I had a discussion with nongshim, an sme here on the boards, a couple years ago about shooting positions. He provided me this link, which has changed how I build my shooting positions, especially with gas guns:
https://www.ballisticstudies.com/Kno...at+Forend.html
I stopped using my offhand to support the rear of the stock, and now have it on the handguard or magwell (depending on position) helping to pull the rifle into my shoulder, and my consistency has gone way up. I also prefer to use larger front bags as opposed to bipods whenever possible.
My LMT mws was notorious for shooting fliers. With this new technique it started shooting nice groups on paper, and I had much more success ringing steel at longer distances.
Lately I've been shooting my scar 17 a lot, and it's giving me sub moa performance with minimal effort and good ammo. And I think that's the biggest thing: It's far less of a struggle to get the accuracy I expect and know the rifle is capable of, instead of wondering why there was a flyer.