What are your thoughts on Black Hill’s 77gr TMK? With the polymer tip for earlier fragmentation?
Printable View
Excellent expansion and higher retained weight than the lighter gold dots or other bonded SPs. Works well out of short barrels and long barrels. Low velocity but I wont be shooting very far with it.
https://www.youtube.com/watch?v=2lkI36eUoy4
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.
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