My 308 MSR 10 is failing to extract. Bought it about 2 months ago. around 300 rounds deep into ownership and I still cant get it to run reliably. I have tried multiple brands and loads of ammo and the same problem occurs. Some ammo more than others. The used round will not extract and the rifle will attempt to load a new one right into the back of the empty brass. I have tried everything from a full closed gas block to full open and every setting in between. The brass that fails to extract looks like the extractor ripped the front half of the rim off of the casing. Should I send the rifle back to savage or do any of you have any tips to get myself sorted out at home?

Thanks