I don't know, but honestly, I wouldn't worry too much about carrying what they do. I know, it's an often-recommended practice (and I've recommended it myself in the past) but anymore it's best to just pick from the top tier of SD ammo and call it a day. I recommend, in this order, Federal HST, Speer Gold Dot, Winchester Ranger T-Series. If you post the caliber you carry I'll give you more specific recommendations. Whatever you decide, at a minimum buy a box of 50 and run it through your gun with all of your carry mags to ensure it functions flawlessly, then buy another box and load up. (sgammo.com and other online retailers can often give you very good prices on carry ammo in boxes of 50 - I usually pay less for a box of 50 from them than I do for half that at a local gun store.