Is the case capacity similar to brass? I've reloaded them before with no problems but it's been a while and I can't remember what I did with the powder amounts. I know I use slighlty less powder (.5 grain) for my hot loads if I'm using Remington cases as opposed to Norma cases. Something tells me the nickel cases might have a slightly smaller case capacity due to the thick case walls. I could be wrong but it's better to go on the side of caution. You can always work the loads up.