first runnings refractometer: 1.072 added 0.5oz Galaxy at 30 min instead of flameout
Based on boiling 6.50 gallonsliters at 1.050 for 60 minutes, this will decrease your wort by 1.25 gallonsliters, bringing your after boil OG to 1.060. You wanted an OG of 1.061. It looks like it will be under.