I was using the 270gr speers.
I have only tried those and the barnes x's both shot 4 shot groups with all bullets touching at 100.(Can't remember size off top of my head, so you get a general ideea!)
Gun is a push model 70, brux barrel, mcwoody stock.

And I have NO reason or use for a 375!!!!....not first or last I have said that about my gun builds. I realize I have a problem