Tungsten Super Shot will eliminate the need for a big bore

[Big D]

Any guesses on the effect of such hard shot on old barrels, if any? Apparently it has some sort of razzmatazz hot rod wad/shot cup

[J. A. EARLY]

Originally Posted by John Dallas

Any guesses on the effect of such hard shot on old barrels, if any? Apparently it has some sort of razzmatazz hot rod wad/shot cup

In my 20 gauge 1 ounce loads it uses a 7/8 ounce wad with the top of a 28 gauge wad inside of it, and a wad under the shot inside the wad. The shot all fits within the cup. On the 1 1/4 ounce 12s it is inside a 12 gauge wad with a mylar wrap. I have looked at the bores and can see no marks or scoring. The small shot takes up very little space compared to lead.