The article presents research on the analysis of the possibility of modifying the hot die forging process by replacing cold trimming with hot trimming. The study examines the effect of this modification on the precision forgings and the improvement of process efficiency and reliability. The research focuses particularly on the impact of the trimming method on overall process reliability, understood as the stability, repeatability, and robustness of the forging operation in industrial conditions. The components are made of austenitic stainless steel and manufactured using a hammer and trimmed using an eccentric press with a pressing force of 105 tons. The research results enabled the selection of the optimal solution for flash trimming—whether cold or hot—taking into account tool durability, the elimination of production bottlenecks and the achievement of high dimensional and shape accuracy of the forgings themselves. The conducted studies confirmed the usefulness and reliability of numerical modelling results for the analysis of one of the forging and trimming.