Is it just me or is the grip after market ? As long as the timing & lock up are good, you did well and I'm sure we all look fwd to a range report. The trick w fixed sights is finding a load that shoots point of aim.
I got lucky, the gent I bought my chiefs special off of gave me a box of Winchester Silvertips 110 gr. HP that shoot exactly POA. Even though all steel, recoil was stiff w 158 gr reloads. Yet, older 38s were often regulated for 158 gr fodder.
Good luck & Enjoy the Range Time.