurewicz]

I have a 12 GA Parker DH with 2 1/2" chambers that I fit with a set of Briley Universal 20 GA tubes meant for 2 3/4" chamber. A little careful grinding at the forward end of the Briley chamber area and final polishing. They work great. I don't know why you couldn't do the same with 28 or 410 GA tubes.
Bob Jurewicz

[6pt-Sika]

If I’m not mistaken Briley will sell you the shorty tubes that require no messing with chambers or forcing cones and I believe a three gauge set of those cost around $900 new . https://www.briley.com/c-467-side-ki...tube-sets.aspx