I just bought a CZ Bobwhite, it was very hard to open. I greased it up really well, it seems to be better. It had no grease on it, it was lightly oiled only. My Browning OU and my Beretta OU was almost as hard to open as my Bobwhite, but a little grease fixed them up. My Beretta has a little over 1000 rounds through it, its still tough to open. It is a sign of a new gun not to just pop open like you see when Olympic skeet shooters do after each time they reload. Hope your openings are easier to you. Any updates on what is happening with your gun?