I have trimmed and run some 7.62x54r brass through a full length die for 8x50r Austrian and I need some advise on the next step, what sort of load should I use to fireform the brass? the rifle is an m90 carbine in good condition, it has the rotating bolt head like the m95, I'm not sure if it's best to use a light load or not or a heavy bullet or a light one, any advise will be much appreciated. Thanks, Martin.

