Peoples thought on FMJ 6MM arows, or what their shooting.
 

Hi I own a Halon 6 , with a HHA single pin 55-19. I'm shooting FMJ 320 28 1/4 '' 70lb maxed out. The 320 are 10.6 grain per inch. I went to buy a half dozen more. They only had the 390 FMJ 6mm. There 9.7 grain per inch. I bought them thinking I will have to re-sight my bow. I was wrong out to 60 yards they fly the same. 3 arrows group about a inch to inch 1 / 2 group.