Historically the Hornady 35 cal RN interlock is fairly hard and tough. It performs well at closer range and higher velocity, but can fail to expand if impact speed is low. Probably the best bullet is the Remington Core-lokt 35 cal 200gr round nose that used to be sold as a bulk component. I've been successful at finding them for sale at gunshows here and there, but they're getting harder to find.
I also cast the Lyman 358315 204gr round nose, but this isn't available commercially from what I've seen. I have also purchased the cast 200gr FN RCBS version from Montana Bullet Works, and their cast products are very good.
