? The "best buy" is the Precision Delta 124gr JHP, when you buy 2000 or more. And there is a discount code floating around this forum if you want to buy 3000 which lowers it even more. Price includes shipping.
? Second favorite is the Zero 124gr JHP from Roze Dist.
Both those load at 1.100".
? Another good buy is the Rocky Mtn Reloading 124gr JHP, which generally loads around 1.065". It's a good solid plinker for low volume ordering that results in excellent seating depth. RMR costs include shipping.
All 3 of these bullets excel with most any pistol powder above 125PF (~1010fps). Favorites include N320, N330, BE-86, W231, HP-38, WSF, 7625, and others.
For SD I suggest you buy factory made rounds of 130gr to 147gr. Both Federal and Speer offer excellent cartridges that feed well in the CZ. Both Speer (Gold Dot), Berry Mfg (Hybrid) and Hornady (XTP) offer excellent SD bullets if you insist on loading your own.
? We typically don't publish exact loads on this forum, mainly becasue your results will vary and you should run your own tests. But if you'll tell us bullet and powder we'll be happy to give you a narrow testing range. Many of us prefer Federal #100 primers, which can also skew the results.
Hope this helps.