AND--- a good method of making your brass last longer for the Bee is to set your sizer die up to where it only sizes the neck of the case. If you start having any stuck case issues, screw it down a little more, but try to avoid the full re size on these little cases which head space on the rim.
With my Model 43 I endured many case separations until another Bee shooter clued me in. Yeah I have a lot of old brass, but who doesn't for these old rifles. I also carry a special broken case extractor when shooting the old girl, as I still suffer an occasional separation. I've now got around a thousand cases, and some of them are pretty thin. Couldn't venture to guess how many times they've been loaded.
By the by, my new favorite bullet; .224, 40 gr., V-Max. Oh yeah- IMR 4227.
jim