Wildernesshunter, I have Speer loading manual and there is no loading data for 150gr bullet. The bullets you posted picture of is this one
http://www.speer-bullets.com/ballistics/detail.aspx?id=106
The one used in Speer manual is a .310" 123gr Hot-Cor.
Hornady use .308",.310", and Hodgdon use .310",.311",.312"
I'm not sure what Sierra is making.
http://www.speer-bullets.com/ballistics/detail.aspx?id=106
The one used in Speer manual is a .310" 123gr Hot-Cor.
Hornady use .308",.310", and Hodgdon use .310",.311",.312"
I'm not sure what Sierra is making.