444 marlin with alliant 2400 powder

[stef76]

Hi gents, for reduced loads in this powder, are you normally requiring fillers, dacron etc? Or does the reduced load ignite safely in a the bare case?

[Tatume]

Try this without the filler. I don't use fillers for any cartridge.
https://castboolits.gunloads.com/showthread.php?171929-2400-The-Load