Just read in Outdoor Life--June/July issue page 43--they did a brief test loading 2 push feed, a Remington in 375H&H and Winchester in 30-06 along with 2 CRF's.. a Ruger Hawkeye in .416 Ruger along wiht a Mauser-action Pasadena Arms in 6mm..they ran full magazines at normal hunting speed..first upright, then at a 90degree agle and finally upside down...the 6mm CRF twice popped a cartridge our of the magazine without engaging the extractor..both times the cartridge slid into the chamber ahead of the bolt but the extractor would not pass over the rim so the bolt could not be closed..per the article, does this settle the debate..probably not, but makes one feel better about push feed actions..

Ripp