I am looking for some additional 10-round magazines for a T3X CTR. The only place I have found them is Beretta direct (for $99.99 each!). Any other sources you know of? Thanks!

They used to be $200 each! Try Euro Optic

https://www.eurooptic.com/S540...TR-Magazine-260.aspx

Thanks. Is the magazine you linked good for 6.5 creedmoor?

I wondered the same when looking for my 6.5 CTR...yes, works fine in mine.

The best way that I can figure out is to buy something from Beretta. Then they will periodically tempt you with discounts. normally its around 20% (that was the latest for fathers day).