don’t worry about your acuracy I recall reading about an incident, cop on one side of car bad guy on other 7 feet away both emptied their guns over 20 rounds neither person hit...of course more ammo will help, first to run out of ammo gives the other guy time to relax a little, and squeeze the trigger...hopefully its it bad guy who runs out first, but we know silly magazine capacity laws are not going to stop him from carrying what he wants.
Which is why the backup mags are on backorder, and the changing of mags *quickly* needs to be worked on.