Recently, I finished firing 2500 rounds through my Beretta Nano. I briefly discuss wear and durability, but spend the bulk of the review on the question of reliability.
Granted, my testing involved one gun and there is the possibility my gun could be somewhat of an outlier. Also, I understand how guns from the same manufacturers can sometimes behave differently, so your results may vary.
With that being said, the results of my testing appear to disprove two commonly held ideas about the Beretta Nano.
First, my results indicate there is no correlation between increased bullet weight and increased reliability-at least between 115gr and 124gr.
Second, the testing proves there is no correlation between ammunition price and increased reliability.
To see all the records I kept for this test including performance info on each cartridge brand/model, see the description box in my video "Beretta Nano: A Full Review, Part 2" http://youtu.be/3jzrnzNdqPs}.