Speer does not make the 275 Hot Core anymore, so if you have some, they are all you will have.

The 250 gr Grand Slam is fully as good, if not better in performance, because it is built differently.

Actually, I like the 225 GS even better.

There are still some 275 338 speers around on the secondary market, e.g., Ebay. I assumed that the post was based on "on hand" 275s or planned on the secondary market for acquistion of same.