Shooting groups with tumbling bullets!?!?

Sometimes odd things happen at the range.  This is one of those events that happened by accident.  I was working up some reduced-recoil loads with IMR Trail Boss for my 308 Winchester and fired a couple of groups with very slow, tumbling bullets.

This is a 5-shot group, at 100 yards, shot from a bipod with rear bag and a tumbling 168 grain Sierra MatchKing (SMK).  It measures 1.286″ (1.228 MOA)!

I’d attribute the tumbling to the low, 1,156 feet/second muzzle velocity of the load.

So in case you were wondering; yes, you can shoot groups with tumbling bullets.  At least you can with the 168 grain SMK!