Re: Belted vs non belted.
Loading a belted case is no different from a non-belted case IF their chambers are cut to proper dimensions, which they usually are, but because the headspace is measured from the bolt face to the far end of the belt rather than to the datum line of the shoulder it seems that sometimes the chambers are cut long. When belted brass is completely FL sized and then shot in a too generous chamber it expands and then when the FL sizing is repeated the brass work hardens and quite quickly cracks or completely separates. Measurement comparisons between sized cases and fired cases need to be done and if they are more than a few thousandths of an inch longer after firing, sizing needs to be done with a neck size only die, that is until the cases grow to the point that bolt lift gets draggy, and at that time the shoulder needs to be set back just a little. This can be accomplished with a FL die set to just size a little of the neck or a shoulder bump die.