I sent Hornady C/S an email about this. They said the second cannelure on the "old" version wasn't for crimping, but rather for core retention. (Nothing I've read cautions about that. I replied & asked does that also apply to #45230's two cannelures too.) The "new" version doesn't need it. Got no explaination on why their websites documentation isn't correct. I also asked why there's no load data for this bullet in the 45Colt/Ruger or 454 Casull section. They said because that bullet didn't exist when #8 came out, put I replied back advising that didn't make any sense because it is shown in the 45 Colt/SAA section, but not the others. Also asked for load data for those two. No reply back from them yet.