Thread: 260 Remington

Originally Posted by grandpamac

Greetings,
I think I would start a bit lower than that. 42 grains of AR2209 is Hodgdon book max for the 140 grain and there have been some variations in speed with AR2209 I would start at 40 grains and chronograph to confirm your powder speed. I am a cautious old Fudd though.
GPM.

In the ADI (same as Hodgdon I believe) data the 140gr is a Nosler Partition - a bullet with a fairly long bearing surface cf a more modern VLD style.

ADI list up to
44.5 gr with the 142gr SMK
42.9 gr with the 143gr ELDX
42.8 gr with the 147gr ELDM
42.0 gr with the 150gr SMK
and

43.0gr with a 160gr RN.



Data is highly variable with 14X gr class bullets.