Best choice for poor man's The Judge 45 LC/.410 2-1/2 inch shells 0000 Buckshot

 I am lucky, I found a way to have a gun with a flare gun as back up to regular firearm. Them Barrel Sub Caliber inserts that allow 45 colt/.410 shells is best one , its a poor man's judge single shot  I use 0000 buckshot with over 750 Foot/Pounds of energy and each 0000 is .375 almost a big full sized .38 special truthfully as 38 is .36 cal and that is what 000 buck is,this is huge difference exotic round, it has 4 balls 78 grains, each round of this 410 bore is comparable to a .44 magnum in energy 1200 fps. Each ball (4) of them hit all at once like a .38 special would hit and penetrate to, so what I am saying is these rounds are like getting shot with a 38 special 4 times all at once with 44 magnum energy from a runway subcaliber barrel insert in 26.5 mm flare gun or your judge or governor gun or rifle of 410. 45 colt is a good round as well but 410 wins with this choice, the link is below to ammo for sale that 410 bore 0000 buck shot.

We shot some milk jugs to find out what they would do. The balls passed through two milk jugs and smacked an old level II vest SO HARD that you can still see the imprint of the threads of the vest on the ball. The ball expanded to .432” or just slightly larger in diameter than a .44 magnum. For the blissfully ignorant a .44 is actually .429”. Can your 00 buck .410 3” shell expand like that??? I use 00 buck from Gungully they have 0000 buck ultra the other website but only 3 balls of 0000 not 4 like this one https://wolfhillammo.com/410-2-1-2-0000-buck.aspx

What happened to Sub Caliber Runway inserts?

 I got a plastic 22 lr barrel insert for 26.5 mm flare guns, not metal one by Runway, I got a 45 Long Colt/.410 bore Runway sub caliber barrel insert and noticed Bud K and Kennyhal discontinued firearms related items like Bud-K, does anyone know someone who has a USED Runway 38 Spl barrel insert for 26.5 mm flare guns? or if they are discontinued due to firearm related items being so far in demand for all things even ammo costs are unreal how hard it is to find anything due to Covid pandemic caused severe back orders and some manufacters cannot get all the orders delivered in one year backed up that far. Anyone know who has 38 special runway 26.5 mm flare gun insert please comment below. I highly recommend them, I tried finding one used one for 38 spl and nothing shows on internet due to backed up orders and so much demand.