I tested various loads at 100 yards from bags using the irons and the most accurate for me was the Winchester 36 grain loading
http://smith-wessonforum.com/smith-wesson-m-p-15-22/253028-s-w-m-p-15-22-100yd-range-report-various-loads-tested.html
Nope
There isn't anything I can do with a 22mag that I can't do for a fraction of the cost with a 22lr.
For Pete's sake 22mag ammunition costs as much as 9mm and I can't reload the stuff.
Yes
There are plenty of success stories if you care to read them. And even if you have a warranty issue (mostly tied to older 15/22's) its not like you're dealing with Taurus or something, S&W actually takes care of its customers.
I have read that the twist rested on the m&p 15/22 is slightly faster than the saami standard 1-16" twist. This appears to be supported by the fact that even as far out as 100yds my 15/22 will shoot feed and most importantly group with aguila's 60g sss load with no signs of keyholing evident...
Newbie here with a first time post about my first day out with the 15/22
Rifle: s&w m&p 15/22
Wind: calm
Temp: 95°
All groups were fired at 100 yds using the stock iron sights off sandbags. I'm certain my shooting ability was the limiting factor today but with that said trends are clear to see...