Don't let that hold you back.I was so tempted to pick one of these up. Great value in my opinion. The proprietary mags was the only thing holding me back.
I had the pleasure of working up handloads for my nephew's s20 in 300 WM. I probably put 200 rounds down the barrel, but did finally get some 1/2 MOA loads at 300 yds with 4831SC (the only powder I could get) 70.0 gr, ELD-X 220's, and CCI 250 primers.
It was a delight to shoot, and I really appreciated the smooth action and adjustable stock.
He ended up dropping a cow elk at 508 yds on the first shot. She just rolled over.