I went and did it. I ordered some Nitro's straight 7's for my daughters 20g Nova. The H276C's. 1 7/16oz of 7's should put me in the ballpark of 502 pellets according to Nitro's. I wanted to get a little more performance out of her 20. Last year I swapped her Indian Creek .555 for a Indian Creek .570 and now I will have to wait 2-3 weeks to see if this will be a noticable improvement. I patterned her gun last year @ 40 with the .555 and heavy 13 1.25 oz straight 7's best was 140 something so we'll see how this load and choke combo plays out. I'm hoping to pick up a few extra yards for her. We'll see?!?!