Those nitro shells have a pretty neet idea about them. They put 4's, 5's & 7's in the shell. And hevi-shot for the 7's. Kind of how Federal has those heavy weight mag-shok in 7's. They get away with using 7's because they use a hevi-shot type load.

It sounds like they are using the 7's as a buffer, so its a buffer and a killer at the same time.

One guy counted 22 #4 pellets, 81 #5 pellets and 382 #7 pellets for a total of 495 pellets in the shell.

But for me 10-16 in the head and neck at 50yds is plenty for me. Thats with federal fliteconrol 3.5", 5's. I can't really afford those nitro's. But I would love to give them a try.

Take a look at this web-site they did some testing with those nitro's

http://www.jesseshunting.com/article...gory14/11.html