Castle Arms is advertising Fiocchi Small Rifle Primers.
https://thecastlearms.com/product-details?id=3507264&utm_campaign=Untitled_Campaign_155&utm_content=touchpoint_1_monday_fundays&utm_medium=email&utm_source=zaius#product_detail
It took me almost 30 years to break my first Nightforce scope. Actually it was a Lightforce which was the Pre-curser to Nightforce and they still warrantied it. I still have a few of those old scopes on other rifles.
So... I have a Siamese Mauser 45-70 Sporterised by Navy Arms back in the 70's. They did not do a very pretty job at all. It has been sitting in the back of my safe for years. I always meant to take it to an old friend that is a 5th generation Barretta Gunsmith. Well, I put it off way to long...