There is no reason that DA mode shouldn't be any less accurate than SA. If anything, some argue that with a revolver that has DA and SA capability, in DA mode it can potentially be even more mechanically accurate because the hammer releases from a lower point in the cocking arc than SA, such that it strikes the frame with less jarring force. Not sure if I believe that, but it sounds at least somewhat plausible. Just squeeze the trigger straight back and release. Assuming you have sufficient strength in your fingers and you don't have severe arthritis, this should be very doable for anyone.
Why shoot in DA? As I did initially, take it as a challenge. I got tired of hearing folks complain that accurate and fast shooting in DA with a revolver isn't possible. So I decided to slay that particular "dragon", and for me it was shockingly easy. Within 500 rounds (and I'm being generous with that number) I was shooting in DA better on average than SA.
It won't take long to appreciate a good DA revolver trigger, one that is smooth and consistent with a nice clean break. A typical S&W for instance, usually has a pretty decent DA right out of the box. Light years better, IMO, than any striker fired trigger - which feels like it has little round kitty dingle berries and cat litter gumming up the action
. Even most entry level 1911s, who most people think all have great triggers because they are short and light, typically suck because they are usually very gritty, have a lot of take up slop and have a jerk upon release.
It's highly psycological. Tell yourself that you can't shoot gun A because the trigger is too heavy, and you probably won't be able to do it. Same can be said for a rough action, to some extent anyway, there are limits if the trigger is really goofed up. Therefore, a heavy trigger is easier to overcome than a rough trigger. Take my Springfield 1911 for instance. The trigger break was so bad that the best accuracy I could ever manage was around 6" or 7" at 7 yards - I shot my S&W 642 better because the trigger on that gun is relatively smooth. Once I had the sear replaced and the action tuned and smoothed, my groups were cut by more than half.
In the end, different strokes different folks.
Poor shooting in DA often comes from folks getting impatient with the long trigger pull, so they end up jerking the trigger to take up all the motion at once. Just run it smooth and consistent - squeeze release squeeze release etc - look up some Jerry Miculek videos.
Tip: dry fire a revolver (check 23 times to make sure it is unloaded
) to a metronome, maintaining consistent press and release speed with your trigger finger. if you don't know what a metronome is, just google it.
A similar issue can come up when shooting SA - running at the trigger while trying to chase a perfect sight picture.
And I'll add this - mastering DA has made me a better shooter on ALL action types. The guy that can only shoot a gun with a 1/16" pull and 3 lbs of weight, man, that's a sad place to be.