Some FNG and hopefully not so FNG questions.

[Jaggy13]

H4350 is going to be too slow for Grendel. Save that precious powder for your 260!

The G7 for the Hornady black is .255. I found it surfing around the World Wide Web and plugged it into my app and it was spot on

Thanks!
I will save the 4350 for sure.
also, I just plugged in the .255 g7 and that's interesting.

I came up with .32 that gave me U4.2 mils at 550, that hit the first two shots. Then I started hitting about .5 low.
When I plug in your value, it gives me U4.6 mils at 550. So I am feeling better about this now.
I'll try to hold judgement a little while longer and give this a chance to break in a tad more.