I can't shoot the difference in those new measuring/ weighing systems , so I weigh mine in an old Ohaus beam scale then throw all all my charges on my Harrel.
Last night after 40 rounds the 41st round came put the very same on the scale as the first one .
The sling and irons cancel any added cost because if I can hold ten into 2 MOA at 1k , I'm happy .
Cat