I have the (well known) T\C 45-410 barrel for my Contender. Now, for those with a 410 shotgun, please remember that these T\C barrels are made to shoot the 45 long colt rounds. I would not recommend anyone shoot a 45 long colt round in a 410 shotgun.
Now, I have been reloading Magtech 410 brass hulls for my T\C barrel using 1\2 oz of #6 shot. I have also "experimented" with and finally settled on a load for 000-buckshot. The Magtech brass hulls will hold 4 000-buck balls and, are quite accurate out to 50 yards. I get a MV of about 850 fps.
But, the point of my post is, my 10" T\C barrel has a choke in the end of it. The T\C barrel is rifled for the 45LC, and the purpose of the choke is to stop the shot cup from spinning before it leaves the barrel. (If you are shooting 45LC, you are suppose to remove the choke.) The "problem" with the rifling, and the spin it puts on the shot cup is as the shot pattern moves away from the barrel, and if it's spinning because of the rifling, the shot pattern will begin to open up like a doughnut. So, your shot pattern....if your aim is "dead on" will actually be all around your intended target....and you will "miss" what you are aiming at.
Now, I "suppose" (and i'm not sure I would try this, as the 45-70 is a tapered case....very slight taper....but tapered none the less) you could load a "shot-shell" type load in a 45-70 brass, chamber it, and shoot it. But I think your still going to have the "doughnut effect" problems that i spoke of. Plus, your going to have pressure problems with squeezing the shot cup down the 45-70 tapered shell....and even this may lose pressure around the cup.
So, if you want to shoot a 410.....buy a shotgun....or the T\C Contender 45-410 barrel.
Dave
