I will try one off a 290 next week. I will be out of town this weekend. That is the only saw I have access to with a .325/0.063 bar. Everything else I have is 3/8/0.050. I thought about that but everything seems to fit right. The only thing is it cut fine the last time I used it. I checked all the cutters and they are not rocked/dull/bent/etc. The new chains are Stihl brand and definitely .325.