Quoted:
My thought is that it's happening because the bolt is not moving fast enough to eject really hard. Is this with bulk pack ammo? Are the ones that are jamming also the ones that don't seem to have a full powder charge? What % of rounds fired are jamming like that?
The bolt speed is the issue. I know this rifle should run just fine without modification, but I always re radius the bolt and use a bolt buffer to get my bolt speed up.
I have actually been having more issues with Blazer in my 10/22 and marlin 75C than any other ammo I have tried. They both eat everything else flawlessly. I think a lot of it has to do with the longer driving bands.
the OP should try some regular Federal bulk pack or Federal automatch and see how it goes.
One more thing to check. If you have disassembled your trigger group, check to make sure the hammer strut c clip is facing up. If this is wrong sometimes the strut can cut into the aluminum and slow the bolt significantly.