BigN
Member
I just purchased a box of Speer 44 Mag bullets, 240 gr Plinker JSP marked #4454. There is no data in my Speer Manual and after several attempts at getting reloading data from the company, still no answer. Is there any reason I couldn't use the data in the book from the other 240gr JSP Speer bullets? I'm specifically looking for Unique, H110, or Bullseye data.