No, the bullets for the .22 Jet that Hornady makes are VERY thin jacketed and would just blow up when they exited the bore. The centrifugal force is way too much on that little bullet. You'll need standard jacketed bullets made for the .223W velocities. I've not heard about Hornady coming out with bullets for the 5.45 but that does not mean much, if so that is great news and hopefully they will make brass too!
If this is a "right now" need, shoot me an e-mail info@reedsammmo.com and I'll see what I can do to make you some bullets sized correctly.