I think there is correlation between how a particular hardwood must be handled in making a bow and how it will perform under extreme conditions as a ramrod material.
Bows can be made from hickory boards with not a care in the world about “grain violation”. That is, growth rings can run out some on the face or back of the bow and the bow does not need to be backed to ensure it does not fail under tension. I’ve heard red elm and red oak are also worry-free about grain violation. Other woods like black locust, ash, Osage orange, hornbeams, cherry, black walnut, and others must either be skilled on the back to one growth ring, backed with something like sinew, rawhide, or snakeskin, or be at risk for failure on tension.
None of that may matter much if ramrods from finicky bow woods are split and follow the grain 100%.