There was a thread on Hornady Critical Defense ammo about a year ago. Several forum members had failure-to-go-bang issues with certain lots of Hornady C.D.
For what it's worth, I think the biggest attraction of Hornady C.D. is its (relatively) reasonable price compared to other brands of premium ammo. BUT, unlike the other brands of premium ammo - Hornady does NOT make its own primers*, thus they can't control primer quality. Because other members have had issues, I would not carry my R9 with C.D. ammo.
*Remember, there was a really severe primer shortage in 2009 - 2010. For a period of 6 months I could not buy a single primer from anyone! Finally bought 1000 Fiocchi small pistol primers. Imagine what its like for a volume manufacturer who needs to buy in quantities of 100,000 or 200,000 per week!
Steve