It is not a SR-25, it is probably an Accuracy International chassis for Remington 700. There are clear difference between the rifles in use in the picture and a SR-25 (pasted on for reference).
-
Magazine release in front of the trigger guard
-
Upper receiver and rail is a single piece of billet as opposed to 2 piece design in sr-25.
-
They are using bold action rifles not semi.
-
Longer magazines so most likely .338 lupua or .300 win mag both rounds have much more energy then a 7.62 and a flatter trajectory.
>>21221153 LB