308win 190gr SMK

[grantphillips101]

I have a R700 20" 10 twist rifle....i developed a 190gr SMK load using 41.9gr Varget, Fed Gold Primers, and Hornady brass....I am averaging 2390fps. It groups sub-MOA.

Here's my question: is 2390fps "fast enough" for a 190gr SMK? My rifle seems to "like" the 190gr more than the 175gr, but I am wondering if 2390fps is enough to keep it stable past 600 yards. People with longer barrels get 2500fps out of them, or so I have heard in other forums.

 

[Steel head]

Should be supersonic to about 1000 yard if that helps.
Shoot it and see.