Mark _australia said..
Agree with last two. But always test if you can get it to sit with front flush or rear flush but never both. Then you know it’s just too long or deep but the tapers are correct
if it will only ever sit with one end flush but never the other no matter what you do it’s gonna be way harder.
so are you sure u can’t make it sit the other way?
Both will sit flush but not at the same time. So it’s possibly too long.