Gary Coffman wrote:

Solid is better for the terminations used for circuit breakers
and outlets. Stranded really should only be used with terminals
designed for use with stranded wire (full crimp preferred).

Gary

Gary, how many service entrance pannels have you wired? All the
breakers I've wired for ampacities greater than 30 A have had
terminals suitable for stranded wire. ie. a hole with a screw
to pinch the wire against the opposite side.
...lew...