Im going to guess the 150gn will not group well. The projectile jump to lands is quite long vs heavier projectiles, as well as the 1:10 twist favoring heavier projectiles. 165 to 168gn have been grouping well under an inch for me- even with the terrible Bushnell scope. I have installed an EGW 0 MOA rise single piece rail and replaced the optic with a Nikon 3-9 x 40 ProStaff in Warne MEd rings. Have yet to use that set up, but will get to the ranegthis week end to tst.
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