You'll have to load them to 2.55" OAL. Crimp with Lee FCD.
If you are going to use heavies, I highly recommend the Beartooth Bullets Piledriver. Advertised as a 525 grain bullet, the ones I have weigh 540 grains (lube and gas check), are accurate, penetration is excellent, and they are designed for use in a Marlin 1895.
The bullet I prefer is the Beartooth Piledriver Jr at an advertised 425 grains. Same nose profile, just a lighter bullet but still capable of taking anything North American.
But you probably have a bunch of those Partitions.
