DETAILS, FICTION AND REMINGTON 7 1/2 PRIMERS

I do know where you coming from - you mean terrible details in the overall sense of ALL SR primers - but I actually imagine that Speer is absolutely only referring to which among their particular CCI primers is effective finest with ball powder.  It might be their "magnum" brisance primers (450 BR4 #41) rather than their "regular" 400 primer.  A