I have a Stihl MS250 with 18 inch bar. I don't use it a lot but recently sectioned up an oak tree 24 inches in diameter and 50 feet long. I cut it into 8 foot sections no problem. Soon after saw got dull. I sharpened the chain but now it seems to only cut on certain spots on the bar. Mostly right next to the saw. I checked the depth of the groove and it's 7.5 - 8 mm everywhere. Specs I've read says that bar is good to 6 mm.
What about the width of the bar groove? Can that be a problem?
Also I started to buy an Oregon bar and chain that I thought the vendor said was compatible but now I'm not sure. A Stihl chain says its .325 pitch, .063 gauge and has 68 drive links. The Oregon is 3/8 pitch, .050 gauge and has 62 drive lengths. Is it compatible with my saw?
What about the width of the bar groove? Can that be a problem?
Also I started to buy an Oregon bar and chain that I thought the vendor said was compatible but now I'm not sure. A Stihl chain says its .325 pitch, .063 gauge and has 68 drive links. The Oregon is 3/8 pitch, .050 gauge and has 62 drive lengths. Is it compatible with my saw?