The 6mm BR Norma feeds fine with the newer centerfeed magazines, it was the old stagger-feed magazines that were problematic with this round. That's with the factory-style magazines though, and your Stealth uses AICS-style magazines. I don't have any first-hand experience with that cartridge in that magazine type so I can't help you there, but hopefully someone will chime in who can.
As for why most people run it as a single-shot, that's simple. Most people shooting this cartridge are doing so in competition such as benchrest or F-Class. F-Class rules (10.1.6) specifically state that the rifle may only be loaded with one cartridge at a time. In benchrest most everyone uses a single-shot action because it's presumed to be stiffer due to the lack of a magazine cutout in the bottom of the receiver.
Bookmarks