A couple of things to help.
The USAMU Service Rifle Marksmanship Guide
https://estore.thecmp.org/Catalog/Item/780
And the CMP Coaching Resources page, particularly the Service Rifle and As-Issued Military Rifle Competition Shooting Resources section.
https://thecmp.org/training-tech/coaching-resources/
Especially the Shooting Tips from the USAMU Service Rifle Team.
https://thecmp.org/training-tech/shooting-tips-from-the-usamu-service-rifle-team/
Thanks!