Throw that magazine away right now, don't keep it around or it may cost you an animal. Buy two or three extra's. When the lips get bent the slightest, they are ruined, cause all kind of problems.
Also, take your rifle with the bolt open and look at the top of the receive for any kinds of gouges where the bolt could be coming back slamming the top of the receiver putting dings in the metal.
Folks throw their magazines around, they get ruined easy.
Also, be sure your magazine is completely seated in the gun, look for heavy drag marks on the sides of the magazine.
From what you describe, the round is coming out of the magazine prematurely, meaning the lip is bent. As you can see, if you own a rifle that uses magazines, you need a couple of spares.
The only problem you will have is if you try and "fix" that screwed up mag.
Here you go:
https://www.gunpartscorp.com/Products/196830B.htm