I once thought my bolt twisted and I tried like heck to get it to slide back into the rifle.....then I found out I was trying to twist something that wasn't meant to twist, luckily I was only using my own strength, not a wrench etc....then I finessed it and it went right in.

So ya maybe step back and take another look at it, maybe the safetys on and it wont open etc.....something odd/unique like that, you really shouldnt have to muscle something on a rifle, even in a jam/stuck round, can you fire the round?