When I'm doing a private training course that is the number one issue I have with most people, keeping that trigger pulled to the rear until your rifle recovers then reset.
Next time you're out give this a try.
Spend a good couple hours shooting your Large Frame gassers to the point you feel it's just mussel memory and your accuracy is consistent (not a bad AR day). Then switch to your Bolt rifle that usually is the hardest for you to group well, I know this sounds weird but don't even look at the damn bolt gun and keep in your mind your just grabbing your Large Frame Gasser. Once your behind your bolt rifle just do everything the same as you do with your gasser and I guarantee your accuracy will improve.