If the Nosler sabot you have does not have the stair stepcup that the MMP's have, you have actually got a Harvester short black... or if the Nosler has a smooth cup and is shorter than the HPH-24.. you have a Harvester...

Prolly makes no difference to you, but I could not get the Pink tape to work right had to go to White tape to get the right wrap on the breech plug....