i put a d-loop on my bow and my release will not let it go i slung twoo arrows with it why wont it let go?

Please be more specific with the problem you are having. Sounds more like a problem with the release, not the loop.

What kind of release and how long is the loop?

If you are using one of the all metal D loops, your aluminum caliper release jaws might be hanging up on the square edges of the metal D loop. Seen it happen on someone else's bow set up. Go to a rope loop.

i use a scott little goose and yes it is metal loop and my friend has a string loop and it does fine

I'd bet that if you look at your release jaw you will see a little rough spot there where the metal D loop chewed into the jaw and created it's onw little "hook". Your release might chew up a rope loop now unless you smooth up the rough spot with some 600 grit wet or dry sand paper Let us know what you find, Russ.

Sounds to me that yu just solved your problem. Use a rope loop, those metal loops are junk IMHO. But, like WWAG said, make sure that there isn't a rough or sharp spot on your release.

i had one and took it off