The stihl chain can be used on saws as large as an MS660 or Husky 395. I don't know if the Oregon chain is rated for the same HP. Would have to check their specs out.
The 63PMX "picco" chain is able to handle the hp. It is tough chain, and from my first hand experience, it is hardened, as in it does not wear fast. Not like the 91vxl, which I have on an old Homelite XL and. 28" bar. There really is no comparison. The picco chain is far superior.
Howdy,
When it comes to breaking chains, it comes down to the resistance the wood offers to the powerhead depending on the cutting application. Milling perpendicular to the grain offers the least resistance. Milling more parallel to the grain, and cross-cutting would be next. The cut that offers the most resistance is cross-cutting 45 degrees to the grain. The long bar recommendations for 63 PMX comes from Logosol in a milling application, and not from Stihl for other applications.
Regards
Gregg
Howdy,
Bailey's sold plenty of the Carlton LoPro ripping, and Oregon 91 (had to be ground for ripping) chain. Breaking was not an issue between any of the brands but, the 63PMX out of the box left the best surface.
Regards
Gregg