RE: 22 Hornet
Hornets can be tricky little rifles to load for. The older ones usually have a bore diameter of .223............and not .224 as one might expect. Shooting a .224 bullet in them won't be the end of the world but it can increase pressures slightly. Second thing to worry about is 22 Hornets usually do best with a semi-pointed bullet rather than a spire point. In the heavier bullets especially, they just don't crank out the velocity to really stabalize heavier spitzers. This was really noticable in the hornet I used to own. Hornady and Sierra both used to make .223 semi pointed bullets especially for hornets and that was what mine shot best.