I know that the point of this post is a very interesting gun, indeed. Back in the 80's I got very good accuracy from a Trojan using the short Brenneke 12 ga. slugs (maybe 2 5/8"?). In fact, I had a 60 yd. downhill shot on a doe where the gun accidentally doubled on me. When I skinned her, it looked like someone drove the barrels into her! Two perfect sxs touching holes..... Until you build the piece of your dreams try finding some Brennekes. You may be nicely surprised. Good shooting!

If I were thinking about converting a SxS into a double rifle, I would probably start with a Japanese Browning 20 ga. I have heard of this being done, with some pretty fair results using the Browning guns. If you mess up, and ruin a gun - NBD.

There is some info on Briley's website that HINTS that they might offer rifled tube inserts. But they have yet to reply to my Mailing. We will see.

As I recall this conversion has been done with a Ruger Red Label.

I have two 45/70 inserts for 12 gauge. Sadly it did not work out as I had hoped. With our 12 gauge side by sides there is a slight bend in the bArrels for regulation. The inserts do not benefit from this. My bullets crossed horribly even at 25 yards. With double rifles if the bullet is to light or to fast the bullets will cross paths before impact. If they are to heavy or to slow they will shoot apart.

harry i bet those tubes could be regulated in a 10 ga gun with a little fiddlin around...charlie

I guess they could be and it was fun to play with as I tried them in every 12 gauge I owned. At one point I had some money and purchased a Kodiak Mark IV in 45/70. The 400 grain bullets were to heavy and shot apart so I loaded 300 grain Speer bullets until I achieved regulation of 2 1/2 inch four shot groups at 100 yards. This with 61 grains of IMR 3031 at over 2100 fps. I have a Kodiak in 58x58 that will shoot 4" groups at 100 yards with a 665 grain REAL bullet and 110 grains of Pyrodex RS. Fun, fun.....

now thats a gun harry...ever try the big gun on deer...if it was mine i would have to try it....wish my old 8 shooting the round ball load was a little more accurate...past 40 steps i womt take a shot.... charlie

I hAve deer hunted with both doubles. I thought I was shooting a doe with the 45/70, but it was over 100 yards in morning light and I did not see the buttons. Been skunked every time with the 58x58. One time in the rain I had a good shot, but water had gotten past the nipples and I had misfires on both barrels.

Those darned button bucks! lol.