I’m looking to purchase some .275 Rigby headstamped brass or loaded ammunition.

heck out... hibid. com enter ..rigby.. 150rounds of brass on hessney auction on 3-9.. lot 2584

I think I have some once fired, boxer primed Kynoch somewhere, I need to look.

Hornady has it in stock. Friend just bought 100 unprimed brass, headstamped 275 Rigby.

I dont see it listed on Hornady's site.

Is there a Hornady retailer that you've seen it in stock?

Here's a link to Gordy and Sons website and their RIGBY branded 275 Rigby.... but "Oil Man's Boutique EXPENSIVE".... but if you are looking for a box for your rifle case, this fits the bill!!

https://gordyandsons.com/rigby...0gr-ammunition39496/

You might check with FOXTROT- Francis Lombardi on GI, who is the KYNAMCO US Distributor, he will probably have KYNOCH branded 5 or 10 packs.

Hornady did a run of 275 Rigby stamped ammo, apparently when Ruger built a 275 Rigby. I looked thru AMMO SEEK all 4 pages of hundreds of boxes of ammo... not a box of Hornady!!