followup
I loaded some rounds up
44, 45 and just a hair under max (45.7) (using Varget)
2.80 OAL
the first rounds were an inch group, 44g
2nd was about 3/4", 45g
3rd was cloverleafing at 45.7g
at 100 yards, next I need to get out to the outdoor range for 2 and 300 yard testing