I don't have an RSM in 375, but I have RSMs in 416 Rigby and 458 Lott. I haven't had a problem with ejection with either of these rifles. I think the RSMs are the best value out there with their integral quarter rib and usually nice wood. However, I think any production rifle needs to be tuned by a good smith. My RSMs are being sent to Roger Ferrell for a full tune-bedding, trigger adjustment and feeeding work. You can send your rifle back to Ruger (they are great to work with) but I would instead have an experinced smith give your rifle the go through.

I think the RSMs are worth it, and frankly haven't found a production DG rifle that works perfectly out of the box. Sad but true.

John