this is my first post put i have been lurking and learning from the site. I have no trouble with #3 masterlocks, kwikyset titans, and this gun lock i have but i an having the darnedest time with this cheap chinese knockoff of a masterlock that just says china and 40mm on the bottom and hardened on the bolt. I am also having trouble with a brinks r70 and a buffo 28st/70. Any tips i suspect the two round locks (dont really know how to describe them) are kinda out of my league at this point but still...
Thanks,
Ethan