Hey pug, you are absolutely right.
I was just correcting the maths error that I saw. But yes, bullets weigh a lot less than that. Some typical bullet weights are:
100 grain = 6.5 grams
115 grain = 7.5 grams
130 grain = 8.4 grams
150 grain = 9.7 grams
Thanks for that.
Cheers,
pgc