Definitely indoor only. My other cat is indoor aswell. Ragamuffins especially need to be indoors because of their gentle, docile demeanor.
This is copied from the ragamuffin breed wiki:
RagaMuffins are a muscular, heavy breed of cat needing approximately four to five years to fully mature. [1] The physical traits of the breed include a rectangular, broad-chested body with shoulders supporting a short neck. The head is a broad, modified wedge with a rounded forehead and a nose dip. RagaMuffins come in all coat colors and patterns with a medium-length coat that increases in length toward the stomach. Although the coat is thick and plush, it does not readily mat or clump and is easy to care for. RagaMuffins are bred to be sociable, affectionate, cuddly companions that are playful throughout their lives.
Source http://en.m.wikipedia.org/wiki/Ragam...cat)#section_1