I have one of the first 75 Modern Hunters, it's a 243 win that I specced out as a target rifle. 24" medium barrel and full PRS stock, 1:8 twist barrel so I could shoot the heavy 6mm bullets. It's been a long journey to get here but I've got it shooting well now and took it to the ORA Precision Rifle competition at Connaught last weekend. My partner and I managed to get 2nd place overall, with many high scores and top score at 600m deliberate. This is a testament to the potential of these rifles, as I was competing with some seriously nice bolt guns with some top notch shooters driving them.
Here's a link to the scores if anyone is interested
http://www.canadiangunnutz.com/forum/showthread.php/1376419-ORA-Precision-Connaught-May-7-8th
As you can see we fell apart a bit at 700m and 800m, but that's user error (need more practise wind reading- especially at Connaught!). We could see most of the shots landing in a nice horizontal line across the target.
Unfortunately there is always a downside. I just upgraded to a JP Silent Captured Spring System, and am now having many cycling failures. The gun never did this with the buffer system, seems like it's short stroking as brass is falling maybe 12" from the gun. I have full confidence once this is worked out, this will be a great rifle for these competitions. On a number of matches I had to make up shots due to the cycling problems - despite the stress it's strangely satisfying double tapping movers at 400m!