[stagpanther]

In other words the rifle cycles but the extractor "holds on" to the case? Like Mark says--sometimes the extractor edges can be a bit sharp and can use some stoning down. I built my 358 win AR with a KAK barrel and used one of the their heavy duty bolts which features double ejectors--never once had an issue with it. Some bolts these days sometimes come with "overzealous" extractors; stiffer springs and rubber donut bushings.