The M&P 15 TS is a 1:7 twist barrel. http://www.smith-wesson.com/webapp/w...layErrorView_Y

My guess is my 14.5" barrel vs his 16" made some of the difference - and he was just a better shooter.

Regardless all our groups were in the 1.5" range so I'm happy. For now...

It was a great day nonetheless.

Bill