What you should say is that 'your P-64 will not eat the Hornady ammo'. My own Radom P-64 has never once hiccuped on Hornady ammo.....it hasn't hiccuped on any ammo. I know several others who have also had no issues with Hornady ammo in their P-64. My FEG PA-63 doesn't care much for Hornady though, but my Bulgarian Makarov cycles anything. I mostly shoot Brown Bear or Silver bear though.
And as was already mentioned, Makarov's do not have polygonal rifling.
You may be thinking of the CZ82 (Vz82) which is chambered for the 9x18 Makarov cartridge. But that pistol isn't a Makarov.
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