Yes I saw that. But the only reason I was thinking of getting the .52 is to use .52 caliber bullets. If I want to use .451" or .458" bullets I can use my .50 cal to do that. MMP makes a sabot that will allow you to shoot .458" out of a .50. I have some of them. Seems like Knight has a monopoly on full bore .52 bullets. But at $33.99 for a 10 pack they can keep them. For the price of a few packs I can have a custom bullet mold made.