Have an mrad in 6.5 and have been very happy with it. Want to get into 338 and trying to decide on getting a conversion kit or a separate rifle. I am wondering when changing calibers how accurate the return to zero is.
Based on advice from other MRAD owners there are a few things I could have done to mitigate this:
-Install barrel with rifle vertical so that the barrel's weight seats it against the shoulder while tightening the bolts
-Mitigate minor play between barrel index pin and index notch by rotating barrel to right or left as it is seated (just do it the same way)
-Tighten bolts alternately 1/4 to 1/2 turn until tight, but torque front bolt first
A caliber conversion, especially if purchased on the PX, is going to be significantly cheaper than even the optics on another rifle. For me that was the appeal of this system in the first place.