The new Federal bore sized bullet is not pure softer copper and expansion may not be adequate with mild loads. It a copper alloy like the Hornady Monoflex bullet. Probably copper and zinc similar to guilding metal.
Its a tough little bullet. My best guess is the Aerolite is best suited for this load because of the fairly soft lead and large hollow point cavity. REAL conicals may also work but as i said T/Cs sometimes wont shoot them well.
