Have you checked POI shift between the Gold Dot 78s and TMKs? I have a bunch of 64 gold dots, but don't mess with them due to the big weight swing from 77s that almost always gives me a significant POI shift.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
For me factory BH 77gr TMK always shoots 2-3" higher using a 50yd zero using different barrels(left or right shift will depend on your barrel). Granted it has a ~150 fps advantage out of a 14.5" but I bet if you loaded the 75gr GDSP to the same velocity the vertical shift due to velocity would be minimal.
Ubet, maybe you could bump up your velocity ? I know BH is king but, We got 2,508 fps out of Black Hills factory ammo out of a 10.5 barrel. God and BH's only knows how they do it and maybe not get BH velocity but I bet you could get a bump.
On the other hand, that may not interest you. Good luck.
I have the 64grain GD on my HD weapon.
PB
Last edited by Pappabear; 08-28-20 at 14:56.
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