The press promo's I've read and brief reports in "Handloader" magazine, indicate that Speer in an effort to improve quality and produce an "inexpensive" alternative to a "Bonded" bullet, have adapted the plating process they've used for the "Gold Dot" bullets to production of the "Deep Curl" rifle bullets.
The renaming of the Gold Dot's is a marketing move.
The only problem I see is that they are replacing many of the previous line of "Hot Cor" bullets. Some of my favorite bullets are being replaced. And, at present, neither of the bullets are available, as production hasn't caught up.
Early reports are that the bullets are excellent. Accuracy and expansion characteristics match the advertising.....They are already using the bullets in their line of factory ammo at Federal.
Time will tell.....