What is the most accurate 10mm load you have found? Thanks.

I use Bluedot and a 175 grain Cast lead SWC in my Delta

I would look at Power Pistol for the powder and see if that works out for you.

favorite is 13 gr AA7 and a 135 - deadly crat load

10MM Auto Load
Rem case
Fed Primer
Speer 180ge Gold Dot HP
13.0gr of AA #7
1.260" OAL.
Pushes the 180 JHP @ 1300+ fps from a 5" slide gun.

butchloc: funny you should mention a rat load. I am trying to develop a varmint load using the Nosler 135gr.JHP. I'd like to find something that will be around 1200-1400fps. I want to be kind to the gun and produce groups under an inch. I am also using a commercial cast 170gr.SWC as a practice utility load but may utilize it for varminting as well at speeds around 950-1100fps.