Don't give up man this could be a fun learning experience. I must tell you when I posted the reply it was less than 12 hours after I broke a bolt on my differential cover after replacing the axle seals on my truck. I tried the reverse bit for the stud removal but the one I had was to dull so I bumped up to a titanium bit drilled a hole and took it right out with a screw type easyout.

I am still mad the manual didn't have a torque spec for those bolts so I went with 50lbs. In the future I will use 30lbs for that type of cover.

Get it back together and we will make that rifle sing a different tune.