Have you tried the Hornady 265 JSP's.?
They shoot well out of my 444. I can sometimes get 3 under an inch and 5 will almost always go about 1.5". Plenty good for what I need.
Here's what mine likes.
Hornady Case
Remington 9 1/2 Primers
Hornady 265 JSP
42.5 gr. IMR 4198
COL 2.565
Lee Factory Crimped
These Avg 2075 from my rifle.
