ive had the same issue but have put up w it for a while. i dont shoot a whole lot but when i do ill burn up a good deal of loads im testing or working on.
ive had on occasion, empties come loose from the bolt head before they have a chance to get flicked out of the action and get in the way of the bolt pushing a fresh round into the chamber. a gunsmith friend of mine filed on the extractor lip ,thinking it may have a burr on it that prevented it from sliding over the rim, and it did help as it didnt do it as often but the fact is that it does still do it. im interested in reading possible caused from the more veteran savage gurus in here.