Used the nitro 4x5x7 heavy for years with great success. Got tired of the buffer leaking and the return game.
Went to heavy 13 straight 5s for two years.
Now handloading tss. WOW!
2 1/2 ounces of 7.5 tss in my sp-10
2 ounces of 8tss in my 11-87 12 gauge.
Devastating killing power.