I've been developing a load for my K31 with an eye toward matching the accuracy of GP11. Although many have assured me that GP11 can be bested in the accuracy department with reloads, I've not had such luck--until now.
Recently loaded 49 grains of AA4350, once-fired Prvi brass, CCI 200 primer and a Nosler J4 168 grain BTHP bullet and obtained this result @ 100 yards
I usually shoot a group with GP11 as a control and those obtained this result
i
If I throw out the flyers, (one in the case of GP11 and two for my reloads), I actually come up with groups of almost exactly the same size--about .9", or just under 1 MOA. I'm willing to attribute the flyers to my 54 year old eyes and the K31's iron sights