I didn't mean to start a hassle or get political. I know there are states with limitations on ML's, such as "All Lead" bullets, "No Sabots" and even some that specify Black Powder or Black Powder substitutes. Without digging out the Reg's I really don't know what is legal in Iowa. I do know that Toby Bridges was instrumental in putting the inventor and patent holder of the Smokeless capabilities together with Savage. They pitched it to several gun makers, and Savage was the only taker. I also know Toby doesn't pull any punches when it comes to recommending Hi Performance ML stuff. If he tells you it is good, you can take it to the bank. If he has reservations, he'll tell you that. His web site is probably the best and most honest sight out there on the subject. If you have questions, contact him through the site. He'll share everything he can.
Personally, I feel the performance difference between Smokeless and Substitutes isn't all that great, but the other things about it, make it attractive. Such as easy cleaning..
Because Savage has the patent pretty well tied up, I think it will be a while before Knight or any others will be offering it. I wish Savage would license others as I think it would speed the acceptance of the principle.