Help! Inconsistent/random shot group

I have the same gun. Have done a lot of work to get sub 1/2" groups.

Make absolutely sure scope bases and rings are installled correctly and Loktited [blue].

Free float the barrel- more than just a dollar bill's thickness.

Glass bed the action and about 2" of the barrel. Torque action screws and Loktite.

Sierra 168 Match Kings are good. They will probably group best if seated close to the lands. Mine are well into the lands. You would have to single load at this length.

Adjust the amount of powder. Start low, shoot 3 shot groups, adjust up .5 grains at a time until you get the best group. Of course, always watch for pressure signs. Varget powder may do better.

Allow more time between shots; hot barrel not good. This, by itself may solve your problem.

I clean my barrel after every 10 shots or so. Thorough, not just one pass with a bore snake. [But I am a benchrest shooter].

If sub MOA is OK with you, glass bed and free float is best bet to fix problem.

Let us know .

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