I am going to make a wild guess here that you are shooting in the cold with gloves on as well. This will change the way the trigger pull feels. If you were shooting double action I would say hard pulling the trigger. If single action then most common thing is pulling harder to try and compensate for heavy recoil.
A firm grip is needed. Though trying to muscle over recoil is not going to happen. Relax just a tad bit. Use the bench to rest your arms on, and lean into the shots. It helps a whole lot.
No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.