Hi Richard, As I bought it from a dealer 2nd hand (or more??) I'm not entirely sure how to date my MPR although think it must be one of the earlier ones - the DOM stamped on the reservoir is 06/2007 with a serial number of 073104. Also there's no metal support at the front of the stock below the res...

Looks like a good grip with a vice and perhaps something warmer???.....

https://www.youtube.com/watch?v=6-lw7lrVAnw

I too acquired an S400 MPR FT a few months ago and continued to use the JSB pellets as I was using in my old S400 Classic. However, I too soon had a similar experience - reliable grouping was impossible. :x Two of my fellow club shooters, who I know to be very good shots (one also an MPR owner), als...