Know issue with any 17 HMR ammo in a semi auto. Two proven problems cause the blowups. Pressure runs right on the ragged edge of being contained by a non locking bolt. Don't help that pressure levels are know to vary wildly with 17HMR ammo round to round box to box. Next problem is don't take much of a dirty chamber to prevent complete chambering. Round will still fire but the bolt already has a head start at not containing the pressure by not being closed all the way.
The Savage ammo has supposedly tamed the pressure curve. However I would still not trust it in any semiauto other than the A17. Any safety factor of the ammo is more related to the A17 locking design IMO.
