Midway has Hornady, Lee, Lyman,RCBS and Redding dies for 10mm. They might have some Winchester or Starline brass. Would have to call. Also check Denver Discount Mart. Starline should have their 10mm around Feb. 19th. You can order directly from them. If not, I may be able to get some but it would be Monday evening before I can check. If he has got any I can pick it up and bring it to you if you are in McMinnville, then you can point toward a good Nursery.