Look at the .325 chains you have and compare them with what you may be able to buy?
There is a big difference in some .325 chains as some have more or less small "low profile" cutters and others have much larger cutters.
The only .325 saws I have are Stihls and the Chains are Stihl "RS" and "RM" styles with large cutters. These saws have .063" gauge bars and I don't know if your local Stihl dealer would stock these chains in .050"? I really like the chains.