What rifle is it? If its a savage 99 I believe you could rebarrel it to a .30-30win. I know 22 savage HP brass can be made from .30-30 win. I cant think of anything else that uses a .227 bore thats a rimmed cartridge. .30-30 99 barrel shouldnt be impossible to find.
If you cant rebarrel Sellior and Bellot makes ammo for it.
Maybe something from here? https://everygunpart.com/manufacturer/savage?amp;product_list_dir=desc&order=created_at
If its not a sentimental gun and you dont already own it, I would pass. Certain99s bring good money but if its whooped why bother?