Is this a productive but achievable rate?

The cycle time is currently set at 5 minutes and 30 seconds with pallet indexing. We operate with a 2-pallet system, 4 parts per pallet. Machinists have 7 hours of machine access, which includes 3 breaks totaling 50 minutes. Machinists are expected to allocate 10 minutes at the end of each shift for area cleaning and parts counting.

In total 6 hours with breaks and cleaning. It’s important to note that scrap does not count toward the productivity metric, and the primary cause of scrap is material-related issues. Tool changes exempt you from the rate to an extent, but any deviations from standard performance without tool changes will affect your yearly review. Rate is 275.

I have one shot one upcoming opportunity to change this, and I would appreciate your 2 cents.