My 1st saw was a McCulloch 3200 14". Loved that thing.
Then I was running a Crapsman / Remington 55cc 18" but Stihl full chisel chains killed it.
Now I have a MS-271 16" with regular & full chisel chains. I have 20-ish dead oaks due to caterpillar damage that I need to deal with and am contemplating a bigger bar. Stihl says 16-20" but I was wondering if a 24" would work ok with a 1/2 skip or full skip chisel. Definitely want to keep the rpm up in the happy range.
???
Then I was running a Crapsman / Remington 55cc 18" but Stihl full chisel chains killed it.
Now I have a MS-271 16" with regular & full chisel chains. I have 20-ish dead oaks due to caterpillar damage that I need to deal with and am contemplating a bigger bar. Stihl says 16-20" but I was wondering if a 24" would work ok with a 1/2 skip or full skip chisel. Definitely want to keep the rpm up in the happy range.
???

My saw has an 18" bar. What it came with from the dealer new. Honestly I have never had to cut from the other side of anything. 
