IIRC, by using a FRT (Forced Reset Trigger) the bolt forces the trigger off reset given that the bolt closes. In case you maintain reliable pressure rearward about the trigger you will pull it again and fire A different round while not having to have launched force on the trigger. https://forcedresettrigger89012.amoblog.com/how-much-you-need-to-expect-you-ll-pay-for-a-good-forced-reset-triggers-55917261