Thanks for the replies, I did indicate I used semi chisels. The tree was not in dirt, was clean, on a 300 acre lot, no dirt or metal in the tree, no way.
I learned last week that 25 degrees is for hard wood, 30 for medium and 35 for soft. The other thing is that I always have oregon chains.
Sounds like Stihl chains are longer lasting? Sheite...The bark doesn't appear like shagbark, but I outta get a pic and put it here. WOod is real light almost yellow inside.
He had a MASSIVE one go down years ago, left it and I took rounds home but killed myself loading them. 36" across and all I could do to roll em on the trailer. Split pretty good except for the centers, and burned good too. Smelled great when splitting.