243AI load info wanted

chooter

A#1 BMF
Full Member
Minuteman
Jan 4, 2010
721
48
Dayton, Ohio
I will be using 115 HBN dtacs, fed 210m primers, lapua brass, and either H4350, H4831sc, or H1000, 29.5" 7.5 twist barrel. Need a good starting place for loads and velocities. Thanks in advance