Masic, you are going to have to look in the old mags from short range benchrest, silhouette, and shotgun/trap shooting. Stuff was tried in the 70's.
There were two ideas - super light, super fast triggers which were essentially ON switches - same way a conventional trigger works but with no chance of moving the rifle. Then there were release triggers where the ignition happened when the trigger was released/pressure removed. Again, the idea was to have zero affect on the rifle during the firing process.
Not sure how a release trigger would help trap/shotgun shooters but apparently used there. Maybe it worked?????? cause all this good stuff was quickly banned from competition.
I guess ultimately you could have a switch OFF the rifle ensuring zero contact during the firing sequence. How about wireless????
For me, that takes the fun and frustration out of shooting. Building a rifle that can shoot them into one small hole is not that big a deal anymore. Being able to shoot that, now that is the fun...
Just did some testing at 200yds, first two shots into the same hole. Nice. Third shot pulled low so you compensate (had to be conditions) and of course you shoot way high. Say some really choice words, refocus, don't compensate for anything, drive the 5th shot into the same hole as the first two.
We be having some fun now...
Jerry