I bought a few of those MDT AICS .308 10 rounders and I'm glad they work will with my Ruger Gunsite Scout! But that's just for playing around at the range. For hunting I was able to buy the Magpul 700 Hunter Stock Magazine Well adapter (bought TWO of them) and they come WITH one 5 rd/ 6 rd magazine for .308 setups.
So with the TWO of the adapters, I modified my M700 SPS Tupperware stocks to fit these adapters and now I have TWO of the Magpul mags to go with my AICS compatible hunting M700's and also this Gunsite Scout (iron sighted deer rifle for the November deer season coming up)
I did buy my Ruger Factory 3 rounders from Wolverine Supplies about Sep 2015 and they set me back $39.99 each. I found them handy to carry last moose and deer / rifle season. Nice and kinda flush near the balance point.
This season, I will try the 5 rounders and see how they carry.
Cheers,
Barney