$250-$350, depending on condition.
7.65 is .32 ACP
No, you should not use .32 Auto (7.65mm Browning) pistol shells in a Beretta 7.65 Mod 70. The Beretta 7.65 Mod 70 is designed to fire .32 ACP ammunition, which is the same as .32 Auto, but always confirm compatibility with your specific firearm. Always ensure you are using the correct ammunition specified for your gun to ensure safety and proper functioning.
32 acp.
50-250
I would pay $1000 plus for a Model 70 in mint condition.
100-300 USD or so
The Puma is an alloy framed version of the Model 70, no longer marketed. Value is ABOUT $200 in very good condition. If selling to a dealer, about $100-$120.
7.65mm is .32 caliber. I own one of these guns and love it.
Made 70-82. 50-200 USD or so
I don't know of any published sn data for commercial CZ products.
You will have to call Beretta to find out.
You will have to shoot as many different bullet weights and brands as you can afford. Most weapons will show a preference for one or two.