No there are no adjustments in the 742 trigger BUT a GOOD gunsmith can clean up and smooth out the trigger. It is basicly the same trigger as the Rem 1100 shotgun and there are a bunch of old 1100 trap and skeet guns that have had there triggers tuned. It is not a whole lot different than tuning a 1911 or SA trigger.
I had a 742 that I used as a target rifle in Taiwan and the AF armoror was able to clean up the trigger pull.
After the first shot the rest are just noise.