Have you tried replacing the bar?
Well, I'm outta here. My neoprene waders have a hole on the bottom near the ankle so my feet get wet quick.
As I was rereading all the suggestions I noticed the 25,000 cord life time achievement statement. That is misleading because although I have processed more wood than most by far, but I did not go through 25,000 cords by myself. Sometimes just one person was helping and sometimes more. Sorry for anything misleading. There have been many years where as I cut, split, delivered and stacked close to 500 cords in a year with just me, but nearly killed me. It appears that conditions have to be nearly perfect for a person to process close to 300 cords. About 35 years ago when working in NE Oregon several logging companies were conducting normal old growth business. but had to thin and clear Lodge Pole Pine so they just decked the stuff and moved on. So there were hundreds of cords just sitting around drying out. It was pretty easy to cut 10 or 15 cords a day of 12'' to 14'' rounds that were dry. From my experience these conditions are rare. Thanks25,000 cords, eh? That's impressive.
Only thing I have encountered like this, was old sugar maple windfalls, that had been laying there up off the ground for quite a while. They were brutal to cut - it was like trying to cut through concrete. I don't know what makes petrified wood petrified (I should go Google that), but that's what that stuff made me think of. Chain only made fine sawdust, not chips, no matter how sharp i got it. I had to take a break & cut something else to make sure it wasn't the chain - and it wasn't.
I haven't cut much pine here especially anything that looks like that - but it might be that your chain isn't dulling right away, it's just doing the best it can with what it's hitting.
As I was rereading all the suggestions I noticed the 25,000 cord life time achievement statement. That is misleading because although I have processed more wood than most by far, but I did not go through 25,000 cords by myself. Sometimes just one person was helping and sometimes more. Sorry for anything misleading. There have been many years where as I cut, split, delivered and stacked close to 500 cords in a year with just me, but nearly killed me. It appears that conditions have to be nearly perfect for a person to process close to 300 cords. About 35 years ago when working in NE Oregon several logging companies were conducting normal old growth business. but had to thin and clear Lodge Pole Pine so they just decked the stuff and moved on. So there were hundreds of cords just sitting around drying out. It was pretty easy to cut 10 or 15 cords a day of 12'' to 14'' rounds that were dry. From my experience these conditions are rare. Thanks