MD,
Given the results of your test on the "new" GS, is there really any reason to use them over regular Speer Hot Cores? I was thinking of the 250 gr. GS for my .35 Whelen, but maybe I will get just as good a result with the standard 250 gr. slug and save a few bucks to boot.
I have also been using the Speer Hot Core 145 gr. 7mm in my 7mm-08, now I am also not sure of the need to go to the Grand Slam for that rifle either.
