Matt - Tried Zap Chronic and Diablo Blaze - same thing with both...
Would like to try some RPS through it though as I tend to find it's quite hardy...
Paul: You had rubber balls in your hopper? Ok, theory two - Angel breech is too big meaning an extra ball protrudes down and gets sliced by the bolt??
Or, maybe the two Halo's I was using were faulty as Manike suggested meaning the were exerting too much force??
Looks like I'll have to try again...Paul, any chance of trying your Halo on my IR3 (which I'll buy a Cobra detent for) before I go and waste another £100 on a Halo?