Herter's Grand Prix shotshell wads

freddy81

I came across a couple thousand Herter's Grand Prix shotshell wads, but I can't seem to find any load data to go with them. I was hoping to load up some good long range bird loads as they seem well-suited for it. Anybody have any ideas?

CapnMidnight

Are you talking about the old red Herters wads?
W.D.

freddy81

No, the ones I have are a semi-transparent white with only two cuts in the shot cup. The paper in the box says they have a 7/8" shot cup.

mastershooter357

page 155 herters professional loading manual/lists these to load same as there vandelee wad/sooo 1 1/8 18 to 19 red dot//19.5 to 20 green dot//21 unique/17.5to 18.5 77x//1 1/4 30herco/25 pb//all the other powders listed are discontinued/